Instance Method

setPreferredInputNumberOfChannels(_:)

Sets the preferred number of input channels for the current route.

Declaration

func setPreferredInputNumberOfChannels(_ count: Int) throws

Parameters

count

The number of input channels you want to use.

Return Value

true if a request was successfully made, otherwise false.

Discussion

This method requests a change to the number of input channels. To determine whether the change has taken effect, query or key-value observe the inputNumberOfChannels property.

Requesting input channels less than one or greater than that returned by the maximumInputNumberOfChannels results in an error.

Set the preferred number of input channels only after setting the audio session’s category and mode, and activating the session.

See Also

Working with Audio Channels

var inputNumberOfChannels: Int

The number of audio input channels for the current route.

var maximumInputNumberOfChannels: Int

The maximum number of input channels available for the current audio route.

var preferredInputNumberOfChannels: Int

The preferred number of input channels for the current route.

var outputNumberOfChannels: Int

The number of audio output channels.

var maximumOutputNumberOfChannels: Int

The maximum number of output channels available for the current audio route.

var preferredOutputNumberOfChannels: Int

The preferred number of output channels for the current route.

func setPreferredOutputNumberOfChannels(Int)

Sets the preferred number of output channels for the current route.