Alsa is only supposed to work with One application at a Time.

Am 29.04.2014 um 17:15 schrieb David Welch <nicederangement@gmail.com>:

Hi all,
I am currently working on an embedded device made up of some hardware, Arduino, Beaglebone running Debian white with audio cape. I am attaching a pd file that works on a laptop. For the beaglebone, basically I change the serial port argument to "4" for [comport] but get a "Broken Pipe" error

ALSA input error (restart failed): Broken pipe
restarting input device from state 2
ALSA output error (restart failed): Broken pipe

But ALSA seems to be working okay as long as only 1  application tries to use it. I followed most of the directions here to get it working (http://www.csounds.com/journal/issue18/beagle_pi.html and http://puredata.info/docs/embedded/bbb/) I installed pd-extended by adding the repository to /etc/apt/sources.list with directions from here (http://puredata.info/docs/faq/debian). I know sound is okay: speaker-test works ok. pd-extended works including sound, at least for a simple patch (also attached).  Jack is not installed (doesn't seem necessary for single headless instance of pd-extended).

Hmm...any help would be greatly appreciated!

David Welch

<musicalquilt_28Apr14.pd>

<simple_PD_test.pd>

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