31 lines
947 B
Markdown
31 lines
947 B
Markdown
# spectralyze
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A commandline tool for fourier transforming audio files
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## Usage
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```
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spectralyze file1 [file2...]
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```
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## Supported Formats
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* WAV
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* AIFF
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## What does it do
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Spectralyze reads one or more audio files from the standard arguments and creates JSON files containing the spectrum of the file.
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Each audio channel in the file is transformed separately. The resulting JSON has the following structure
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```
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{
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"channel_1": [
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{"freq": 0.0, "mag": 1.0"},
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{"freq": 0.1, "mag": 1.1"},
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...
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],
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"channel_2": ...
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}
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```
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Every supplied audio file will result in one JSON file. The magnitude is the absolute value of the real and imaginary part of the Fourier transformation.
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## Used libraries
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* [AudioFile](https://github.com/adamstark/AudioFile) for loading audio files
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* [JSON for Modern C++](https://github.com/nlohmann/json) for writing JSON data
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* [cxxopts](https://github.com/jarro2783/cxxopts) for parsing commandline arguments |