Streaming with Amplitude Modulation


Here's an illustration of streaming by amplitude modulation. The sounds you will hear are all sinusoidally amplitude-modulated pure tones. The carrier frequency is always at 6 kHz. The galloping rhythm is produced by an 'A' tone that is modulated at a rate of 100 Hz  while the modulation frequency of the 'B' tone can be changed from 106 Hz to 800 Hz.