support opus files
https://huggingface.co/datasets/polinaeterna/ml_spoken_words

```
Message:       Decoding .opus files requires 'libsndfile'>=1.0.30, it can be installed via conda: `conda install -c conda-forge libsndfile>=1.0.30`
```

The current version of libsndfile on Ubuntu stable (20.04) is 1.0.28, and we need version 1.0.30.

Various ways to get it:
- build it
- add a repo to a further version of ubuntu, and use apt pinning to install it
- wait for https://releases.ubuntu.com/jammy/ and upgrade the whole OS to the next stable release


support opus files: https://huggingface.co/datasets/polinaeterna/ml_spoken_words

```
Message:       Decoding .opus files requires 'libsndfile'>=1.0.30, it can be installed via conda: `conda install -c conda-forge libsndfile>=1.0.30`
```

The current version of libsndfile on Ubuntu stable (20.04) is 1.0.28, and we need version 1.0.30.

Various ways to get it:
- build it
- add a repo to a further version of ubuntu, and use apt pinning to install it
- wait for https://releases.ubuntu.com/jammy/ and upgrade the whole OS to the next stable release

