Audio Recorder is a audio record app. It can record audio by microphone. Audio Record ? You can select the audio input device, such as microphone or select no ? You can select the sampling rate “24 bit, 44100 Hz”, “32 bit, 44100 Hz”,“24 bit, 96000 Hz”, “24 bit, 96000 Hz”, “16 bit, 96000 Hz”, etc Support Retina