Thread: ALSA for audio
View Single Post
  #94 (permalink)  
Old March 3rd 13, 08:38 AM posted to uk.comp.os.linux,uk.rec.audio,uk.tech.digital-tv
Jim Lesurf[_2_]
external usenet poster
 
Posts: 2,668
Default ALSA for audio

Just to let people know I've updated the content of

http://www.audiomisc.co.uk/Linux/ALS...reSilence.html

slightly.

Having just done a fresh install (Xubuntu 12.04) reminded me of what a
subtle and devious PITA 'Pulse audio' can be! Even having set my alsa
default and told Audacious to use it, Pulse was resampling and applying a
volume control to the data stream in between Audacious and the DAC! The
result was downgraded sound quality for some Audacious settings and weird
errors for other settings.

Un-installed Pulse. End of problems. Bit perfect output.

So I've added a stark warning box to the page, alerting readers.

I'm lucky in having an external DAC which displays the format it is being
fed. So I could immediately see it was being given 44.1k when I played a
96k file. Anyone without such a hardware display may simply not know that
the sound was being needlessly degraded.

Slainte,

Jim

--
Please use the address on the audiomisc page if you wish to email me.
Electronics http://www.st-and.ac.uk/~www_pa/Scot...o/electron.htm
Armstrong Audio http://www.audiomisc.co.uk/Armstrong/armstrong.html
Audio Misc http://www.audiomisc.co.uk/index.html