Leonid PershinandClaude Opus 5
0584397884
torchaudio 2.11 routes torchaudio.save()/load() through TorchCodec and ignores the `backend` argument, so every generation died at the save step with "ImportError: TorchCodec is required for save_with_torchcodec" after the diffusion had already finished. Reference-audio loading (audio2audio, repaint, extend) and the training dataset loader hit the same wall. soundfile is already a required dependency and covers all four output formats the UI offers, so use it directly rather than pulling in TorchCodec and its native FFmpeg stack: - pipeline_ace_step.save_wav_file(): sf.write(), transposing (channels, samples) -> (samples, channels); drops the now-unused torchaudio import - MusicDCAE.load_audio() and text2music_dataset: sf.read(dtype=float32, always_2d=True), transposed back to (channels, samples) torchaudio is still used for Resample/MelScale transforms, which are unaffected. Verified end to end: 10s generation on an RTX 3060 in 9.7s, output is valid non-silent 48kHz stereo; load_audio round-trips it; wav/mp3/ogg/ flac all write and read back. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>