hi,
i am running ubuntu 10.04, updated to the current proprietary Nvidia graphics
driver and unmuted the S/PDIF outputs in alsamixer.
finally got sound to go over hdmi to my tv...but, the quality is not so good.
I get the same results no matter if i use the delivered alsa drivers ( 1.0.21 i
think ), or if i manually compile alsa 1.0.23
the bizarre thing is that when i do:
aplay -D plug:hdmi /usr/share/sounds/alsa/Front_Center.wav
the quality is PERFECT. no cracking, static, etc...
but when I put a DVD in, or listen to a radio station via rhythmbox, or an mp3
in audacious, the quality is not so hot. it is almost listen-able, but not
quite.
could someone please point me to a configuration I am missing that might help
me?
or could someone please explain the quality discrepency between the .wav file
and other audio file types?
do i NEED a ~/.asoundrc file? if so, what should the contents be? I've seen
differing opinions on this issue.
Really appreciate any help
Thanks
Andy
aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: NVidia [HDA NVidia], device 0: ALC1200 Analog [ALC1200 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 1: ALC1200 Digital [ALC1200 Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 3: NVIDIA HDMI [NVIDIA HDMI]
Subdevices: 1/1
Subdevice #0: subdevice #0
aplay -L
null
Discard all samples (playback) or generate zero samples (capture)
pulse
Playback/recording through the PulseAudio sound server
front:CARD=NVidia,DEV=0
HDA NVidia, ALC1200 Analog
Front speakers
surround40:CARD=NVidia,DEV=0
HDA NVidia, ALC1200 Analog
4.0 Surround output to Front and Rear speakers
surround41:CARD=NVidia,DEV=0
HDA NVidia, ALC1200 Analog
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=NVidia,DEV=0
HDA NVidia, ALC1200 Analog
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=NVidia,DEV=0
HDA NVidia, ALC1200 Analog
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=NVidia,DEV=0
HDA NVidia, ALC1200 Analog
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=NVidia,DEV=0
HDA NVidia, ALC1200 Digital
IEC958 (S/PDIF) Digital Audio Output
hdmi:CARD=NVidia,DEV=0
HDA NVidia, NVIDIA HDMI
HDMI Audio Output
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