text: /**
   * @class GainProcessor
   * @extends AudioWorkletProcessor
   *
   * This processor class demonstrates the bare-bone structure of the processor.
   */
  class GainProcessor extends AudioWorkletProcessor {
    static get parameterDescriptors() {
      return [
        {name: 'gain', defaultValue: 0.707}
      ];
    }
  
    constructor() {
      super();
    }
  
    process(inputs, outputs, parameters) {
      let input = inputs[0];
      let output = outputs[0];
      let gain = parameters.gain;
      for (let channel = 0; channel < input.length; ++channel) {
        let inputChannel = input[channel];
        let outputChannel = output[channel];
        for (let i = 0; i < inputChannel.length; ++i)
          outputChannel[i] = inputChannel[i] * gain[i];
      }
  
      return true;
    }
  }
  
  registerProcessor('gain', GainProcessor);
  