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getPeaks() returns an empty array

See original GitHub issue

Issue Description

I’m trying to get the peak data of a WAV file so that I can cluster the silences in the audio but the getPeaks() method returns an empty array. Any help would be really appreciated.

This is what I have tried so far:

this.player.on("waveReady", (event) => {
      var length = this.player.wavesurfer().surfer.getDuration();
      var start = 0;
      var end = length;
      console.log(
        this.player.wavesurfer().surfer.backend.getPeaks(length, start, end)
      );
    });

Issue Analytics

State:
Created a year ago
Comments:6 (3 by maintainers)

Top GitHub Comments

1reaction

DManujayacommented, Sep 2, 2021

@thijstriemstra Is there any update?

0reactions

thijstriemstracommented, Nov 27, 2021

You shouldn’t check it in the waveReady event. Trying your example and pasting this in the console:

var length = player.wavesurfer().surfer.getDuration();
      var start = 0;
      var end = length;
      console.log(
        player.wavesurfer().surfer.backend.getPeaks(length, start, end)
      );

And I see the peaks data: