Some time ago I mentioned the Novocaine library providing low-latency audio recording, and playback, and a component allowing you to record and visual microphone audio.
Here’s a library providing a number of components for visualizing, playing and recording audio withi high-performance and low-latency called EZAudio from Syed Haris Ali.
EZAudio is built on top the Audio Units API for the best possible performance for playback and recording, and the visualization components utilize Core Graphics or OpenGL.
Here is a set of images from the readme showing visualizations created using the example apps:
You can find EZAudio on Github here.
A nice library for high performance audio playback and visualization.
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