Jorge Mario G. wrote:
--- Nikolas Britton <[EMAIL PROTECTED]> escribió:Thanks jorge, I had maxautovchans=4 already set but you spurred me on to read the man page for snd and figure out what all the sysctl's do. In the man page I found this:
After switching my main box from windows to freebsd
I have notice a shit load of clicks and pops when playing my mp3s. I have
have a relatively nice sound system setup on my computer (SoundBlaster
Live!, high end Yamaha 2.1 speaker system, and my mp3s encode at
150KB VBR) and this is really annoying me.
What exateley do you mean by clicks and pops? and when did they occur? A blind tip> try enabling virtual channels
Jorge Mario
"hw.snd.targetirqrate:
Set the default block size such that continuous playback will achieve this IRQ rate. This value can be tuned to improve application performance. Increase this value when the sound lags and decrease it if sound stutters or breaks up."
On a whim I change this from 32 to 48 via /boot/loader.conf and rebooted. This (so far) seems to have done the trick, I have not heard any clicks, pops, or other abnormal artifacts when playing my music.
So, for anyone that uses the SoundBlaster Live! and Audigy cards (snd_emu10k1) you might want to try this, here are my settings:
$ sysctl hw.snd hw.snd.targetirqrate: 48 hw.snd.report_soft_formats: 1 hw.snd.verbose: 1 hw.snd.unit: 0 hw.snd.maxautovchans: 4 hw.snd.pcm0.buffersize: 4096
/boot/loader.conf: ## Sound Support #sound_load="YES" #snd_emu10k1_load="YES" #snd_driver_load="YES" hw.snd.maxautovchans=4 hw.snd.targetirqrate=48
Kernel config file:
# Sound Support
device sound # PCM audio device infrastructure
device "snd_emu10k1" # SoundBlaster Live! and Audigy PCI bridge device driver
$ uname -a
FreeBSD spectra.intranet 5.3-RELEASE-p2 FreeBSD 5.3-RELEASE-p2 #0: Thu Dec 2 19:09:20 CST 2004 [EMAIL PROTECTED]:/usr/obj/usr/src/sys/SPECTRA i386
now... I just need to figure out how to disable Line-in and Mic for a better SNR, any takers?
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