// ----------------------------------------------------------------- // Simulates a pluck by replace all the values in the queue with // a value from -0.5 to 0.5 // ----------------------------------------------------------------- public void pluck() { Random rand = new Random(); for (int i = 0; i < frequency; i++) { chord.dequeue(); double randomNum = -0.5 + rand.nextDouble(); chord.enqueue(randomNum); } }
// ----------------------------------------------------------------- // Dequeues, takes the average of it and the sample, then multiplies // by .944 to create an energy decay factor // ----------------------------------------------------------------- public void tic() { try { double note = chord.dequeue(); double newnote = ((note + chord.first()) * 0.994) / 2; chord.enqueue(newnote); } catch (NullPointerException exception) { System.out.println("Empty array"); } }
// ----------------------------------------------------------------- // Constructor takes a frequency to build around // ----------------------------------------------------------------- public GuitarString(double frequency) { this.frequency = frequency; final int sampleRate = 44100; int capacity = (int) Math.round(44100 / frequency); chord = new BoundedQueue<Double>(capacity); for (int i = 0; i < capacity; i++) { chord.enqueue((double) 0); } }