Hi I wanna get audio with a microphone and BBB. I am new. I dont know how to work with PRU to get the audio with BBB. could you help me please?
best regards chiya On Monday, December 1, 2014 at 6:44:41 AM UTC+3:30, Dien Nguyen wrote: > > > 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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/7809bfb6-18a9-4ba4-a6cf-f07504c10c8ao%40googlegroups.com.
