Method of using commands to test recording

1) There is an onboard MIC on the development board, the location is as follows：



2) Running the test_record.sh main command will record a piece of audio through the onboard MIC, and then play it to HDMI and headphones

orangepi@orangepi:~$ test_record.sh main Start recording: /tmp/test.wav Recording WAVE '/tmp/test.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo Start playing Playing WAVE '/tmp/test.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo Playing WAVE '/tmp/test.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo

3) In addition to the onboard MIC, we can also record audio through headphones with MIC function. After inserting the headset with MIC function into the development board, run the test_record.sh headset command to record a piece of audio through the headset, and then play it to HDMI and the headset.

orangepi@orangepi:~$ test_record.sh headset Start recording: /tmp/test.wav Recording WAVE '/tmp/test.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo Start playing Playing WAVE '/tmp/test.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo Playing WAVE '/tmp/test.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo