/**
 * Microphone gain.
 *
 * For
 * - RICOH THETA X
 * - RICOH THETA Z1
 * - RICOH THETA V
 */
export declare const GainEnum: {
    /** Normal mode */
    readonly NORMAL: "NORMAL";
    /** Loud volume mode */
    readonly MEGA_VOLUME: "MEGA_VOLUME";
    /** Mute mode (RICOH THETA V firmware v2.50.1 or later, RICOH THETA X is not supported.) */
    readonly MUTE: "MUTE";
};
/** type definition of GainEnum */
export type GainEnum = (typeof GainEnum)[keyof typeof GainEnum];
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