Instance Property


The audio engine’s singleton input audio node.


@property(readonly, nonatomic) AVAudioInputNode *inputNode;


The audio engine creates a singleton on demand when inputNode is first accessed. To receive input, connect another audio node from the output of the input audio node, or create a recording tap on it.

The AVAudioSesssion instance and/or the availability of hardware features determine whether an app can perform input. Check the input format of input node (specifically, the hardware format) for a non-zero sample rate and channel count to see if input is enabled.

See Also

Getting the Input, Output, and Main Mixer Nodes


The audio engine’s singleton output audio node.


The audio engine’s optional singleton main mixer node.