19 Oct
2012
19 Oct
'12
10:58 a.m.
Mike Looijmans wrote:
From: Prasant J pj0585@gmail.com
Prasant J wrote:
I'm writing an alsa application for recording & playing 16 channel audio.
I'm working with Beaglebone (ARM Cortex-A8 720 MHz). (Currently failures are for 8 channels 32 bit / 16 bit, but our final target is 16 channels)
I have managed to get Audio capture working fine (after certain linux optimizations) but playback is giving under-runs (only when PLAYBACK & CAPTURE run together)
You must be doing something wrong. I'm doing 32-bit, 16-channel input at 51.2kHz on a OMAP-L138 (an ARM9 CPU at 450 MHz)
Playback and capture at the same time seems to be harder for certain embedded devices. I don't know if this is a driver bug or a hardware limitation.
Regards, Clemens