Sony PCG-C1XS - Manuel (Page 73)

Connecting an External Microphone 61
Connecting an External Microphone
You can enhance the quality of sound input by using an external
microphone.
To connect an external microphone
Use the m to locate the Microphone connector. Plug the microphone
cable into this connector.
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Make sure your microphone is designed for computer use.
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See the manual supplied with your microphone for more information on installation and use.