AudioVisualRecorder
Quick example project / work in progress, that
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records video and audio, and displays average volume in real-time on sliders for both a linear and log scale (CapturePreview, AudioVideoCapture)
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provides a view to playback movie while drawing a summary of audio levels (PlayerViewController, PlayerView)
For AVFoundation code, references Apple's Developer site on AVFoundation and sample projects -
https://developer.apple.com/library/mac/documentation/AudioVideo/Conceptual/AVFoundationPG/Articles/04_MediaCapture.html https://developer.apple.com/library/ios/samplecode/AVCam/Introduction/Intro.html https://developer.apple.com/library/mac/samplecode/AVRecorder/Introduction/Intro.html