On 18/12/2007, at 9:52 PM, Paolo Saggese wrote: > may be you're having sample-rate mismatch problems? > > DTS/AC3 streams are usually 48KHz/24bit, while FLAC are most > often 44.1KHz/16bit (CDDA). > > Perhaps your card is set for (or may do only) S/PDIF out at > 48KHz, and you are trying to play a 44.1KHz stream at 48KHz > without resampling? Paolo, When I play a 48 KHz DTS file, my HT receiver displays "PCM 48 KHz"; when I play a 44.1 KHz FLAC file, it displays "PCM 44.1 KHz", so my SPDIF output seems to be sending the correct sample rate. Interestingly, when I use mplayer to decode my DTS test file and play via SPDIF, it comes out distorted. If I tell mplayer to use DTS passthrough on the same file, it sounds perfect. I tested playing the same files as decoded PCM via the optical SPDIF- out on my laptop (Mac OSX, not ALSA) into the same receiver and it played perfect, so its nothing on the receiver/HT end. Any other ideas? Thanks, Tom ------------------------------------------------------------------------- SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user