| --- |
| license: mit |
| language: |
| - en |
| - es |
| - fr |
| - hi |
| - it |
| - pt |
| - ja |
| - zh |
| tags: |
| - spacr |
| - microscopy |
| - tutorial |
| - narration |
| - text-to-speech |
| pretty_name: spaCR tutorial narration and 4K lesson video |
| --- |
| |
| # spaCR tutorial media |
|
|
| Narration and 4K video for the [spaCR](https://github.com/EinarOlafsson/spacr) |
| interactive tutorial library, served directly to |
| <https://einarolafsson.github.io/spacr/tutorials/>. |
|
|
| spaCR is a toolkit for microscopy and single-cell analysis of pooled CRISPR |
| screens. This repository holds the media its 40-lesson tutorial player streams; |
| it is not a training dataset. |
|
|
| ## Why it lives here |
|
|
| GitHub Pages caps a published site at 1 GB. The full narration set is 2,662 MiB |
| across 54 voices, so the site could only ever publish **one voice per language** |
| — 27 of the 28 English voices were unreachable. Hosting the audio here removes |
| the cap rather than rationing it, and leaves room for the 4K video too. |
|
|
| ## Layout |
|
|
| Paths mirror the tutorial player's own, so a single base URL resolves both: |
|
|
| ``` |
| <lesson_id>/audio/<language>/<voice>.m4a narration |
| <lesson_id>/audio/<language>/<voice>.json word timings for captions and sync |
| <lesson_id>/video/<lesson_id>_silent.mp4 4K silent master (3840x2160) |
| ``` |
|
|
| For example: |
|
|
| ``` |
| 07_mask/audio/en/af_heart.m4a |
| 07_mask/audio/ja/jf_alpha.m4a |
| 07_mask/video/07_mask_silent.mp4 |
| ``` |
|
|
| ## Contents |
|
|
| | | | |
| |---|---| |
| | Lessons | 40 | |
| | Narrated languages | 8 (en, es, fr, hi, it, pt-BR, ja, zh-CN) | |
| | Voices | 54 | |
| | Narration files | 2,160 (~2,662 MiB) | |
| | 4K silent masters | 40 (~681 MiB) | |
|
|
| ## How the player uses it |
|
|
| The video carries **no audio track**. The player plays a silent master and |
| overlays whichever narration voice the visitor picks, mapping the two timelines |
| onto each other so any voice fits any lesson. The site offers 1440p by default |
| and the 4K cut from here as a quality option; both are the same cut on the same |
| timeline, so switching quality does not interrupt narration. |
|
|
| Narration was rendered with [Kokoro-82M](https://huggingface.co/hexgrad/Kokoro-82M). |
|
|
| ## Author |
|
|
| Einar Birnir Ólafsson — [ORCID 0000-0002-3388-061X](https://orcid.org/0000-0002-3388-061X) |
| Uppsala University & University of Michigan–Ann Arbor |
|
|
| * spaCR source: <https://github.com/EinarOlafsson/spacr> |
| * Documentation: <https://einarolafsson.github.io/spacr/> |
| * Tutorials: <https://einarolafsson.github.io/spacr/tutorials/> |
| * Package: <https://pypi.org/project/spacr/> |
|
|
| ## Citing |
|
|
| If spaCR contributes to your research, cite the software via its |
| [CITATION.cff](https://github.com/EinarOlafsson/spacr/blob/main/CITATION.cff). |
|
|
| ## Licence |
|
|
| MIT, matching spaCR itself. |
|
|
