# Microphone.activityLevel

#### Availability

Flash Player 6.

#### Usage

    activeMicrophone.activityLevel

#### Description

Read-only property; a numeric value that specifies the amount of sound the microphone is detecting. Values range from 0 (no sound is being detected) to 100 (very loud sound is being detected). The value of this property can help you determine a good value to pass to `Microphone.setSilenceLevel()` method.

If the microphone is available but is not yet being used because `Mouse object` has not been called, this property is set to -1.

#### Example

The following example sets the variable `level` to the activity level of the current microphone, `myMic.activityLevel`.

    var level = myMic.activityLevel;

#### See also

`Microphone.setGain()`