User Guide

Microphone class 447
Microphone class
Availability
Flash Player 6.
Description
The Microphone class lets you capture audio from a microphone attached to the computer that is
running Flash Player.
The Microphone class is primarily for use with Flash Communication Server but can be used in a
limited fashion without the server—for example, to transmit sound from your microphone
through the speakers on your local system.
Caution: Flash Player displays a Privacy dialog box that lets the user choose whether to allow or deny
access to the microphone. Make sure your Stage size is at least 215 x 138 pixels; this is the minimum
size Flash requires to display the dialog box.
To create or reference a Microphone object, use the Microphone.get() method.
Method summary for the Microphone class
Property summary for the Microphone class
Method Description
Microphone.get()
Returns a default or specified Microphone object, or null if
the microphone is not available.
Microphone.setGain()
Specifies the amount by which the microphone should
boost the signal.
Microphone.setRate()
Specifies the rate at which the microphone should capture
sound, in kHz.
Microphone.setSilenceLevel()
Specifies the amount of sound required to activate
the microphone.
Microphone.setUseEchoSuppression()
Specifies whether to use the echo suppression feature of
the audio codec.
Property (read-only) Description
Microphone.activityLevel
The amount of sound the microphone is detecting.
Microphone.gain
The amount by which the microphone boosts the signal
before transmitting it.
Microphone.index
The index of the current microphone.
Microphone.muted
A Boolean value that specifies whether the user has allowed
or denied access to the microphone.
Microphone.name
The name of the current sound capture device, as returned
by the sound capture hardware.
CHAPTER 2
ActionScript Language Reference