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audiowaveform
=============
![](https://badge.imagelayers.io/vimagick/audiowaveform:latest.svg)
**audiowaveform** is a C++ command-line application that generates waveform data
from either MP3, WAV, or FLAC format audio files. Waveform data can be used to
produce a visual rendering of the audio, similar in appearance to audio editing
applications.
### Run
$ docker pull vimagick/audiowaveform
$ alias awf='docker run --rm -v `pwd`:/work -w /work vimagick/audiowaveform'
$ awf -i input.mp3 -o output.png
## Command line options
**audiowaveform** accepts the following command-line options:
| Short | Long | Description |
| --------------- | ------------------------------ | ------------------------------------------------------------------------------------------------------------- |
| | `--help` | Show help message |
| `-v` | `--version` | Show version information |
| `-i <filename>` | `--input-filename <filename>` | Input mono or stereo audio (.wav or .mp3) or waveform data (.dat) file name |
| `-o <filename>` | `--output-filename <filename>` | Output waveform data (.dat or .json), audio (.wav), or PNG image (.png) file name |
| `-z <level>` | `--zoom <zoom>` | Zoom level (samples per pixel), default: 256. Not valid if `--end` or `--pixels-per-second` is also specified |
| | `--pixels-per-second <zoom>` | Zoom level (pixels per second), default: 100. Not valid if `--end` or `--zoom` is also specified |
| `-b <bits>` | `--bits <bits>` | Number of bits resolution when creating a waveform data file (either 8 or 16), default: 16 |
| `-s <seconds>` | `--start <seconds>` | Start time (seconds), default: 0 |
| `-e <seconds>` | `--end <seconds>` | End time (seconds). Not valid if `--zoom` is also specified |
| `-w <width>` | `--width <width>` | Width of output image (pixels), default: 800 |
| `-h <height>` | `--height <height>` | Height of output image (pixels), default: 250 |
| `-c <scheme>` | `--colors <scheme>` | Color scheme of output image (either 'audition' or 'audacity'), default: audacity |
| | `--border-color <color>` | Border color (in rrggbb\[aa\] hex format), default: set by `--colors` option |
| | `--background-color <color>` | Background color (in rrggbb\[aa\] hex format), default: set by `--colors` option |
| | `--waveform-color <color>` | Waveform color (in rrggbb\[aa\] hex format), default: set by `--colors` option |
| | `--axis-label-color <color>` | Axis label color (in rrggbb\[aa\] hex format), default: set by `--colors` option |
| | `--no-axis-labels` | Render PNG images without axis labels |
| | `--with-axis-labels` | Render PNG images with axis labels (default) |