How can the generated waveform be saved ?

Hello, I didn’t find a consitant documentation for saving the generated waveform data. I’ve tried wavesurfer.on('ready', function () { // the width of the waveform in double pixels var width = wavesurfer.getDuration() * wavesurfer.params.minPxPerSec * wavesurfer.params.pixelRatio; var dataJSON = wavesurfer.backend.getPeaks(width); console.log (dataJSON); });

But its empty… What is the best method to do this exportPCM ? backend.getpeaks() ?

Best P.

[X-Raym]

@the1the you can use var peaks = object.backend.getPeaks(960); … where object is your wavesurfer object. 960 means 1920 long array so it is enoufg from small to widescreen if the waveform is meant to not be zoomed.

Then, just wrap this in a AJAX request to generate your json file. You can add extra infos in it (I personally add audio length and audio URL).

[the1the]

` wavesurfer.on(‘ready’, function () { // the width of the waveform in double pixels //var width = wavesurfer.getDuration() * wavesurfer.params.minPxPerSec * wavesurfer.params.pixelRatio; var dataJSON = wavesurfer.backend.getPeaks(960); console.log (dataJSON);

        });

Returns array[0]

so what I’m I doing wrong? Any help very appriciated.`