diff --git a/.gitattributes b/.gitattributes
index a6344aac8c09253b3b630fb776ae94478aa0275b..b6fbd6fd81edb55cf3cef0d436aae2992c479fe1 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -33,3 +33,19 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
*.zip filter=lfs diff=lfs merge=lfs -text
*.zst filter=lfs diff=lfs merge=lfs -text
*tfevents* filter=lfs diff=lfs merge=lfs -text
+assets/dynamic_accent_banner.jpg filter=lfs diff=lfs merge=lfs -text
+prompts/clip0_waxal_yor_yor_1258.wav filter=lfs diff=lfs merge=lfs -text
+prompts/clip1_waxal_yor_yor_1205.wav filter=lfs diff=lfs merge=lfs -text
+prompts/clip2_waxal_yor_yor_1263.wav filter=lfs diff=lfs merge=lfs -text
+prompts/clip3_waxal_yor_yor_1218.wav filter=lfs diff=lfs merge=lfs -text
+prompts/voice_waxal_ibo_5.wav filter=lfs diff=lfs merge=lfs -text
+prompts/voice_waxal_yor_5.wav filter=lfs diff=lfs merge=lfs -text
+samples/flash_ibo_waxal_ibo_5_default.mp3 filter=lfs diff=lfs merge=lfs -text
+samples/pro_cs_anchor_default.mp3 filter=lfs diff=lfs merge=lfs -text
+samples/pro_cs_anchor_many_pauses.mp3 filter=lfs diff=lfs merge=lfs -text
+samples/pro_cs_anchor_slow.mp3 filter=lfs diff=lfs merge=lfs -text
+samples/pro_cs_waxal_ibo_5_many_pauses.mp3 filter=lfs diff=lfs merge=lfs -text
+samples/pro_ibo_anchor_many_pauses.mp3 filter=lfs diff=lfs merge=lfs -text
+samples/pro_ibo_anchor_slow.mp3 filter=lfs diff=lfs merge=lfs -text
+samples/pro_ibo_waxal_ibo_5_default.mp3 filter=lfs diff=lfs merge=lfs -text
+samples/pro_ibo_waxal_ibo_5_many_pauses.mp3 filter=lfs diff=lfs merge=lfs -text
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000000000000000000000000000000000000..2d58298e6eda10e7204abb52722efbc840db2390
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,428 @@
+Attribution-ShareAlike 4.0 International
+
+=======================================================================
+
+Creative Commons Corporation ("Creative Commons") is not a law firm and
+does not provide legal services or legal advice. Distribution of
+Creative Commons public licenses does not create a lawyer-client or
+other relationship. Creative Commons makes its licenses and related
+information available on an "as-is" basis. Creative Commons gives no
+warranties regarding its licenses, any material licensed under their
+terms and conditions, or any related information. Creative Commons
+disclaims all liability for damages resulting from their use to the
+fullest extent possible.
+
+Using Creative Commons Public Licenses
+
+Creative Commons public licenses provide a standard set of terms and
+conditions that creators and other rights holders may use to share
+original works of authorship and other material subject to copyright
+and certain other rights specified in the public license below. The
+following considerations are for informational purposes only, are not
+exhaustive, and do not form part of our licenses.
+
+ Considerations for licensors: Our public licenses are
+ intended for use by those authorized to give the public
+ permission to use material in ways otherwise restricted by
+ copyright and certain other rights. Our licenses are
+ irrevocable. Licensors should read and understand the terms
+ and conditions of the license they choose before applying it.
+ Licensors should also secure all rights necessary before
+ applying our licenses so that the public can reuse the
+ material as expected. Licensors should clearly mark any
+ material not subject to the license. This includes other CC-
+ licensed material, or material used under an exception or
+ limitation to copyright. More considerations for licensors:
+ wiki.creativecommons.org/Considerations_for_licensors
+
+ Considerations for the public: By using one of our public
+ licenses, a licensor grants the public permission to use the
+ licensed material under specified terms and conditions. If
+ the licensor's permission is not necessary for any reason--for
+ example, because of any applicable exception or limitation to
+ copyright--then that use is not regulated by the license. Our
+ licenses grant only permissions under copyright and certain
+ other rights that a licensor has authority to grant. Use of
+ the licensed material may still be restricted for other
+ reasons, including because others have copyright or other
+ rights in the material. A licensor may make special requests,
+ such as asking that all changes be marked or described.
+ Although not required by our licenses, you are encouraged to
+ respect those requests where reasonable. More considerations
+ for the public:
+ wiki.creativecommons.org/Considerations_for_licensees
+
+=======================================================================
+
+Creative Commons Attribution-ShareAlike 4.0 International Public
+License
+
+By exercising the Licensed Rights (defined below), You accept and agree
+to be bound by the terms and conditions of this Creative Commons
+Attribution-ShareAlike 4.0 International Public License ("Public
+License"). To the extent this Public License may be interpreted as a
+contract, You are granted the Licensed Rights in consideration of Your
+acceptance of these terms and conditions, and the Licensor grants You
+such rights in consideration of benefits the Licensor receives from
+making the Licensed Material available under these terms and
+conditions.
+
+
+Section 1 -- Definitions.
+
+ a. Adapted Material means material subject to Copyright and Similar
+ Rights that is derived from or based upon the Licensed Material
+ and in which the Licensed Material is translated, altered,
+ arranged, transformed, or otherwise modified in a manner requiring
+ permission under the Copyright and Similar Rights held by the
+ Licensor. For purposes of this Public License, where the Licensed
+ Material is a musical work, performance, or sound recording,
+ Adapted Material is always produced where the Licensed Material is
+ synched in timed relation with a moving image.
+
+ b. Adapter's License means the license You apply to Your Copyright
+ and Similar Rights in Your contributions to Adapted Material in
+ accordance with the terms and conditions of this Public License.
+
+ c. BY-SA Compatible License means a license listed at
+ creativecommons.org/compatiblelicenses, approved by Creative
+ Commons as essentially the equivalent of this Public License.
+
+ d. Copyright and Similar Rights means copyright and/or similar rights
+ closely related to copyright including, without limitation,
+ performance, broadcast, sound recording, and Sui Generis Database
+ Rights, without regard to how the rights are labeled or
+ categorized. For purposes of this Public License, the rights
+ specified in Section 2(b)(1)-(2) are not Copyright and Similar
+ Rights.
+
+ e. Effective Technological Measures means those measures that, in the
+ absence of proper authority, may not be circumvented under laws
+ fulfilling obligations under Article 11 of the WIPO Copyright
+ Treaty adopted on December 20, 1996, and/or similar international
+ agreements.
+
+ f. Exceptions and Limitations means fair use, fair dealing, and/or
+ any other exception or limitation to Copyright and Similar Rights
+ that applies to Your use of the Licensed Material.
+
+ g. License Elements means the license attributes listed in the name
+ of a Creative Commons Public License. The License Elements of this
+ Public License are Attribution and ShareAlike.
+
+ h. Licensed Material means the artistic or literary work, database,
+ or other material to which the Licensor applied this Public
+ License.
+
+ i. Licensed Rights means the rights granted to You subject to the
+ terms and conditions of this Public License, which are limited to
+ all Copyright and Similar Rights that apply to Your use of the
+ Licensed Material and that the Licensor has authority to license.
+
+ j. Licensor means the individual(s) or entity(ies) granting rights
+ under this Public License.
+
+ k. Share means to provide material to the public by any means or
+ process that requires permission under the Licensed Rights, such
+ as reproduction, public display, public performance, distribution,
+ dissemination, communication, or importation, and to make material
+ available to the public including in ways that members of the
+ public may access the material from a place and at a time
+ individually chosen by them.
+
+ l. Sui Generis Database Rights means rights other than copyright
+ resulting from Directive 96/9/EC of the European Parliament and of
+ the Council of 11 March 1996 on the legal protection of databases,
+ as amended and/or succeeded, as well as other essentially
+ equivalent rights anywhere in the world.
+
+ m. You means the individual or entity exercising the Licensed Rights
+ under this Public License. Your has a corresponding meaning.
+
+
+Section 2 -- Scope.
+
+ a. License grant.
+
+ 1. Subject to the terms and conditions of this Public License,
+ the Licensor hereby grants You a worldwide, royalty-free,
+ non-sublicensable, non-exclusive, irrevocable license to
+ exercise the Licensed Rights in the Licensed Material to:
+
+ a. reproduce and Share the Licensed Material, in whole or
+ in part; and
+
+ b. produce, reproduce, and Share Adapted Material.
+
+ 2. Exceptions and Limitations. For the avoidance of doubt, where
+ Exceptions and Limitations apply to Your use, this Public
+ License does not apply, and You do not need to comply with
+ its terms and conditions.
+
+ 3. Term. The term of this Public License is specified in Section
+ 6(a).
+
+ 4. Media and formats; technical modifications allowed. The
+ Licensor authorizes You to exercise the Licensed Rights in
+ all media and formats whether now known or hereafter created,
+ and to make technical modifications necessary to do so. The
+ Licensor waives and/or agrees not to assert any right or
+ authority to forbid You from making technical modifications
+ necessary to exercise the Licensed Rights, including
+ technical modifications necessary to circumvent Effective
+ Technological Measures. For purposes of this Public License,
+ simply making modifications authorized by this Section 2(a)
+ (4) never produces Adapted Material.
+
+ 5. Downstream recipients.
+
+ a. Offer from the Licensor -- Licensed Material. Every
+ recipient of the Licensed Material automatically
+ receives an offer from the Licensor to exercise the
+ Licensed Rights under the terms and conditions of this
+ Public License.
+
+ b. Additional offer from the Licensor -- Adapted Material.
+ Every recipient of Adapted Material from You
+ automatically receives an offer from the Licensor to
+ exercise the Licensed Rights in the Adapted Material
+ under the conditions of the Adapter's License You apply.
+
+ c. No downstream restrictions. You may not offer or impose
+ any additional or different terms or conditions on, or
+ apply any Effective Technological Measures to, the
+ Licensed Material if doing so restricts exercise of the
+ Licensed Rights by any recipient of the Licensed
+ Material.
+
+ 6. No endorsement. Nothing in this Public License constitutes or
+ may be construed as permission to assert or imply that You
+ are, or that Your use of the Licensed Material is, connected
+ with, or sponsored, endorsed, or granted official status by,
+ the Licensor or others designated to receive attribution as
+ provided in Section 3(a)(1)(A)(i).
+
+ b. Other rights.
+
+ 1. Moral rights, such as the right of integrity, are not
+ licensed under this Public License, nor are publicity,
+ privacy, and/or other similar personality rights; however, to
+ the extent possible, the Licensor waives and/or agrees not to
+ assert any such rights held by the Licensor to the limited
+ extent necessary to allow You to exercise the Licensed
+ Rights, but not otherwise.
+
+ 2. Patent and trademark rights are not licensed under this
+ Public License.
+
+ 3. To the extent possible, the Licensor waives any right to
+ collect royalties from You for the exercise of the Licensed
+ Rights, whether directly or through a collecting society
+ under any voluntary or waivable statutory or compulsory
+ licensing scheme. In all other cases the Licensor expressly
+ reserves any right to collect such royalties.
+
+
+Section 3 -- License Conditions.
+
+Your exercise of the Licensed Rights is expressly made subject to the
+following conditions.
+
+ a. Attribution.
+
+ 1. If You Share the Licensed Material (including in modified
+ form), You must:
+
+ a. retain the following if it is supplied by the Licensor
+ with the Licensed Material:
+
+ i. identification of the creator(s) of the Licensed
+ Material and any others designated to receive
+ attribution, in any reasonable manner requested by
+ the Licensor (including by pseudonym if
+ designated);
+
+ ii. a copyright notice;
+
+ iii. a notice that refers to this Public License;
+
+ iv. a notice that refers to the disclaimer of
+ warranties;
+
+ v. a URI or hyperlink to the Licensed Material to the
+ extent reasonably practicable;
+
+ b. indicate if You modified the Licensed Material and
+ retain an indication of any previous modifications; and
+
+ c. indicate the Licensed Material is licensed under this
+ Public License, and include the text of, or the URI or
+ hyperlink to, this Public License.
+
+ 2. You may satisfy the conditions in Section 3(a)(1) in any
+ reasonable manner based on the medium, means, and context in
+ which You Share the Licensed Material. For example, it may be
+ reasonable to satisfy the conditions by providing a URI or
+ hyperlink to a resource that includes the required
+ information.
+
+ 3. If requested by the Licensor, You must remove any of the
+ information required by Section 3(a)(1)(A) to the extent
+ reasonably practicable.
+
+ b. ShareAlike.
+
+ In addition to the conditions in Section 3(a), if You Share
+ Adapted Material You produce, the following conditions also apply.
+
+ 1. The Adapter's License You apply must be a Creative Commons
+ license with the same License Elements, this version or
+ later, or a BY-SA Compatible License.
+
+ 2. You must include the text of, or the URI or hyperlink to, the
+ Adapter's License You apply. You may satisfy this condition
+ in any reasonable manner based on the medium, means, and
+ context in which You Share Adapted Material.
+
+ 3. You may not offer or impose any additional or different terms
+ or conditions on, or apply any Effective Technological
+ Measures to, Adapted Material that restrict exercise of the
+ rights granted under the Adapter's License You apply.
+
+
+Section 4 -- Sui Generis Database Rights.
+
+Where the Licensed Rights include Sui Generis Database Rights that
+apply to Your use of the Licensed Material:
+
+ a. for the avoidance of doubt, Section 2(a)(1) grants You the right
+ to extract, reuse, reproduce, and Share all or a substantial
+ portion of the contents of the database;
+
+ b. if You include all or a substantial portion of the database
+ contents in a database in which You have Sui Generis Database
+ Rights, then the database in which You have Sui Generis Database
+ Rights (but not its individual contents) is Adapted Material,
+ including for purposes of Section 3(b); and
+
+ c. You must comply with the conditions in Section 3(a) if You Share
+ all or a substantial portion of the contents of the database.
+
+For the avoidance of doubt, this Section 4 supplements and does not
+replace Your obligations under this Public License where the Licensed
+Rights include other Copyright and Similar Rights.
+
+
+Section 5 -- Disclaimer of Warranties and Limitation of Liability.
+
+ a. UNLESS OTHERWISE SEPARATELY UNDERTAKEN BY THE LICENSOR, TO THE
+ EXTENT POSSIBLE, THE LICENSOR OFFERS THE LICENSED MATERIAL AS-IS
+ AND AS-AVAILABLE, AND MAKES NO REPRESENTATIONS OR WARRANTIES OF
+ ANY KIND CONCERNING THE LICENSED MATERIAL, WHETHER EXPRESS,
+ IMPLIED, STATUTORY, OR OTHER. THIS INCLUDES, WITHOUT LIMITATION,
+ WARRANTIES OF TITLE, MERCHANTABILITY, FITNESS FOR A PARTICULAR
+ PURPOSE, NON-INFRINGEMENT, ABSENCE OF LATENT OR OTHER DEFECTS,
+ ACCURACY, OR THE PRESENCE OR ABSENCE OF ERRORS, WHETHER OR NOT
+ KNOWN OR DISCOVERABLE. WHERE DISCLAIMERS OF WARRANTIES ARE NOT
+ ALLOWED IN FULL OR IN PART, THIS DISCLAIMER MAY NOT APPLY TO YOU.
+
+ b. TO THE EXTENT POSSIBLE, IN NO EVENT WILL THE LICENSOR BE LIABLE
+ TO YOU ON ANY LEGAL THEORY (INCLUDING, WITHOUT LIMITATION,
+ NEGLIGENCE) OR OTHERWISE FOR ANY DIRECT, SPECIAL, INDIRECT,
+ INCIDENTAL, CONSEQUENTIAL, PUNITIVE, EXEMPLARY, OR OTHER LOSSES,
+ COSTS, EXPENSES, OR DAMAGES ARISING OUT OF THIS PUBLIC LICENSE OR
+ USE OF THE LICENSED MATERIAL, EVEN IF THE LICENSOR HAS BEEN
+ ADVISED OF THE POSSIBILITY OF SUCH LOSSES, COSTS, EXPENSES, OR
+ DAMAGES. WHERE A LIMITATION OF LIABILITY IS NOT ALLOWED IN FULL OR
+ IN PART, THIS LIMITATION MAY NOT APPLY TO YOU.
+
+ c. The disclaimer of warranties and limitation of liability provided
+ above shall be interpreted in a manner that, to the extent
+ possible, most closely approximates an absolute disclaimer and
+ waiver of all liability.
+
+
+Section 6 -- Term and Termination.
+
+ a. This Public License applies for the term of the Copyright and
+ Similar Rights licensed here. However, if You fail to comply with
+ this Public License, then Your rights under this Public License
+ terminate automatically.
+
+ b. Where Your right to use the Licensed Material has terminated under
+ Section 6(a), it reinstates:
+
+ 1. automatically as of the date the violation is cured, provided
+ it is cured within 30 days of Your discovery of the
+ violation; or
+
+ 2. upon express reinstatement by the Licensor.
+
+ For the avoidance of doubt, this Section 6(b) does not affect any
+ right the Licensor may have to seek remedies for Your violations
+ of this Public License.
+
+ c. For the avoidance of doubt, the Licensor may also offer the
+ Licensed Material under separate terms or conditions or stop
+ distributing the Licensed Material at any time; however, doing so
+ will not terminate this Public License.
+
+ d. Sections 1, 5, 6, 7, and 8 survive termination of this Public
+ License.
+
+
+Section 7 -- Other Terms and Conditions.
+
+ a. The Licensor shall not be bound by any additional or different
+ terms or conditions communicated by You unless expressly agreed.
+
+ b. Any arrangements, understandings, or agreements regarding the
+ Licensed Material not stated herein are separate from and
+ independent of the terms and conditions of this Public License.
+
+
+Section 8 -- Interpretation.
+
+ a. For the avoidance of doubt, this Public License does not, and
+ shall not be interpreted to, reduce, limit, restrict, or impose
+ conditions on any use of the Licensed Material that could lawfully
+ be made without permission under this Public License.
+
+ b. To the extent possible, if any provision of this Public License is
+ deemed unenforceable, it shall be automatically reformed to the
+ minimum extent necessary to make it enforceable. If the provision
+ cannot be reformed, it shall be severed from this Public License
+ without affecting the enforceability of the remaining terms and
+ conditions.
+
+ c. No term or condition of this Public License will be waived and no
+ failure to comply consented to unless expressly agreed to by the
+ Licensor.
+
+ d. Nothing in this Public License constitutes or may be interpreted
+ as a limitation upon, or waiver of, any privileges and immunities
+ that apply to the Licensor or You, including from the legal
+ processes of any jurisdiction or authority.
+
+
+=======================================================================
+
+Creative Commons is not a party to its public
+licenses. Notwithstanding, Creative Commons may elect to apply one of
+its public licenses to material it publishes and in those instances
+will be considered the “Licensor.” The text of the Creative Commons
+public licenses is dedicated to the public domain under the CC0 Public
+Domain Dedication. Except for the limited purpose of indicating that
+material is shared under a Creative Commons public license or as
+otherwise permitted by the Creative Commons policies published at
+creativecommons.org/policies, Creative Commons does not authorize the
+use of the trademark "Creative Commons" or any other trademark or logo
+of Creative Commons without its prior written consent including,
+without limitation, in connection with any unauthorized modifications
+to any of its public licenses or any other arrangements,
+understandings, or agreements concerning use of licensed material. For
+the avoidance of doubt, this paragraph does not form part of the
+public licenses.
+
+Creative Commons may be contacted at creativecommons.org.
+
diff --git a/LICENSE-CODE b/LICENSE-CODE
new file mode 100644
index 0000000000000000000000000000000000000000..d645695673349e3947e8e5ae42332d0ac3164cd7
--- /dev/null
+++ b/LICENSE-CODE
@@ -0,0 +1,202 @@
+
+ Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
+ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+ 1. Definitions.
+
+ "License" shall mean the terms and conditions for use, reproduction,
+ and distribution as defined by Sections 1 through 9 of this document.
+
+ "Licensor" shall mean the copyright owner or entity authorized by
+ the copyright owner that is granting the License.
+
+ "Legal Entity" shall mean the union of the acting entity and all
+ other entities that control, are controlled by, or are under common
+ control with that entity. For the purposes of this definition,
+ "control" means (i) the power, direct or indirect, to cause the
+ direction or management of such entity, whether by contract or
+ otherwise, or (ii) ownership of fifty percent (50%) or more of the
+ outstanding shares, or (iii) beneficial ownership of such entity.
+
+ "You" (or "Your") shall mean an individual or Legal Entity
+ exercising permissions granted by this License.
+
+ "Source" form shall mean the preferred form for making modifications,
+ including but not limited to software source code, documentation
+ source, and configuration files.
+
+ "Object" form shall mean any form resulting from mechanical
+ transformation or translation of a Source form, including but
+ not limited to compiled object code, generated documentation,
+ and conversions to other media types.
+
+ "Work" shall mean the work of authorship, whether in Source or
+ Object form, made available under the License, as indicated by a
+ copyright notice that is included in or attached to the work
+ (an example is provided in the Appendix below).
+
+ "Derivative Works" shall mean any work, whether in Source or Object
+ form, that is based on (or derived from) the Work and for which the
+ editorial revisions, annotations, elaborations, or other modifications
+ represent, as a whole, an original work of authorship. For the purposes
+ of this License, Derivative Works shall not include works that remain
+ separable from, or merely link (or bind by name) to the interfaces of,
+ the Work and Derivative Works thereof.
+
+ "Contribution" shall mean any work of authorship, including
+ the original version of the Work and any modifications or additions
+ to that Work or Derivative Works thereof, that is intentionally
+ submitted to Licensor for inclusion in the Work by the copyright owner
+ or by an individual or Legal Entity authorized to submit on behalf of
+ the copyright owner. For the purposes of this definition, "submitted"
+ means any form of electronic, verbal, or written communication sent
+ to the Licensor or its representatives, including but not limited to
+ communication on electronic mailing lists, source code control systems,
+ and issue tracking systems that are managed by, or on behalf of, the
+ Licensor for the purpose of discussing and improving the Work, but
+ excluding communication that is conspicuously marked or otherwise
+ designated in writing by the copyright owner as "Not a Contribution."
+
+ "Contributor" shall mean Licensor and any individual or Legal Entity
+ on behalf of whom a Contribution has been received by Licensor and
+ subsequently incorporated within the Work.
+
+ 2. Grant of Copyright License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
+ worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+ copyright license to reproduce, prepare Derivative Works of,
+ publicly display, publicly perform, sublicense, and distribute the
+ Work and such Derivative Works in Source or Object form.
+
+ 3. Grant of Patent License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
+ worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+ (except as stated in this section) patent license to make, have made,
+ use, offer to sell, sell, import, and otherwise transfer the Work,
+ where such license applies only to those patent claims licensable
+ by such Contributor that are necessarily infringed by their
+ Contribution(s) alone or by combination of their Contribution(s)
+ with the Work to which such Contribution(s) was submitted. If You
+ institute patent litigation against any entity (including a
+ cross-claim or counterclaim in a lawsuit) alleging that the Work
+ or a Contribution incorporated within the Work constitutes direct
+ or contributory patent infringement, then any patent licenses
+ granted to You under this License for that Work shall terminate
+ as of the date such litigation is filed.
+
+ 4. Redistribution. You may reproduce and distribute copies of the
+ Work or Derivative Works thereof in any medium, with or without
+ modifications, and in Source or Object form, provided that You
+ meet the following conditions:
+
+ (a) You must give any other recipients of the Work or
+ Derivative Works a copy of this License; and
+
+ (b) You must cause any modified files to carry prominent notices
+ stating that You changed the files; and
+
+ (c) You must retain, in the Source form of any Derivative Works
+ that You distribute, all copyright, patent, trademark, and
+ attribution notices from the Source form of the Work,
+ excluding those notices that do not pertain to any part of
+ the Derivative Works; and
+
+ (d) If the Work includes a "NOTICE" text file as part of its
+ distribution, then any Derivative Works that You distribute must
+ include a readable copy of the attribution notices contained
+ within such NOTICE file, excluding those notices that do not
+ pertain to any part of the Derivative Works, in at least one
+ of the following places: within a NOTICE text file distributed
+ as part of the Derivative Works; within the Source form or
+ documentation, if provided along with the Derivative Works; or,
+ within a display generated by the Derivative Works, if and
+ wherever such third-party notices normally appear. The contents
+ of the NOTICE file are for informational purposes only and
+ do not modify the License. You may add Your own attribution
+ notices within Derivative Works that You distribute, alongside
+ or as an addendum to the NOTICE text from the Work, provided
+ that such additional attribution notices cannot be construed
+ as modifying the License.
+
+ You may add Your own copyright statement to Your modifications and
+ may provide additional or different license terms and conditions
+ for use, reproduction, or distribution of Your modifications, or
+ for any such Derivative Works as a whole, provided Your use,
+ reproduction, and distribution of the Work otherwise complies with
+ the conditions stated in this License.
+
+ 5. Submission of Contributions. Unless You explicitly state otherwise,
+ any Contribution intentionally submitted for inclusion in the Work
+ by You to the Licensor shall be under the terms and conditions of
+ this License, without any additional terms or conditions.
+ Notwithstanding the above, nothing herein shall supersede or modify
+ the terms of any separate license agreement you may have executed
+ with Licensor regarding such Contributions.
+
+ 6. Trademarks. This License does not grant permission to use the trade
+ names, trademarks, service marks, or product names of the Licensor,
+ except as required for reasonable and customary use in describing the
+ origin of the Work and reproducing the content of the NOTICE file.
+
+ 7. Disclaimer of Warranty. Unless required by applicable law or
+ agreed to in writing, Licensor provides the Work (and each
+ Contributor provides its Contributions) on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ implied, including, without limitation, any warranties or conditions
+ of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+ PARTICULAR PURPOSE. You are solely responsible for determining the
+ appropriateness of using or redistributing the Work and assume any
+ risks associated with Your exercise of permissions under this License.
+
+ 8. Limitation of Liability. In no event and under no legal theory,
+ whether in tort (including negligence), contract, or otherwise,
+ unless required by applicable law (such as deliberate and grossly
+ negligent acts) or agreed to in writing, shall any Contributor be
+ liable to You for damages, including any direct, indirect, special,
+ incidental, or consequential damages of any character arising as a
+ result of this License or out of the use or inability to use the
+ Work (including but not limited to damages for loss of goodwill,
+ work stoppage, computer failure or malfunction, or any and all
+ other commercial damages or losses), even if such Contributor
+ has been advised of the possibility of such damages.
+
+ 9. Accepting Warranty or Additional Liability. While redistributing
+ the Work or Derivative Works thereof, You may choose to offer,
+ and charge a fee for, acceptance of support, warranty, indemnity,
+ or other liability obligations and/or rights consistent with this
+ License. However, in accepting such obligations, You may act only
+ on Your own behalf and on Your sole responsibility, not on behalf
+ of any other Contributor, and only if You agree to indemnify,
+ defend, and hold each Contributor harmless for any liability
+ incurred by, or claims asserted against, such Contributor by reason
+ of your accepting any such warranty or additional liability.
+
+ END OF TERMS AND CONDITIONS
+
+ APPENDIX: How to apply the Apache License to your work.
+
+ To apply the Apache License to your work, attach the following
+ boilerplate notice, with the fields enclosed by brackets "[]"
+ replaced with your own identifying information. (Don't include
+ the brackets!) The text should be enclosed in the appropriate
+ comment syntax for the file format. We also recommend that a
+ file or class name and description of purpose be included on the
+ same "printed page" as the copyright notice for easier
+ identification within third-party archives.
+
+ Copyright [yyyy] [name of copyright owner]
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
diff --git a/README.md b/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..19f3bf2010cd81ac6ff56a44e85dee643c840188
--- /dev/null
+++ b/README.md
@@ -0,0 +1,247 @@
+---
+license: cc-by-sa-4.0
+language:
+ - en
+ - pcm
+ - yo
+ - ig
+ - ha
+base_model:
+ - FunAudioLLM/Fun-CosyVoice3-0.5B-2512
+pipeline_tag: text-to-speech
+library_name: pytorch
+tags:
+ - text-to-speech
+ - code-switching
+ - nigerian-languages
+ - igbo
+ - yoruba
+ - hausa
+ - nigerian-pidgin
+ - cosyvoice3
+ - instruction-tts
+ - dpo
+ - experimental
+datasets:
+ - google/WaxalNLP
+ - McGill-NLP/NaijaS2ST
+ - AfriSpeech/open-bible-speech-african
+ - nkowaokwu/ibo-dict
+ - google/fleurs
+---
+
+
+
+# Dynamic Accent Pro v1.1
+
+**Experimental prompt-controlled Nigerian TTS and code-switching technology** by Modular. English, Nigerian Pidgin, Igbo, Yoruba and Hausa, mixed inside one sentence and spoken by one consistent voice, with a plain-English **style instruction** (`--instruct`) that steers pace and pausing.
+
+Pro v1.1 is a research release, not a production system. It is the Flash recipe (CosyVoice3 LM fine-tuned on licensed Nigerian-language speech, then DPO) with a new instruction layer on top. Read **What works and what does not** before using it.
+
+## What works and what does not
+
+| control | status | how |
+|---|---|---|
+| **Pace** ("speak slowly", "speak fast") | **works** | read by the LM from the instruction, sharpened by classifier-free guidance (`--guidance 2`, the default). Slow vs fast is ordered correctly on 18/18 held-out items; slow ≈ 0.89× and fast ≈ 1.15× the default articulation rate |
+| **Pauses** ("plenty of pauses", "hardly any pauses") | **works through a text step** | the instruction also edits the text before synthesis (`pause_text.py`: inserts the model's learned `[pause]` tag for "many", strips commas and pause tags for "few"). Many ≈ 1.28× default pause rate; few ≈ 0.91×. The LM alone barely moves pauses, so `--no_text_pauses` mostly turns this off |
+| Calm / lively tone | **not advertised** | trained, but indistinguishable from chance in our measurements. The words are accepted and ignored in effect |
+| Emotion (happy, sad, angry, …) | **no** | not trained, no data |
+| Code-switching from **tags** (`… …`) | works (the core Dynamic Accent capability) | language embeddings + a speaker token keep one voice across switches |
+| Code-switching from a **request** (`--codeswitch_prompt "mostly English, Igbo greetings"`) | **experimental, separate step** | a text LLM ([Qwen/Qwen3-32B](https://huggingface.co/Qwen/Qwen3-32B), Apache-2.0, not bundled) rewrites plain text into tagged code-switched text *before* synthesis. It is not a TTS capability. Its Pidgin and Hausa are usable; **its Igbo and Yoruba beyond simple greetings are weak and often wrong**, so always read the printed tagged text and fix it |
+
+Without `--instruct`, `infer.py` uses Flash-DPO (the default version). Passing `--instruct` switches to Pro automatically unless you set `--version`; `--version pro` without an instruction uses Pro's default prompt, trained on native-like clips.
+
+## Versions and voices
+
+| version | LM | notes |
+|---|---|---|
+| `pro` (used automatically with `--instruct`) | `checkpoints/pro/flash_instruct` | Pro v1.1: Flash-DPO → instruction SFT → DPO polish. Instruction control, CFG 2.0 on the instruction, text pause step |
+| `flash` (**default**) | `checkpoints/flash/flash_dpo` | Flash-DPO (no instruction control), the default when no `--instruct` is given: it sounds more natural on plain code-switched text. A/B: `--compare` renders the same text with both |
+
+Both use the stock Fun-CosyVoice3-0.5B-2512 flow and vocoder, zero-shot from the voice clip, and the same text front-end (numbers verbalised; missing Yoruba/Igbo diacritics restored by `checkpoints/flash/diacritics_byt5`).
+
+| voice (`--voice`) | who |
+|---|---|
+| `anchor_male` (default) | WAXAL Media Trust Yoruba speaker 4 (male), the voice both models were trained around |
+| `waxal_ibo_5_female` | WAXAL Igbo speaker 5 (female), zero-shot from a 6.6 s clip |
+| `waxal_yor_5_female` | WAXAL Yoruba speaker 5 (female), zero-shot; short prompt, so short pauses and more clipped endings |
+
+## Setup (single CUDA GPU)
+
+```bash
+git clone --recursive https://github.com/FunAudioLLM/CosyVoice.git
+cd CosyVoice && git checkout 074ca6dc9e80a2f424f1f74b48bdd7d3fea531cc && git submodule update --init --recursive && cd ..
+huggingface-cli download Modularcomputing/dynamic-accent-pro-v1.1 --local-dir dynamic-accent-pro
+pip install -r dynamic-accent-pro/requirements.txt
+```
+
+Fun-CosyVoice3-0.5B-2512 downloads on first run (`--cv3_dir` / `CV3_DIR` to reuse a copy). Tested on an H100 in bf16; a 16 GB GPU is enough for TTS. The optional code-switch step needs a GPU that holds Qwen3-32B in bf16 (~65 GB); `--cs_llm Qwen/Qwen3-14B` is lighter and worse.
+
+## Usage
+
+```bash
+cd dynamic-accent-pro
+# default prompt (native-like pace and pauses)
+python infer.py --cosyvoice_dir ../CosyVoice --text "Ndewo nụ, ụmụnna m. Tonight we will talk about the new market road." --out out.wav
+
+# pace
+python infer.py --cosyvoice_dir ../CosyVoice --instruct "Please speak slowly and take your time." --text "..." --out slow.wav
+python infer.py --cosyvoice_dir ../CosyVoice --instruct "Speak fast, like a quick everyday conversation." --text "..." --out fast.wav
+
+# pauses (text step + instruction)
+python infer.py --cosyvoice_dir ../CosyVoice --instruct "Speak with plenty of pauses between phrases." --text "..." --out many.wav
+python infer.py --cosyvoice_dir ../CosyVoice --instruct "Say it in one smooth flow with hardly any pauses." --text "..." --out few.wav
+
+# female Igbo voice
+python infer.py --cosyvoice_dir ../CosyVoice --voice waxal_ibo_5_female --text "Kedu ka ị mere? Abeg no vex, I go call you for evening." --out ibo_f.wav
+
+# experimental: plain text + a code-switch request -> Qwen3-32B writes the tagged text (check it!) -> TTS
+python infer.py --cosyvoice_dir ../CosyVoice --codeswitch_prompt "Nigerian Pidgin with an Igbo greeting" \
+ --text "My brother, the work is too much today, but we will finish it." --out cs.wav
+
+# A/B the same text, seed and voice with Flash and Pro -> cmp_flash.wav, cmp_pro.wav
+python infer.py --cosyvoice_dir ../CosyVoice --compare --compare_versions flash,pro --text "..." --out cmp.wav
+```
+
+| flag | what it does |
+|---|---|
+| `--instruct "..."` | `pro`: natural-language style instruction. Reliable: slow / fast; plenty of / hardly any pauses. Phrasings close to the examples above work best |
+| `--guidance G` | `pro`: classifier-free guidance strength on the instruction (default 2.0; 0 = off, weaker pace control) |
+| `--no_text_pauses` | `pro`: do not edit the text for pause instructions |
+| `--codeswitch_prompt "..."` | optional text-LLM step before synthesis (see above); output is validated (tags, length, loops, back-translation meaning check) and falls back to the input text |
+| `--cs_llm` | the LLM for that step (default `Qwen/Qwen3-32B`) |
+| `--version pro\|flash`, `--compare`, `--compare_versions` | model version / A/B rendering |
+| `--voice`, `--list_voices` | voice selection |
+| `--auto_tag`, `--tag_only`, `--force_lang`, `--lang_map` | language tagging of untagged text (see `tagger.py`) |
+| `--frontend codeswitch\|native\|accent`, `--frontend_lang`, `--no_diacritics` | text front-end |
+| `--seed N` | sampling seed (default 0). Try 2–3 seeds and keep the best take |
+| `--tail_pad N` | append N silence speech tokens before the vocoder so the last syllable is not clipped (opt-in; 6 tested) |
+
+Text: wrap each language span in ``, ``, ``, `` or ``; untagged text is read as English unless `--auto_tag` / `--force_lang` is given. Write Yoruba and Igbo with diacritics where you can. GPU generation is not bit-reproducible (bf16 near-ties).
+
+## Samples
+
+`samples/` holds MP3 renders for all five languages and a code-switched sentence, both main voices, with the default prompt and the slow / fast / few-pauses / many-pauses instructions, plus a Flash-DPO render of the same text and seed for A/B (`samples/meta.json` lists text, voice and instruction per file). `samples/codeswitch_frontend/` shows the experimental Qwen3-32B step: input text, request, the tagged text it produced, and the audio. The Igbo and Yoruba demo sentences have **not yet been checked by a native speaker**.
+
+## Results
+
+Automatic regression set: 197 held-out sentences per voice (30 each of Igbo, Yoruba, Hausa, Pidgin, English; 24 code-switched; 23 paragraphs), default prompt, seed 0. CER from automatic ASR judges (per language, same judges for every system), pace and pause rate relative to native recordings of the same languages, clipped ending = less than 0.1 s of trailing silence, SIM = speaker similarity to the prompt clip, UTMOSv2 = predicted naturalness.
+
+| voice | group | system | CER | CER no-tone | pace × native | pauses × native | clipped endings | SIM | UTMOSv2 |
+|---|---|---|---|---|---|---|---|---|---|
+| anchor_male | all | Flash-DPO | 0.162 | 0.135 | 0.99 | 0.75 | 7% | 0.784 | 3.17 |
+| anchor_male | all | **Pro v1.1** | 0.167 | 0.141 | 0.99 | 1.02 | 8% | 0.789 | 3.16 |
+| anchor_male | ibo | Flash-DPO | 0.189 | 0.158 | 1.06 | 0.40 | 7% | 0.762 | 3.06 |
+| anchor_male | ibo | **Pro v1.1** | 0.216 | 0.181 | 1.02 | 0.62 | 3% | 0.779 | 3.01 |
+| anchor_male | yor | Flash-DPO | 0.230 | 0.144 | 1.08 | 0.30 | 3% | 0.762 | 2.99 |
+| anchor_male | yor | **Pro v1.1** | 0.218 | 0.141 | 1.06 | 0.68 | 3% | 0.770 | 3.02 |
+| anchor_male | hau | Flash-DPO | 0.123 | 0.123 | 0.83 | 0.77 | 0% | 0.788 | 3.26 |
+| anchor_male | hau | **Pro v1.1** | 0.147 | 0.147 | 0.81 | 1.19 | 3% | 0.796 | 3.19 |
+| anchor_male | pcm | Flash-DPO | 0.227 | 0.227 | 0.97 | 0.72 | 10% | 0.782 | 3.26 |
+| anchor_male | pcm | **Pro v1.1** | 0.199 | 0.199 | 1.01 | 0.97 | 3% | 0.779 | 3.25 |
+| anchor_male | eng | Flash-DPO | 0.026 | 0.026 | 0.94 | 1.85 | 17% | 0.790 | 3.26 |
+| anchor_male | eng | **Pro v1.1** | 0.031 | 0.031 | 0.94 | 1.89 | 7% | 0.796 | 3.26 |
+| anchor_male | cs | Flash-DPO | 0.208 | 0.159 | 1.02 | 1.00 | 12% | 0.773 | 3.09 |
+| anchor_male | cs | **Pro v1.1** | 0.213 | 0.162 | 1.05 | 1.27 | 25% | 0.766 | 3.22 |
+| anchor_male | para | Flash-DPO | 0.131 | 0.106 | 1.06 | 1.08 | 0% | 0.843 | 3.28 |
+| anchor_male | para | **Pro v1.1** | 0.149 | 0.126 | 1.05 | 1.29 | 13% | 0.843 | 3.16 |
+| waxal_ibo_5_female | all | Flash-DPO | 0.165 | 0.134 | 1.03 | 0.95 | 11% | 0.700 | 3.51 |
+| waxal_ibo_5_female | all | **Pro v1.1** | 0.152 | 0.123 | 1.01 | 0.84 | 12% | 0.698 | 3.45 |
+| waxal_ibo_5_female | ibo | Flash-DPO | 0.215 | 0.171 | 1.09 | 0.52 | 7% | 0.697 | 3.41 |
+| waxal_ibo_5_female | ibo | **Pro v1.1** | 0.178 | 0.145 | 1.07 | 0.58 | 0% | 0.682 | 3.40 |
+| waxal_ibo_5_female | yor | Flash-DPO | 0.251 | 0.150 | 1.18 | 0.86 | 7% | 0.661 | 3.45 |
+| waxal_ibo_5_female | yor | **Pro v1.1** | 0.224 | 0.118 | 1.11 | 0.38 | 10% | 0.671 | 3.36 |
+| waxal_ibo_5_female | hau | Flash-DPO | 0.117 | 0.117 | 0.86 | 1.20 | 7% | 0.700 | 3.51 |
+| waxal_ibo_5_female | hau | **Pro v1.1** | 0.132 | 0.132 | 0.85 | 0.74 | 13% | 0.676 | 3.47 |
+| waxal_ibo_5_female | pcm | Flash-DPO | 0.184 | 0.183 | 1.02 | 0.92 | 13% | 0.674 | 3.63 |
+| waxal_ibo_5_female | pcm | **Pro v1.1** | 0.152 | 0.151 | 1.02 | 0.83 | 20% | 0.690 | 3.48 |
+| waxal_ibo_5_female | eng | Flash-DPO | 0.031 | 0.031 | 0.99 | 1.34 | 10% | 0.726 | 3.60 |
+| waxal_ibo_5_female | eng | **Pro v1.1** | 0.031 | 0.031 | 0.93 | 1.62 | 13% | 0.745 | 3.52 |
+| waxal_ibo_5_female | cs | Flash-DPO | 0.230 | 0.179 | 1.01 | 1.32 | 29% | 0.682 | 3.50 |
+| waxal_ibo_5_female | cs | **Pro v1.1** | 0.220 | 0.174 | 1.07 | 1.22 | 17% | 0.660 | 3.40 |
+| waxal_ibo_5_female | para | Flash-DPO | 0.133 | 0.106 | 1.07 | 0.99 | 4% | 0.773 | 3.44 |
+| waxal_ibo_5_female | para | **Pro v1.1** | 0.141 | 0.114 | 1.05 | 1.20 | 9% | 0.772 | 3.50 |
+
+Native-speaker reference: pace 1.00 / pauses 1.00 by definition. Summary: Pro v1.1 matches Flash-DPO on overall CER for the anchor voice (0.167 vs 0.162) and beats it for the female Igbo voice (0.152 vs 0.165); it pauses much closer to native in Igbo and Yoruba on the anchor voice (0.62× / 0.68× vs 0.40× / 0.30×); it is worse than Flash-DPO on anchor Igbo CER (0.216 vs 0.189) and on Hausa for both voices.
+
+Instruction adherence (anchor voice, 18 held-out Igbo/Yoruba/Hausa/Pidgin/English/code-switch items, CFG 2, text pause step on; "direction" = share of items moving the requested way vs the default prompt):
+
+| instruction | articulation rate × default | pause rate × default | direction correct |
+|---|---|---|---|
+| Please speak slowly and take your time. | 0.89 | 1.16 | 89% |
+| Speak fast, like a quick everyday conversation. | 1.15 | 0.87 | 94% |
+| Say it in one smooth flow with hardly any pauses. | 0.92 | 0.91 | 56% |
+| Speak with plenty of pauses between phrases. | 0.90 | 1.28 | 78% |
+| Use a calm, gentle, even tone. *(not advertised)* | 0.98 | 1.02 | 50% |
+| Sound lively and expressive. *(not advertised)* | 0.96 | 0.94 | 44% |
+
+Slow vs fast on the same item: correct order on 100% of items; many vs few pauses: 67%; lively vs calm: 50% (chance). Note that "slow" also adds pauses (1.16× pause rate). 18 items is a small set; treat these as indicative.
+
+## Limitations
+
+- **Experimental.** Pace control is real; pause control depends on the text step; calm/lively and emotion are not available.
+- **Anchor Igbo** CER is still higher than Flash-DPO (0.216 vs 0.189); **Hausa** CER is worse than Flash-DPO for both voices. Flash-DPO remains available as `--version flash`.
+- English stays over-paused relative to native English (about 1.9× native pause rate on the anchor voice, the same as Flash-DPO).
+- Clipped endings remain on code-switched sentences and paragraphs (13–25% on the anchor voice). `--tail_pad 6` (six silence tokens appended before the vocoder, inference-only) removed every measured clipped ending in testing with no consistent CER change (+0.005 overall, within seed noise); it is opt-in until it has been checked by ear.
+- The code-switch request step (Qwen3-32B) is a separate text model: weak Igbo/Yoruba beyond greetings, sometimes refuses to switch and falls back to the input text.
+- Pidgin has little training data and no reliable ASR judge; Yoruba tone quality needs native listening.
+- Female voices are zero-shot. Not evaluated for numbers, abbreviations or URLs.
+- Do not use it to impersonate real people. The voices are WAXAL Media Trust speakers, released under CC-BY-SA-4.0 for speech technology.
+
+## Training
+
+1. **Flash-DPO** (the `flash` version): CosyVoice3 LM fine-tuned on the licensed set below (language embeddings, speaker token, adversarial speaker classifier, rate embedding), then DPO on 1,206 preference pairs.
+2. **Instruction SFT** (3,000 steps): ~100.9k licensed clips labelled from the audio (articulation rate, pause rate, energy/F0 variation); each training item gets a natural-language instruction built from its labels in the CosyVoice3 system-prompt slot, plus explicit pause/energy control embeddings; 18% of items keep the default prompt, drawn from native-like clips.
+3. **DPO polish** (134 steps, β 0.1, lr 1e-6, SFT weight 0.1): 700 prompts × 4 samples from the SFT model, 564 preference pairs; reward = CER + pace and pause-rate match to native + a clipped-ending penalty + a small UTMOS guard.
+
+Inference: classifier-free guidance on the instruction (conditional = instruction + controls, unconditional = default prompt), g = 2.
+
+## What is in the repo
+
+| path | what it is | licence |
+|---|---|---|
+| `checkpoints/pro/flash_instruct/` | Pro v1.1 LM (`best.pt`, sha256 `87c3a7e9…4cab3db`), `config.json`, `spk2id.json`, DPO `args.json`, `log.jsonl` | CC-BY-SA-4.0 |
+| `checkpoints/flash/flash_dpo/` | Flash-DPO LM (`best.pt`, sha256 `f59a6fc0…7e3a307`) | CC-BY-SA-4.0 |
+| `checkpoints/flash/diacritics_byt5/` | Yoruba/Igbo diacritic restoration (fine-tune of google/byt5-small) | CC-BY-SA-4.0 |
+| `prompts/` | voice clips and transcripts (WAXAL) | CC-BY-SA-4.0 |
+| `samples/` | demo renders | CC-BY-SA-4.0 |
+| `config.json` | repo-level manifest (also lets the Hub count downloads) | Apache-2.0 |
+| `settings.json` | versions, voices, defaults | Apache-2.0 |
+| `infer.py`, `flash_lm.py`, `flash_instruct.py`, `instruct_text.py`, `pause_text.py`, `cs_frontend.py`, `tagger.py`, `frontend/`, `code/` | inference, model, instruction, text pause step, code-switch step, tagger, front-end, reference training code | Apache-2.0 |
+
+## Training data and attribution
+
+Licensed data only. The weights are trained on, and the voice prompts taken from:
+
+| dataset | licence | attribution |
+|---|---|---|
+| [WAXAL](https://huggingface.co/datasets/google/WaxalNLP), Media Trust TTS subsets (Igbo, Yoruba, Hausa, Nigerian Pidgin); all voice prompts | CC-BY-SA-4.0 | Google and Media Trust, WAXAL (arXiv:2602.02734) |
+| [Open.Bible Igbo](https://huggingface.co/datasets/AfriSpeech/open-bible-speech-african) | CC-BY-SA-4.0 | Biblica, Inc. via open.bible |
+| [NaijaS2ST](https://huggingface.co/datasets/McGill-NLP/NaijaS2ST) (Igbo) | CC-BY-4.0 | McGill-NLP (arXiv:2604.16287) |
+| [IgboAPI](https://huggingface.co/datasets/nkowaokwu/ibo-dict) | CC-BY-4.0 | Nkọwa okwu / IgboAPI contributors |
+| [IgboSynCorp](https://doi.org/10.7910/dvn/yb9fwk) (+ pseudo-transcripts) | CC0-1.0 | University of Ibadan and Afe Babalola University (Lacuna Fund) |
+| [FLEURS](https://huggingface.co/datasets/google/fleurs) | CC-BY-4.0 | Google (Conneau et al., 2022) |
+| [BibleTTS](https://masakhane-io.github.io/bibleTTS/) (Yoruba, Hausa) | CC-BY-SA-4.0 | Meyer et al. (2022) |
+| [OpenSLR SLR70](https://openslr.org/70/), [SLR86](https://openslr.org/86/) | CC-BY-SA-4.0 | Google |
+| synthetic code-switch pairs (concatenated clips from the sets above) | follows the sources | after Zhang et al. (2019) |
+| base model [Fun-CosyVoice3-0.5B-2512](https://huggingface.co/FunAudioLLM/Fun-CosyVoice3-0.5B-2512) | Apache-2.0 | FunAudioLLM / Alibaba Tongyi Lab |
+| optional [Qwen3-32B](https://huggingface.co/Qwen/Qwen3-32B) (not bundled; code-switch step only) | Apache-2.0 | Qwen team, Alibaba |
+
+DPO preference pairs are the model's own renders, scored automatically. Excluded on licence grounds: African Voices / WaZoBiaSpeech (cards ban TTS use), NaijaVoices (non-commercial), and non-commercial TTS weights.
+
+## Licence
+
+- **Model weights, voice prompts and samples** (`checkpoints/`, `prompts/`, `samples/`): **[CC-BY-SA-4.0](LICENSE)**. Commercial use is allowed; credit Modular and the datasets above; derivatives of the weights must be shared under CC-BY-SA-4.0.
+- **Code** (`*.py`, `frontend/`, `code/`, `settings.json`, `config.json`): **[Apache-2.0](LICENSE-CODE)**.
+- Fun-CosyVoice3-0.5B-2512, byt5-small and Qwen3 are Apache-2.0; their notices apply to the parts they contribute.
+
+## Citation
+
+```bibtex
+@misc{dynamicaccentpro2026,
+ title = {Dynamic Accent Pro v1.1: prompt-controlled code-switching TTS for Nigerian languages},
+ author = {Modular},
+ year = {2026},
+ url = {https://huggingface.co/Modularcomputing/dynamic-accent-pro-v1.1}
+}
+```
diff --git a/assets/dynamic_accent_banner.jpg b/assets/dynamic_accent_banner.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..bdd5926340742caccd1a16e97a9e3ba321b601a1
--- /dev/null
+++ b/assets/dynamic_accent_banner.jpg
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0b51f3df37d126969b4f4b5e6737e9d92d6e91e5db78bac0cc47bd6d16ca55be
+size 305338
diff --git a/checkpoints/flash/diacritics_byt5/added_tokens.json b/checkpoints/flash/diacritics_byt5/added_tokens.json
new file mode 100644
index 0000000000000000000000000000000000000000..93c190b5690dd55aac16723222a9909e2be0faec
--- /dev/null
+++ b/checkpoints/flash/diacritics_byt5/added_tokens.json
@@ -0,0 +1,127 @@
+{
+ "": 259,
+ "": 359,
+ "": 360,
+ "": 361,
+ "": 362,
+ "": 363,
+ "": 364,
+ "": 365,
+ "": 366,
+ "": 367,
+ "": 368,
+ "": 269,
+ "": 369,
+ "": 370,
+ "": 371,
+ "": 372,
+ "": 373,
+ "": 374,
+ "": 375,
+ "": 376,
+ "": 377,
+ "": 378,
+ "": 270,
+ "": 379,
+ "": 380,
+ "": 381,
+ "": 382,
+ "": 383,
+ "": 271,
+ "": 272,
+ "": 273,
+ "": 274,
+ "": 275,
+ "": 276,
+ "": 277,
+ "": 278,
+ "": 260,
+ "": 279,
+ "": 280,
+ "": 281,
+ "": 282,
+ "": 283,
+ "": 284,
+ "": 285,
+ "": 286,
+ "": 287,
+ "": 288,
+ "": 261,
+ "": 289,
+ "": 290,
+ "": 291,
+ "": 292,
+ "": 293,
+ "": 294,
+ "": 295,
+ "": 296,
+ "": 297,
+ "": 298,
+ "": 262,
+ "": 299,
+ "": 300,
+ "": 301,
+ "": 302,
+ "": 303,
+ "": 304,
+ "": 305,
+ "": 306,
+ "": 307,
+ "": 308,
+ "": 263,
+ "": 309,
+ "": 310,
+ "": 311,
+ "": 312,
+ "": 313,
+ "": 314,
+ "": 315,
+ "": 316,
+ "": 317,
+ "": 318,
+ "": 264,
+ "": 319,
+ "": 320,
+ "": 321,
+ "": 322,
+ "": 323,
+ "": 324,
+ "": 325,
+ "": 326,
+ "": 327,
+ "": 328,
+ "": 265,
+ "": 329,
+ "": 330,
+ "": 331,
+ "": 332,
+ "": 333,
+ "": 334,
+ "": 335,
+ "": 336,
+ "": 337,
+ "": 338,
+ "": 266,
+ "": 339,
+ "": 340,
+ "": 341,
+ "": 342,
+ "": 343,
+ "": 344,
+ "": 345,
+ "": 346,
+ "": 347,
+ "": 348,
+ "": 267,
+ "": 349,
+ "": 350,
+ "": 351,
+ "": 352,
+ "": 353,
+ "": 354,
+ "": 355,
+ "": 356,
+ "": 357,
+ "": 358,
+ "": 268
+}
diff --git a/checkpoints/flash/diacritics_byt5/config.json b/checkpoints/flash/diacritics_byt5/config.json
new file mode 100644
index 0000000000000000000000000000000000000000..ce3a77003e116c5c4c76983272e65ba799534905
--- /dev/null
+++ b/checkpoints/flash/diacritics_byt5/config.json
@@ -0,0 +1,32 @@
+{
+ "architectures": [
+ "T5ForConditionalGeneration"
+ ],
+ "classifier_dropout": 0.0,
+ "d_ff": 3584,
+ "d_kv": 64,
+ "d_model": 1472,
+ "decoder_start_token_id": 0,
+ "dense_act_fn": "gelu_new",
+ "dropout_rate": 0.1,
+ "eos_token_id": 1,
+ "feed_forward_proj": "gated-gelu",
+ "gradient_checkpointing": false,
+ "initializer_factor": 1.0,
+ "is_encoder_decoder": true,
+ "is_gated_act": true,
+ "layer_norm_epsilon": 1e-06,
+ "model_type": "t5",
+ "num_decoder_layers": 4,
+ "num_heads": 6,
+ "num_layers": 12,
+ "pad_token_id": 0,
+ "relative_attention_max_distance": 128,
+ "relative_attention_num_buckets": 32,
+ "tie_word_embeddings": false,
+ "tokenizer_class": "ByT5Tokenizer",
+ "torch_dtype": "float32",
+ "transformers_version": "4.51.3",
+ "use_cache": true,
+ "vocab_size": 384
+}
diff --git a/checkpoints/flash/diacritics_byt5/generation_config.json b/checkpoints/flash/diacritics_byt5/generation_config.json
new file mode 100644
index 0000000000000000000000000000000000000000..a685340b4034fa14db5622f76e58f3a867da4487
--- /dev/null
+++ b/checkpoints/flash/diacritics_byt5/generation_config.json
@@ -0,0 +1,7 @@
+{
+ "_from_model_config": true,
+ "decoder_start_token_id": 0,
+ "eos_token_id": 1,
+ "pad_token_id": 0,
+ "transformers_version": "4.51.3"
+}
diff --git a/checkpoints/flash/diacritics_byt5/model.safetensors b/checkpoints/flash/diacritics_byt5/model.safetensors
new file mode 100644
index 0000000000000000000000000000000000000000..e595c20bcd114d0cd84517d4bf404b523b07001d
--- /dev/null
+++ b/checkpoints/flash/diacritics_byt5/model.safetensors
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:27c2f5f06306a51af9f6107c38aebff2606d7589cd4f870a4478c7b7047f789e
+size 1198571496
diff --git a/checkpoints/flash/diacritics_byt5/special_tokens_map.json b/checkpoints/flash/diacritics_byt5/special_tokens_map.json
new file mode 100644
index 0000000000000000000000000000000000000000..04fd58b5fbf6a36fda564a656b14c137ef045689
--- /dev/null
+++ b/checkpoints/flash/diacritics_byt5/special_tokens_map.json
@@ -0,0 +1,150 @@
+{
+ "additional_special_tokens": [
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "