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owenm
n00b
Joined: 13 Dec 2003
Posts: 19
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 Posted: Tue Jan 06, 2004 10:22 pm Post subject: Bad sound quality on nForce2 audio |
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I have an Asus A7N8X-Deluxe mobo with onboard sound. This worked fine in my OSS powered 2.4.20-gaming kernel, but I want to live on the edge, man.
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# emerge gentoo-dev-sources-2.6.0-r1.ebuild
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Rebuilt kernel with ALSA.
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# emerge alsautils
# emerge alsa-xmms
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So we gring and grind for a bit.
Sound works! Great! But it does not _sound good!_ The timing varies, but at random times, it starts popping. And when things get really bad, it gets _VERY_ distorted.
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# lsmod
Module Size Used by
snd_intel8x0 31492 2
snd_ac97_codec 63172 1 snd_intel8x0
snd_mpu401_uart 7808 1 snd_intel8x0
snd_rawmidi 25472 1 snd_mpu401_uart
snd_seq_oss 35136 0
snd_seq_midi_event 7936 1 snd_seq_oss
snd_seq 56432 4 snd_seq_oss,snd_seq_midi_event
snd_seq_device 8132 3 snd_rawmidi,snd_seq_oss,snd_seq
snd_pcm_oss 53636 1
snd_pcm 100416 2 snd_intel8x0,snd_pcm_oss
snd_page_alloc 11780 2 snd_intel8x0,snd_pcm
snd_timer 26240 2 snd_seq,snd_pcm
snd_mixer_oss 19456 1 snd_pcm_oss
snd 53956 14 snd_intel8x0,snd_ac97_codec,snd_mpu401_uart,snd_rawmidi,snd_seq_oss,snd_seq_midi_event,snd_seq,snd_seq_device,snd_pcm_oss,snd_pcm,snd_timer,snd_mixer_oss
soundcore 9536 2 snd
usbcore 111188 1
fglrx 202500 7
nvidia_agp 7708 1
agpgart 32520 2 nvidia_agp
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In my mind, load stands out as a culprit... but I am running icewm, and the system is an AMD Barton with 512Mb, so it should be able to take this. Load was hovering at .05.
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# more /etc/modules.d/alsa
# ALSA portion
alias char-major-116 snd
# OSS/Free portion
alias char-major-14 soundcore
##
## IMPORTANT:
## You need to customise this section for your specific sound card(s)
## and then run `update-modules' command.
## Read alsa-driver's INSTALL file in /usr/share/doc for more info.
##
## ALSA portion
alias snd-card-0 snd-intel8x0
## OSS/Free portion
## alias sound-slot-0 snd-card-0
## alias sound-slot-1 snd-card-1
##
# OSS/Free portion - card #1
alias sound-service-0-0 snd-mixer-oss
alias sound-service-0-1 snd-seq-oss
alias sound-service-0-3 snd-pcm-oss
alias sound-service-0-8 snd-seq-oss
alias sound-service-0-12 snd-pcm-oss
## OSS/Free portion - card #2
## alias sound-service-1-0 snd-mixer-oss
## alias sound-service-1-3 snd-pcm-oss
## alias sound-service-1-12 snd-pcm-oss
alias /dev/mixer snd-mixer-oss
alias /dev/dsp snd-pcm-oss
alias /dev/midi snd-seq-oss
alias /dev/sound/mixer snd-mixer-oss
alias /dev/sound/dsp snd-pcm-oss
alias /dev/sound/midi snd-seq-oss
# Set this to the correct number of cards.
options snd cards_limit=1
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Any testing tips? My Steely Dan sounds really awful right now, please help  |
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madtinkerer
Tux's lil' helper
Joined: 14 Nov 2002
Posts: 122
Location: London Ontario Canada
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| Posted: Sun Jan 11, 2004 3:54 pm Post subject: |
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| The problem is that proprietary hardware manufacturers like nvidia don't have true hardware mixing support in their linux drivers, so for now, the sound quality just ain't gonna be that great. |
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