AudioWorkletProcessor.process

var isActivelyProcessing = audioWorkletProcessor.process(
  inputs,
  outputs,
  parameters,
);

class WhiteNoiseProcessor extends AudioWorkletProcessor {
  process(inputs, outputs, parameters) {
    //   
    const output = outputs[0];
    //   gain     
    output.forEach((channel) => {
      for (let i = 0; i < channel.length; i++) {
        //      
        // Math.random  [0; 1);  [-1; 1] 
        //   1       
        channel[i] =
          (Math.random() * 2 - 1) *
          //   
          //  k-rate a-rate 
          // 1  128    
          (parameters["customGain"].length > 1
            ? parameters["customGain"][i]
            : parameters["customGain"][0]);
      }
    });
    //      ,  
    //         
    //    garbage-collected   true  
    return true;
  }
  // process   customGain  
  static get parameterDescriptors() {
    return [
      {
        name: "customGain",
        defaultValue: 1,
        minValue: 0,
        maxValue: 1,
        automationRate: "a-rate",
      },
    ];
  }
}