Reverberation effect imparting system

Details Reverberation effect imparting system Reverberation effect imparting system

1994-06-09

1997-04-15

Kuntz, Curtis

Electrical audio signal processing systems and devices

Sound effects

Reverberators

381 61, 84630, 84661, 84DIG26, H03G 300

Patent

active

056218010

ABSTRACT:
A reverberation effect imparting system includes plural comb filters, each of which has a signal delay line and a feedback loop for filtering a delayed output signal from the delay line and feeding the filtered signal back to the input side with a variable loop gain. The device further includes a junction section which receives the respective output signals from the delay lines of the plural comb filters. The junction section controls the received signals with respective variable scattering coefficients and sums up the thus-controlled signals, so as to introduce the summed signal into the feedback loop of each of the comb filters. In this manner, reverberation control according to the waveguide theory is performed by the junction section, while the conventional-type reverberation control is performed by the comb filters. Thus, reverberation can be controlled through a combination of the two controls.

REFERENCES:
patent: 4984276 (1991-01-01), Smith
patent: 5187313 (1993-02-01), Inoue
patent: 5248844 (1993-09-01), Kunimoto
patent: 5256830 (1993-10-01), Takeuchi et al.

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