US 5,290,964 A · Musical tone control apparatus using a detector

Abstract

A musical tone control apparatus controls a musical tone corresponding to a movement itself of an object and the like which is detected by a detector Such detector detects also a moving speed, a moving force, a moving angle or an intensity of given impulse of the object. In the case where the detector is mounted in the vicinity of a player's joint, the detector detects a revolving or bending angle of the player's joint. Hence, the musical tone can be controlled based on such angle of the player's joint. Thus, through this musical tone control apparatus, the player can generate a musical tone having, for example, a desirable tone pitch, a desirable volume and a desirable tone color based on the movement of the object or the player's joint.

Claims82

Dependent claims

A manual musical tone control apparatus comprising:

(a) detecting means for detecting a swing motion of an object to be detected, wherein said detecting means detects one or more movement parameters;
(b) means for outputting musical tone control data which control a musical tone signal based on a detecting result of said detecting means wherein said musical tone control data represent a start signal indicating a start timing for generating a particular musical tone;
(c) sensor means for detecting a movement parameter other than that of said detecting means, a tone pitch or a tone color of said musical tone signal being controlled based on a detecting result of said sensor means;
and
(d) start timing means for generating a musical tone or an envelope of said musical tone based on the musical tone control data.

2 more elements

A musical tone control apparatus comprising:

(a) acceleration sensor means being mounted at said predetermined part of the human body;
(b) first detecting means for outputting a first detection signal the level of which becomes a predetermined level while an output level of said acceleration sensor means becomes higher than a level of a first reference signal;
(c) amplifier means for amplifying a higher harmonic component included within the output signal of said acceleration sensor;
(d) second detecting means for outputting a second detection signal the level of which becomes a predetermined level while the output level of said amplifier means becomes higher than a level of a second reference signal;
(e) interrupt signal generating means for generating an interrupt signal representing that both levels of said first and second detection signals become identical to said predetermined level;
(f) hold means for holding a peak value of said higher harmonic component in response to a timing of said second detection signal;
(g) analog-to-digital converter means for converting said peak value of said higher harmonic component into digital data representing said intensity of impulse;
and
(h) central processing means for converting said digital data into tone pitch data representing a tone pitch of a musical tone in response to the timing of said interrupt signal.

6 more elements

A musical tone control apparatus comprising:

(a) a first integration circuit for integrating an acceleration signal outputted from an acceleration sensor which detects an acceleration of an object so as to convert said acceleration signal into a speed signal representing a moving speed of said object;
(b) a second integration circuit for integrating said speed signal so as to convert said speed signal into a distance signal representing a moving distance of said object;
(c) control means for controlling integration actions of said first and second integration circuit based on a predetermined level of said acceleration signal in a predetermined period;
and
(d) generating means for generating a musical tone signal in accordance with said distance signal.

2 more elements

A musical tone control apparatus for generating a musical tone corresponding to movement of an object to be detected comprising:

(a) a first integration circuit for integrating an acceleration signal outputted from an acceleration sensor which detects an acceleration of said object so as to convert said acceleration signal into a speed signal representing a moving speed of said object;
(b) a second integration circuit for integrating said speed signal so as to convert said speed signal into a distance signal representing a moving distance of said object;
and
(c) control means for controlling integration actions of said first and second integration circuits based on a predetermined level of said acceleration signal in an acceleration increasing period when said acceleration of said object is increasing, said control means outputting an interrupt signal at a timing when said acceleration increasing period is ended;
(d) a central processing unit supplied with said interrupt signal;
(e) analog-to-digital converter means for converting said speed signal and said distance signal into respective digital data at a timing of said interrupt signal under a control of said central processing unit;
(f) register means for storing said digital data therein, said central processing unit reading out said digital data stored in said register means so as to output the digital data corresponding to said speed signal as volume data and also output the digital data corresponding to said distance signal as tone pitch data;
(g) sound generator means for generating a musical tone signal representing a musical tone having a volume corresponding to said volume data and a tone pitch corresponding to said tone pitch data;
and
(h) musical tone generating means for generating said musical tone based on said musical tone signal.

7 more elements

Dependencies are inferred from the claim text.

Musical tone control apparatus using a detector

Life of this patent

Musical tone control apparatus using a detector

Life of this patent

Abstract

Claims82