How do I use the microphone that is built in to my Logitech C615 webcam?

SOURCE: Dont Know How To Turn On Microphone on webcam

Normal 0 Go to Control Panel and Click on Sounds, Click on Audio, then Click on the Microphone. Then Click on the drop down and select Camera Microphone.
Click OK and it should work.
Hope this helps. Bud

SOURCE: QuickCam mic doesn't work

I read another post that said to go to Logitech itself for up-dates. This I did......downloaded all new drivers, etc. (the disc that comes with the cam must be out of date !). Then when that was done, I went back on Skype and where you do a 'voice test' I was able to this time around to "choose" my webcam - this was not coming up before at all. So in doing that it activated the mic on the webcam and all was OK. We seniors are supposed to be savvy with the forever changing world of electronic devices today! (LOL)

SOURCE: WebCam is in use by another application

Copy this site and paste it in your browser address bar and hit ENTER.

http://download.cnet.com/ManyCam-Virtual-Webcam/3000-2348_4-10593500.html?tag=mncol

to your web browser and paste it in the Address Bar and hit ENTER.
Then download the program and install it to start having fun with your camera and friends.

Manycam allows you to use your Webcam with multiple programs at the same time. Broadcast your
Webcam on MSN Messenger, Yahoo!, Skype, AIM, Paltalk, and Camfrog all simultaneously. Manycam
also allows you to add cool live CGI (computer generated special effects and graphics) to your
Webcam. Make it appear as if your face or hand is on fire with our "fire" effect.
Pretend you are underwater or make it look like it's snowing inside your house with the
Manycam underwater and snow effects. Add text, graphics, or your country's flag to your video
window.

ManyCam is the freeware tool for you if you use both CamFrog and ICQ, or any other video chat
program, and you want to use them simultaneously. It creates a "virtual" Webcam that
replicates your currently installed camera. It then lets multiple applications
access the video stream without conflict.

ManyCam is compatible with Yahoo, MSN, CamFrog, PalTalk, ICQ, Skype, YouTube, and more. Once
you've installed ManyCam, you need to set ManyCam as the primary input for program that you
want to use. ManyCam will automatically start when you activate your Webcam through that
program. The application includes a bunch of gimmicky features that let you change aspects of
the background and foreground. You can map a new pair of cartoon eyes over your face, and they
track pretty well to your movements, or you can show that your life is hell by replacing the
background with flames.

NOTE: There is an unfortunate toolbar that will install unless you opt out during setup, but
other than that ManyCam is worthy of a Webcam Oscar for cool and useful tech.

Hope this is of some help. Bud

SOURCE: New update for Logitech software available, 48mb.

The download includes the Logitech webcam drivers, bug fixes, support for Windows 7, newer Logitech webcam releases and a new software interface. This is the full release including the webcam driver, but does not contain any third party applications. If you are not having any problems you don't really need to upgrade it.

SOURCE: Logitech Webcam Microphone not working

You may have a laptop with another mic installed or other mic software installed
try setting the webcam mic as default

TEST SPEAKERS
Right click on speaker icon in System Tray or from Control Panel
Select "Playback Devices"
The speaker icon ( checked as working) and volume level graph should be visible
Right click on the volume graph and click "Test"
Left hand speakers followed by right hand should be heard

SET DEFAULT & TEST MIC
Click "Recording" tab.
To set required (webcam) mic as default - click on mic font to highlight and click "Properties"
In lower dropbox display "Use this device enable" click 'OK'
Click "Levels" tab and ramp up sliders ( adjust to suit later)
Return to "Recording". Test mic by speaking and make sure volume graph displays

Restart computer