Wc-2 Interference of Two Sound Sources (1)
Published: Tuesday 14 March 2006 - Updated: Wednesday 30 March 2011
To demonstrate acoustic interference.
- Stereo Amplifier
- Signal Generator
- Microphone Probe
Click on pictures to enlarge.
The signal generator is fed into the auxiliary input of the stereo amplifier and set to 3-5 kHz. The speakers are positioned approximately six feet apart and directed into the audience. If the microphone probe is traversed along line A-B the nodes and antinodes are readily displayed as minima and maxima on the C.R.O.