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fast c program to generate the waveform image of an audio file. Also available as a node.js module
This project forked from andrewrk/waveform
fast c program to generate the waveform image of an audio file. Also available as a node.js module
Command Line Usage: waveform [options] audiofile pngfile Available options with their defaults: --width 256 width of the image --height 64 height of the image --color-bg 00000000 bg color, rrggbbaa --color-center 000000ff gradient center color, rrggbbaa --color-outer 000000ff gradient outer color, rrggbbaa Substitute '-' for a filename to use stdio. Node.js Usage: var generateWaveform = require('waveform'); generateWaveform(audiofile, pngfile, { width: 256, // width of the image height: 64, // height of the image 'color-bg': '00000000', // bg color, rrggbbaa 'color-center': '000000ff',// gradient center color, rrggbbaa 'color-outer': '000000ff', // gradient outer color, rrggbbaa }, function(err) { // done generating waveform }); PHP Usage: https://github.com/polem/WaveformGenerator Dependencies: libsox libpng zlib Compile: gcc -o waveform main.c -O3 -lsox -lz -lpng Compile on osx using macport: install depedencies: sudo port install sox sudo port install libpng sudo port install zlib run compiler: gcc -o waveform main.c -O3 -lsox -lz -lpng -I/opt/local/include -L/opt/local/lib
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