How do i disable my built in microphone?

Just plugging in the external mike into the jack should AUTOMATICALLY disconnect the internal mike.

Control Panel, Sounds, look at Recording devices (depends on the OS you are using, you didn't mention, Vista, XP, 7,8?), Mic. Your Headphones jack, when in use, will cause the internal sound to disable, depending on OS the mic setup is a bit different but you should find it in sounds, recording devices.

1. Mic might be disabled/muted in sound control panel - Click on the volume control/sound icon to get the properties
2. For recording you might using another device (e.g. modem)
3. Try recording a sound with built in sound recorder (in Windows it is in START-PROGRAMS-ACCESSORIES-ENTERTAINMENT)
4. Get a new external microphone or a headset wit mic

Hi

... sound issues like you are having do pop up occasionally ... the best thing to do is to reboot the system ... sorry.

Cheers.

I’m happy to assist further over the phone at https://www.6ya.com/expert/ronald_f3c54257e2cc2559

Im not sure I understood exactly the issue but the solutions are more than one ...
you may just uninstall the web cam ...and set the mic you want to use and after that reinstall the web cam ...and you have every chances to be installed and the external mic to remain in use..
or ...to use the mic from the external pink entry of the pc ...just select it from the sound driver ...options..
in your capture program you might also have the choice for which mic to use ....
in your yahoo messenger for example you have this choice on preferences /audio device....
you also may find on your control panel ...sound and audio device /audio../and for the sound recording audio device ...select the one you want...
good luck !

Double click on the little speaker icon on the Desktop toolbar at the bottom right of your screen. The volume control window will open. Click on options then properties. Next check the small round recording button. Now make sure he microphone box is checked then click ok. Now a window will open that will show your microphone recording level. Move the slider up about half way and make sure to check the small "Select" box near the bottom of the slider. Open up sound recorder or whatever application you are using and try to record. If this does not work I would get an external microphone plug it into your laptop and try recording again. If the external mic works then I would think that you internal microphone is not working. There are some very cheap external mics on the market that sound very good. If you are doing any serius recording you may want to invest in a USB microphone. The USB mic should come with it's own software and setup should be pretty simple. I hope I have been helpful.

go into your device manager and disable the onboard microphone

go to the sound recorder available at start ---> programs ---> accessories then entertainment ----> sound recorder.

click on edit -----> Audio properties -------> default input device and change it to the external Mic you have connected.

let me know if this helped, good luck :)

For Vista:
1) go to Start > Control Panel > Sound
2) click the recording tab
3) Right click the device that is not the new one you bought.
4) choose Disable

For XP:
1) Right click My Computer or go to Start > Control Panel > System
2) On the system window click the hardware tab
3) Click the Device Manager button
4) Scroll down to the Sound, video and game controllers.
5) Look for any device that is not your new mic as well as your sound card.
6) Right click and disable anything that are not the mentioned above.
7) Exit and test.

If you have XP and the XP Method above doesnt work then please make a comment stating so so I can give you another solution.

If you put the camcorder in manual mode, there is a microphone sensor that will move when sound is picked up by the external microphone. In manual you can keep everything else automatic. The off for the mic means that the built in mic is turned off when an external mic is attached.