Description

Audio interfaces available on the TaishanPi-3M development board:

• 3.5mm headphone jack (supports headphones and microphone)

• Onboard microphone

Downloading Corresponding Image

Use Network Disk🚀 to download the provided .img image file in the System Image/Ubuntu24/ directory.

The image used in this document is: TaishanPi-3M-RK3576_Ubuntu24-Xubuntu_AP6256-mSATA.img

Basically all images have audio interfaces enabled by default, so you don't need to specifically download a particular image.

Flashing Image to Development Board

Reference Finished Image Flashing to flash the downloaded image to the development board.

Connecting 3.5mm Headphone Jack

First, insert the 3.5mm headphone into the development board's headphone jack and start recording:

arecord -D hw:0,0 -f cd -r 44100 -c 2 -V stereo headset_stereo.wav

Start recording, then speak into the headphone's microphone. After recording is complete, press Ctrl+C to stop recording. To play the recording, use the following command:

aplay -D plughw:0,0 headset_stereo.wav

You can hear what you just said being recorded.

Using Onboard Microphone

First, remove the 3.5mm headphone and start recording:

arecord -D hw:0,0 -f cd -r 44100 -c 2 -V stereo board_stereo.wav

Speak into the onboard microphone on the board. After recording is complete, press Ctrl+C to stop recording. Then insert the 3.5mm headphone again and use the following command to play the recording:

aplay -D plughw:0,0 board_stereo.wav

You can hear the sound recorded through the onboard microphone.