Do not convert Opus audio files to WAV
As suggested by @severo, we could avoid the conversion of Opus audio files to WAV: https://github.com/huggingface/dataset-viewer/pull/2811#issuecomment-2113015400

Indeed, according to https://developer.mozilla.org/en-US/docs/Web/Media/Formats/Audio_codecs, it's a well-supported codec among browsers (see "Browser compatibility" in the Opus table).

Beware:
> Safari supports Opus in the `<audio>` element only when packaged in a CAF file, and only on macOS High Sierra (10.13) or iOS 11.

Overall:
> Opus is a good all-around audio codec for use in your web applications, and can be used for any audio tasks you have in mind.



Do not convert Opus audio files to WAV: As suggested by @severo, we could avoid the conversion of Opus audio files to WAV: https://github.com/huggingface/dataset-viewer/pull/2811#issuecomment-2113015400

Indeed, according to https://developer.mozilla.org/en-US/docs/Web/Media/Formats/Audio_codecs, it's a well-supported codec among browsers (see "Browser compatibility" in the Opus table).

Beware:
> Safari supports Opus in the `<audio>` element only when packaged in a CAF file, and only on macOS High Sierra (10.13) or iOS 11.

Overall:
> Opus is a good all-around audio codec for use in your web applications, and can be used for any audio tasks you have in mind.


