38 lines
No EOL
1.3 KiB
Markdown
38 lines
No EOL
1.3 KiB
Markdown
#audioInputExample
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### Learning Objectives
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This openFrameworks example is designed to demonstrate how to access, extract, and draw from your audio input's raw data.
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Studying the code behind this example will help you understand:
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* How to list all available audio devices with `soundStream.printDeviceList()` and set a specific audio input device for OF app with `settings.setInDevice(devices[0])`
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* How audio functions work independent from draw and update loop by observe `bufferCounter` and `drawCounter`
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* How to roughly calculate volume by using RMS (root mean square) value in `void audioIn`
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* How to record data overtime with vector with `vector <float> volHistory`
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### Expected Behavior
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When launching this app, you should see
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* Fast moving curve lines on the left, and big circle on the right that reacts to live audio input
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* Graph of recorded volume data overtime under the big circle
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* Text that shows difference in draw vs buffer counter
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Instructions for use:
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* make some noise or touch your microphone to see how sound manipulate the drawing.
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* press `e` to stop live audio input, `s` to continue
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### Classes used in this example
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This example uses the following classes:
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* ``ofSoundStream``
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* ``ofSoundStreamSettings`` |