JPS6161200A - Rhythm performer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Technical field of invention] The present invention relates to a rhythm performance device.

[Prior art and its problems]

Conventionally, there are rhythm performance devices that play the sounds of rhythm instruments such as snare drums and maracas in accordance with rhythm patterns.

However, the above-mentioned conventional rhythm performance devices can only perform rhythm performances using rhythm instrument sounds, and cannot play rhythms that can play various sounds that exist in the natural world (hereinafter referred to as natural sounds) such as the barking of a dog in accordance with rhythm patterns. Traditionally, there was no musical instrument.

[Purpose of the invention]

To provide a rhythm performance device capable of performing a performance with an unprecedented atmosphere by making use of natural sounds for rhythm performance.

[Key points of the invention]

The main point of the present invention is to input natural sounds from an input device such as a microphone, convert them into digital signals, store them in the sound source RAM as natural sound data, read out this natural sound data in accordance with a rhythm pattern, and emit the sound. To provide a rhythm performance device capable of performing rhythm performance with a different atmosphere from rhythm performance using only rhythm instrument sounds such as a rhythm performance device.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

In FIG. 1, the symbol ■ indicates a CPU (central processing unit), which controls all of the performance and recording operations of this rhythm performance device. Natural sounds inputted from the microphone 2 are time-divisionally sampled by the sample-hold circuit 3, converted into digital signals by the AD converter 4, and provided to the □pU1 as natural sound data. At this time (3PU1 transfers this natural sound data to the sound source RA)
Write to M5. In that case, the CPU 1 gives a write command read/write control signal R/W to the sound source RAM 5,
Further, this RAM 5 writes the natural sound data in an area designated by the address data AD outputted by the RAM counter 6. Further, the RAM counter 6 performs a counting operation using a clock φ5 of a predetermined frequency generated by a counter 8 which counts a reference clock outputted from a clock generator 7. Furthermore, RAM counter 6 is 0FU.
1, it is reset at the start of reading from the sound source RAM 5.

In the figure, reference numeral 9 is a sound source ROM, which stores the sound data of each rhythm instrument such as bass drum, snare drum, bibat, conga, and maracas in multiple areas as shown in Fig. 2. Sound data is designated by an external switch (not shown). Then, the designated rhythm instrument sound data is addressed and read out by the address data ADZ output by 0PUI, and is given to 0PUI.

Furthermore, in the figure, 10 is a rhythm pattern 110M, which stores a plurality of (samba, bossa nova, etc.) rhythm pattern data,
0P according to the rhythm specified by an external switch (not shown)
Rhythm pattern data specified by address data AD output by the UI is read out and given to the CPU 1. In that case, the rhythm instrument sound data or natural sound data from the 0PUILJf source RA, M5 or the sound source ROM 9 is sent to the DA converter 11 to be converted into a musical sound signal, and then emitted as a rhythm sound via the amplifier 12 and the speaker 13.

Furthermore, numeral 14 in the figure is a switch input section, and the sound source RA,
Recording switch 15 for specifying the recording state of M5, sound source R
In addition to a play switch 16 that specifies the reading state of rhythm instrument sound data of the OM9, a play switch 17 that specifies the reading state of natural sound data of the -if source RAM 5,
There are the above-mentioned external switches, and the output of each switch is input to the CPU 1 and processed.

The clock generator 7 receives a set signal from 0PUI at the start of recording or rhythm performance and starts its clock generation operation. Moreover, the sample hold circuit 3 is
It is driven by another clock φ output from the counter 8.

Next, the operation of the above embodiment will be explained. First, sound source RAM5
switch input section 14 to record various natural sounds.
Turn on the recording switch 15, and use the microphone 2 to record, for example, the sound of a car door closing, which corresponds to a bass drum sound, the clapping sound, which corresponds to a snare drum sound, and the 'by-bat sound', as shown in FIG. It collects the sounds of a bell, which corresponds to the sound of a bell, the sound of a drum hitting a drum, which corresponds to the sound of a conga, and the sound of a dog barking, which corresponds to the sound of maracas. Then, the sample and hold circuit 3 time-divisionally samples each of these natural sound waveforms at the frequency of the click φ from the counter 8, and the sampling value is converted into a digital signal via an A-D converter and is converted into a digital signal as natural sound data of 0PUI. is input. 0PU
I is the sound source RA when the recording switch 15 is turned on.
A write command signal W is given to M5 to put it in a write state, and a reset signal is given to the RAM counter 6, and this R
The AM counter 6 receives address data AD of the area where natural sound data is written at the frequency of the counter 8 ptsuk φ1.
Send out. Figure 3 shows sample and hold circuit 3, RAM
The operation timing of the counter 6 is shown in a time chart.

At time to, a natural sound analog signal is inputted from the microphone, and at the next time t, a clock φ2 is output to the sample-hold circuit 3 to perform sampling of the natural sound analog signal.

Furthermore, at the next time t2, the sound source RAM of RAM counter 6
5 is performed, and natural sound data is written into the sound source RAM 5 at the rise time of this clock pulse φ1. In this way, the address data ADt for the sound source RAM 5 is sequentially updated by the RAM counter 6 every time the clock φ is input. Also clock φ.

is supplied to the sample and hold circuit 3, so the natural sound from the microphone is sampled each time, and the AD
It is converted and given to 0PU1.

Therefore, 0PUI further supplies the digitalized natural sound data to the sound source RAM 5, and writes it to the address specified by the RAM counter 6 at that time.

In this way, natural sound data ranging from the sound of a car door closing, which corresponds to the bass drum sound shown in FIG. 2, to the barking of a dog, which corresponds to the maracas sound, are sequentially stored in the sound source RAM 5.

When all recording is completed, the recording switch 15 is turned off.

Next, to explain the automatic rhythm performance operation, for example, when rhythm pattern 1 is to be played with the sound of a dog barking as shown in FIG. data can be read. Next, when the external switch that specifies the dog barking channel is turned on, the CPU 1 sends a read command signal R to the sound source RAM 5.
to make it possible to read the natural sound data of a dog's bark. When the play switch 17 is turned on, reading of the rhythm pattern data and the natural sound data of the dog's bark is started. That is, the natural sound data of the dog's bark is read out in accordance with the reading of the rhythm pattern data and is supplied to the CPU 1. Therefore, the natural sound data of the dog's bark is further sent to the DA converter 11 and converted into a musical sound signal, which is emitted from the speaker 13.

If you want to play rhythm pattern 2 with the sound of a bell as shown in Figure 4, specify rhythm pattern 2 in the same way, then specify the channel of the bell sound, and then press the play switch 17. Just turn it on.

Furthermore, when performing a normal rhythm performance using the sound source ROM 9, for example, if rhythm pattern 1 is performed with a bass drum, specify rhythm pattern 1 using an external switch,
Next, by specifying the bass drum and operating the play switch 16, the address data AD from 0PUI is given to the sound source ROM 9, and the rhythm instrument sound data of the bass drum is read out according to the data of the rhythm pattern 1. D
The signal is supplied to the A converter 11 and emitted from the speaker 13.

Furthermore, since the play switch 16 and the play switch 17 can be switched freely, rhythm performances of normal sound sources and natural sounds can be performed in any combination.

In addition, when playing the natural sounds written in the sound source RAM 5 as shown in FIG. 2, the performance may be performed such that all five natural sounds are read out in parallel for one rhythm pattern.

Further, it is also possible to perform a process of automatically reading out the sound source RAM 5 and the sound source ROM 9 alternately.

〔Effect of the invention〕

As explained above, the rhythm performance device according to the present invention is capable of recording natural sounds such as a dog's voice in the sound source RAM and playing this as a rhythm sound in accordance with a rhythm pattern, which is new and unprecedented. It has the advantage of being able to perform atmospheric rhythmic performances.

[Brief explanation of the drawing]

Fig. 1 is a circuit diagram of an embodiment of the present invention, Fig. 2 is a diagram showing the correspondence between normal rhythm sounds and natural sounds, Fig. 3 is a diagram showing a time chart when recording natural sounds, FIG. 4 is a diagram showing a time chart during rhythm performance. 1...CPU, 2...Microphone,
3...Sample hold circuit, 4...
AD converter, 5... fiRAM, 6...
・RAM counter, 7...Clock generator, 8
...Counter, 9...Sound source ROM. 10... Rhythm pattern ROM, 11...
...DA converter, 12...Amplifier, 13...
...Speaker.

Claims (1)

[Claims] an input means capable of inputting natural sounds that exist in the natural world; a digital conversion means that converts the waveform signal of the natural sound inputted from the input means into digital signalized natural sound data;
a natural sound data storage means for storing natural sound data converted into a digital signal by the digital conversion means; a rhythm pattern data storage means for storing rhythm pattern data; Natural sound data readout control means that reads data in accordance with the rhythm pattern data of the data storage means; and acoustic signal conversion output means that converts and outputs the natural sound data of a predetermined rhythm pattern read by the natural sound data readout control means into an acoustic signal. More rhythm performance equipment.