Thingy 52 microphone

RE: Thingy 52 microphone

Carl Richard — Wed, 07 Apr 2021 09:14:41 GMT

Hi again, Miguel!

I got back from one of the developers that ADPCM encoded recordings require some care with regards to framing. It's typically encapsulated into blocks of x milliseconds of audio and a header with encoder state attached. The C++ ADPCMDecoder you're using may expect a certain framing or header format that's different from the one provided by the Thingy:52. Hence, I suggest that you make sure to match the header format that the decoder expects with the one from the Thingy.

Good luck and best regards,
Carl Richard

RE: Thingy 52 microphone

Miguel Carvalhosa — Wed, 31 Mar 2021 10:36:44 GMT

Hi!

Thank you for the suggestion. If you could do that, I would really appreciate it!

Best regards,

Miguel

RE: Thingy 52 microphone

Carl Richard — Wed, 31 Mar 2021 09:40:35 GMT

Hi, Miguel!

I can ask around internally to see if anyone at Nordic has experience with this. In the meantime I suggest checking out some of the source code for the Thingy:52 user applications, like the android app, to see how microphone data is handled there. You can find the source code on GitHub.

Best regards,
Carl Richard