This refers to a process, which is associated with research undertaken by John Chowning, of frequency modulation where both the carrier and modulating signals are in the audio range, or the latter in the subaudio range. (Reduced from Barry Truax - Handbook for Acoustic Ecology CD-ROM Edition. Cambridge Street Publishing, 1999 - CSR-CDR 9901)
Links:
UNESCO DigiArts
- Introduction à l’histoire et à l’esthétique des musiques électroacoustiques: Session 2 - Une nouvelle lutherie ( French )Bibliography:

