Encoder settings The constants that define the audio encoder settings for the audio recorder class. TopicsEncoder setting keysAVEncoderASPFrequencyKeyAVEncoderAudioQualityKeyAVEncoderBitDepthHintKeyAVEncoderBitRateKeyAVEncoderBitRatePerChannelKeyAVEncoderBitRateStrategyKeyAVEncoderContentSourceKeyAVEncoderDynamicRangeControlConfigurationKey See AlsoEncoder and processing settingsSample rate conversion settingsAVAudioQualityTime pitch algorithm settings