/**
 * Built-in microphone noise reduction.
 *
 * 1) Video: Ignore changes during recording
 * 2) Live Streaming: Ignore changes during delivery
 */
export declare const MicrophoneNoiseReductionEnum: {
    /** Undefined value */
    readonly UNKNOWN: "UNKNOWN";
    /** ON */
    readonly ON: "ON";
    /** OFF */
    readonly OFF: "OFF";
};
/** type definition of MicrophoneNoiseReductionEnum */
export type MicrophoneNoiseReductionEnum = (typeof MicrophoneNoiseReductionEnum)[keyof typeof MicrophoneNoiseReductionEnum];
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