EARS 2

Discover the exciting world of electroacoustic music and learn to make music with sounds.

FM (Frequency Modulation)

FM (Frequency Modulation) Involves one frequency affecting another. FM can be applied as an effect or used as a form of synthesis (see below).

The frequency of an input or carrier sound is modulated by a second (modulator) sound. When the modulating frequency is low and the waveform is simple, such as a Sine WaveThe purest of sounds, looking like a sequence of hills and troughs, the sine wave (or sinusoid) creates the sound of a single frequency with no harmonics or interference.More infoSine Wave, the result is a vibrato. When the modulating frequency is higher, a more complex sound quality is generated.

This modulator usually sound has a frequency that is within the range of human hearing (20Hz – 20kHz). FM synthesis is able to easily create complex sound qualities.

FM