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.
