audioAnalyzerCHOP

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audioAnalyzerCHOP

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Audio analysis Touchdesigner CHOP using Essentia library

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## Audio Analyzer CHOP

TouchDesigner cplusplus Audio Analysis CHOP developed with Essentia library (https://essentia.upf.edu/)

![alt text](https://raw.githubusercontent.com/leozimmerman/audioAnalyzerCHOP/master/screenshot/screenshot.png)

### Available algorithms

RMS, Power, Zero Crossing Rate, Loudness, Pitch Frequency, Pitch Confidence, Dissonance, High Frequency Content, Pitch Salience, Inharmonicity, Odd-Even, Strong-Peak, Silence Rate, Energy Bands, Spectral Roll Off, Spectral Entropy, Spectral Centroid, Spectral Complexity, Spectral Flux (algorithms reference: https://essentia.upf.edu/algorithms_reference.html)

### Instructions for use

This Chop allows only one channel input. Make sure to pass buffers (num samples) that makes sense for audio processing (1024, 512, etc.).
<br>For example, if you are using TouchDesigner AudiofileIn or AudiodeviceIn and by default its length is 735 (because of the audio/frame rate syncing. 44100/60 = 735), you can use a trail with a window length of 0.02321 to get a 1024 buffer for analysis.

![alt text](https://raw.githubusercontent.com/leozimmerman/audioAnalyzerCHOP/master/screenshot/screenshotTD.png)

### Releases and compatibility

The compiled version (.plugin) is only available for Mac, you can find it in this repo as a release. <br>For Windows usage you can compile it by cloning the repo, and you'll probably have to compile **essentia** and **fftw3** libraries too for Windows

audioAnalyzerCHOP

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