From: Jesse Cobra <[email protected]> Reply-To: "[email protected]" <[email protected]> Date: Sunday, November 30, 2014 at 11:05 PM To: "[email protected]" <[email protected]> Subject: Re: [beagleboard] Audio capture issue with BeagleBone Black and Audio Cape Rev B
> > Curious what happens if you try 48k sampling? I get the same results. Regards, John > On Nov 30, 2014 9:37 PM, "Dien Nguyen" <[email protected]> wrote: >> Hi John, >> >> Did you solve the issue yet, may you please share how to fix it? We also >> tried with 3.18 and the issue is still there. >> >> Thanks, >> Dustin >> >> On Mon, Dec 1, 2014 at 12:29 PM, John Syn <[email protected]> wrote: >>> >>> From: Dien Nguyen <[email protected]> >>> Reply-To: "[email protected]" <[email protected]> >>> Date: Sunday, November 30, 2014 at 7:14 PM >>> To: "[email protected]" <[email protected]> >>> Subject: [beagleboard] Audio capture issue with BeagleBone Black and Audio >>> Cape Rev B >>> >>>> >>>> Hi All, >>>> >>>> We tried the Audio Cape Rev B with BeagleBone Black. The kernel version is >>>> 3.14.17 (https://github.com/RobertCNelson/bb-kernel.git branch am33x-v3.14) >>>> >>>> We was able to play and record via the Audio Cape. If we record and play >>>> the file via the Audio Cape, it works fine. But when we move the recorded >>>> file to other machine or play it via the USB Sound Card, the speed of the >>>> recorded file seems 1.5 time slower than it really is. >>>> >>>> On the board, we recorded the audio with >>>> arecord -t raw -f S16_LE -r 44100 /tmp/1.raw >>>> >>>> Then, we playback the file with command >>>> aplay -t raw -f S16_LE -r 44100 /tmp/1.raw >>>> >>>> 1/ On x86 machine, the voice become very slow. If we change the sampling >>>> rate to 63000, it is played close to the real voice we recorded. >>>> 2/ Trying with a USB Sound Card plugged directly to the board. >>>> aplay -t raw -f S16_LE -r 44100 -D plughw:1,0 /tmp/1.raw >>>> We saw the same issue as seen on x86 machine >>>> >>>> It seems that there is something wrong with the sampling rate clock. May >>>> anyone please give some suggestions >>> I¹ve seen the same problem when recording on the BBB and then playing the >>> same file on my Ubuntu Desktop. Not sure why this happens. I¹m using >>> 3.15.10-bone8. >>> >>> Regards, >>> John >>>> >>>> Thanks >>>> -- >>>> For more options, visit http://beagleboard.org/discuss >>>> --- >>>> You received this message because you are subscribed to the Google Groups >>>> "BeagleBoard" group. >>>> To unsubscribe from this group and stop receiving emails from it, send an >>>> email to [email protected]. >>>> For more options, visit https://groups.google.com/d/optout. >>> -- >>> For more options, visit http://beagleboard.org/discuss >>> --- >>> You received this message because you are subscribed to a topic in the >>> Google Groups "BeagleBoard" group. >>> To unsubscribe from this topic, visit >>> https://groups.google.com/d/topic/beagleboard/XmMg5DjJvsk/unsubscribe. >>> To unsubscribe from this group and all its topics, send an email to >>> [email protected]. >>> For more options, visit https://groups.google.com/d/optout. >> >> >> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to the Google Groups >> "BeagleBoard" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/d/optout. > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
