I'm trying to get ALSA audio going on an OMAP3430-based board, and I've configured using CONFIG_SND_OMAP_3430SDP_COMP=m which builds sound/arm/omap/omap2-audio-twl4030.ko module that I load/unload as part of my debug cycle.
When I play a sound though, the results are *really* distorted with lots of pulse noise showing up in both channels. Using audacity I created an empty file (i.e. silence), and the output contains pulse noise in both channels, Much mnore on the left than right channel. To look deeper, I created a sawtooth waveform and used that instead of the tone[] array in omap2-audio-twl4030.c, and the result looks good on the left channel, but the right is essentially silent, but contains pulse noise whos amplitude looks to be porportional with the sawtooth, but only in the 2nd half of the sawtooth (when the data is > 0x8000). Also, there's a lot of initial DC bias in the output. Anyone see anything like this, or have suggestions? -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
