SSLZip (code, models, paper)

.gitattributes

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+SSLZip.[[:space:]]Simple[[:space:]]Autoencoding[[:space:]]for[[:space:]]Enhancing[[:space:]]Self-Supervised[[:space:]]Speech[[:space:]]Representations[[:space:]]in[[:space:]]Speech[[:space:]]Generation.pdf filter=lfs diff=lfs merge=lfs -text

SSLZip. Simple Autoencoding for Enhancing Self-Supervised Speech Representations in Speech Generation.pdf

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code/SSLZip.zip

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models/SSLZip-16/.gitattributes

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models/SSLZip-16/LICENSE

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+---
+
+Copyright (c) 2025 Nagoya Institute of Technology and Techno-Speech, Inc.
+
+This model was trained using the LibriSpeech ASR corpus (c) 2014 by
+Vassil Panayotov, licensed under CC BY 4.0.

models/SSLZip-16/README.md

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+---
+license: cc-by-4.0
+datasets:
+- openslr/librispeech_asr
+language:
+- en
+pipeline_tag: audio-to-audio
+---
+
+# SSLZip
+
+## Usage
+
+```py
+import onnxruntime as ort
+from transformers import HubertModel
+import torch
+
+# Load the upstream HuBERT model.
+upstream = HubertModel.from_pretrained("facebook/hubert-base-ls960")
+upstream.eval()
+
+# Load the autoencoder model.
+postprocessor = ort.InferenceSession("sslzip_16.onnx")
+node_name = postprocessor.get_inputs()[0].name
+
+# Prepare an input waveform (assuming 16kHz audio).
+x = torch.randn(1, 16000)
+
+# Extract the latent representation for downstream tasks.
+with torch.inference_mode():
+    h = upstream(x, output_hidden_states=True).hidden_states[-1]
+    z = postprocessor.run(None, {node_name: h.cpu().numpy()})[0]
+
+# Use z as you like.
+print(z.shape)
+```
+
+## License
+
+The pretrained model was developed using the LibriSpeech corpus and is distributed under the same license (CC BY 4.0).  
+Please include credit to Nagoya Institue of Technology and Techno-Speech, Inc. when using this model.
+
+## Citation
+
+```bibtex
+@InProceedings{yoshimura2025sslzip,
+  author = {Takenori Yoshimura and Shinji Takaki and Kazuhiro Nakamura and Keiichiro Oura and Takato Fujimoto and Kei Hashimoto and Yoshihiko Nankaku and Keiichi Tokuda},
+  title = {{SSLZip}: Simple autoencoding for enhancing self-supervised speech representations in speech generation},
+  booktitle = {13th ISCA Speech Synthesis Workshop (SSW 2025)},
+  pages = {xxx--xxx},
+  year = {2025},
+}
+```

models/SSLZip-16/source.txt

@@ -0,0 +1 @@
+https://huggingface.co/takenori-y/SSLZip-16

models/SSLZip-16/sslzip_16.onnx

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+oid sha256:b9e01fbe9b55a18cebf9881f0c2ae1bb9a51ffe348230cd9d55467f3f6069ee6
+size 110518954

models/SSLZip-256-CLUB/.gitattributes

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+*.bz2 filter=lfs diff=lfs merge=lfs -text
+*.ckpt filter=lfs diff=lfs merge=lfs -text
+*.ftz filter=lfs diff=lfs merge=lfs -text
+*.gz filter=lfs diff=lfs merge=lfs -text
+*.h5 filter=lfs diff=lfs merge=lfs -text
+*.joblib filter=lfs diff=lfs merge=lfs -text
+*.lfs.* filter=lfs diff=lfs merge=lfs -text
+*.mlmodel filter=lfs diff=lfs merge=lfs -text
+*.model filter=lfs diff=lfs merge=lfs -text
+*.msgpack filter=lfs diff=lfs merge=lfs -text
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+*.pth filter=lfs diff=lfs merge=lfs -text
+*.rar filter=lfs diff=lfs merge=lfs -text
+*.safetensors filter=lfs diff=lfs merge=lfs -text
+saved_model/**/* filter=lfs diff=lfs merge=lfs -text
+*.tar.* filter=lfs diff=lfs merge=lfs -text
+*.tar filter=lfs diff=lfs merge=lfs -text
+*.tflite filter=lfs diff=lfs merge=lfs -text
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+*.wasm filter=lfs diff=lfs merge=lfs -text
+*.xz 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

models/SSLZip-256-CLUB/LICENSE

@@ -0,0 +1,325 @@
+Creative Commons Attribution 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 4.0 International Public License
+
+By exercising the Licensed Rights (defined below), You accept and agree
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+Attribution 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
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+
+---
+
+Copyright (c) 2025 Nagoya Institute of Technology and Techno-Speech, Inc.
+
+This model was trained using the LibriSpeech ASR corpus (c) 2014 by
+Vassil Panayotov, licensed under CC BY 4.0.

models/SSLZip-256-CLUB/README.md

@@ -0,0 +1,54 @@
+---
+license: cc-by-4.0
+datasets:
+- openslr/librispeech_asr
+language:
+- en
+pipeline_tag: audio-to-audio
+---
+
+# SSLZip
+
+## Usage
+
+```py
+import onnxruntime as ort
+from transformers import HubertModel
+import torch
+
+# Load the upstream HuBERT model.
+upstream = HubertModel.from_pretrained("facebook/hubert-base-ls960")
+upstream.eval()
+
+# Load the autoencoder model.
+postprocessor = ort.InferenceSession("sslzip_256_club.onnx")
+node_name = postprocessor.get_inputs()[0].name
+
+# Prepare an input waveform (assuming 16kHz audio).
+x = torch.randn(1, 16000)
+
+# Extract the latent representation for downstream tasks.
+with torch.inference_mode():
+    h = upstream(x, output_hidden_states=True).hidden_states[-1]
+    z = postprocessor.run(None, {node_name: h.cpu().numpy()})[0]
+
+# Use z as you like.
+print(z.shape)
+```
+
+## License
+
+The pretrained model was developed using the LibriSpeech corpus and is distributed under the same license (CC BY 4.0).  
+Please include credit to Nagoya Institue of Technology and Techno-Speech, Inc. when using this model.
+
+## Citation
+
+```bibtex
+@InProceedings{yoshimura2025sslzip,
+  author = {Takenori Yoshimura and Shinji Takaki and Kazuhiro Nakamura and Keiichiro Oura and Takato Fujimoto and Kei Hashimoto and Yoshihiko Nankaku and Keiichi Tokuda},
+  title = {{SSLZip}: Simple autoencoding for enhancing self-supervised speech representations in speech generation},
+  booktitle = {13th ISCA Speech Synthesis Workshop (SSW 2025)},
+  pages = {xxx--xxx},
+  year = {2025},
+}
+```

models/SSLZip-256-CLUB/source.txt

@@ -0,0 +1 @@
+https://huggingface.co/takenori-y/SSLZip-256-CLUB

models/SSLZip-256-CLUB/sslzip_256_club.onnx

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+oid sha256:049ca56bfbb9b3d1e15b237f96077c32ca44a2aa54bf2cd56d2a45270e98e7cb
+size 111257199

models/SSLZip-256/.gitattributes

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+*.7z filter=lfs diff=lfs merge=lfs -text
+*.arrow filter=lfs diff=lfs merge=lfs -text
+*.bin filter=lfs diff=lfs merge=lfs -text
+*.bz2 filter=lfs diff=lfs merge=lfs -text
+*.ckpt filter=lfs diff=lfs merge=lfs -text
+*.ftz filter=lfs diff=lfs merge=lfs -text
+*.gz filter=lfs diff=lfs merge=lfs -text
+*.h5 filter=lfs diff=lfs merge=lfs -text
+*.joblib filter=lfs diff=lfs merge=lfs -text
+*.lfs.* filter=lfs diff=lfs merge=lfs -text
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+*.pth filter=lfs diff=lfs merge=lfs -text
+*.rar filter=lfs diff=lfs merge=lfs -text
+*.safetensors filter=lfs diff=lfs merge=lfs -text
+saved_model/**/* filter=lfs diff=lfs merge=lfs -text
+*.tar.* filter=lfs diff=lfs merge=lfs -text
+*.tar filter=lfs diff=lfs merge=lfs -text
+*.tflite filter=lfs diff=lfs merge=lfs -text
+*.tgz filter=lfs diff=lfs merge=lfs -text
+*.wasm filter=lfs diff=lfs merge=lfs -text
+*.xz 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

models/SSLZip-256/LICENSE

@@ -0,0 +1,325 @@
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+---
+
+Copyright (c) 2025 Nagoya Institute of Technology and Techno-Speech, Inc.
+
+This model was trained using the LibriSpeech ASR corpus (c) 2014 by
+Vassil Panayotov, licensed under CC BY 4.0.

models/SSLZip-256/README.md

@@ -0,0 +1,54 @@
+---
+license: cc-by-4.0
+datasets:
+- openslr/librispeech_asr
+language:
+- en
+pipeline_tag: audio-to-audio
+---
+
+# SSLZip
+
+## Usage
+
+```py
+import onnxruntime as ort
+from transformers import HubertModel
+import torch
+
+# Load the upstream HuBERT model.
+upstream = HubertModel.from_pretrained("facebook/hubert-base-ls960")
+upstream.eval()
+
+# Load the autoencoder model.
+postprocessor = ort.InferenceSession("sslzip_256.onnx")
+node_name = postprocessor.get_inputs()[0].name
+
+# Prepare an input waveform (assuming 16kHz audio).
+x = torch.randn(1, 16000)
+
+# Extract the latent representation for downstream tasks.
+with torch.inference_mode():
+    h = upstream(x, output_hidden_states=True).hidden_states[-1]
+    z = postprocessor.run(None, {node_name: h.cpu().numpy()})[0]
+
+# Use z as you like.
+print(z.shape)
+```
+
+## License
+
+The pretrained model was developed using the LibriSpeech corpus and is distributed under the same license (CC BY 4.0).  
+Please include credit to Nagoya Institue of Technology and Techno-Speech, Inc. when using this model.
+
+## Citation
+
+```bibtex
+@InProceedings{yoshimura2025sslzip,
+  author = {Takenori Yoshimura and Shinji Takaki and Kazuhiro Nakamura and Keiichiro Oura and Takato Fujimoto and Kei Hashimoto and Yoshihiko Nankaku and Keiichi Tokuda},
+  title = {{SSLZip}: Simple autoencoding for enhancing self-supervised speech representations in speech generation},
+  booktitle = {13th ISCA Speech Synthesis Workshop (SSW 2025)},
+  pages = {xxx--xxx},
+  year = {2025},
+}
+```

models/SSLZip-256/source.txt

@@ -0,0 +1 @@
+https://huggingface.co/takenori-y/SSLZip-256

models/SSLZip-256/sslzip_256.onnx

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c9521cf207a2026095d15a9103eb8558de04a55c42086dfd7aff8a4c112685a7
+size 111257199