04175465 is referenced by 10 patents and cites 5 patents.

In a circuit for simulating the sound produced when a stringed instrument, such as a bass viol, is plucked, square wave signals of different frequencies from a tone generator are combined to produce a synthesized sawtooth waveform which is applied to a low pass filter to remove the extremely high order harmonics, and then applied to an amplifier the gain of which is controlled in accordance with an envelope signal having a fast attack and a relatively slow decay. The resulting amplified signal is applied to an off-center-biased amplifier which alters the harmonic content of the output signal as a function of decay time such that when the signal is acoustically reproduced it closely simulates the sound produced when a bass viol string is plucked.

Title
Circuit for simulating string bass sound
Application Number
5/901950
Publication Number
4175465
Application Date
May 1, 1978
Publication Date
November 27, 1979
Inventor
George F Schmoll III
Dolton
IL, US
Agent
Spencer E Olson
Assignee
CBS
NY, US
IPC
G10H 5/12
G10H 1/06
View Original Source