Born in Salem, New Jersey, John M. Chowning is most famously known for having discovered the frequency modulation (FM) algorithm, in which both the carrier frequency and the modulating frequency are within the audio band.
Born in Salem, New Jersey, John M. Chowning is known for having discovered the frequency modulation (FM) algorithm in 1967. In FM synthesis, also known as phase modulation, both the carrier frequency and the modulation frequency are within the audio band.