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 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
