Instance Property


A Boolean value that indicates whether the input gain can be set.


var isInputGainSettable: Bool { get }

Return Value

Returns true if the device allows input gain to be changed, or false otherwise.


Not all devices support variable gain, check this property before attempting to set the input gain.

See Also

Working with Audio Device Settings

var inputGain: Float

The gain applied to inputs associated with the session.

func setInputGain(Float)

Changes the input gain to the specified value.

var outputVolume: Float

The system wide output volume set by the user.

var inputLatency: TimeInterval

The latency for audio input, measured in seconds.

var outputLatency: TimeInterval

The latency for audio output, measured in seconds.

var sampleRate: Double

The current audio sample rate, in hertz.

var preferredSampleRate: Double

The preferred sample rate, in hertz.

func setPreferredSampleRate(Double)

Sets the preferred sample rate for input and output.

var ioBufferDuration: TimeInterval

The current I/O buffer duration, in seconds.

var preferredIOBufferDuration: TimeInterval

The preferred I/O buffer duration, in seconds.

func setPreferredIOBufferDuration(TimeInterval)

Sets the preferred audio I/O buffer duration, in seconds.