export declare enum ExpressionType {
    GAIN = "gain",
    PAN = "pan",
    TRANSPOSE = "transpose",
    TIMBRE = "timbre",
    FORMANT = "formant",
    PRESSURE = "pressure",
    CHANNEL_CONTROLLER = "channelController",
    CHANNEL_PRESSURE = "channelPressure",
    POLY_PRESSURE = "polyPressure",
    PITCH_BEND = "pitchBend",
    PROGRAM_CHANGE = "programChange"
}