Reformat audio in the browser #18
Description
HTML5 audio player has problems with large audio files. This causes delayed playback and syncing problems with the text.
The following was found to help with playback without compromising quality:
- Use a lossy file format (like mp3)
- Reduce bitrate and sample rates to 16k
- Reformat to a constant bitrate
- Convert to mono
It would be better to do all of this in the browser once a user uploads audio, e.g., using https://github.com/Kagami/ffmpeg.js