Re: audio issues

[Ted Unangst <tedu_(_at_)_zeitbombe_(_dot_)_org>]

On Sun, 20 Mar 2005, Marco S Hyman wrote:

> The amd64
>
>  auich0 at pci0 dev 7 function 5 "AMD 8111 AC97" rev 0x03: apic 2 int 17 (irq 10), AMD8111 AC97
>  audio0 at auich0
>  auich0: measured ac97 link rate at 44421 Hz, will use 48000 Hz
>
> plays what should be a 12 second 2-tone test in wav format in about
> 2.75-2.85 seconds.   On my i386
>
>  auich0 at pci0 dev 31 function 5 "Intel 82801CA/CAM AC97" rev 0x01: irq 11, ICH3 AC97
>  audio0 at auich0
>  auich0: measured ac97 link rate at 48002 Hz, will use 48000 Hz
>
> the 12 second 2-tone test takes pretty close to 12 seconds.  Note that the
> same driver (auich) is used on both.   To further confuse the issue
> mpg123 plays song36.mp3 just fine.

are you using /dev/sound or /dev/audio?  and how do you play the sample?

if the sample is mono 8 bit, the default settings for /dev/audio should 
play it correctly, but if interpreted as 16 bit stereo for whatever 
reason, it'd play 4 times too fast, just as seen.

--
we don't run washington and no one really does