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Is a microphone jack usually mono?

These are the specifications on my Toshiba Satellite M35X laptop computer. The only sound input is the microphone jack. Can I assume that it is mono and not stereo? How can I tell? I have not purchased a microphone yet. Note: Even though it indicates "Built-in microphone" my model only has a jack, no microphone. Sound • Realtek ALC250 Software Sound • 16-bit stereo; Built-in stereo speakers, Built-in microphone • Direct 3D Sound; DirectSound, 3D Sound , Direct Music, MIDI (playback) • Sound Volume Control Dial I know that stereo requires 2 microphones but I have seen single devices that have both build into them and use a single 3 conductor cable. Many people give advice on how to make copies of cassette tapes and they say to patch it through the microphone jack. I was wondering if any computers had stereo connectors like that or would you always have to have the left and right phillips jacks like on a stereo? As I have indicated THERE IS NO MICROPHONE ON MY MODEL even though the specs say so.

Public Comments

1. yes, its mono. to get stereo, you need two microphones - and two jacks.
2. Its mono.and ur saying it has built in microphone. then ur laptop is with microphone.then whats the use of taking other microphone.