Reverbation imparting device

Claim 2

A reverberation imparting device comprising: a single delay memory receiving and storing samples of input signal data in different memory locations; addressing means for causing the delay memory to be addressed to read out a plurality of delay signals corresponding to predetermined delay times; adjusting means for controlling the operation of the addressing means to cause different memory locations to be addressed to collectively alter said predetermined delay times by a common factor; addition means for adding a first group of said delay signals to produce a first added signal and adding a second group of said delay signals to produce a second added signal; and output means for receiving and electrically adding the added signals and outputting a single reverberation signal.

Claim 3

A reverberation imparting device comprising: a delay memory receiving and storing samples of input signal data in different memory locations; a parameter memory for storing parameter data corresponding to delay signals which are to be formed, said parameter data including, for each delay signal to be formed, at least (a) delay time data representative of the amount of delay of the delay signal with respect to the input signal and (b) gain data representative of a gain coefficient of the delay sigal; control means for (a) addressing the delay memory to read out a plurality of delayed signals therefrom in accordance with the delay time data and (b) impart each read-out delayed signal with a gain in accordance with the gain data so as to form said delay signals, wherein the control means includes means for reading the parameter data from the parameter memory corresponding to a plurality of said delay signals; and modifying each item of read-out data by a common factor; and addition means for electrically adding the delay signals to produce a single reverberation signal.

Claim 4

A reverberation imparting device comprising: a delay memory receiving and storing samples of input signal data in different memory locations; a parameter memory for storing parameter data corresponding to delay signals which are to be formed, said parameter data including, for each delay signal to be formed, at least (a) delay time data representative of the amount of delay of the delay signal with respect to the input signal and (b) gain data representative of a gain coefficient of the delay sigal; control means for (a) addressing the delay memory to read out a plurality of delayed signals therefrom in accordance with the delay time data and (b) impart each read-out delayed signal with a gain in accordance with the gain data so as to form said delay signals, wherein the control means includes means for reading the parameter data from the parameter memory corresponding to a plurality of said delay signals; and modifying each item of read-out data by a common factor; and addition means for electrically adding the delay signals to produce a single reverberation signal.

Claim 5

A reverberation imparting device comprising: a single delay memory storing input signal data at a predetermined sampling period and producing a plurality of delay signals corresponding to time intervals between the writing of said input signal data and the reading thereof; coefficient operation means for imparting coefficients to said plurality of delay signals read out from said delay memory; first addition means for adding distinct groups of said coefficient-imparted plural delay signals read out from said delay memory and producing a plurality of added signals; and second addition means for further electrically adding said added signals from said first addition means to provide a single reverberation signal as a reverberation output.

Claim 6

A reverberation imparting device comprising: a single delay memory storing input signal data at a predetermined sampling period and producing a plurality of delay signals corresponding to time intervals between the writing of said input signal data and the reading thereof; coefficient operation means for imparting coefficients to said plurality of delay signals read out from said delay memory; first addition means for adding distinct groups of said coefficient-imparted plural delay signals read out from said delay memory and producing a plurality of added signals; and second addition means for further electrically adding said added signals from said first addition means to provide a single reverberation signal as a reverberation output.

Claim 7

A reverberation imparting device as defined in claim 3 further comprising group coefficient operation means for imparting coefficients to said plurality of added signals from said first addition means.

Claim 8

A reverberation imparting device as defined in claim 3 wherein said delay memory comprises a random-access memory.

Claim 9

A reverberation imparting device as defined in claim 3 further comprising adjusting means for collectively adjusting a plurality of coefficients for said plurality of delay signals.

Claim 10

A reverberation imparting device as defined in claim 6 wherein said adjusting means is capable of changing reverberation characteristics by changing the read-out timing of data stored in said delay memory to proportionally change the time intervals between the delay signals which are read out.

Claim 11

A reverberation imparting device as defined in claim 4 wherein said group coefficient operation means comprises a low-pass filter.

Claim 12

A reverberation imparting device as defined in claim 4 wherein said group coefficient operation means comprises a digital filter.

Claim 13

A reverberation imparting device comprising: a delay memory for receiving and storing successive input signal data samples and providing a plurality of delay signals corresponding to time intervals between writing and reading of the input signal data; first addition means for receiving distinct groups of said delay signals and adding the delay signals within each group to provide a plurality of first addition signals; control means for receiving the first addition signals and selectively and independently modifying each of the first addition signals; and second addition means for electrically adding said modified signals to provide a single reverberation signal.

Claim 14

A reverberation imparting device comprising: a delay memory for receiving and storing successive input signal data samples and providing a plurality of delay signals corresponding to time intervals between writing and reading of the input signal data; first addition means for receiving distinct groups of said delay signals and adding the delay signals within each group to provide a plurality of first addition signals; control means for receiving the first addition signals and selectively and independently modifying each of the first addition signals; and second addition means for electrically adding said modified signals to provide a single reverberation signal.

Claim 15

A reverberation imparting device according to claim 10 wherein the control means includes coefficient operation means for imparting variable coefficients to the first addition signals.

Claim 16

A reverberation imparting device according to claim 10 wherein the control means includes variable filters for variably filtering the first addition signals.