Encoder settings The constants that define the audio encoder settings for the audio recorder class. TopicsSettingsAVEncoderAudioQualityKeyAVEncoderBitRateKeyAVEncoderBitRatePerChannelKeyAVEncoderBitRateStrategyKeyAVEncoderBitDepthHintKey See AlsoSettingsSample rate conversion settingsAVAudioQualityTime pitch algorithm settings