Data Source Polar Patterns

Constants that describe options for microphone directivity.

Overview

Note that the direction of a polar pattern is relative to the orientation of the data source. For example, you can use the cardioid pattern with a back-facing data source to more clearly record sound from behind the device, or with a front-facing data source to more clearly record sound from in front of the device (such as the user’s voice).

Topics

Constants

static let polarPatternOmnidirectional: AVAudioSession.Location

A data source that’s equally sensitive to sound from any direction.

static let polarPatternCardioid: AVAudioSession.Location

A data source that’s most sensitive to sound from the direction of the data source and is nearly insensitive to sound from the opposite direction.

static let polarPatternSubcardioid: AVAudioSession.Location

A data source that’s most sensitive to sound from the direction of the data source and is less sensitive to sound from the opposite direction.