Re: [Iaxclient-devel] linux, intel asound dmix plugin problem

[Andrea S. <si...@op...>]

Hi All, Alex

just another report: lenovo x60, same audio chipset, same environment
(ubuntu 8.04.01), same kernel.... lead to the same audio problem.
Switching to an USB headphone set makes audio problem disappear. That's
cat /proc/asound/cards output:

sickpig@suinonb:~$ cat /proc/asound/cards
  0 [default        ]: USB-Audio - C-Media USB Headphone Set
                       C-Media USB Headphone Set   at usb-0000:00:1d.0-2, full speed
  1 [Intel          ]: HDA-Intel - HDA Intel
                       HDA Intel at 0xee240000 irq 22

just for the record :)


Andrea

Andrea Suisani wrote:
> Hi Alex,
> 
> I don't know if it's good or bad news, anyhow for report's sake
> that's the story so far. The box, where we're we are experiencing the
> same problem as yours, is an intel macbook(*). Switching desktop manager
> from gmome to e17 makes a big difference in terms of audio quality.
> 
> At first we thought that our problem was solved, cause the audio quality
> was a lot better, but unfortunately that was'nt completely true. We found
> a negative correlation between CPU frequency and sound quality.
> 
> Setting CPU freq to 1GHZ and just using our voip soft phone
> produce an audio stream with a decent quality... increasing
> CPU freq higher than 1GHZ (e.g. due to "ondemand" scaling
> governor) and switching between application makes (due to user normal workflow)
> the sound quality more similar to the one described in Alex first post....
> 
> so it seems to me that some kind of scheduler strangeness is
> hurting us... but I'm just guessing :)

> atuc wrote:
>> hallo,
> 
> [cut]
> 
>> anybody else out here who has experences with alsa dmix/dsnoop plugin
>> and iaxclient?
>