Hey
21488716, these edits are great! As others have noted though, PCM is a really heavy format that doesn't make sense to use on this type of content (why pair FLAC-quality audio with MP4s?) and frequently leads to errors in playback. I'd highly recommend compressing the audio tracks into Opus 192kbps (similar in quality to 320kbps MP3, i.e. the max quality that Bluetooth supports outside of proprietary Apple/Sony codecs).
I remember messing around with TTS models and noticed that they usually only offer MP3/WAV options so completely understand that it's an annoying additional step to go through (I personally like
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for quick, drag and drop re-encodes of WAVs).