Why use a deprecated API for recording sound (createScriptProcessor)?

[tpaulshippy]

We are attempting to replicate some of these samples, but are using a subclass of AudioWorkletProcessor for the recording instead of the audioContext.createScriptProcessor method that is used in these samples.

Here's what we have:

export const audioRecorderProcessorCode = `
class AudioRecorderProcessor extends AudioWorkletProcessor {
  constructor() { 
    super(); 
    this.recording = false; 
    
    this.port.onmessage = event => {
      this.recording = event.data.type === 'start-recording';
    }; 
  }
  
  process(inputs) {
    const inputSamples = inputs[0]?.[0]; // First channel of the first input
    
    if (!this.recording || !inputSamples?.length) return true;
    
    const pcm = Int16Array.from(inputSamples, sample => 
      Math.max(-1, Math.min(1, sample)) * 0x7FFF
    );
    
    this.port.postMessage(
      { type: 'audio-data', audioData: pcm.buffer }, 
      [pcm.buffer]
    );
    
    return true;
  }
}

registerProcessor('audio-recorder-processor', AudioRecorderProcessor);
`;


  async initializeAudioWorklet(ctx) {
    const processorBlob = new Blob([audioRecorderProcessorCode], {
      type: "application/javascript",
    });
    await ctx.audioWorklet.addModule(URL.createObjectURL(processorBlob));
  }

Is there some reason these samples use the deprecated API?