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testaudiowaveform's Introduction

testaudiowaveform

TestAudioWaveform is a test application for generating a waveform image from a particular audio file

How to build

  1. mkdir ../build
  2. cd ../build
  3. cmake ../testaudiowaveform
  4. make -j2
  5. wget https://ia600402.us.archive.org/29/items/MLKDream/MLKDream_64kb.mp3
  6. ./TestAudioWaveform
  7. Check the result in 'result.png'

What need to be done

  1. We need a waveform like described in http://manual.audacityteam.org/man/audacity_waveform.html
  2. That is peaks + RMS
  3. The waveform is generated in KisWaveformGenertor on any state change and cache in an internal structure. The result is returned by fetchWaveformImage() call.
  4. KisWaveformGenerator handles any kind of wave data format, like int, float and etc.
  5. The waveform is normalized by the maximum value of the provided waveform

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