RuntimeError: Couldn't find appropriate backend to handle uri

❯ python3 -m demucs -d mps --two-stems=vocals ~/Desktop/03\ -\ 3OH\!3\ -\ Dont\ Trust\ Me.mp3
Important: the default model was recently changed to `htdemucs` the latest Hybrid Transformer Demucs model. In some cases, this model can actually perform worse than previous models. To get back the old default model use `-n mdx_extra_q`.
Selected model is a bag of 1 models. You will see that many progress bars per track.
Separated tracks will be stored in /Users/silman/repo/karaoke-gen/separated/htdemucs
Separating track /Users/silman/Desktop/03 - 3OH!3 - Dont Trust Me.mp3
100%|██████████████████████████████████████████████| 193.04999999999998/193.04999999999998 [00:09<00:00, 19.45seconds/s]
Traceback (most recent call last):
  File "<frozen runpy>", line 198, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
  File "/Users/silman/.local/lib/python3.11/site-packages/demucs/__main__.py", line 10, in <module>
    main()
  File "/Users/silman/.local/lib/python3.11/site-packages/demucs/separate.py", line 206, in main
    save_audio(sources.pop(model.sources.index(args.stem)), str(stem), **kwargs)
  File "/Users/silman/.local/lib/python3.11/site-packages/demucs/audio.py", line 260, in save_audio
    ta.save(str(path), wav, sample_rate=samplerate,
  File "/Users/silman/.local/lib/python3.11/site-packages/torchaudio/_backend/utils.py", line 287, in save
    backend = dispatcher(uri, format, backend)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/silman/.local/lib/python3.11/site-packages/torchaudio/_backend/utils.py", line 220, in dispatcher
    raise RuntimeError(f"Couldn't find appropriate backend to handle uri {uri} and format {format}.")
RuntimeError: Couldn't find appropriate backend to handle uri separated/htdemucs/03 - 3OH!3 - Dont Trust Me/vocals.wav and format None.

❯ python -V
Python 3.11.5

torch                         2.1.0
torchaudio                    2.1.0


❯ which ffmpeg
/opt/homebrew/bin/ffmpeg

❯ ffmpeg -version
ffmpeg version 6.0 Copyright (c) 2000-2023 the FFmpeg developers
built with Apple clang version 14.0.3 (clang-1403.0.22.14.1)
configuration: --prefix=/opt/homebrew/Cellar/ffmpeg/6.0_1 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libaribb24 --enable-libbluray --enable-libdav1d --enable-libjxl --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libsvtav1 --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox --enable-audiotoolbox --enable-neon

❯ which sox
/opt/homebrew/bin/sox

❯ sox --version
sox:      SoX v