RU2625896C1 - Method for colour rendering of stereophonic signals - Google Patents

Method for colour rendering of stereophonic signals Download PDF

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Publication number
RU2625896C1
RU2625896C1 RU2016106082A RU2016106082A RU2625896C1 RU 2625896 C1 RU2625896 C1 RU 2625896C1 RU 2016106082 A RU2016106082 A RU 2016106082A RU 2016106082 A RU2016106082 A RU 2016106082A RU 2625896 C1 RU2625896 C1 RU 2625896C1
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RU
Russia
Prior art keywords
color
screen
observer
colour
images
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RU2016106082A
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Russian (ru)
Inventor
Вячеслав Евгеньевич Гальцев
Ольга Олеговна Матросова
Владимир Исфандеярович Аджалов
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Ольга Олеговна Матросова
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Priority to RU2016106082A priority Critical patent/RU2625896C1/en
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Publication of RU2625896C1 publication Critical patent/RU2625896C1/en

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Classifications

    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63JDEVICES FOR THEATRES, CIRCUSES, OR THE LIKE; CONJURING APPLIANCES OR THE LIKE
    • A63J17/00Apparatus for performing colour-music

Abstract

FIELD: physics.
SUBSTANCE: method for colour rendering of stereophonic signals consists in the fact that the original sources of sound are identified by the number and location relative to the observer, according to the results of this identification the colour images for each source are formed, starting with the observation point, screen position, with attenuation of colour image luminous intensity, corresponding to each of the stereophonic signal sources, toward the edge of the screen or its edges. When each source is displaced during rendering, the emission center of the colour images on the screen is proportionally moved. When forming the colour images, the absence of the colour mixing effect for the observer is ensured, by using the required number of immediately adjacent screen pixels for each fragment of colour images.
EFFECT: observer's possibility to independently change the correspondence between the audio and colour frequency ranges, possibility to avoid the mixing colour effect is ensured.
1 cl

Description

The present invention relates to the field of color music and is intended for color display of stereo signals.

Known methods for color displaying audio signals, namely that the color accompaniment of these signals is realized using separate low-power light emitters of several ranges that project onto the screen (see, for example, USSR copyright certificate No. 174541, A63J 17/00, published 01.01. .1965). Such technical solutions use extremely limited color separation (usually three colors), differ in a rigidly established correspondence between the audio and color frequency ranges, and do not have additional capabilities for color displaying stereo audio signals.

The closest in technical essence to the proposed one is the method of color displaying stereo signals, which consists in dividing two-channel stereo signals into several audio ranges, establishing the correspondence of these audio ranges with a fixed set of colors and, in the process of reproducing stereo signals, displays associated with stereo signals color dynamically changing images on the screen, available for direct viewing by the observer (pat ie RF №2438747, A63J 17/00, publ. 10.01.2012).

In the known technical solution, glasses of separate fields of view are used, as a result of which each eye observes its own screen, the sound range is divided into nine subranges, which are assigned nine colors, and the additive color addition, i.e. signals of various combinations of sound frequencies, is used on the screens reproduced simultaneously can be displayed with approximately the same color images.

The main disadvantages of this method of color displaying audio stereo signals are the limited functionality of the method, including once and for all the established correspondence between the bands of reproducible sound frequencies and optical radiation sources, as well as the need to use two specially made and installed screens.

Solved by the invention, the task is to increase the functionality of the method while simplifying its hardware implementation.

The technical result that can be achieved by implementing the method is the use of all available capabilities available to the observer of the display device.

To solve the problem with the achievement of the expected technical result in the known method for color displaying stereo signals, which consists in dividing two-channel stereo signals into several audio ranges, establish the correspondence of these audio ranges with a fixed set of colors and, in the process of reproducing stereo signals, display the associated with stereo signals, color dynamically changing images on the screen, available for direct According to the proposal, preliminarily, the sound range of the sound reproduction device and the color range of the image output device are brought into one-to-one correspondence, as well as the choice of color pictures for display on the screen is performed, during playback, the stereo signals are analyzed in real time, namely, they identify source sound sources by the number and location relative to the observer, according to the results of this identification, color Images for each source are generated, starting from the corresponding point of view of the observer, the place of the screen, with the weakening of the glow of color images corresponding to each of their sources of stereo signals, towards the edge of the screen or its edges (if the signal source is not from the edge of the picture), moreover, when each of the sources is shifted during playback, the center for emitting color images on the screen is proportionally moved, while forming color images, provide the effect of mixing colors for the observer, by using for each fragment of color images the required number of screen pixels immediately adjacent to each other, forming each element of each color image, based on the condition of independent resolution of this element by the eye of an average observer located within the distance recommended by the manufacturer of the screen observations.

The essence of the invention is illustrated as follows. First, the sound range of the sound reproduction apparatus and the color range of the image output apparatus are brought into one-to-one correspondence. For example, stereo headphones with a reproducible audio range from 150 Hz to 18000 Hz are used as an audio playback device, and a personal computer monitor screen having 256 color display variations (256 possible colors displayed by monitor pixels) is used as an image output device. Using the necessary software (which seems trivial and its specific implementation is not essential to achieve the goal), the observer establishes a unique correspondence between the available sound and color ranges to his taste. In particular, in the simplest case, it is possible to establish a linear correspondence, that is, the entire available sound range, from low frequencies to high, linearly correlate with the color range available, starting from the limit border of the red color displayed by the monitor and ending with the limit border of the displayed violet color.

At the same time, color images are selected that are supposed to accompany the reproduction of a stereo audio signal. As such a picture, one can use either the already widespread forms of color pictures (used as color accompaniment on modern computers, usually without any reference between frequency ranges), or new commercially available forms of dynamically changing images to accompany sound signals, including those invented by specific the observer of the image (for example, bands moving on the screen, spherical waves, etc., moving from the center of the display of each sound source). The specific form of the selected color image is not critical to achieve the goal.

Next, they begin to reproduce stereo audio signals, while again, using the necessary software (which also seems trivial and its specific implementation is not essential to achieve the goal), during playback they perform real-time analysis of stereo signals, namely source sound sources are identified by quantity and location relative to the observer. For example, a game of a vocal-instrumental ensemble of five people is played. The stereo signal can clearly determine the location of each member of the ensemble relative to the used stereo recording equipment, which is identical to the location of these sources during playback of the recording relative to the observer. Each identified source is assigned the current center position of the corresponding color picture on the screen, and when the source moves during playback (for example, when the ensemble guitarist moves around the stage), the center of the corresponding color picture is proportionally shifted. The intensity of each color image is smoothly reduced from the maximum value in the center of that image to the minimum to the periphery of the screen.

In order to avoid additive color mixing (for example, so that blue and red images do not form a violet image), for each element of color images, the required number of screen pixels immediately adjacent to each other are used, forming each element of each color image. The condition for determining the minimum size of such a number of co-located pixels is easily calculated based on the condition of independent resolution of each image element by the eye of an average observer located within the observation distance recommended by the manufacturer of the screen.

As a result, the observer gets the opportunity to first adjust the capabilities of the screen and the device for reproducing stereo signals, as well as select one form or another of color display and then observe the color display of these signals. In this case, it is possible to use stereoscopic glasses of one type or another, with the corresponding screen functionality, which can make it possible to translate the observed images into a three-dimensional view. At the same time, it is planned to use serial equipment in the form of modern personal devices and image output devices.

Thus, the proposed method solves the problem of increasing the functionality of the method while simplifying its hardware implementation.

At the same time, the desired technical result is achieved — using all available capabilities of the display device available to the observer while ensuring the possibility for the observer to independently change the correspondence between the sound and color frequency ranges.

Claims (1)

  1. The method of color displaying stereo signals, which consists in dividing two-channel stereo signals into several audio ranges, sets the correspondence of these audio ranges to a fixed set of colors and, during the playback of stereo signals, displays color dynamically changing images associated with stereo signals on an accessible screen for direct review to the observer, characterized in that it is previously brought to a one-to-one the sound range of the sound reproducing device and the color range of the image output device are in correspondence, as well as the selection of color images for display on the screen is performed, during playback, stereo signals are analyzed in real time, namely, the original sound sources are identified by the number and location relative to the observer, according to the results of this identification, color images for each source are formed, starting from the corresponding, from the point of location the observer, the place of the screen, with the weakening of the intensity of the glow of color images corresponding to each of their sources of stereo signals, towards the edge of the screen or its edges (if the signal source is not from the edge of the picture), and when each of the sources is shifted during playback, the center of emission of color images they proportionally move the screen, while forming color images, ensure that there is no color mixing effect for the observer by using color for each fragment image images of the required number of screen pixels immediately adjacent to each other, forming each element of each color image, based on the condition of independent resolution of this element by the eye of an average observer located within the observation distance recommended by the manufacturer of the screen.
RU2016106082A 2016-02-24 2016-02-24 Method for colour rendering of stereophonic signals RU2625896C1 (en)

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RU2016106082A RU2625896C1 (en) 2016-02-24 2016-02-24 Method for colour rendering of stereophonic signals

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4217040A (en) * 1978-04-03 1980-08-12 Longerbeam Donald A Apparatus for projecting an image having a convoluted focal plane
RU2015562C1 (en) * 1991-06-27 1994-06-30 Геннадий Анатольевич Павловский Method and device for transforming sonic signals to image
WO2005064572A2 (en) * 2003-12-30 2005-07-14 Politecnico Di Milano Method and device for converting sounds into colours or colour patterns
RU2438747C1 (en) * 2010-07-30 2012-01-10 Борис Иванович Волков Method of colour-rendering of audio stereo signals and device to this effect

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4217040A (en) * 1978-04-03 1980-08-12 Longerbeam Donald A Apparatus for projecting an image having a convoluted focal plane
RU2015562C1 (en) * 1991-06-27 1994-06-30 Геннадий Анатольевич Павловский Method and device for transforming sonic signals to image
WO2005064572A2 (en) * 2003-12-30 2005-07-14 Politecnico Di Milano Method and device for converting sounds into colours or colour patterns
RU2438747C1 (en) * 2010-07-30 2012-01-10 Борис Иванович Волков Method of colour-rendering of audio stereo signals and device to this effect

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Effective date: 20180225