CN112135226A - Y-axis audio reproduction method and Y-axis audio reproduction system - Google Patents
Y-axis audio reproduction method and Y-axis audio reproduction system Download PDFInfo
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- CN112135226A CN112135226A CN202010800417.1A CN202010800417A CN112135226A CN 112135226 A CN112135226 A CN 112135226A CN 202010800417 A CN202010800417 A CN 202010800417A CN 112135226 A CN112135226 A CN 112135226A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R5/00—Stereophonic arrangements
- H04R5/02—Spatial or constructional arrangements of loudspeakers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals
- H04N5/607—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals for more than one sound signal, e.g. stereo, multilanguages
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers
- H04N5/642—Disposition of sound reproducers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S1/00—Two-channel systems
- H04S1/007—Two-channel systems in which the audio signals are in digital form
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2203/00—Details of circuits for transducers, loudspeakers or microphones covered by H04R3/00 but not provided for in any of its subgroups
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2205/00—Details of stereophonic arrangements covered by H04R5/00 but not provided for in any of its subgroups
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- Otolaryngology (AREA)
- Stereophonic System (AREA)
Abstract
The Y-axis audio reproduction method and the Y-axis audio reproduction system have the advantages that the sound system comprises nine loudspeakers, at least two loudspeakers are positioned in the X-axis direction of the two-dimensional plane of the target to be detected, at least one loudspeaker is positioned in the Y-axis direction of the two-dimensional plane of the target to be detected, the central processing module obtains the position coordinate source value and the sound value of the two channels, the position coordinate source value of the two channels is disassembled to form the position coordinate target value set according to the preset conversion function relation, and finally the position coordinate target value set is output through the corresponding loudspeakers.
Description
Technical Field
The present invention relates to the field of sound processing technologies, and in particular, to a Y-axis audio reproduction method and a Y-axis audio reproduction system.
Background
With the continuous development of era science and technology, people are transiting from the first dement era to the voiced movie era, and the voiced movie is presented, so that people can enjoy the movie in movie theaters in the rest time to enrich the life. But in the early days, only a small percentage of people were able to enjoy cinema tickets, which were expensive. With the rise of electronic devices, such as televisions, mobile phones, tablet computers and the like, the electronic devices enter thousands of households, and people can watch desired movies at home by using the electronic devices.
However, different from movie theatre viewing, due to the limitation of the structure of the electronic device, when a user uses the electronic device to view a movie, the sound played from the electronic device cannot make the user experience personally on the scene, that is, the stereoscopic impression of the sound is insufficient. This is because, in a cinema, in order to enhance the auditory sensation of the viewer as much as possible, the cinema places a plurality of sounds in each spatial area, so that the sound heard by the viewer's ears when the viewer watches the film has a strong stereoscopic impression. For the existing electronic equipment, taking a television as an example, considering the manufacturing cost of the television, the television generally has only two built-in stereos, namely, two left and right dual-channel stereos, and the two stereos are both positioned in the X-axis direction of the television screen. In order to solve the above problems, the prior art adopts a mode of externally connecting the television with the stereo, and the stereo is arranged around the user, so as to improve the stereo perception of sound, but the above mode has certain limitations:
firstly, the cost of a user can be greatly increased by externally connecting the sound equipment, the stereoscopic impression of sound can be improved by the user by purchasing additional sound equipment, and the externally connecting sound equipment is not preferable for the user with relatively poor economic conditions;
secondly, the external sound system also occupies a large space of the home, and the user has to reserve a large space to install the sound system, which is also not preferable for the user with limited economic conditions.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a Y-axis audio reproduction method and a Y-axis audio reproduction system, which can simultaneously play sound in the X-axis direction and the Y-axis direction, have strong sound stereoscopic impression and enhance the auditory experience of a user.
The purpose of the invention is realized by the following technical scheme: a Y-axis audio reproduction method comprising:
step S01, acquiring a binaural position coordinate source value and a volume value of the target to be detected, wherein the binaural position coordinate source value comprises a left vocal position coordinate source value and a right vocal position coordinate source value;
step S02, according to the two-channel position coordinate source value and the volume value, according to a preset conversion function relationship, the two-channel position coordinate source value is disassembled to form a position coordinate target value set, wherein the position coordinate target value set comprises nine position coordinate target values;
and step S03, correspondingly outputting nine position coordinate target values through each loudspeaker located in the X-axis direction and the Y-axis direction of the two-dimensional plane of the object to be measured.
In one embodiment, the preset transfer function relationship is specifically:
wherein, XL(n) is the source value of the left channel position coordinates, XR(N) is a right channel position coordinate source value, N is an average value of the sum of the left channel position coordinate source value and the right channel position coordinate source value, k is a volume value, and CM (N), LM (N), RM (N), LH (N), LL (N), CH (N), CL (N), RH (N), RL (N) are nine position coordinate target values.
The Y-axis audio reproducing system using the Y-axis audio reproducing method described above includes:
the central processing module is used for acquiring the two-channel position coordinate source value and the volume value of the target to be detected, and disassembling the two-channel position coordinate source value to form the position coordinate target value set according to the preset conversion function relationship, wherein the position coordinate target value set comprises nine position coordinate target values; and
the sound system comprises nine loudspeakers, at least two loudspeakers are positioned in the X-axis direction of the two-dimensional plane of the object to be measured, at least one loudspeaker is positioned in the Y-axis direction of the two-dimensional plane of the object to be measured, and each loudspeaker is used for outputting each position coordinate target value in a one-to-one correspondence mode.
In one embodiment, the nine speakers are all disposed in a 2D screen of the target to be measured, and the nine speakers are distributed in a matrix in a 3 × 3 arrangement.
In one embodiment, each of the speakers is a horn.
In one embodiment, each of the speakers is an activator speaker.
In one embodiment, a space is provided between each two adjacent speakers.
In one embodiment, the central processing module is a CPU.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the Y-axis audio reproduction method and the Y-axis audio reproduction system have the advantages that the sound system comprises nine loudspeakers, at least two loudspeakers are positioned in the X-axis direction of the two-dimensional plane of the target to be detected, at least one loudspeaker is positioned in the Y-axis direction of the two-dimensional plane of the target to be detected, the central processing module obtains the position coordinate source value and the sound value of the two channels, the position coordinate source value of the two channels is disassembled to form the position coordinate target value set according to the preset conversion function relation, and finally the position coordinate target value set is output through the corresponding loudspeakers.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a flowchart illustrating a Y-axis audio reproduction method according to an embodiment of the invention;
FIG. 2 is a schematic diagram of a Y-axis audio reproduction system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a television in the prior art.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Please refer to fig. 3, as shown in fig. 3, which is a schematic structural diagram of a television 20 in the prior art, two speakers 21 are disposed on the television 20, and both the speakers 21 are located in an X-axis direction of a screen of the television 20, when a user watches a movie by using the television 20, the user feels that sound is continuously played from the X-axis direction because the sound can only be played from the two speakers 21, so that the stereoscopic impression is very inconspicuous, and the viewing experience of the user is greatly reduced. This is the most significant drawback of the prior art television set 20. For example, if the film picture is that the character B opens the gun behind the character A, in a movie theater, because the loudspeaker is arranged in the three-dimensional space area where the user is located, when the character B opens the gun behind the character A, the loudspeaker arranged behind the user is mainly responsible for playing sound, even if the user in the movie theater can feel that someone opens the gun behind the user, and the in-person viewing experience is also achieved. However, when the television 20 plays the movie, because the number of speakers of the television 20 is limited and the speakers are all arranged in the television 20, and there is no speaker around the user, the sound can only be played from the television 20, but because the television 20 in the prior art has only two speakers, i.e., two channels on the left and right, the stereoscopic impression of the played sound is not obvious, the same picture of shooting gun is played, and the user cannot achieve the same viewing experience as that of a movie theater viewing the same picture.
Therefore, in order to solve the above technical problem, referring to fig. 1, a Y-axis audio reproducing method includes:
and step S01, acquiring a binaural position coordinate source value and a volume value of the target to be detected, wherein the binaural position coordinate source value comprises a left vocal position coordinate source value and a right vocal position coordinate source value.
Therefore, it should be noted that the binaural position coordinate source value and the volume value of the target to be detected are obtained, the target to be detected may be a television, a notebook computer, or a mobile phone, the target to be detected has a 2D display screen, and the 2D display screen has two directions, namely an X-axis direction and a Y-axis direction, in space; the binaural position coordinate source value includes a left binaural position coordinate source value and a right binaural position coordinate source value, and the step S01 aims to obtain the binaural position coordinate source value and the volume value of the target to be detected.
And step S02, according to the two-channel position coordinate source value and the sound volume value, according to a preset conversion function relationship, disassembling the two-channel position coordinate source value to form a position coordinate target value set, wherein the position coordinate target value set comprises nine position coordinate target values.
Thus, it should be noted that, after the binaural position coordinate source value and the volume value of the target to be detected are obtained, according to the preset transfer function relationship, the binaural position coordinate source value is disassembled to form a position coordinate target value set, where the position coordinate target value set includes nine position coordinate target values, and the purpose of step S02 is to disassemble the binaural position coordinate source value as much as possible to form nine position coordinate target values.
And step S03, outputting the nine position coordinate target values through respective speakers located in the X-axis direction and the Y-axis direction of the two-dimensional plane on the object to be measured.
Therefore, it should be noted that, after the target values of the nine position coordinates are obtained by the disassembly, the target values of the nine position coordinates are correspondingly output.
Referring to fig. 2, the Y-axis audio reproducing method of the present application is further configured with a Y-axis audio reproducing system 10 including a central processing module 100 and a sound box 200.
Thus, it should be noted that the central processing module 100 plays a role of signal acquisition, signal processing and signal output; the sound box 200 is used for receiving the signal transmitted by the central processing module 100 and outputting the related signal.
Referring to fig. 2, the central processing module 100 is configured to obtain a binaural position coordinate source value and a volume value of the target to be detected, and disassemble the binaural position coordinate source value to form a position coordinate target value set according to a preset transfer function relationship, where the position coordinate target value set includes nine position coordinate target values.
Referring to fig. 2, the acoustic group 200 includes nine speakers 210, the nine speakers 210 are located in an X-axis direction of a two-dimensional plane of the object to be measured (i.e., an X-axis direction of the two-dimensional plane, i.e., an X-axis direction of a 2D screen of the object to be measured), at least one speaker 210 is located in a Y-axis direction of the two-dimensional plane of the object to be measured (i.e., a Y-axis direction of the two-dimensional plane, i.e., a Y-axis direction of the 2D screen of the object to be measured), and each speaker 210 is configured to output.
Thus, it should be noted that, because the sound system 200 includes nine speakers 210, and at least two or more speakers 210 are located in the X-axis direction of the two-dimensional plane of the target to be measured, and at least one or more speakers 210 are located in the Y-axis direction of the two-dimensional plane of the target to be measured, the central processing module 100 obtains the binaural position coordinate source value and the volume value, and according to the preset transfer function relationship, disassembles the binaural position coordinate source value to form a position coordinate target value set, and finally outputs the position coordinate target value set through the corresponding speakers, because the speakers 210 are disposed in the X-axis direction and the Y-axis direction, and the position coordinate target value set includes nine position coordinate target values, the sound played by the Y-axis audio reproduction system 10 has a stereoscopic effect, and the auditory sensation of the user is greatly enhanced.
In order to better understand the technical solution of the present application, the following detailed description is made with an embodiment:
example one
Before the description of the first embodiment, in the first embodiment:
the position coordinate target value set includes nine position coordinate target values:
the preset conversion function relationship is specifically as follows:
wherein, XL(n) is the source value of the left channel position coordinates, XR(N) is a right channel position coordinate source value, N is an average value of the sum of the left channel position coordinate source value and the right channel position coordinate source value, k is a volume value, and CM (N), LM (N), RM (N), LH (N), LL (N), CH (N), CL (N), RH (N), RL (N) are nine position coordinate target values;
correspondingly, referring to fig. 2 again, the sound system 200 includes nine speakers 210, the nine speakers 210 are all disposed in the 2D screen of the target to be measured, and the nine speakers 210 are arranged in a matrix manner of 3 × 3.
The nine speakers 210 are specifically the speaker 210-1, the speaker 210-2, the speaker 210-3, the speaker 210-4, the speaker 210-5, the speaker 210-6, the speaker 210-7, the speaker 210-8, and the speaker 210-9, and the nine speakers 210 are arranged in a matrix of 3 × 3.
First, the central processing module 100 obtains a binaural position coordinate source value and a volume value k of the target to be detected, where the binaural position coordinate source value includes a left channel position coordinate source value XL(n) and right channel position coordinate source value XR(n) of (a). It should be noted that, because the coordinate source value of the sound is constantly changed in the picture, the central processing module 100 obtains the binaural position coordinate source value of the target to be detected, which is the binaural position coordinate source value corresponding to the moment, and the binaural position coordinate source value also changes along with the movement of the movie picture. Subsequently, the central processing module 100 disassembles the binaural position coordinate source values to form a position coordinate target value set according to the preset conversion function relationship, where the position coordinate target value set includesNine, CM (n), LM (n), RM (n), LH (n), LL (n), CH (n), CL (n), RH (n) and RL (n) respectively, wherein CM (n) is output by the loudspeaker 210-1, LM (n) is output by the loudspeaker 210-2, RM (n) is output by the loudspeaker 210-3, LH (n) is output by the loudspeaker 210-4, LL (n) is output by the loudspeaker 210-5, CH (n) is output by the loudspeaker 210-6, CL (n) is output by the loudspeaker 210-7, RH (n) is output by the loudspeaker 210-8, RL (n) is output by the loudspeaker 210-9. The original left sound channel position coordinate source value X is converted into the original left sound channel position coordinate source value X through the preset conversion function relationL(n) and right channel position coordinate source value XR(n) are correspondingly converted into nine position coordinate target values, 2.0 double channels are converted into 9.0 channels, and then the signals are correspondingly output from nine loudspeakers 210, so that the three-dimensional effect of sound is improved, and the auditory sense of a user is greatly improved.
It should be noted that, since the solutions of the present application all lie in acquiring, disassembling, and outputting the position coordinate value of the sound signal, the position coordinate value being a Vector value, the sound output by the present application can move following the movement of the film picture, thereby greatly enhancing the auditory perception of the user.
It should be noted that, referring to fig. 2 again, there is a bullet 30 in the 2D screen shown in fig. 2, the moving path of the bullet 30 in the screen is AB, when the audio and video synchronization method of the present application is adopted, since the binaural position coordinate source value of the bullet 30 in the moving path AB continuously changes, the position coordinate target value set formed by the disassembly also continuously changes, when the bullet 30 moves from point a to point B, the speaker 210 on the moving path AB is the main sound generating device of the bullet 30, when the user views the moving path of the bullet 30 through the 2D screen, in combination with the sound signal output by the speaker 210, the bullet 30 can be obviously sensed to move from point a to point B on the 2D screen, and the present application is that the user can really feel the change process of the sound of the bullet 30 by continuously acquiring, disassembling and outputting the position coordinate value of the bullet 30 on the moving path AB, therefore, the stereoscopic impression of sound is improved, and the visual experience of a user is greatly improved.
It should be noted that the Y-axis audio reproduction system 10 may be disposed outside the 2D screen of the object to be measured, in addition to being disposed inside the 2D screen of the object to be measured. For example, when a movie is played by using a projector, the 2D screen is a projection panel, nine speakers 210 are disposed behind the projection panel, and the nine speakers 210 are arranged in a 3 × 3 matrix, so that sound can be output from the projection panel in the X-axis direction and the Y-axis direction.
It should be further noted that, by adopting the technical scheme of the application, household electronic equipment, such as a television, a mobile phone, a notebook computer and the like, does not need to be provided with a plurality of loudspeakers in the three-dimensional space of a user to feel the stereoscopic impression of sound like a movie theater, and the application realizes the sound production conversion from the three-dimensional space to the two-dimensional plane by expanding the loudspeakers in the X-axis direction and the Y-axis direction on the 2D screen of the target to be measured, so that the user can achieve the visual experience same as that of the movie theater when watching a movie on the 2D screen.
Note that each speaker 210 is a horn. Of course, more advanced sound generating devices may be used for each speaker 210, for example, each speaker is an activator type speaker, which is a device for converting an electronic signal into a physical motion, and the quality of the sound signal generated by this type of speaker is better.
It should be noted that a space is provided between each two adjacent speakers 210. Thus, the interval is arranged between two adjacent loudspeakers 210, and the sound production quality of the sound system 200 can be greatly improved.
It should be noted that the central processing module 100 is a CPU. Thus, the CPU 100 may be a CPU of the target to be detected, and a preset transfer function relationship is stored therein. The external CPU is connected with the CPU in the target to be detected, and the preset transfer function relation is stored in the external CPU.
The Y-axis audio reproduction method and the Y-axis audio reproduction system have the advantages that the sound system comprises nine loudspeakers, at least two loudspeakers are positioned in the X-axis direction of the two-dimensional plane of the target to be detected, at least one loudspeaker is positioned in the Y-axis direction of the two-dimensional plane of the target to be detected, the central processing module obtains the position coordinate source value and the sound value of the two channels, the position coordinate source value of the two channels is disassembled to form the position coordinate target value set according to the preset conversion function relation, and finally the position coordinate target value set is output through the corresponding loudspeakers.
The above embodiments only express a few embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. A Y-axis audio reproduction method, comprising:
step S01, acquiring a binaural position coordinate source value and a volume value of the target to be detected, wherein the binaural position coordinate source value comprises a left vocal position coordinate source value and a right vocal position coordinate source value;
step S02, according to the two-channel position coordinate source value and the volume value, according to a preset conversion function relationship, the two-channel position coordinate source value is disassembled to form a position coordinate target value set, wherein the position coordinate target value set comprises nine position coordinate target values;
and step S03, correspondingly outputting nine position coordinate target values through each loudspeaker located in the X-axis direction and the Y-axis direction of the two-dimensional plane of the object to be measured.
2. The Y-axis audio reproduction method according to claim 1, wherein the predetermined transfer function relationship is specifically:
wherein, XL(n) is the source value of the left channel position coordinates, XR(N) is the right channel position coordinate source value, N is the average value of the sum of the left channel position coordinate source value and the right channel position coordinate source value, k is the volume value, CM (N),LM (n), RM (n), LH (n), LL (n), CH (n), CL (n), RH (n), RL (n) are nine of the position coordinate target values.
3. A Y-axis audio reproducing system adopting the Y-axis audio reproducing method according to claim 1, comprising:
the central processing module is used for acquiring the two-channel position coordinate source value and the volume value of the target to be detected, and disassembling the two-channel position coordinate source value to form the position coordinate target value set according to the preset conversion function relationship, wherein the position coordinate target value set comprises nine position coordinate target values; and
the sound system comprises nine loudspeakers, at least two loudspeakers are positioned in the X-axis direction of the two-dimensional plane of the object to be measured, at least one loudspeaker is positioned in the Y-axis direction of the two-dimensional plane of the object to be measured, and each loudspeaker is used for outputting each position coordinate target value in a one-to-one correspondence mode.
4. The Y-axis audio reproduction system of claim 3, wherein nine speakers are disposed in the 2D screen of the object to be measured, and the nine speakers are arranged in a 3 x 3 matrix.
5. The Y-axis audio reproduction system of claim 3, wherein each of the speakers is a horn.
6. The Y-axis audio reproduction system of claim 3, wherein each of the speakers is an activator speaker.
7. The Y-axis audio reproduction system of claim 3, wherein a space is provided between each of two adjacent speakers.
8. The Y-axis audio reproduction system of claim 3, wherein the central processing module is a CPU.
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