AVAudioSession.StereoOrientation.none The audio session isn’t configured for stereo recording. Declarationcase none See AlsoStereo OrientationsAVAudioSession.StereoOrientation.portraitAVAudioSession.StereoOrientation.portraitUpsideDownAVAudioSession.StereoOrientation.landscapeRightAVAudioSession.StereoOrientation.landscapeLeft