SU1428394A1 - Apparatus for light and music accompaniment - Google Patents

Description

(21) D219729 / 24-21

(22) 03/30/87

(A6) 10/07/88. Bul 37 (72) S.V. Yakovlev (53) 621.828 (088.8)

(56) Patent CU1A No. А256009, cl. A 63 J 17/00, 1983.

USSR author's certificate 1217A47, cl. A 63 J 17/00,.

(34) DEVICE FOR LIGHT SUPPORT OF MUSIC

(57) The invention serves to enhance the effectiveness of the light accompanying music by expanding the range of dynamic variation of the light rhythmic pattern. Register introduction

10, a rhythmic pattern separation unit 7, a pulse generator 8, an I-UIH element 9, as well as the formation of new functional connections allow the direction of movement of the light pattern to be changed. Thus, the low-frequency rhythm of the sound signal determines the shift of the light pattern to the right, the high-frequency rhythm - shift to the left. The device also contains a counter of 1 pulses, a source of 2 sounds, a block 3 for extracting a rhythmic pattern, a generator of 4 pulses and n channels, each of which contains an amplifier 5-1 to 5-p of power and a source 6-1 to 6-p of Light, V The description presents an example of the implementation of the rhythmic pattern allocation unit 7. 1 hp , 1 Il.

(L

four

ISD

oo oo

four

The invention relates to a technique for creating light effects and can be used in the design and production of household goods, for example, new types of light fittings for decorative purposes, in particular for automatic accompaniment of musical works with light effects.

The purpose of the invention is to increase the efficiency of light accompaniment of music by expanding the ranges of dynamic change in the light rhythmic pattern.

The drawing shows a block diagram of a device for music music support.

The device for light accompaniment of music contains a pulse counter 1, a sound source 2 connected in series, a first rhythmic pattern filling unit 3, a first pulse generator A with a trigger input, and n channels, each of which contains a series-connected amplifier 5-1 - 5-p power and 6-1 source - 6-p light, the second rhythm-drawing pattern selection unit 7 are connected in series, the second generator of 8 pulses with a trigger input, the OR element 9 and the shift register 10, the recording outputs of which are connected to responsible outputs

pulse 1, and the input clock pulses with the input of the pulse counter 1. Moreover, the shift input to the right of the shift register 10 is connected to the first input of the element OR 9 and the output of the first generator A of pulses with a trigger input, and the input of the shift to the left of the shift register 10 is connected to the second input of the element OR 9 and the output of the second generator 8 of pulses with a trigger input, while Each of the outputs of the register 10 shift is connected to the input of the matching circuit amplifier 5-1 - 5-p power.

The device works as follows.

In the absence of a sound signal from the output of sound source 2, the signals H1 of the inputs of the first and second generators 4 and 8 pulses do not come from the outputs of the first and second blocks 3 and 7 of the rhythmic pattern selection, and the generators A and 8 pulses work in the multivibrator mode from

by frequency. At the same time at the entrance

- o

five

0 5 o

five

0

five

0

five

the counter 1, the signals arrive through the element OR 9 from the first and second generators 4 and 8 pulses, and changing the state of the outputs of the counter 1 pulses through the shift register 10 and the amplifiers 5-1 to 5 -p power enables ignition of various sources 6-1 - 6 p light. The direction of movement of the light patterns and their rate of change are determined by the frequency of the generators A and 8 pulses. I

When a sound signal appears at the output 2 of the sound source from the output of the first block 3 of the rhythmic pattern extraction, the potential changes to the input of the first generator A of pulses, which changes according to the rhythmic pattern of the low-frequency component of the musical program, and from the output of the second block 7 of the rhythmic pattern to the input The second pulse generator 8 receives the potential, which changes according to the rhythmic pattern of the high-frequency component of the music program. In this case, the frequency of the generators A and 8 pulses changes according to these potentials, i.e. one of the inputs of the element OR 9 receives impulses from generator A, coinciding in frequency with the low-frequency rhythm, and to another input from generator 8, coinciding in frequency with the high-frequency rhythm of the music program. Pulses from both generators A and 8 pulses arrive at the input of counter 1 and pulses, i.e. the change in the dynamics of the light pattern occurs according to the law of change in the general rhythmic pattern, and the change in the direction of movement of the light pattern depends on the shift register 10. The change of movement by one clock cycle occurs with each clock pulse, which is applied to the counter 1 and J micos, and the shift direction is determined by which of the generators A and 8 the clock pulse is supplied. Thus, the low-frequency rhythm determines the shift to the right, the high-frequency rhythm - to the left, and when IT is simultaneously transmitted to both inputs of the register 10, the signals at its output are not industrial output. Each of the outputs of the U register of the shift through the 5-T – 5p 7th power devices of St.Zan with sources 6–1–6-p snetl, and soy-kho; T (1p opr, i lzhlglnie

The first unit 3 of the rhythmic pattern pypepeni consists of a low-pass filter, the cut-off frequency of which is chosen sufficiently low (20-25 Hz) and which can be implemented, for example, by using a second-order active filter based on an operational amplifier and a series-connected frequency converter - eg living The second block 7 in the rhythm pattern is different from the first in the implementation of the filter. As a high-pass filter, an active high-pass filter of the second order with a cut-off frequency of 3 kHz can be applied, implemented, for example, on the basis of an operational amplifier. The element OR 9 is implemented, for example, on the basis of the K 155 series microcircuit. The shift register 10 can be implemented on the basis of the K 155 IR 13 chip, and the sources 6-1 can be light, for example, incandescent lamps with different color filters.

Dividing the rhythmic pattern of a music program into a high-frequency and low-frequency rhythm allows you to control an additional parameter of the light pattern - its movement in one direction or another. Thus, with the light accompanying music, not only the change in the rate of change of the light pattern is made, but also the dynamics of its movement associated with the movement of the sound range of the rhythm pattern, i.e. The movement of the musical rhythm, in frequency, perceived by ear, is functionally related to the direction of movement of the light pattern, perceived by sight, which increases the efficiency of the light movement with the music.

five

0

Claims (2)

1. A device for light accompaniment of music, containing a pulse counter, a series-connected sound source, a first rhythmic pattern extraction unit, a first pulse generator, and n channels, each of which contains a series-connected power amplifier and light source, This is due to the fact that, in order to increase the efficiency of the light accompaniment of music by expanding the range of dynamical change, the light rhythmic pattern, the second blocks connected in series are introduced into it to the selection of the rhythm pattern and the second pulse generator, the element Hjn-i and the register register} | ha, the recording outputs of which are connected to the corresponding outputs of the pulse counter, and the input of clock pulses to the input of the pulse counter. the shift register is connected to the first input of the ICH element and the output of the first pulse generator, and the left shift shift register is connected to the second input of the 1PI element and the input of the second pulse generator, each of the shift register outputs being connected to the corresponding input uyuschego a power amplifier. five 2. The device according to claim 1, wherein the second block of the rhythm pattern has a high-frequency filter connected in series, whose input is 0 the input of the block of the rhythmic pattern, and the frequency converter - voltage, the code of which is the output of the rhythmic pattern selection block. five 0