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