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FFT on the App Store
https://apps.apple.com/us/app/fft/id298840058
Description. FFT is a high-resolution audio analysis tool for the iPhone and iPod touch. It uses the Fast Fourier Transform to analyze incoming audio, and displays a very detailed graph of amplitude vs. frequency. Use this app with the built-in iOS device microphone, or upgrade to our iAudioInterface2 or iTestMic for a complete professional solution.
ios - FFT output with float buffer AudioUnit - Stack Overflow
https://stackoverflow.com/questions/12642916/fft-output-with-float-buffer-audiounit
This will give you results similar to those you'd see in a standard FFT bar graph music visualizer thing. Do this after the FFT: vDSP_zvmags(&_complex, 1, &_complex.realp, 1, _fftsize); After that, _complex.realp will be an array of float values representing the magnitude of …
The Audio Unit - Apple Developer
https://developer.apple.com/library/archive/documentation/MusicAudio/Conceptual/AudioUnitProgrammingGuide/TheAudioUnit/TheAudioUnit.html
You define factory presets by overriding GetPresets, and an audio unit’s view calls this method to populate the view’s factory presets menu. When a user chooses a factory preset, the view calls the audio unit’s NewFactoryPresetSet method. You define this method in parallel with the GetPresets method.
Audio Unit - Apple Developer
https://developer.apple.com/documentation/audiounit
Overview. The Audio Unit framework provides interfaces for hosting either version 2 or version 3 audio units and implementing version 3 audio processing plug-ins known as Audio Unit extensions. Developers implementing version 3 audio units should subclass the AUAudioUnit class. Version 3 Audio Unit extensions can be used on iOS, tvOS, and macOS by host apps and …
FFT | Studio Six Digital
https://studiosixdigital.com/audiotools-modules-2/acoustic-analysis-modules/fft/
FFT is a high-resolution audio analysis tool available as an in-app purchase in AudioTools. It uses the Fast Fourier Transform (see below) to analyze incoming audio, and displays a very detailed graph of amplitude vs. frequency. NOTE: This information applies to the FFT module available within AudioTools. The standalone app is older, and does not include every feature mentioned …
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