Template:Adding Sound Waves Together

Adding Sound Waves Together

Demo

• Add simple sine wave and observer what happens
  • invert the phase of one wave and add it again

Sine wave with the same frequency will add together and the amplitude will increase by 6dB. If the are inverted the will cancel each other out. If they are out of phase the will add or subtract relative to the degree of the phase shift.

Be careful when you are adding waves together. Since the amplitude. YOu never want the amplitude to increase above 0dB. This is cause clipping.