FM synthesis was the success story of the mid-'80s, and synth based on its principles, like Yamaha's DX7, sold by the bucketload — until affordable sample-based synths arrived at the end of the decade. Now, with their new FS1R, Yamaha have updated the technology for the late '90s.
In the penultimate part of his series on synthesizer technology, Paul Wiffen turns his attention to the problem of emulating acoustic instruments in which the sound is produced by a string or reed, and amplified and modified by the body of the instrument.