JPH0752344B2 - Sound effect generator - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound effect generator, and more particularly to a sound effect generator capable of generating a sound effect equivalent to that obtained by a so-called scratch recording method.

[0002]

SUMMARY OF THE INVENTION The present invention relates to a sound effect generator,
The sound (waveform) data corresponding to an arbitrary sound is stored in the waveform memory in advance, the sound data is read from the waveform memory according to the operation of the manual operator or the rotating operator, and the sound corresponding to the sound data is stored. By generating the sound, any sound data can be read out at any speed, and the operability can be further improved.

[0003]

2. Description of the Related Art A player desires to exhibit his or her individuality to enrich the musical expression, and tries to generate a unique sound effect. As a method of generating such a peculiar sound effect, for example, a record board is placed on a turntable of a record player, and a performer manually rotates the turntable. There is a so-called scratch recording method in which a pick-up sound from a record board is generated as a sound effect by changing it.

[0004]

As is apparent from the above, the sound effect generator for realizing this scratch recording method requires the use of a record player, and is large in size. Therefore, it is not very portable, and even if it is incorporated into an electronic musical instrument, it occupies a large space and it is difficult to actually incorporate it.

Also, the more the performance is repeated,
The sound quality had deteriorated due to the wear of the vinyl record. According to the scratch recording method, since the rotation speed of the turntable, that is, the rotation speed of the record board is changed, and the rotation direction is frequently changed, the degree of wear is large.
The sound quality is significantly degraded.

Furthermore, when switching the sound effects by the scratch recording method during a performance, it is necessary to replace the record board, and it cannot be said that the operability is still insufficient.

The present invention has been made in view of the above points, and provides a small-sized sound effect generator capable of easily obtaining a sound effect equivalent to that by the scratch recording method with a simple structure and operation. It is the one we are trying to provide.

[0008]

In order to solve such a problem, in the present invention, a manipulator means (a) having a manipulator (4a) for sending manipulator data according to the operation of the manipulator (4a). 2) and the sound data representing a predetermined sound are sequentially stored at each address, and the waveform memory (6) that outputs the corresponding sound data according to the operator data, and the sound data output from the waveform memory based on the sound data. The sound generating means (7 to 9) for generating a sound signal is provided to generate a sound effect corresponding to the operation of the operator.

[0009]

According to the manual operation of the operator, the corresponding sound data is read out from the waveform memory and the sound generating means generates a sound corresponding to the sound data. Therefore, when the player continuously moves the operating element, a sound effect that changes with time according to the moving speed and direction is generated.

As a result, it is possible to generate a sound effect equivalent to the sound effect of the scratch recording method with a small and simple structure without applying the scratch recording method.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 1 shows a sound effect generating device 1 as a whole, which comprises a sound indicating section 2 and a sound generating section 3. The sound instruction unit 2 includes, for example, a slide volume 4 that receives a DC power supply DC, and an analog / digital conversion circuit 5 that converts a divided voltage signal S1 obtained by dividing the DC power supply DC by the volume 4 into address data ADR that is digital data. The sound indicating section 2 operates almost in the same manner as specifying the relative positional relationship between the record needle and the record board in the conventional scratch recording method. Reciprocating the operator 4a of the volume 4 corresponds to rotating the turntable in the conventional method.

The sound generating section 3 comprises a waveform memory 6, a digital / analog converting circuit 7, an amplifying circuit 8 and a sound system 9 which are sequentially connected, and generates a sound corresponding to the address data ADR coming from the sound instructing section 2. When the address data ADR changes in a time-sequential manner, a sound that continuously produces an effect (sound effect) is generated.

In the sound generator 3, the waveform memory 6 receives the address data ADR as read address data. In the waveform memory 6, for example, sound data (waveform data) obtained by sampling a time-varying sound such as a performance sound of several bars or a natural sound generated in the natural world at predetermined intervals is sequentially provided to each address. It is arranged and stored in advance.

When the address data ADR arrives, the waveform memory 6 receives the sound data SDAT stored in the memory area of the address designated by the address data ADR.
The read sound data SDAT is converted into a sound signal SND which is an analog signal through the digital / analog conversion circuit 7, and is further amplified through the amplification circuit 8 to be given to the sound system 9. To be Thus, the sound system 9 produces a sound corresponding to the sound signal SND.

Here, the amplifier circuit 8 amplifies the AC signal, but does not pass the sound signal SND (DC signal) of a constant value that arrives when the operating element 4a is stopped, and filters the DC component blocking. It is designed to work.

In the above structure, the performer operates the operator 4a.
When is slid, the divided voltage signal S1 continuously changes according to the position of the operator 4a, and continuously changing address data ADR is applied from the analog / digital conversion circuit 5 to the waveform memory 6. Thus, the sound data SDAT is read out one after another from different addresses in the waveform memory 6, and is applied to the sound system 9 through the digital / analog conversion circuit 7 and the amplification circuit 8 in order to generate continuously changing sounds. It

At this time, if the player moves the operating element 4a at a high speed, the speed at which different sound data SDAT is read from the waveform memory 6 becomes faster, and the speed at which the sound is generated becomes faster. When the performer moves the operation element 4a in the opposite direction, the address data ADR changes from an increment change to a decrement change, or from a decrement change to an increment change, and the temporal change of the generated sound is reversed. That is, the sound system 9 produces a sound effect that changes according to the range, speed, and direction in which the player operates the operator 4a.
Is generated from.

Even when the operator 4a is not operated, the sound data SDAT corresponding to the position of the operator 4a is output from the waveform memory 6, but the sound signal SND corresponding to the sound data SDAT is Since it becomes a DC signal that maintains a constant level, it is blocked in the amplifier circuit 8, and therefore no sound is generated from the sound system 9.

Therefore, according to the above-described embodiment, it is possible to electronically generate a sound effect equivalent to that by the scratch recording method without using a record player or the like. Further, since a record player or the like is not used, it can be made compact. Furthermore, according to the scratch recording method, the turntable is rotated with both hands in order to generate a sound effect, whereas according to this embodiment, the operator 4a may be operated with one hand, and the other hand. The hand can be used, for example, to operate another musical instrument, and the degree of freedom in playing can be increased. Further, since no record board that easily wears is used, there is almost no deterioration in sound quality due to changes over time, and reliability can be improved.

FIG. 2 shows another embodiment of the present invention, in which parts corresponding to those in FIG. 1 are designated by the same reference numerals. In this embodiment, instead of the sound instruction unit 2 having the configuration shown in FIG. 1, a sound instruction unit 2 formed by a rotary encoder 10 is used, and the digital data output from the encoder 10 according to the rotational position is stored in the waveform memory 6. Address data ADR
I decided to. Therefore, in this embodiment, the performer rotationally operates the rotary element of the rotary encoder 10 and appropriately changes the operation speed, the operation direction and the like to cause the sound system 9 to generate a desired sound effect. be able to.

Also in this embodiment, a sound effect equivalent to the sound effect produced by the scratch recording method can be generated with a small size and a simple structure without using a record player or the like, and one-handed operation is possible. It is possible to improve the sexuality, the reliability, and the flexibility of playing.

In the above-described embodiment, the sound effect generator is exclusively configured, but the sound effect generator may be built in the electronic musical instrument. In that case, the amplifier circuit 8, the sound The system 9 and the like may be shared with those inside the electronic musical instrument. Further, in the case of shared use, the musical sound of the electronic musical instrument may be combined with the sound effect to be generated.

In the above-mentioned embodiment, only one waveform memory 6 is provided. However, a plurality of waveform memories are used, and the waveform memories can be switched and selected to generate various kinds of sound effects. Is also good. Further, although the digital memory is applied in the above embodiment, an analog memory may be applied. Furthermore, the waveform memory 6
The encoding method of the sound data stored in is not limited to the normal PCM method, but any method such as DPCM method, ADPCM method, DM method can be adopted. In this case, a decoding circuit is appropriately provided on the output side of the waveform memory 6 according to the audio data encoding system.

Further, in the first embodiment, the sound instruction section 2
The configuration shown in FIG. 2 is composed of a volume 4 and an analog / digital conversion circuit 5.
A low-pass filter may be inserted between the digital conversion circuits 5 to remove sliding noise or the like generated by sliding the operating element 4a of the volume 4. Further, the sound instruction unit 2 is not limited to the configuration of the above-described embodiment, and may have a linear encoder configuration, for example.

[0026]

According to the first aspect of the present invention, the read address of the waveform memory is specified according to the operator data in order to generate the same effect sound as that of the scratch recording method. Therefore, it is possible to read out any sound data at any speed, and according to the second invention, a scratch sound can be generated by the same operation (rotation operation) as the scratch recording method. Therefore, it is possible to realize a sound effect generating device having better operability.

[Brief description of drawings]

FIG. 1 is a block diagram showing a first embodiment of a sound effect generator according to the present invention.

FIG. 2 is a block diagram showing a second embodiment of the present invention.

[Explanation of symbols]

4 ... Slide volume, 4a ... Operator, 6 ... Waveform memory, 9 ... Sound system, 10 ... Rotary encoder.

Claims (2)

[Claims] 1. A manipulator means having a manual manipulator, which sends manipulator data corresponding to an operation of the manipulator, and sound data corresponding to a desired sound is stored at each address. The sound effect device according to the operation of the manipulator comprises a waveform memory whose read address is designated according to the manipulator data, and sound generating means for generating a sound signal based on the sound data output from the waveform memory. A sound effect generator characterized in that the sound effect is generated. 2. A rotary operator having a rotary operation, wherein the rotary operator is provided.
Operation to output digital data according to the rotation operation of the child
Store the sound data corresponding to the desired sound in the slave unit and each address.
The digital data as address data.
A sound signal based on the waveform memory from which data is read and the sound data output from the waveform memory
Comprising a sound generating means for generating, for generating a sound effect corresponding to the rotational operation of the rotational operation element
A sound effect generator characterized in that