kern/43542: hdaudio at 32000Hz

[jakllsch%kollasch.net@localhost]

>Number:         43542
>Category:       kern
>Synopsis:       hdaudio(4) 32kHz playback sounds like hissing analog TV snow
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Jun 29 12:50:00 +0000 2010
>Originator:     Jonathan A. Kollasch
>Release:        NetBSD 5.1_RC1
>Organization:
>Environment:
System: NetBSD siwenna.kollasch.net 5.1_RC1 NetBSD 5.1_RC1 (SIWENNA) #26: Sat 
Jun 19 18:27:19 UTC 2010 
root%siwenna.kollasch.net@localhost:/local/siwenna/20100403/src/sys/arch/i386/compile/SIWENNA
 i386
Architecture: i386
Machine: i386
>Description:
32kHz playback with hdaudio(4) sounds awful and takes too long.
>How-To-Repeat:
Using a hdaudio(4)/hdafg(4)/audio(4) device:

$ time audioplay -fs 44100 17\ Let\'s\ Hear\ That\ String\ Part\ Again,\ 
Because\ I\ Don\'t\ Think\ They\ Heard\ It\ All\ the\ Way\ Out\ in\ Bushnell.wav
   40.35s real ...
$ time audioplay -fs 32000 17\ Let\'s\ Hear\ That\ String\ Part\ Again,\ 
Because\ I\ Don\'t\ Think\ They\ Heard\ It\ All\ the\ Way\ Out\ in\ Bushnell.wav
   148.27s real ...

The first invocation produces the expected audio.
The second invocation doesn't, and takes significantly longer to complete.

It probably doesn't make a difference considering azalia(4) works fine,
but both machines I've tried this on use Realtek codec chips.

>Fix:
unknown.