How to record faint sound from the Mic input?

[Dotan Cohen]

I need to record a phone conversation, but the sound from the Mic
input is so weak that recording and playing back in Audacity I hear
almost nothing. How can I either boost the playback or (even better)
boost the input so that the file is recorded in a hearable way?

Kubuntu 9.10. Thanks!

-- 
Dotan Cohen

http://bido.com
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