poor sound quality
I recently bought a C-Media CMI8738/C3DX sound card and the audio quality in Linux is just awful (it's just extremely muffled). I can max out Master and PCM with very little increase in sound output. I haven't tried that other OS (Windows is it...) since I can't get the drive to boot, so I don't know how the audio is in there, but I'm assuming it's much better.
I've tried muting everything except Master and PCM in alsamixer with no effect.
My alsa version is 1.0.11.
00:07.0 Multimedia audio controller: C-Media Electronics Inc CM8738 (rev 10)
Subsystem: C-Media Electronics Inc CMI8738/C3DX PCI Audio Device
Flags: bus master, medium devsel, latency 64, IRQ 201
I/O ports at 5000 [size=256]
Capabilities: [c0] Power Management version 2
snd_cmipci 31808 2
gameport 14536 1 snd_cmipci
snd_pcm_oss 44224 0
snd_mixer_oss 15904 1 snd_pcm_oss
snd_pcm 77060 2 snd_cmipci,snd_pcm_oss
snd_page_alloc 10024 1 snd_pcm
snd_opl3_lib 9696 1 snd_cmipci
snd_timer 21636 2 snd_pcm,snd_opl3_lib
snd_hwdep 8836 1 snd_opl3_lib
snd_mpu401_uart 7296 1 snd_cmipci
snd_rawmidi 22976 1 snd_mpu401_uart
snd_seq_device 8524 2 snd_opl3_lib,snd_rawmidi
snd 48384 14 snd_cmipci,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_opl3_lib,snd_timer,snd_hwdep,snd_mpu401_uart,snd_ra wmidi,snd_seq_device
soundcore 9216 1 snd
edit: I've looked at the HCL for my sound card and it's all positive reviews. Also, I was using the integrated i810 video/audio chip before this card and the sound quality was perfect for my tastes. Surely this pci card is capable of much more than it's giving now.
Last edited by verbose; 09-08-2006 at 12:56 AM.