hi~ all

my question as title
I can hear my voice from my speaker
but other one can't hear my voice
and i can hear his voice
what happen?
i had check /etc/sound/dsp, i is own

and now, i use "artsdsp -m skype" to execute my skype
because don't do it, have so much noise
do it, no noise
but still have question as above
if any one can solve my question
please tell me, thx~

-----
my system: mdk 10
and desktop is KDE

What sound drivers do you use? (OSS, Alsa)?
In case of Alsa, did you check "full duplex" in KDE Sound Settings, and select alsa as audio device?
In case of OSS, the drivers may not support full duplex...

Note that hearing yourself on the speakers is only a matter of mixer settings. Check that you have the right mixer settings. (Try recording yourself with KRec, eventually while playing some music = duplex check)

What sound drivers do you use? (OSS, Alsa)?
In case of Alsa, did you check "full duplex" in KDE Sound Settings, and select alsa as audio device?
In case of OSS, the drivers may not support full duplex...

Note that hearing yourself on the speakers is only a matter of mixer settings. Check that you have the right mixer settings. (Try recording yourself with KRec, eventually while playing some music = duplex check)[/quote]

i use OSS, i try Alsa, but have noise
so...
if OSS, have solution?
KRec? ok, i will try it
thx~
i will post result later~~

The matter with oss (free) is that quite a lot of drivers do NOT support full duplex...

Noise with alsa is most probably coming from "capture" channel. Check about it with alsamixer!

now, i use alsa, no noise
but, still like OSS
i can hear voice from my friend, but he can't hear my voice
i have open full duplex in KDE's desktop setting
thx~ your ans.
but! now~ what can i do...

First suggestion, check your mixer settings for recording (e.g. with krec) Once you can record, try doing it similtanously with playing music.
If everything works, then skype should work as well! (only trouble left will probably be delay...)

i try Krec
it can't record any sound....
now! what do i must do?

Then this is a configuration issue of your sound...
Either mixer/mic/capture selection issue, or general alsa issue (card-related).
Could you provide your extact mixer settings (alsamixer), and the output of "aplay -l", "arecord -l"?

here is output of "arecord -l"
------------------------------------
card 0: V8235 [VIA 8235], device 0: VIA 8235 [VIA 8235]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: V8235 [VIA 8235], device 1: VIA8235 [VIA 8235]
Subdevices: 1/1
Subdevice #0: subdevice #0
------------------------------------
and is output of "aplay -l"
---------------------------------------
card 0: V8235 [VIA 8235], device 0: VIA 8235 [VIA 8235]
Subdevices: 4/4
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
card 0: V8235 [VIA 8235], device 1: VIA8235 [VIA 8235]
Subdevices: 1/1
Subdevice #0: subdevice #0
----------------------------------------
here, how to post the picture of my alsamixer's settings...

This looks ok.
Might be a mixer trouble. There are two ways to print mixer output. Either resize the mixer window so everything fits onto your consol, and copy paste it.
Another option is to make a screenshot and provide a link to it.
To test your settings, you may run your system in console mode (loging out of KDE!), and try recording/playing using the tools aplay and arecord.

This way you can test your sound settings most efficiently directly accessing alsa. The 2 tools are provided in one of the alsa packages (tools or utils if I remember well)
It also allows you to find out the best settings for your mic (no noise, level not too low, ...)

sorry~ i post this so later..
and, here is the picture of my alsamixer
http://photo.pchome.com.tw/photos1.html?ni...oks_id=1&page=1
you can see 3 photo about my alsamixer shot
it has any problem?
now it still can't work
hope these three shot can help you check what's wrong in my setting

arecord -d hw:0.0 file.wav

i try above code
but, it never stop until i press "Ctrl c" to stop it

how to use this two command
(i never use it)
thx~ your teaching

Forgot to tell, but arecord first tells in what format it is recording, and then records until CTRL+C. You should then take a look at \"file.wav\" and check if anything was recorded, and if so, thant the recording produced the expected result.


It looks so your mixer settings are not appropriate...
I would suggest you to change your mixer settings to look like this:

But anyhow, you can test the different settings with arecord. (Maybe there is also a tool that displays a audio level meter, e.g. KRec that can help as well!)

i use arecord ti record something
but nothing be recorded
it only product a file with 44kb size
i can't play it....

i have looked your picture
but you suggest my mic setting to turn off ?
m...
i can't understand...
and i try it, i can't hear my sound
and arecord still can't work...
maybe i loss something
i still trying that...

I suggested to mute the MIC channel (this is only for immediate playback)
Don't forget to select it for input (space in alsamixer).

Looking again at the pic, I see you have MonoOut set to "mic", can you choose it so it looks "mix"? This may be setting for routing multi-channel output hrough the available connectors... Eventually choosing "Mic2" from "Mic Select" can help too (matter of naming of outputs...)
But as loop-back of your mic input is correct, this is probably not an issue!