convertRate.js

function convertIRtoAR(self, numOfSamples) {
  let value = self.value;
  let result = new Float32Array(numOfSamples);
  
  for (let i = 0, imax = result.length; i < imax; i++) {
    result[i] = value;
  }
  
  return result;
}

function convertKRtoAR(self, numOfSamples) {
  let prevValue = self.prevValue;
  let nextValue = self.value;
  let result = new Float32Array(numOfSamples);
  let value = prevValue;
  let step = (nextValue - prevValue) / result.length;
  
  for (let i = 0, imax = resut.length; i < imax; i++) {
    result[i] = value;
    value += stepValue;
  }
  
  self.prevValue = nextValue;
  
  return result;
}