Callers cant hear me on skype on ubuntu

The sound settings for Skype are IN Skype and not in the computer sound settings. Skype>S Button (bottom left)>Options>Sound Devices. You will need to experiment and try the different microphone settings.

 I had to change to the settings with "HW" in it to get it to work. Now the Default does a reasonable job at identifying the sound card outputs, so a headset work just fine. I have had problems with USB and my USB Internet 'phone.

How is your microphone connected? Built-in? Soundcard? USB?

Try a Test call...

First of all thank u for replying :D

I have checked those settings in skype, and the only options i have is Pulseaudio. i cant change it to anything else. i unchecked the box where it says that skype is allowed to automatically adjust my mixer levels. i went into the alsa menu and made everything maximum.
My mic is built in but test call doesnt work either.. i had windows on this eepc before it completely crashed so i put ubuntu on it.. in win times everything worked fine.. so i know its not my pc.. i mean i guess...cuz it worked....

I feel like an idiot.. cuz i dunno whats wrong...

Several questions:
 - In System/Preferences/Sound an Audio source selected that looks like being a sane audio device?
 - Is the microphone working in any other application? You can use pavumeter as a test application. Sometimes skype doesn't trust the linux driver and uses its own one
 - Again in System/Preferences/Sound: Is there any way of specifying the gain of the microphone? Most sound cards contain a mixer device that might be working against you
 - There are two types of microphone. Ones with an integrated amplifier and microphones without. And there are different types of soundcard inputs: Some provide the 5V power supply for a microphone amplifier and some don't. And european audio devices use other voltage levels than american ones; Some times the electrical characteristics of microphone and sound card input just don't match.
 - Which audio hardware are you using? (opening a terminal (Accessoires/Terminal) and typing "sudo lshw -class audio" should output this information)

ok one sec lolol very much info :D be soft on a girl here ok here is the output of the sudo thingie:
sidi@sidi-laptop:~$ sudo lshw -class audio
PCI (sysfs)
sidi@sidi-laptop:~$

Thats all

In the preferences >sound my hw is called :Internal ouput1/input1 analog stereo duplex.
When i go to input there is one thing its called:Internal Analog Stereo

Thanks again

Sorry i forgot to add that i tried in pavumeter and i could record and hear myself just superfine..

What you can also try is to install paman and look there if a valid audio device is selected.

Background: The linux sound system is split into pieces that are small enough that teams with limited ressources are able to maintain them - and complexity of every piece is small enough that it can be handled at all:
 - First of all there is Alsa, which is split into a driver that is part of the system kernel and a library (windows users will know libraries as DLLs) that accesses this driver for you. Since a library can do complex things alsa can do cool things for you.
 - alsa has a draw-back, though: It works only on linux and if a program tries to output sound this sound is output on the computer the program tuns on. Which most of the times is what you would expect it to do - but if you are starting an application on a remote computer a sound server like pulseaudio comes in handy.
 - and if you want to send MP3 files to the audio driver and to have the audio driver care about decoding them you want to use gstreamer. But skype doesn't do that

This all sounds logical but leaves you with 4 places to search at if everything goes wrong at once.

If pavumeter works the sound system works fine, I am out of ideas - and ask you to reply something to this comment of mine to make launchpad set the status of this question to "open" again hoping that someone that knows more about skype than I do will read it.

ok i typed in paman into the ubuntu software system it said it is installed.
so i went to system>administration >hardware drivers and it said no properiatary drivers are in use on this system.. thats sounds super bad... :( please excuse me for being so slow.. but as i said i just started with ubuntu 3 weeks ago.. and i am yet to become a geek :D so bear with me please.. how can i fix that?

oh another thing in the hardware drivers there is nothing in there to click on to enable or so.. its totally empty...

ok but if i remove pulseaudio.. will my audio work? dont i need a replacement then or something?

Thanks arochester, that solved my question.

Oh my gooood yayayayayay it worked it worked!! jippie :D i officially love u right now jippieee thank u so so so so so much!!