libsndfile (soundfile) for mp3 not float32 but float64

Is your feature request related to a problem? Please describe. Audio out from libsndfile (soundfile) for mp3 not float32 but float64. Because of this, if we do not force the dtype=float64 , we get an empty array

Describe the solution you’d like Maybe it makes sense to add a check for mp3 and change the dtype for the soundfile to float64 in this case? In file https://github.com/librosa/librosa/blob/main/librosa/core/audio.py

Additional context

 if isinstance(path, tuple(audioread.available_backends())):
        # Force the audioread loader if we have a reader object already
        y, sr_native = __audioread_load(path, offset, duration, dtype)
    else:
        # Otherwise try soundfile first, and then fall back if necessary
        try:
            y, sr_native = __soundfile_load(path, offset, duration, dtype) <----------------- here also make check fro mp3 type

[bmcfee]

Thanks for confirming. I’ll close this out, as it’s an upstream issue.

[bmcfee]

@magicse as stated above, I don’t think this is our bug to fix (if it is a bug). I would suggest to try reading from soundfile directly with the specified dtype. I expect you’ll find the same behavior.

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