The microphone [in the MBP] is located under the left speaker grille, and can contribute to horrible feedback during a call (the person on the other side hears himself coming out of the speaker on your machine, fedback into your mic).I changed my speaker balance so that output was all to the right speaker, and the effect was fantastic. Conversations are in mono, but you can have a perfect conversation without requiring a headset.
Simple, handy and best of all, this tip doesn't require installing any additional software!Get clearer audio chats on your laptop [LifeClever]More...