nrf5340 usb device for audio

[huma]

I have found that nrf5340 support the usb device function. It can be used for sound card which can receive the audio signal from the PC, and output the mic signal to PC.

And I have tested that function from the nrf5340_audio application.

My question is if we made a USB Docking, if i plug my device which uesd nrf5340 to the docking, can output music(for example, the i2s input to the nrf5340) to the docking which can convert it to analog signal so people can hear them through the wired headset.

Because i thought that first, may be the Docking shoud support the USB HOST function, and the second question is we need the nrf5340 to output the audio signal through the USB prot, not only the MIC signal, I don not know if there some limtations in that.

Thank you very much for helping.

[ace.johnny]

Unfortunately, I'm still extremely novice with Zephyr and nRF Connect, and don't yet know how to configure the USB peripheral at all. I've been following this thread hoping to learn from any progress you've made.

My initial rabbit hole of study has been the CS47L63 DSP codec on the Audio DK, and I'm beginning to understand that well enough to authoritatively answer questions, but I can't help much with anything else.

One of my future goals is to transceive 7.1 channel surround sound via I2S, but so far I've just barely learned to transmit one. Please post anything helpful you discover in your endeavors.

[huma]

hello.

OK, if i find something useful, i will.

[huma]

Hello,

Please note that when you're using windows, your USB descriptor will be cached. If you adjust parts of your usb descriptor after initial enumeration, windows will still load the first one.

That is the reason why my PC can not  recognize, when i had changed the pid and vid, it worked.