User Guide

56 Client-Side ActionScript Language Reference
Microphone.setUseEchoSuppression()
Availability
■ Flash Player 6.
■ Flash Media Server (not required).
Usage
public setUseEchoSuppression(suppress : Boolean) : Void
Parameters
suppress A Boolean value indicating whether echo suppression should be used (true) or
not (
false).
Returns
Nothing.
Description
Method; specifies whether to use the echo suppression feature of the audio codec. The default
value is
false unless the user has selected Reduce Echo in the Flash Player Microphone
Settings panel.
Echo suppression is an effort to reduce the effects of audio feedback, which is caused when
sound going out the speaker is picked up by the microphone on the same computer. (This is
different from echo cancellation, which completely removes the feedback.)
Generally, echo suppression is advisable when the sound being captured is played through
speakers—instead of a headset—on the same computer. If your SWF file allows users to
specify the sound output device, you may want to call
Microphone.setUseEchoSuppression(true) if they indicate they are using speakers and
will be using the microphone as well.
Users can also adjust these settings in the Flash Player Microphone Settings panel.