This section provides a set of demonstrations of auditory phenomena intended to be used in conjunction with Chapter 6 of the book. Click on the descriptions below to hear the demonstrations
General
The auditory range: a sequence of tones of 50, 100, 200, 400, 800, 1600, 3200, 6400 and 12800 Hz.
A 200 Hz 'pure tone' (sinusoidal waveform)
A 200 Hz square-wave
White noise
A 135 microsec click
Frequency discrimination: alternating 400 and 404 Hz tones
Fourier synthesis of a 400 Hz square-wave
400 Hz fundamental
With 3rd harmonic (1200 Hz) added
With 5th harmonic (2000 Hz) added
With 7th harmonic (2800 Hz) added
Sequence: 1+3, then 1+3+5, then 1+3+5+7, then square-wave
Modulation and beats
Beats between a 400 and a 404 Hz tone
5000 Hz tone alternating with the same modulated at 200Hz
Noise alternating with the same modulated at 200 Hz
3100 Hz alternating with 3000 + 3200 Hz
'Missing fundamental': 200 Hz square wave with its fundamental subtracted, alternating with a 600 Hz tone
Binaural
'Short delay' means 45 microsec; 'medium' means 90; 'long' means 180.
In each sound-clip, the delay alternates between the ears.