Gain = function(audiolet, gain) {
    // Same DSP as operators/Multiply.js, but different parameter name
    Multiply.call(this, audiolet, gain);
    this.gain = this.value;
}
Simple gain control

**Inputs**

- Audio
- Gain

**Outputs**

- Audio

**Parameters**

- gain The amount of gain.  Linked to input 1.

@constructor
@extends AudioletNode
@param {Audiolet} audiolet The audiolet object.
@param {Number} [gain=1] Initial gain.