how to get spectrum data's without playing an audio file?

[victorvictor]

Hello

I would like to use the spectrum element to get the spectrum data of an
audio file without playing it. For example, I would like to get the spectrum
data's of every second of a  'flac' file, but as fast as possible, not by
waiting that the piece is completely played to the end.

Please how could I do that?

Victor

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