Hello, I am new on this, I have a little problem with my HTPC sound configuration. I search a lot and I don't have the solution. I have a Nvidia ION based HTPC. I have connected with optical to the A/V receiver (Sony STR-DG710). The HD movies with "good" audio sounds great and on the receiver puts "DOLBY DIGITAL 3/2.1", but when I play a MP3 file sounds very bad, with noise, and on the receiver puts “PCM 48 kHz“. This is my audio configuration: <pre style="margin-top: 0pt; display: inline;">$ cat /proc/asound/cards 0 [NVidia ]: HDA-Intel - HDA NVidia HDA NVidia at 0xfae78000 irq 20 $ cat /proc/asound/pcm 00-01: ALC662 Digital : ALC662 Digital : playback 1 00-00: ALC662 Analog : ALC662 Analog : playback 1 : capture 1 </pre> I use Debian Lenny and I installed PulseAudio from official repository. When I run PulseAudio Manager this the configuration: <a href="http://img257.imageshack.us/i/pantallazopulseaudioman.png/" target="_blank">http://img257.imageshack.us/img257/9110/pantallazopulseaudioman.png</a> <a href="http://img29.imageshack.us/i/pantallazopulseaudioman.png/" target="_blank">http://img29.imageshack.us/img29/9110/pantallazopulseaudioman.png</a> <a href="http://img29.imageshack.us/i/pantallazopulseaudiomany.png/" target="_blank">http://img29.imageshack.us/img29/9766/pantallazopulseaudiomany.png</a> <a href="http://img518.imageshack.us/i/pantallazopulseaudioman.png/" target="_blank">http://img518.imageshack.us/img518/9110/pantallazopulseaudioman.png</a> <a href="http://img518.imageshack.us/i/pantallazopulseaudiomanp.png/" target="_blank">http://img518.imageshack.us/img518/5256/pantallazopulseaudiomanp.png</a> They are empty, how I must configure? I am new on this. I apreciate all helps. Thanks. -- Josu Lazkano