On Thu, 7 May 2009 14:08:14 +0300 Peter Ujfalusi peter.ujfalusi@nokia.com wrote:
I need to revisit this... After more testing and debugging, it seams that I can not confirm the existence of the "tuck" (with the latest twl4030 codec code). As soon as I receive my Beagle board I will test it again (can anyone test this with latest ASoC code on Beagle?)...
I can hear somewhat audible (stetson guessed -20 db from /dev/urandom level) power-up/-down pop with "aplay -f dat /dev/zero" but no any other beeps or noises.
I cannot hear any difference in pop level am I using head of linux-omap or when merging sound-2.6/asoc on top of it.
Of cource this pop noise can be codec output & load dependent and also possible on-board amplifier with proper power sequencing can mask the noise. For reference, output jack of the Beagle is connected directly into HSOL and HSOR pins.