Hello, The clock is wrong. For some reason the clock clock rate is not changed to 12MHz as set in dts file but to 24MHz (ti,codec-clock-rate = <12000000>;). If you change the clock to 24MHz in your dts, it will work as expected.
Regards, Nicolae Rosia. On Mon, Dec 1, 2014 at 4:42 PM, Dien Nguyen <[email protected]> wrote: > Hi Jesse, > > Tried out with 48KHz, same issue occurred. Have you recorded and played > successfully with any kernel version? > > Thanks, > Dustin > > On Mon, Dec 1, 2014 at 2:05 PM, Jesse Cobra <[email protected]> wrote: >> >> Curious what happens if you try 48k sampling? >> >> 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 >>>> >>>> I’ve seen the same problem when recording on the BBB and then playing >>>> the same file on my Ubuntu Desktop. Not sure why this happens. I’m 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 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.
