delayTime(t) {
    // if t is an audio node...
    if (typeof t !== 'number') {
      t.connect(this.leftDelay.delayTime);
      t.connect(this.rightDelay.delayTime);
    } else {
      this.leftDelay.delayTime.cancelScheduledValues(this.ac.currentTime);
      this.rightDelay.delayTime.cancelScheduledValues(this.ac.currentTime);
      this.leftDelay.delayTime.linearRampToValueAtTime(t, this.ac.currentTime);
      this.rightDelay.delayTime.linearRampToValueAtTime(t, this.ac.currentTime);
    }
  }
Set the delay (echo) time, in seconds. Usually this value will be
 a floating point number between 0.0 and 1.0.

 @method  delayTime
 @for p5.Delay
 @param {Number} delayTime Time (in seconds) of the delay