[Qt-interest] Waveform of audio tracks

[Brad Howes]

On Jul 24, 2010, at 5:37 AM, Vijay Kansal wrote:

> I want to create an audio editor,
> in which i have to create a widget that shows waveforms of audio tracks.
> For this, i think i should use Qpainter to draw lines proportional to audio amplitude.
> Problems:How to get the ampliude of my audio track.
> Secondly, on which widget shall i paste the waveform (lines produced by Qpainter object  )
> Is there any way of producing ths waveform (may be any built-in widget of QT or so)?

Nothing like learning from others. Read the source and see how it is done:

    http://audacity.sourceforge.net

Brad

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Brad Howes
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