WKAudioRecorderPreset.narrowBandSpeech
Audio quality suitable for basic speech recording. This preset records audio with an 8 kHz sampling rate using either the LPCM 128 kbps or AAC 24 kbps format.
Declaration
case narrowBandSpeechAudio quality suitable for basic speech recording. This preset records audio with an 8 kHz sampling rate using either the LPCM 128 kbps or AAC 24 kbps format.
case narrowBandSpeech