How to use USB AUDIO 2.0 MC board to play back multichannel Topic is solved

[baum]

Hi there,

I want to use "USB AUDIO 2.0 MC Board" as multiple loudspeakers, i.e., to use it to play back multichannel audio signal.

Now I can only use the port "OUT1/2" to play stereo signal. However, if the input is a four-channel audio signal, it is still played back by port "OUT 1/2". The third and fourth channels are played back in the "mono" mode by port "OUT 1/2". The port "OUT 3/4" is silent. My question is how to use port "OUT 3/4" to play back the third and fourth channel of the input signal?

I attached the screenshot of my board, audacity and xtimecomposer in this post. Thank you in advance.

Best regards

[ffomich]

Hi!

If you are Windows user: Open VolumeControl -> Playback devices. Select XMOS USB Audio device. Press "Configure" button. You can select audio device format (stereo, 5.1, 7.1, ...) and check all selected outputs.

Also you can get/create multichannel audiofile. Configure your media player before playback this file: for ex. in SoundForge you can route any file channel to any audio device OUT.

 

[baum]

I tried it in a windows machine. In the "Configure", there is only "stereo" option. Does anyone know where the problem is?

 

[ffomich]

xCORE USB Audio 1.0 - is UAC1 (USB Audio Class 1) device. It supports only stereo configuration.

You must download into the board UAC2 firmware. Firmware names starts with 2. For example, 2ioxx_mix8.