Impossible to record/capture from the MEMS microphones

[davidier2]

Posted on April 16, 2015 at 10:36

Hi,

I've bought ''steval-mki126v1'' and ''steval-mki138v1'' evaluation boards (and ''Microphone Coupon Board steval-mki129v1'') .

My goal is only to RECORD the signals coming to each microphone/channel (produce a WAV files).

1) When I use APWorkbench on ''steval-mki138v1'', try to record (pressing on ''start''), the next pop-up message shows: mmioOpen:- 2147467259, prevent me to produce the WAV files.

2) Using APWorkbench on ''steval-mki129v1'' (via steval-mki138v1 and USB connector), don't give option to capture/record any channel to audio file, how can I get those data?

Thanks a lot

David

[davidier2]

Posted on April 19, 2015 at 10:20

someone?

does this forum Active??

[Marco VENERI]

Posted on April 20, 2015 at 17:38

Hi David,

The APWorkbench allows to record live streams from the MEMS microphones mounted on the STAudioHub interface - through the ''USB Digital Voice Recorder'' panel. Is it this one that you're selecting in your below case-1 and producing the mmioOpen error?

Marco

[davidier2]

Posted on April 27, 2015 at 13:41

Dear Marco,

I've tried to explain clearly our team problems,

Please see the attached file,

Thanks!

David

________________

Attachments :

ST_Problems.docx : https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006Ht1j&d=%2Fa%2F0X0000000aIy%2FUpkwbnHfZq62vDW7NO3dHi1yNsk8OAw2MRfXw.JfOAQ&asPdf=false

[fatihsenkul]

Posted on October 28, 2016 at 11:08

Hi,

I also have the same issue as David. In addition, when i try to play the sound that is recorded, although it plays it on screen visually, it does not give any sound output. Is there a solution to this?

Kind regards,

Fatih