This article applies to the following products:
QuickCam 10.x and RightSound supported cameras
QuickCam 11.x and RightSound supported cameras

This article applies to the following platforms:
Windows XP
Windows Vista

RightSound™ Technology:
RightSound™ technology is a feature of Logitech’s new premium webcams that provides acoustic echo cancellation (AEC). This eliminates echo and feedback often created by a microphone and speakers that are in close proximity. Logitech includes this technology so you have clear, echo free audio while remaining completely headset free for an excellent audio experience.

What is AEC:
Acoustic Echo Cancellation, or AEC, is an advanced audio enhancing technology that improves your overall sound experience when talking to others via your computer. With today's audio and video Internet communication applications, you and the person you're talking to can both speak at the same time. It is possible that sounds from the remote party, when played over your computer's speakers, would be picked up by your microphone and sent back to the remote party. This problem is known as echo, and AEC is the technology needed to prevent it from interfering with the quality of your conversations.

AEC functionality:
AEC's purpose is to prevent sounds coming from your computer's speakers from being picked up by your microphone. This can be a significant problem with audio or video calling applications where the sound being inadvertently picked up by the microphone is the voice of the remote party who made them. Without AEC, this echo can detract from the quality of a call; in extreme situations, the echo can degrade the audio experience to the point where the audio is useless.

Reference:
For additional information regarding RightSound Technology and AEC, please see the following articles:

• Knowledge Base article 360023206834: Performance considerations of AEC
• Knowledge Base article 360023206834: Considerations when setting up AEC
• Knowledge Base article 2835: Audio Tuning Wizard general questions
• Knowledge Base article 2837: Enabling or disabling AEC?

Audio Settings in 3rd party video calling applications
For additional help with setting up audio in popular video IM chat applications please see the following links:

• Knowledge Base article 8526: Setting up the audio and video for your webcam in popular chat applications