Patent ID: 7062337

Claim:
A processing system capable of electronically generating reverberation signals having a decay rate, the system comprising: (A) a notchpass filter for receiving a signal and generating an output signal, comprising: a first module for delaying the signal by a first delay value; a first multiplier for scaling the signal according to a first gain; and a second multiplier for scaling the signal according to a second gain, where the first module and first and second multipliers are operatively coupled to form a first signal processing circuit path, the notchpass filter having a comb filter amplitude and delay output response characterized by a plurality of delay maximum at certain frequencies and a plurality of gain minimum at said certain frequencies; (B) an energy transmission network for receiving the output signal from the notchpass filter, the energy transmitting network comprising: a second module for delaying the signal by a second delay value; and a third multiplier for scaling the signal according to a third gain, where the second module and third multipliers are operatively coupled to form a second signal processing circuit path that both delays and scales the received signal; the values of the first and second gain have a defined relationship with the first and second delay values and the third gain; and the combined notchpass filter and energy transmitting network have an amplitude output response characterized by a plurality of gain minimum at the same frequencies as a plurality of delay maximum so that the decay rate is substantially identical at all frequencies.