/**
 * The MicrophoneEnhancedOptions class provides configuration options for enhanced audio (acoustic echo cancellation).
 * Acoustic echo cancellation allows multiple parties to communicate in an audio/video chat application without
 * using headsets.
 *
 *   <p class="- topic/p ">To use acoustic echo cancellation, call <codeph class="+ topic/ph pr-d/codeph ">Microphone.getEnhancedMicrophone()</codeph> to get a reference to
 * an enhanced Microphone object. Set the <codeph class="+ topic/ph pr-d/codeph ">Microphone.enhancedOptions</codeph>
 * property to an instance of the <codeph class="+ topic/ph pr-d/codeph ">MicrophoneEnhancedOptions</codeph> class.
 * </p>
 * @langversion	3.0
 * @playerversion	Flash 10.3
 * @playerversion	AIR 2.7
 */
export declare class MicrophoneEnhancedOptions extends Object {
    /**
     * Enable automatic gain control. A time-domain automatic gain control algorithm is used
     * with noise gating. The default value is off.
     * @langversion	3.0
     * @playerversion	Flash 10.3
     * @playerversion	AIR 2.7
     */
    get autoGain(): boolean;
    set autoGain(enabled: boolean);
    /**
     * Specifies the echo path (in milliseconds) used for acoustic echo cancellation. A longer
     * echo path results in better echo cancellation. A longer echo path also causes a longer delay
     * and requires more computational complexity. The default value is 128 (recommended). The other
     * possible value is 256.
     * @langversion	3.0
     * @playerversion	Flash 10.3
     * @playerversion	AIR 2.7
     */
    get echoPath(): number;
    set echoPath(echoPath: number);
    /**
     * Indicates whether the Microphone input detected a voice.
     *
     *   Possible values are: -1, not enabled; 0, a voice is not detected; 1, a voice is detected.
     * @langversion	3.0
     * @playerversion	Flash 10.3
     * @playerversion	AIR 2.7
     */
    get isVoiceDetected(): number;
    set isVoiceDetected(voiceDetected: number);
    /**
     * Controls enhanced microphone mode. The default value is FULL_DUPLEX for all microphones that aren't USB.
     * The default value for USB microphones is HALF_DUPLEX.
     * See MicrophoneEnhancedMode for possible values and descriptions.
     * @langversion	3.0
     * @playerversion	Flash 10.3
     * @playerversion	AIR 2.7
     */
    get mode(): string;
    set mode(mode: string);
    /**
     * Enable non-linear processing. Non-linear processing
     * suppresses the residual echo when one person is talking. The time-domain non-linear
     * processing technique is used. Turn off non-linear
     * processing for music sources. The default value is true which turns on non-linear processing.
     * @langversion	3.0
     * @playerversion	Flash 10.3
     * @playerversion	AIR 2.7
     */
    get nonLinearProcessing(): boolean;
    set nonLinearProcessing(enabled: boolean);
    constructor();
}