WO2017099627A1 - Sound system with a set of replaceable acoustic lenses - Google Patents

Sound system with a set of replaceable acoustic lenses Download PDF

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Publication number
WO2017099627A1
WO2017099627A1 PCT/RU2016/000638 RU2016000638W WO2017099627A1 WO 2017099627 A1 WO2017099627 A1 WO 2017099627A1 RU 2016000638 W RU2016000638 W RU 2016000638W WO 2017099627 A1 WO2017099627 A1 WO 2017099627A1
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WIPO (PCT)
Prior art keywords
lens
sound
lenses
acoustic
linear array
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Application number
PCT/RU2016/000638
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French (fr)
Russian (ru)
Inventor
Михаил Алексеевич БАРАНОВ
Дарья Леонидовна БАРАНОВА
Original Assignee
Михаил Алексеевич БАРАНОВ
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Publication of WO2017099627A1 publication Critical patent/WO2017099627A1/en

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/30—Sound-focusing or directing, e.g. scanning using refraction, e.g. acoustic lenses
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/30—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using measurement of the effect of a material on X-radiation, gamma radiation or particle radiation

Definitions

  • the invention relates to audio equipment, namely to extenders of vertical and horizontal directivity of a tape acoustic transducer and can be used in professional acoustic systems (linear arrays) and any other acoustic systems with a tape transducer.
  • the tape converter is a flat frame placed in a magnetic field with a membrane and a voice coil fixed to it, which is a spiral made of an electric wire deposited on the membrane.
  • the tape converter has a narrow vertical orientation, and expansion of the channel, which is vertically provided in the known drivers, of a channel passing vertically by an acoustic membrane is not enough (in a certain field of application), which makes it necessary to expand the vertical direction additionally.
  • the prior art acoustic transducers with fixed stationary acoustic lenses installed in them manufactured by well-known manufacturers of audio equipment “Alcons Audio” (www.alconsaudio.com) and “Stage Accompany” (www.staaeaccompanv.com).
  • the closest analogue of the proposed solution is an acoustic lens in a linear array with a tape converter (application for US patent Ns2007160233, 07/12/2007), which is an acoustic expander mounted by screws in the transducer housing.
  • the lens includes parallel metal trapezoidal fins, narrow facing the transducer.
  • a disadvantage of the known lenses is the impossibility of promptly or the inability to basically change the opening angle of a single element of a linear array embedded in the manufacturer.
  • the technical result of the claimed technical solution is to enable sound propagation from a linear array with tape converter to the desired angle vertically and horizontally symmetrically and asymmetrically by installing the appropriate lens.
  • the claimed technical result is achieved due to the design of a removable acoustic lens in a linear array with a tape transducer, made in the form of a trapezoidal prism with open oppositely arranged parallel side faces with the formation of the input and output openings of the sound channel, while the side face from the side of the inlet passes into the waveguide, the shape of which corresponds to the shape of the output channel of the linear array, the sound channel of the lens is divided into tracks by trapezoidal blades horizontally and or vertically between the side walls of the lens.
  • the lens is made of polymeric material.
  • the speaker system is available with a set of interchangeable lenses suitable for each particular column. Due to the fact that the lenses in the set are made with different angles of vertical and horizontal opening of the tape emitter, it is possible to narrowly focus the energy of the upper elements of the linear array without intersecting sound waves from neighboring elements, placing the lenses with an angle of 5-7 degrees.
  • the installation of a lens with a vertical opening angle of 30 + 50 degrees allows you to use the array element even in the singular, while covering a wide area of acoustic coverage.
  • FIG. 1 speaker housing with one tape converter with a lens speaker housing with one tape converter with a lens.
  • FIG. 2 - a speaker enclosure with a linear array.
  • FIG. 4 are examples of lenses in a kit.
  • the lens is made of plastics (for example, ABS, polyamide, or polypropylene) in the form of a trapezoidal prism with open oppositely arranged parallel side faces with the formation of the inlet and outlet openings of the sound channel.
  • plastics for example, ABS, polyamide, or polypropylene
  • the lens includes side walls 1, the planes of which are located at an angle of 0 90-AND 80 ° to each other on a horizontal plane.
  • Horizontally between the side walls are trapezoidal blades 2, molded from plastic together with the side walls.
  • the side face from the inlet side passes into the waveguide 3, the shape of which corresponds to the shape of the output sound channel 4 of the linear array of tape converters.
  • plastic lens is held onto the array due to the coupling of magnets 6 attached to the front walls of the speaker housing 5 and metal disks glued to the lens 7, plastic clips, Velcro tapes and other similar fasteners can also be used as quick-detachable mountings with corresponding parts mounted on each other front walls of the speaker housing and the side walls of the lens.
  • each lens in the set is suitable only for a candy speaker system, including a housing with a linear array (Fig. 2) of tape converters, on the output channel of each of which a removable acoustic lens from a set of many acoustic lenses is installed using quick-detachable mounts and a large number of lenses are produced to it with different opening angles for different tasks. s

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

The invention relates to audio equipment, and more particularly to vertical and horizontal directivity extenders for a strip acoustic transducer, and can be used in professional sound systems (linear arrays) and any other sound systems having strip transducers. The technical result of the claimed invention is that of enabling sound to propagate at the required angle relative to the vertical and the horizontal, symmetrically and unsymmetrically, from a linear array with strip transducers by mounting corresponding lenses. The present sound system with a set of replaceable acoustic lenses comprises a housing with a linear array of strip transducers, each having a replaceable lens, selected from a set of multiple acoustic lenses, mounted at its outlet channel by means of quick-release fasteners provided on the front walls of the sound system housing, each lens being configured in the form of a trapezoidal prism with open, oppositely arranged parallel lateral faces forming the inlet and outlet openings of a sound channel, the lateral face on the inlet opening side transitions into a waveguide, the shape of which corresponds to the shape of the outlet channel of the linear array, the sound channel of a lens is divided into tracks by trapezoidal vanes arranged horizontally or vertically between the lateral walls of the lens, and each lens has opening angles relative to the vertical and the horizontal that are different from those of the other lenses.

Description

АКУСТИЧЕСКАЯ СИСТЕМА С НАБОРОМ СМЕННЫХ АКУСТИЧЕСКИХ ЛИНЗ ACOUSTIC SYSTEM WITH A SET OF REPLACEMENT ACOUSTICAL LENSES
Изобретение относится к аудиотехнике, а именно к расширителям вертикальной и горизонтальной направленности ленточного акустического преобразователя и может быть использована в профессиональных акустических системах (линейных массивах) и любых других акустических системах с ленточным преобразователем. The invention relates to audio equipment, namely to extenders of vertical and horizontal directivity of a tape acoustic transducer and can be used in professional acoustic systems (linear arrays) and any other acoustic systems with a tape transducer.
Ленточный преобразователь представляет собой помешенную в магнитное поле плоскую рамку с закрепленной на ней мембраной и звуковой катушкой, представляющую собой спираль из электропровода, нанесенного на мембрану. Ленточный преобразователь имеет узкую вертикальную направленность, а конструктивно предусмотренного в известных драйверах расширения канала, проходящего вертикально акустической мембране недостаточно (в определенной сфере применения), вследствие чего возникает необходимость дополнительного расширения вертикальной направленности. УРОВЕНЬ ТЕХНИКИ The tape converter is a flat frame placed in a magnetic field with a membrane and a voice coil fixed to it, which is a spiral made of an electric wire deposited on the membrane. The tape converter has a narrow vertical orientation, and expansion of the channel, which is vertically provided in the known drivers, of a channel passing vertically by an acoustic membrane is not enough (in a certain field of application), which makes it necessary to expand the vertical direction additionally. BACKGROUND
Из уровня техники известны акустические преобразователи с установленными в них стационарными акустическими линзами, выпускаемые известными производителями аудиотехники "Alcons Audio" (www.alconsaudio.com) и "Stage Accompany" (www.staaeaccompanv.com). Наиболее близким аналогом предлагаемого решения является акустическая линза в линейном массиве с ленточным преобразователем (заявка на патент США Ns2007160233, 12.07.2007), представляющая собой акустический расширитель, закрепленный посредством винтов в корпусе преобразователя. Линза включает параллельные металлические трапециевидные ребра, узкой частью обращенные к преобразователю. The prior art acoustic transducers with fixed stationary acoustic lenses installed in them, manufactured by well-known manufacturers of audio equipment "Alcons Audio" (www.alconsaudio.com) and "Stage Accompany" (www.staaeaccompanv.com). The closest analogue of the proposed solution is an acoustic lens in a linear array with a tape converter (application for US patent Ns2007160233, 07/12/2007), which is an acoustic expander mounted by screws in the transducer housing. The lens includes parallel metal trapezoidal fins, narrow facing the transducer.
Недостатком известных линз является невозможность оперативно или невозможность в принципе изменить угол раскрытия единичного элемента линейного массива заложенный на заводе изготовителе. A disadvantage of the known lenses is the impossibility of promptly or the inability to basically change the opening angle of a single element of a linear array embedded in the manufacturer.
РАСКРЫТИЕ ИЗОБРЕТЕНИЯ SUMMARY OF THE INVENTION
Техническим результатом заявленного технического решения является обеспечение возможности распространения звука от линейного массива с ленточным преобразователем на необходимый угол по вертикали и горизонтали симметрично и несимметрично путем установки соответствующей линзы. The technical result of the claimed technical solution is to enable sound propagation from a linear array with tape converter to the desired angle vertically and horizontally symmetrically and asymmetrically by installing the appropriate lens.
Заявленный технический результат достигается за счет конструкции сменной акустической линзы в линейном массиве с ленточным преобразователем, выполненной в виде трапецеидальной призмы с открытыми противоположно расположенными параллельными боковыми гранями с формированием входного и выходного отверстий звукового канала, при этом боковая грань со стороны входного отверстия переходит в волновод, форма которого соответствует форме выходного канала линейного массива, звуковой канал линзы разделен на дорожки трапециевидными лопатками, горизонтально и или вертикально расположенными между боковыми стенками линзы. The claimed technical result is achieved due to the design of a removable acoustic lens in a linear array with a tape transducer, made in the form of a trapezoidal prism with open oppositely arranged parallel side faces with the formation of the input and output openings of the sound channel, while the side face from the side of the inlet passes into the waveguide, the shape of which corresponds to the shape of the output channel of the linear array, the sound channel of the lens is divided into tracks by trapezoidal blades horizontally and or vertically between the side walls of the lens.
Линза выполнена из полимерного материала. The lens is made of polymeric material.
Акустическая система выпускается с набором сменных линз, подходящих к каждой конкретной колонке. За счет того, что линзы в наборе выполняются с разными углами вертикального и горизонтального раскрытия ленточного излучателя, обеспечивается возможность узко фокусировать энергию верхних элементов линейного массива без взаимных пересечений звуковых волн от соседних элементов, разместив линзы с углом 5-7 градусов. Для передачи звука на дальние расстояния (50+100 м), одновременно с этим можно установить в нижние элементы линейного массива акустические линзы с вертикальным углом раскрытия 15+20 градусов для широкой зоны покрытия звуком для ближних расстояний (3+15 м). Установка линзы с углом раскрытия по вертикальной плоскости 30+50 градусов позволяет использовать элемент массива даже в единственном числе, охватывая при этом широкую зону акустического покрытия. Таким образом, обеспечивается оптимальное расширение вертикальной направленности ленточного преобразователя, а также распространение звука от акустической системы на ближнюю и дальнюю зону площадки, зала, помещения с использованием минимального количества линейных массивов с ленточными преобразователями. ОПИСАНИЕ ЧЕРТЕЖЕЙ The speaker system is available with a set of interchangeable lenses suitable for each particular column. Due to the fact that the lenses in the set are made with different angles of vertical and horizontal opening of the tape emitter, it is possible to narrowly focus the energy of the upper elements of the linear array without intersecting sound waves from neighboring elements, placing the lenses with an angle of 5-7 degrees. To transmit sound over long distances (50 + 100 m), at the same time, you can install acoustic lenses in the lower elements of the linear array with a vertical opening angle of 15 + 20 degrees for a wide sound coverage area for short distances (3 + 15 m). The installation of a lens with a vertical opening angle of 30 + 50 degrees allows you to use the array element even in the singular, while covering a wide area of acoustic coverage. Thus, the optimal expansion of the vertical orientation of the tape transducer, as well as the propagation of sound from the speaker system to the near and far zones of the site, the hall, and the premises, using the minimum number of linear arrays with tape converters, is ensured. DESCRIPTION OF DRAWINGS
Далее решение поясняется ссылками на фигуры, на которых приведено следующее: Фиг. 1 корпус акустической системы с одним ленточным преобразователем с линзой. Further, the solution is illustrated by reference to the figures, which show the following: FIG. 1 speaker housing with one tape converter with a lens.
Фиг. 2 - корпус акустической системы с линейным массивом. общий вид акустической линзы. FIG. 2 - a speaker enclosure with a linear array. General view of an acoustic lens.
Фиг. 4 - примеры линз в наборе. FIG. 4 are examples of lenses in a kit.
ОСУЩЕСТВЛЕНИЕ ИЗОБРЕТЕНИЯ DETAILED DESCRIPTION OF THE INVENTION
Линза выполнена из пластиков (например, АБС, полиамида, или полипропилена) в форме трапецеидальной призмы с открытыми противоположно расположенными параллельными боковыми гранями с формированием входного и выходного отверстий звукового канала. The lens is made of plastics (for example, ABS, polyamide, or polypropylene) in the form of a trapezoidal prism with open oppositely arranged parallel side faces with the formation of the inlet and outlet openings of the sound channel.
Линза включает боковые стенки 1, плоскости которых расположены под углом 0 90-И 80° друг к другу по горизонтальной плоскости. Горизонтально между боковыми стенками расположены трапециевидные лопатки 2, отлитые из пластика вместе с боковыми стенками. Боковая грань со стороны входного отверстия переходит в волновод 3, форма которого соответствует форме выходного звукового канала 4 линейного массива ленточных преобразователей. The lens includes side walls 1, the planes of which are located at an angle of 0 90-AND 80 ° to each other on a horizontal plane. Horizontally between the side walls are trapezoidal blades 2, molded from plastic together with the side walls. The side face from the inlet side passes into the waveguide 3, the shape of which corresponds to the shape of the output sound channel 4 of the linear array of tape converters.
Пластиковая линза держится на массиве за счёт сцепления магнитов 6 крепящихся на лицевых стенках корпуса акустической системы 5 и приклеенных к линзе металлических дисков 7, также в качестве быстросъемных креплений могут быть использованы пластиковые клипсы, ленты Velcro и другие подобные крепления с установкой соответствующих друг другу частей на лицевых стенках корпуса акустической системы и боковых стенках линзы. The plastic lens is held onto the array due to the coupling of magnets 6 attached to the front walls of the speaker housing 5 and metal disks glued to the lens 7, plastic clips, Velcro tapes and other similar fasteners can also be used as quick-detachable mountings with corresponding parts mounted on each other front walls of the speaker housing and the side walls of the lens.
Конструкция направляющих лопаток 2 и углы между ними могут варьироваться в зависимости от поставленной задачи. Каждая линза в набор подходит только к конфетной акустической системе, включающей корпус с линейным массивом (фиг.2) ленточных преобразователей, на выходной канал каждого из которых, устанавливается сменная акустическая линза из набора множества акустических линз посредством быстросъемных креплений и к ней выпускается большое количество линз с разными углами раскрытия под разные задачи. з The design of the guide vanes 2 and the angles between them may vary depending on the task. Each lens in the set is suitable only for a candy speaker system, including a housing with a linear array (Fig. 2) of tape converters, on the output channel of each of which a removable acoustic lens from a set of many acoustic lenses is installed using quick-detachable mounts and a large number of lenses are produced to it with different opening angles for different tasks. s

Claims

ФОРМУЛА ИЗОБРЕТЕНИЯ  CLAIM
Акустическая система с набором сменных акустических линз, характеризующаяся тем, что включает корпус с линейным массивом ленточных преобразователей, на выходной канал каждого из которых, устанавливается сменная акустическая линза из набора множества акустических линз посредством быстросъемных креплений, выполненных на лицевых стенках корпуса акустической системы, каждая из которых выполнена в виде трапецеидальной призмы с открытыми противоположно расположенными параллельными боковыми гранями с формированием входного и выходного отверстий звукового канала, боковая грань со стороны входного отверстия переходит в волновод, форма которого соответствует форме выходного канала линейного массива, звуковой канал линзы разделен на дорожки трапециевидными лопатками, горизонтально или вертикально расположенными между боковыми стенками линзы, при этом каждая линза имеет углы раскрытия по горизонтали и вертикали, отличные от остальных линз в наборе. An acoustic system with a set of interchangeable acoustic lenses, characterized in that it includes a housing with a linear array of tape converters, on the output channel of each of which, a removable acoustic lens is installed from a set of many acoustic lenses using quick-detachable mounts made on the front walls of the speaker system, each which are made in the form of a trapezoidal prism with open oppositely arranged parallel side faces with the formation of the input and output of the sound channel openings, the side face from the inlet side passes into a waveguide, the shape of which corresponds to the shape of the output channel of the linear array, the sound channel of the lens is divided into tracks by trapezoidal blades, horizontally or vertically located between the side walls of the lens, with each lens having horizontal opening angles and verticals other than the rest of the lenses in the kit.
4 four
ЗАМЕНЯЮЩИЙ ЛИСТ (ПРАВИЛО 26)  SUBSTITUTE SHEET (RULE 26)
PCT/RU2016/000638 2015-12-09 2016-09-23 Sound system with a set of replaceable acoustic lenses WO2017099627A1 (en)

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RU2015152676A RU2617724C1 (en) 2015-12-09 2015-12-09 Acoustic system with a set of interchangeable acoustic lenses
RU2015152676 2015-12-09

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US20090214067A1 (en) * 2008-02-22 2009-08-27 D&B Audiotechnik Gmbh Loudspeaker box with a variable radiation characteristic
DE202014009095U1 (en) * 2014-11-13 2014-12-12 Alexander Baumgärtner Loudspeaker with variable directivity for medium and high frequencies

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