How to Use a Microphone for a Computer As a Megaphone

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Most computers have microphone input ports that can be used for a number of purposes. Microphones are useful for making Internet-based phone calls, video conferencing, webcam uses and other functions. Computer microphones are not typically used to simply amplify sound through the speakers -- or act as megaphones -- but they can be used this way. Teachers can use this "computer megaphone" in classroom activities; businessmen can use them in presentations; or speakers can use them to address an auditorium.

  • Plug the microphone to the mic jack on the computer's sound card. This jack will probably be color-coded pink.

  • Turn the microphone on. Some microphones have an "On" switch or button, while others may not.

  • Open the Control Panel from the computer's Start Menu.

  • Type "sound" in the search box.

  • Click the "Recording" tab, then click "Microphone" and select "Properties."

  • Click "Levels" and adjust the volume. Check the speaker icon to ensure that the microphone is not muted. If it is, click the speaker icon to un-mute the microphone.

  • Click the "Listen" tab, then click "Listen to this device" to hear the microphone through the speakers.

  • Adjust the speaker volume to the desired level.

Tips & Warnings

  • Be careful not to turn the microphone on while it is in close proximity to the speakers to avoid audible feedback.

References

  • Photo Credit Jupiterimages/Photos.com/Getty Images
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