AVAudioEnvironmentDistanceAttenuationParametersMBS.distanceAttenuationModel as Integer

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
property	AVFoundationNode	MBS AVFoundation Plugin	15.3	✅ Yes	❌ No	❌ No	✅ Yes	All

The distance attenuation model describing the drop-off in gain as the source moves away from the listener.

The default value is the AVAudioEnvironmentDistanceAttenuationModelInverse attenuation model.
(Read and Write property)

AVAudioEnvironmentDistanceAttenuationParametersMBS.Handle as Integer

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
property	AVFoundationNode	MBS AVFoundation Plugin	15.3	✅ Yes	❌ No	❌ No	✅ Yes	All

The internal object reference.

(Read and Write property)

AVAudioEnvironmentDistanceAttenuationParametersMBS.maximumDistance as Double

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
property	AVFoundationNode	MBS AVFoundation Plugin	15.3	✅ Yes	❌ No	❌ No	✅ Yes	All

The distance, in meters, beyond which no further attenuation is applied.

The default value is 100000.0 meters.
This property is relevant for the AVAudioEnvironmentDistanceAttenuationModelInverse attenuation model.
(Read and Write property)

AVAudioEnvironmentDistanceAttenuationParametersMBS.referenceDistance as Double

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
property	AVFoundationNode	MBS AVFoundation Plugin	15.3	✅ Yes	❌ No	❌ No	✅ Yes	All

The minimum distance, in meters, at which attenuation is applied.

The default value is 1.0 meter.

This property is relevant for the AVAudioEnvironmentDistanceAttenuationModelInverse and AVAudioEnvironmentDistanceAttenuationModelLinear attenuation models.
(Read and Write property)

AVAudioEnvironmentDistanceAttenuationParametersMBS.rolloffFactor as Double

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
property	AVFoundationNode	MBS AVFoundation Plugin	15.3	✅ Yes	❌ No	❌ No	✅ Yes	All

Determines the attenuation curve.

A higher value results in a steeper attenuation curve. The default value is 1.0. The value must be greater than 0.0.

This property is relevant for the AVAudioEnvironmentDistanceAttenuationModelExponential, AVAudioEnvironmentDistanceAttenuationModelInverse, and AVAudioEnvironmentDistanceAttenuationModelLinear attenuation models.
(Read and Write property)