Subject: Re: [linux-audio-user] determining source of latency (system info included)
From: Nick Salamander (sandroban_AT_yahoo.com)
Date: Fri Jun 04 2004 - 16:51:27 EEST
i was finally able to get the correct settings using
gnome's alsamixer.
unfortunately, i'm still experiencing latency
problems.
thanks for pointing me to the different mixers apps!
--- LinuxMedia <linuxmedia4_AT_netscape.net> wrote:
> >>> i am experiencing the "system can't keep up"
> >>> messages like crazy, even recording a single
> >>> first track.
> >>>
> >>> often when i speak into the microphone, what
> >>> comes out of the speakers sounds like it has
> >>> a crazy chorus effect on it.
> >>>
> >>> i also wonder what the correct settings to use
> in
> >>> the alsamixer gui are.
>
> >> I also get chorus-like (and echo-like) effects
> >> when I'm doing...
> >> ecasound -i:/dev/dsp -o:/dev/dsp
> >> (in from card 1 and directly out to card 1)
> >>
> >> I have a soundblaster and this is what I did...
> >>
> >>- In KAMix
> >> - Go to the "Capture" tab
> >> - Turn off "Activate" under the "Wave
> Capture"
> >> control (make sure both are "unchecked")
> >>
> >>- In alsamixer
> >> - (de)activate capture on the "Wave" control
> >> (Use the left or right keys to move to
> >> "Wave", then press the space bar and it
> will
> >> toggle "CAPTUR" at the top of the "Wave"
> "level
> >> slider" (or whatever you call it)
>
> > i'm afraid i don't even see a "Wave" item.
>
> > i'm using gnome-mixer and alsamixer-gui.
>
> Some of the mixers don't show all the controls.
> If you You're running the KDE Desktop, then get
> "KAMix". Otherwise try "QAMix" (KAMix is "QAMix
> for the KDE Desktop"). If not then go to a shell
> and type "alsamixer" (if installed) and use
> my above approach. alsamixer will show all the
> controls that your card offers (and even ones
> that your card doesn't offer)
>
> Again... QAMix or KAMix not only show all the
> controls, but they're (much) easier to understand
> than alsamixer.
>
> > i am using "Line" for the input,
>
> Stick with "line in". The mic input
> is usually crappola.
>
> > but i also seem to
> > need something called "ADC" selected for any
> capture
> > to happen at all. but it always sounds
> horrendous.
>
> I haven't run into that situation. I can't comment
> on it.
>
> > i don't know if all this is a separate issue from
> the
> > latency issue or not.
>
> When I did (the above), the sound improved immensly.
> But I haven't done any recording since discovering
> this. But I wouldn't be surprised if it is. If I'm
> not mistaken, I think that the sound is being moved
> around in channels that they don't need to be. And
> with this, you may be saturating the situation with
> too much sound. Anyways, I know the sound improved
> when I shut off Wave Capture. There was no more
> chorus-like effects.
>
> Other things improved, but I don't want to confuse
> the (current) set of issues we're trying to solve
> for you.
>
> Let me know how everything works out.
>
> Rocco
>
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This archive was generated by hypermail 2b28 : Fri Jun 04 2004 - 16:43:57 EEST