[Wizard] Wizard audio - reprise

[James Cameron]

I've also been fiddling with audio in the past few days.

I'm still not happy with it.  I can still hear some tiny skips in 
playback.  Audio out connected to pins 1,3,2 of CN17 using wire-wrap.  
No substantial background noise at normal volume levels.

Summary of my doings ...

- Linux kernel 2.4.22 from Debian sources with CONFIG_SOUND_KAHLUA, plus
  Debian's kernel-patch-2.4-lowlatency and kernel-patch-2.4-preempt built
  using "make-kpkg --added-patches preempt,lowlatency --append_to_version
  -wizard-fast kernel-image"

- echo "1" > /proc/sys/kernel/lowlatency

- irqtune 5 (maximum priority for "soundblaster")

- hdparm.conf for /dev/hda { mult_sect_io = 16, interrupt_unmask = on,
  io32_support = 1 dma = on }

- mpg123 --aggressive --realtime

- no Xserver

- ogg123 sounds better, seemingly less skips

- mpg123 to wav file then bplay is quite pathetic ... slow disk?

p.s. The USB sockets appear to be unpowered on both my units.  Any fix?

-- 
James Cameron    mailto:quozl@us.netrek.org     http://quozl.netrek.org/