usb audio mic send data

RE: usb audio mic send data

ovrebekk — Tue, 26 Jul 2022 12:11:24 GMT

Thanks for the update. Then I will consider this case resolved 🙂

Best regards
Torbjørn

RE: usb audio mic send data

Judge — Tue, 26 Jul 2022 11:15:54 GMT

Hi Torbjørn,

Thank you for your advice. I don't have a better way. I just use the method you mentioned before. I will try my best to use NCS in future new projects.

Thanks.

RE: usb audio mic send data

ovrebekk — Tue, 26 Jul 2022 11:10:47 GMT

Hi again

The USB developer didn't have any more input on this unfortunately. Were you able to find a workaround?

For future projects I would recommend having a look at the nRF Connect SDK rather than then nRF5 SDK. The nRF5 SDK is more or less deprecated at this point, and any new features or improvements will be added to the nRF Connect SDK.

Best regards
Torbjørn

RE: usb audio mic send data

ovrebekk — Tue, 28 Jun 2022 10:47:41 GMT

I tested the sample myself and came to the same conclusion. It doesn't seem like any event is forwarded to the application when recording is enabled on the host side, the only difference is whether or not you receive the INVALID_STATE error (8) when trying to send microphone data.

I will check with the USB developer if he has some input on this, but possibly this was an oversight on the driver side.

A possible workaround is to attempt to send microphone data at regular intervals using an app_timer callback, and open up for continuous transmission once you don't get the INVALID_STATE error.

Best regards
Torbjørn