Effect providing apparatus, effect providing method, storage medium and electronic musical instrument

Patent metadata

Field	Value
Publication number	US-2018090113-A1
Application number	US-201715716078-A
Country	US
Kind code	A1
Filing date	Sep 26, 2017
Priority date	Sep 27, 2016
Publication date	Mar 29, 2018
Grant date	—

Abstract

An effect providing apparatus is provided which ostensibly increases the number of effects that can be simultaneously provided. When switching to flanger processing is performed while filter processing in accordance with a periodic signal (LFO signal) is being performed in an effect processing section that can provide only one effect, a CPU advances the periodic signal (LFO signal) from a phase at the time of the switching, and performs the filter processing in accordance with the advancing periodic signal when the flanger processing is ended. As a result of this configuration, the number of effects that can be simultaneously provided is ostensibly increased.

First claim

What is claimed is:

1 . An effect providing apparatus comprising:
a processor, wherein the processor performs first effect processing for providing inputted musical sound data with a first effect based on a parameter value that varies with time; second effect processing for providing, when provision of a second effect different from the first effect is specified while the first effect is being provided by the first effect processing, the inputted musical sound data with the second effect in place of the first effect; parameter update continuation processing for continuing variation in the parameter value while the second effect is being provided by the second effect processing; and control processing for controlling such that, when the specification of the provision of the second effect is released, the first effect processing provides the inputted musical sound data with the first effect based on the parameter value continued to be varied by the parameter update continuation processing, and wherein the first effect processing does not provide the inputted musical sound data with the first effect while the second effect processing is providing the inputted musical sound data with the second effect.

2 . The effect providing apparatus according to claim 1 , wherein the processor performs tempo update processing for updating a tempo of a musical sound being played back to a specified tempo, and
wherein the parameter update continuation processing continues to vary the parameter value based on the specified tempo.

3 . The effect providing apparatus according to claim 1 , wherein the parameter value is a cutoff frequency value.

4 . The effect providing apparatus according to claim 1 , wherein the parameter update continuation processing continues to vary the parameter value based on a change velocity of the parameter value acquired at timing when the provision of the second effect is specified.

5 . The effect providing apparatus according to claim 1 , wherein the parameter value is a value in accordance with a phase of a low frequency oscillator.

6 . The effect providing apparatus according to claim 1 , wherein the parameter value is a value in accordance with an angular velocity of a low frequency oscillator.

7 . An effect providing method for an effect providing apparatus, comprising:
providing inputted musical sound data with a first effect based on a parameter value that varies with time; providing, when provision of a second effect different from the first effect is specified while the first effect is being provided, the inputted musical sound data with the second effect in place of the first effect processing; continuing variation in the parameter value while the second effect is being provided; and controlling such that, when the specification of the provision of the second effect is released, the first effect is provided based on the parameter value continued to be varied, wherein the first effect is not provided on the inputted musical sound data while the second effect is being provided on the inputted musical sound data.

8 . The effect providing method according to claim 7 , comprising:
updating a tempo of a musical sound being played back to a specified tempo; and continuing to vary the parameter value based on the specified tempo.

9 . A non-transitory computer-readable storage medium having stored thereon a program that is executable by a computer in an effect providing apparatus to perform functions comprising:
providing inputted musical sound data with a first effect based on a parameter value that varies with time; providing, when provision of a second effect different from the first effect is specified while the first effect is being provided, the inputted musical sound data with the second effect in place of the first effect processing; continuing variation in the parameter value while the second effect is being provided; and controlling such that, when the specification of the provision of the second effect is released, the first effect is provided based on the parameter value continued to be varied, wherein the first effect is not provided on the inputted musical sound data while the second effect is being provided on the inputted musical sound data.

10 . The non-transitory computer-readable storage medium according to claim 9 , comprising:
updating a tempo of a musical sound being played back to a specified tempo; and continuing to vary the parameter value based on the specified tempo.

11 . An electronic musical instrument comprising:
the effect providing apparatus according to claim 1 ; an operator; and a loudspeaker which emits a musical sound provided with at least one of the first effect and the second effect by the effect providing apparatus.

12 . The electronic musical instrument according to claim 11 , wherein the processor performs tempo update processing for updating a tempo of a musical sound being played back to a specified tempo, and
wherein the parameter update continuation processing continues to update the parameter value based on the specified tempo.

Assignees

• Casio Computer Co Ltd

Inventors

• Moriyama Osamu

Classifications

• G10H1/18

  Selecting circuits · CPC title

• G10H1/02

  Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos · CPC title

• H04H60/04

  Studio equipment; Interconnection of studios · CPC title

• G10H1/0091 Primary

  Means for obtaining special acoustic effects (combined with modulation G10H1/043) · CPC title

• G10H1/0008

  Associated control or indicating means · CPC title