CN112104952B - Panoramic sound audio system applied to 720-degree spherical screen panoramic cinema - Google Patents
Panoramic sound audio system applied to 720-degree spherical screen panoramic cinema Download PDFInfo
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- CN112104952B CN112104952B CN202011298711.3A CN202011298711A CN112104952B CN 112104952 B CN112104952 B CN 112104952B CN 202011298711 A CN202011298711 A CN 202011298711A CN 112104952 B CN112104952 B CN 112104952B
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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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- 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
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/162—Selection of materials
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
- G10L19/16—Vocoder architecture
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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
- H04R5/04—Circuit arrangements, e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
- H04S7/30—Control circuits for electronic adaptation of the sound field
- H04S7/308—Electronic adaptation dependent on speaker or headphone connection
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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
- H04R2205/024—Positioning of loudspeaker enclosures for spatial sound reproduction
Abstract
The embodiment of the application provides a panoramic sound audio system applied to a 720-degree spherical screen panoramic cinema. The panoramic sound audio playing environment is arranged in the panoramic cinema, the panoramic sound audio system comprises a plurality of audio playing groups, the audio playing groups are respectively arranged in the preset direction of the audio playing environment to play audio signals, and the audio signals played by the audio playing groups form a sound field surrounding audiences. In an audio playing environment, the panoramic sound audio system can effectively improve the quality of audio output, form a high-quality sound field surrounding audiences, and bring better panoramic sound auditory experience of the audiences when the audiences live in the environment on the premise of effectively ensuring the audio playing quality of the audio playing devices included in the audio playing group.
Description
Technical Field
The embodiment of the application relates to the technical field of audio sound, in particular to a panoramic sound audio system applied to a 720-degree spherical screen panoramic cinema.
Background
The rapid development of audio technology greatly enriches the life experience of consumers, such as watching movies is one of the favorite entertainment items of consumers today, and for consumers, movie theaters with good viewing experience are selected. The factors influencing the viewing experience include the visual effect of playing the film and the auditory effect, and the integration of the auditory effect and the visual effect of the panoramic sound can enable the audience to have a better feeling of personally seeing the scene. Therefore, it is desirable to provide a technical solution that can provide better panoramic acoustic hearing effect for the audience. In addition, the quality of the audio playback device in the theater may also affect the hearing experience of the audience. Therefore, how to improve the panoramic sound hearing effect of the audience becomes a technical problem to be solved urgently at present on the premise of effectively ensuring the audio playing quality of the audio playing device.
Disclosure of Invention
In view of the above, one of the technical problems to be solved by the embodiments of the present application is to provide a panoramic sound audio system applied to a 720-degree dome panoramic cinema, which can improve the hearing effect of the panoramic sound of the audience on the premise of effectively ensuring the audio playing quality of the audio playing device.
The embodiment of the application provides a be applied to panorama sound audio system of 720 degrees ball curtain panoramic cinema, be provided with the audio playback environment in the panoramic cinema, panorama sound audio system includes: a plurality of audio playing groups respectively arranged in a predetermined direction in the audio playing environment to play audio signals, the audio signals played by the audio playing groups forming a sound field surrounding viewers, wherein the audio playing groups include a first audio playing group, a second audio playing group and a third audio playing group, the first audio playing group, the second audio playing group and the third audio playing group are respectively used for playing audio signals with predetermined sound effects, wherein the first audio playing group includes at least one first audio playing device, the second audio playing group includes at least one second audio playing device, the third audio playing group includes at least one third audio playing device, the at least one first audio playing device is used for playing audio signals with first sound effects, the at least one second audio playing device is used for playing audio signals with second sound effects, the at least one third audio playing device is used for playing audio signals with third sound effects, wherein the first audio playing device, the second audio playing device and the third audio playing device all comprise: sound production unit, sound production unit include the sound production main part, with the cavity of sound production main part intercommunication, and set up in sound absorbing material in the cavity, the cavity is by roof, bottom plate and being located the roof with side between the bottom plate encloses into, the roof the bottom plate with all be provided with the opening on the side board, wherein, be provided with magnetic induction coil and vibration device in the sound production main part, magnetic induction coil is used for when receiving the audio signal who decodes, according to the audio signal who decodes produces drive power, in order to drive vibration device vibration sound production, the position that the cavity was located with the sound production direction of sound production main part is opposite, sound absorbing material includes at least one of following: organic fiber sound absorbing materials, inorganic foam sound absorbing materials, foam plastic sound absorbing materials; the processing unit is electrically connected with the sound production unit and is used for demultiplexing the audio signal frames to obtain the demultiplexed audio signal frames; performing Huffman decoding on the de-multiplexed audio signal frame to obtain a Huffman decoding result of the de-multiplexed audio signal frame; performing sideband signal decoding on the demultiplexed audio signal frames to obtain sideband signal decoding results of the demultiplexed audio signal frames; inverse quantizing the Huffman decoding result and the sideband signal decoding result of the de-multiplexed audio signal frame to obtain an inverse quantization result of the de-multiplexed audio signal frame; performing IMDCT transform on the inverse quantization result of the demultiplexed audio signal frame to obtain a transformed audio signal frame; inputting the transformed audio signal frame into an inverse 32-subband filter bank for processing to obtain a decoding signal of the audio signal frame; and the universal IO interface, the PC interface, the Ethernet interface, the USB interface, the JTAG interface, the reset circuit, the power circuit and the memory are in communication connection with the processing unit.
Optionally, in an embodiment of the present application, a curved display screen is disposed in the panoramic theater, and the at least one first audio playing device is disposed in a first predetermined direction in the audio playing environment, where the first predetermined direction is right in front of the curved display screen.
Optionally, in an embodiment of the present application, the at least one second audio playing device is disposed in a second predetermined direction in the audio playing environment, where the second predetermined direction is right in front of the curved display screen.
Optionally, in an embodiment of the present application, the number of the third audio playing devices is multiple, a plurality of the third audio playing devices are set in a third predetermined direction, a fourth predetermined direction and a fifth predetermined direction in the audio playing environment in groups, the third predetermined direction is the left-right direction of the curved surface display screen, the fourth predetermined direction is the front-back direction of the curved surface display screen, and the fifth predetermined direction is the up-down direction of the curved surface display screen.
Optionally, in an embodiment of the present application, the curved display screen is in a capsule shape, and the plurality of third audio playback devices are disposed along a circumferential direction of the curved display screen in the capsule shape.
Optionally, in an embodiment of the present application, a distance between two adjacent third audio playback devices in the transverse circumferential direction is 1.8 meters, or a distance between two adjacent third audio playback devices in the longitudinal circumferential direction is 7 meters.
Optionally, in an embodiment of the present application, the number of the first audio playing devices is 5, the number of the second audio playing devices is 5, and the number of the third audio playing devices is 20.
Optionally, in an embodiment of the present application, the first sound effect is a low-frequency sound effect, the second sound effect is a front full-frequency sound effect, and the third sound effect is a surround full-frequency sound effect.
Optionally, the panoramic sound audio system further comprises: the first control device is in communication connection with the at least one first audio playing device and is used for receiving an audio playing control instruction aiming at the at least one first audio playing device and controlling part of the at least one first audio playing device to play audio signals with first sound effects according to the audio playing control instruction.
Optionally, the first control device is further configured to receive a volume adjustment instruction for the at least one first audio playing device, and adjust the volume of the audio signal with the first sound effect played by the at least one first audio playing device according to the volume adjustment instruction.
Optionally, the first control device is further configured to receive a sound effect adjusting instruction for the at least one first audio playing device, and adjust a sound effect of the audio signal played by the at least one first audio playing device according to the sound effect adjusting instruction.
Optionally, the panoramic sound audio system further comprises: and the second control device is in communication connection with the at least one second audio playing device and is used for receiving an audio playing control instruction aiming at the at least one second audio playing device and controlling part of the at least one second audio playing device to play audio signals with second sound effects according to the audio playing control instruction.
Optionally, the second control device is further configured to receive a volume adjustment instruction for the at least one second audio playing device, and adjust the volume of the audio signal with the second sound effect played by the at least one second audio playing device according to the volume adjustment instruction.
Optionally, the second control device is further configured to receive a sound effect adjustment instruction for the at least one second audio playing device, and adjust the sound effect of the audio signal played by the at least one second audio playing device according to the sound effect adjustment instruction.
Optionally, the panoramic sound audio system further comprises: and the third control device is in communication connection with the at least one third audio playing device and is used for receiving an audio playing control instruction aiming at the at least one third audio playing device and controlling part of the third audio playing devices in the at least one third audio playing device to play audio signals with third sound effects according to the audio playing control instruction.
Optionally, the third control device is further configured to receive a volume adjustment instruction for the at least one third audio playing device, and adjust the volume of the audio signal with the third sound effect played by the at least one third audio playing device according to the volume adjustment instruction.
Optionally, the third control device is further configured to receive a sound effect adjusting instruction for the at least one third audio playing device, and adjust the sound effect of the audio signal played by the at least one third audio playing device according to the sound effect adjusting instruction.
Optionally, the panoramic sound audio system further comprises: and the terminal equipment is in communication connection with the first control device and is used for receiving a first operation aiming at a first control in an application program of the terminal equipment and sending a corresponding instruction to the first control device according to the first operation.
Optionally, the terminal device is further communicatively connected to a second control apparatus, and is further configured to receive a second operation for a second control in an application program of the terminal device, and send a corresponding instruction to the second control apparatus according to the second operation.
Optionally, the terminal device is further communicatively connected to a third control device, and is further configured to receive a third operation for a third control in the application program of the terminal device, and send a corresponding instruction to the third control device according to the third operation.
The panoramic audio system applied to the 720-degree dome panoramic theater comprises a plurality of audio playing groups, wherein the audio playing groups are respectively arranged in the predetermined direction of the audio playing environment to play audio signals, and the audio signals played by the audio playing groups form a sound field surrounding audiences, wherein the audio playing groups comprise a first audio playing group, a second audio playing group and a third audio playing group, the first audio playing group, the second audio playing group and the third audio playing group are respectively used for playing audio signals with predetermined sound effects, wherein the first audio playing group comprises at least one first audio playing device, the second audio playing group comprises at least one second audio playing device, the third audio playing group includes at least one third audio playing device, the at least one first audio playing device is used for playing audio signals with first sound effects, the at least one second audio playing device is used for playing audio signals with second sound effects, the at least one third audio playing device is used for playing audio signals with third sound effects, wherein the first audio playing device, the second audio playing device and the third audio playing device all include: sound production unit, sound production unit include the sound production main part, with the cavity of sound production main part intercommunication, and set up in sound absorbing material in the cavity, the cavity is by roof, bottom plate and being located the roof with side between the bottom plate encloses into, the roof the bottom plate with all be provided with the opening on the side board, wherein, be provided with magnetic induction coil and vibration device in the sound production main part, magnetic induction coil is used for when receiving the audio signal who decodes, according to the audio signal who decodes produces drive power, in order to drive vibration device vibration sound production, the position that the cavity was located with the sound production direction of sound production main part is opposite, sound absorbing material includes at least one of following: organic fiber sound absorbing materials, inorganic foam sound absorbing materials, foam plastic sound absorbing materials; the processing unit is electrically connected with the sound production unit and is used for demultiplexing the audio signal frames to obtain the demultiplexed audio signal frames; performing Huffman decoding on the de-multiplexed audio signal frame to obtain a Huffman decoding result of the de-multiplexed audio signal frame; performing sideband signal decoding on the demultiplexed audio signal frames to obtain sideband signal decoding results of the demultiplexed audio signal frames; inverse quantizing the Huffman decoding result and the sideband signal decoding result of the de-multiplexed audio signal frame to obtain an inverse quantization result of the de-multiplexed audio signal frame; performing IMDCT transform on the inverse quantization result of the demultiplexed audio signal frame to obtain a transformed audio signal frame; inputting the transformed audio signal frame into an inverse 32-subband filter bank for processing to obtain a decoding signal of the audio signal frame; and the universal IO interface, the PC interface, the Ethernet interface, the USB interface, the JTAG interface, the reset circuit, the power circuit and the memory are in communication connection with the processing unit. In the audio playing environment, through this panorama sound audio system, can effectively guarantee under the prerequisite of audio playback quality of audio playback device, improve spectator's panorama sound auditory effect, also can effectively improve the quality of audio output, form the high-quality sound field that encircles spectator, bring the sense of hearing of better experience of feeling of oneself for spectator.
Drawings
Some specific embodiments of the present application will be described in detail hereinafter by way of illustration and not limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic structural diagram of a panoramic audio system applied to a 720-degree dome panoramic theater according to an embodiment of the present application;
FIG. 2a is a schematic exterior view of a panoramic theater according to a second embodiment of the present application;
FIG. 2b is a view of one viewing angle of a panoramic theater according to the second embodiment shown in FIG. 2 a;
FIG. 2c is a view of another viewing angle of the panoramic theater according to the second embodiment shown in FIG. 2 a;
fig. 2d is a view of still another viewing angle of the panoramic theater according to the second embodiment shown in fig. 2 a.
Detailed Description
It is not necessary for any particular embodiment of the invention to achieve all of the above advantages at the same time.
In order to make those skilled in the art better understand the technical solutions in the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application shall fall within the scope of the protection of the embodiments in the present application.
The following further describes specific implementations of embodiments of the present application with reference to the drawings of the embodiments of the present application.
Fig. 1 is a schematic structural diagram of a panoramic audio system applied to a 720-degree dome panoramic theater according to an embodiment of the present application; as shown in fig. 1, an audio playing environment is provided in the panoramic theater, and the panoramic audio system includes: and the audio playing groups are respectively arranged in the preset direction in the audio playing environment to play audio signals, and the audio signals played by the audio playing groups form a sound field surrounding audiences.
The panoramic sound audio system is arranged in an audio playing environment, audio signals are played in the preset direction through a plurality of audio playing groups, the multiple audio playing groups are coordinated with one another, the appropriate sound effect is played at an appropriate angle, the panoramic sound hearing effect of audiences can be effectively improved, the quality of sound effect output can be effectively improved, a high-quality sound field surrounding the audiences is formed, and better hearing experience of feeling the audiences after the audiences feel the situation is brought.
Specifically, the audio playing group may include a first audio playing group, a second audio playing group, and a third audio playing group, where the first audio playing group, the second audio playing group, and the third audio playing group are respectively used for playing audio signals with predetermined sound effects. In this embodiment, the first audio playing group, the second audio playing group and the third audio playing group respectively play audio through audio playing devices capable of generating different sound effects, so as to form a sound field surrounding audiences in an audio playing environment at a low cost.
Further, the first audio playing group includes at least one first audio playing device 101, the second audio playing group includes at least one second audio playing device 102, the third audio playing group includes at least one third audio playing device 103, the at least one first audio playing device 101 is configured to play an audio signal with a first sound effect, the at least one second audio playing device 102 is configured to play an audio signal with the first sound effect, and the at least one third audio playing device 103 is configured to play an audio signal with a third sound effect.
In this embodiment, the first audio playing group forms a first sound effect through the audio signal played by the first audio playing device 101, the second audio playing group forms a second sound effect through the audio signal played by the second audio playing device 102, the third audio playing group forms a third sound effect through the audio signal played by the third audio playing device 103, and the combination of the first sound effect, the second sound effect and the third sound effect in the audio playing environment can form a high-quality audio playing effect.
Preferably, the first audio playing group plays the audio signal through the first audio playing device 101, and the formed first sound effect is a low-frequency sound effect; the second audio playing group plays the audio signals through the second audio playing device 102, and the formed second sound effect is a preposed full-frequency sound effect; the third audio playing group plays the audio signal through the third audio playing device 103, and the formed third sound effect is a surround full frequency sound effect. In the audio playing environment, the sound field surrounding audiences is formed by the combination of the low-frequency sound effect, the preposed full-frequency sound effect and the surrounding full-frequency sound effect, and better hearing experience is brought to the audiences.
In the present embodiment, the sound field surrounding the audience is formed by configuring the number of the plurality of first audio playing devices 101, the plurality of second audio playing devices 102, and the plurality of third audio playing devices 103. Such as: the quantity of first audio playback device 101 is 5, the quantity of second audio playback device 102 is 5, the quantity of third audio playback device 103 is 20, through the mutual coordination cooperation of the first audio playback device 101 of different quantity, second audio playback device 102 and third audio playback device 103, make the low frequency audio effect, the leading full frequency audio effect and encircle and make up in the audio playback environment full frequency audio effect, form the high quality sound field that encircles spectators, bring better hearing experience for spectators.
Further, by setting a plurality of first audio playback devices 101 in a first predetermined direction of the audio playback environment; the plurality of second audio playing devices 102 are arranged in a second predetermined direction of the audio playing environment; the plurality of third audio playing devices 103 are disposed in the third predetermined direction, the fourth predetermined direction and the fifth predetermined direction of the audio playing environment, so as to play audio from the front and back, the left and right, the upper and the lower of the audience in the audio playing environment, thereby forming a sound field around the audience, and generating a more realistic and shockable auditory experience.
In the present embodiment, in the coordinate system shown in fig. 1, the origin of the coordinate system is located at the center of the capsule-shaped curved display screen 104, the front-back direction of the curved display screen 104 is a direction parallel to the x-axis, the left-right direction of the curved display screen 104 is a direction parallel to the y-axis, the height direction (i.e., the up-down direction) of the curved display screen 104 is a direction parallel to the z-axis, the transverse circumferential direction is a circumferential direction around the x-axis parallel to the yz-plane, and the longitudinal circumferential direction is a circumferential direction around the y-axis parallel to the xz-plane.
In order to combine the audio effect and the visual effect in the audio playing environment to provide comprehensive audio and visual effect for the audience, in this embodiment, a curved display screen 104 is disposed in the panoramic theater, and the at least one first audio playing device 101 is disposed in a first predetermined direction in the audio playing environment, the first predetermined direction being right in front of the curved display screen 104; the at least one second audio playing device 102 is disposed in a second predetermined direction in the audio playing environment, where the second predetermined direction is right in front of the curved display screen 104; the plurality of third audio playing devices 103 are arranged in groups in a third predetermined direction, a fourth predetermined direction and a fifth predetermined direction in the audio playing environment, the third predetermined direction is a left-right direction of the curved surface display screen 104, the fourth predetermined direction is a front-back direction of the curved surface display screen 104, and the fifth predetermined direction is an up-down direction of the curved surface display screen 104. Through the visual effect of the curved surface display screen 104, the auditory effect formed by the first audio playing device 101 in the first predetermined direction, the second audio playing device 102 in the second predetermined direction, and the third audio playing device 103 in the third predetermined direction, the fourth predetermined direction, and the fifth predetermined direction is effectively matched, and finally, a more real and shocking sound field can be formed.
Here, when the viewer faces the curved display screen 104, the audio signal is played at the front right of the curved display screen 104 by at least one first audio playing device 102, for example, the first audio playing device 101 is a low frequency effect (for example, LFE) speaker to form a low frequency effect; playing an audio signal right in front of the curved display screen 104 through at least one second audio playing device 102, for example, the second audio playing device 102 is a left-right channel screen speaker and/or a center channel screen speaker to form a front full-frequency sound effect; through a plurality of third audio playback device 103 plays audio signal in spectator's left side, right side, rear side, top and below, for example, third audio playback device 103 is that the speaker is encircleed to the side wall, the speaker is encircleed to the back wall, the speaker is encircleed to the top and the speaker is encircleed to the bottom to form encircleing full frequency sound effect. And reasonably combining the low-frequency sound effect in the first preset direction, the preposed full-frequency sound effect in the second preset direction and the surrounding full-frequency sound effect in the third preset direction, the fourth preset direction and the fifth preset direction to form an optimal sound field around the audience. Preferably, the first audio playing device 101 is a bass sound box, the number of which is specifically 5, and further 5 bass sound boxes are disposed at the front right of the curved display screen 104, and a single woofer in each bass sound box is 18 inches. The second audio playing device 102 is a front full-frequency speaker, the number of the front full-frequency speakers may be 5, the 5 front full-frequency speakers are placed in front of the curved display screen 104, and when each front full-frequency speaker plays an audio signal, a single speaker is 105 decibels.
In this embodiment, the curved display screen 104 is in a capsule shape, the plurality of third audio playback devices 103 are arranged along the circumferential direction of the curved display screen 104 in the capsule shape, the interval between every two adjacent third audio playback devices 103 in the transverse circumferential direction is 1.8 meters, and the interval between every two adjacent third audio playback devices 103 in the longitudinal circumferential direction is 7 meters.
The third audio playing device 103 may be a surround full-band passive speaker. The 20 surrounding full-frequency passive loudspeakers are divided into 5 groups, and each group comprises 4 surrounding full-frequency passive loudspeakers, wherein the 4 surrounding full-frequency passive loudspeakers in each group are uniformly distributed along the transverse circumferential direction of the capsule-shaped curved surface display screen 104, and the longitudinal circumferential interval of every two adjacent surrounding full-frequency passive loudspeakers is 7 meters; the 5 groups of surrounding full-frequency passive loudspeakers are arranged along the longitudinal circumference of the capsule-shaped curved surface display screen 104, the transverse circumferential interval between every group of third audio playing devices 103 (comprising 4 surrounding full-frequency passive loudspeakers) is 1.8 meters, and audio signals are played all around, about and up and down of audiences.
In this embodiment, a capsule space is formed in the cinema, the bass sound boxes for playing the low-frequency sound effect are arranged in the right front of the curved surface display screen 104, the front full-frequency sound boxes for playing the front full-frequency sound effect are arranged in the front of the curved surface display screen 104, and the 20 playing surround full-frequency passive loudspeakers for playing the full-frequency sound effect are arranged along the circumferential direction of the capsule space.
In an optional embodiment, the panoramic sound audio system further comprises: the first control device is in communication connection with the at least one first audio playing device 101, and is configured to receive an audio playing control instruction for the at least one first audio playing device, and control a part of the at least one first audio playing device to play an audio signal with a first sound effect according to the audio playing control instruction. Therefore, the first controller which is in communication connection with the at least one first audio playing device can control a part of the at least one first audio playing device to play the audio signals with the first sound effect. It should be understood that the above description is only exemplary, and the embodiments of the present application are not limited in this respect.
In this embodiment, the first controller may be a voice chip or a processor with sound signal and data processing capability and control function, and may specifically be a central processing unit, and may also be other general processors, digital signal processors, application specific integrated circuits, off-the-shelf programmable gate arrays or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. It should be understood that the above description is only exemplary, and the embodiments of the present application are not limited in this respect.
In an optional specific embodiment, the first control device is further configured to receive a volume adjustment instruction for the at least one first audio playing device, and adjust a volume of the at least one first audio playing device playing the audio signal with the first sound effect according to the volume adjustment instruction. Therefore, the volume of the audio signal with the first sound effect played by the at least one first audio playing device can be adjusted through the first controller in communication connection with the at least one first audio playing device. It should be understood that the above description is only exemplary, and the embodiments of the present application are not limited in this respect.
In an optional specific embodiment, the first control device is further configured to receive a sound effect adjustment instruction for the at least one first audio playing device, and adjust the sound effect of the audio signal played by the at least one first audio playing device according to the sound effect adjustment instruction. Therefore, the sound effect of the audio signal played by the at least one first audio playing device can be adjusted through the first controller in communication connection with the at least one first audio playing device. It should be understood that the above description is only exemplary, and the embodiments of the present application are not limited in this respect.
In an optional embodiment, the panoramic sound audio system further comprises: and the terminal equipment is in communication connection with the first control device and is used for receiving a first operation aiming at a first control in an application program of the terminal equipment and sending a corresponding instruction to the first control device according to the first operation. By this, through the terminal device which is connected in communication with the first control apparatus, a corresponding instruction can be transmitted to the first control apparatus. It should be understood that the above description is only exemplary, and the embodiments of the present application are not limited in this respect.
In this embodiment, the terminal device may be a terminal facing a user and capable of interacting with the user, such as a mobile phone, a notebook, a computer, an iPad, an intelligent sound, and the like. The first control device and the terminal device may be connected by a wired or wireless network, and specifically may be connected by communication through mobile networks such as GSM, GPRS, and LTE, or may be connected by communication through bluetooth, WIFI, infrared, and the like. It should be understood that the above description is only exemplary, and the embodiments of the present application are not limited in this respect.
In an optional embodiment, the panoramic sound audio system further comprises: and the second control device is in communication connection with the at least one second audio playing device 102, and is configured to receive an audio playing control instruction for the at least one second audio playing device, and control a part of the at least one second audio playing device to play an audio signal with a second sound effect according to the audio playing control instruction. Therefore, the second controller which is in communication connection with the at least one second audio playing device can control part of the at least one second audio playing device to play the audio signals with the second sound effect. It should be understood that the above description is only exemplary, and the embodiments of the present application are not limited in this respect.
In this embodiment, the second controller may be a voice chip or a processor with voice signal and data processing capability and control function, and may specifically be a central processing unit, and may also be other general processors, digital signal processors, application specific integrated circuits, off-the-shelf programmable gate arrays or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. It should be understood that the above description is only exemplary, and the embodiments of the present application are not limited in this respect.
In an optional specific embodiment, the second control device is further configured to receive a volume adjustment instruction for the at least one second audio playing device, and adjust the volume of the audio signal with the second sound effect played by the at least one second audio playing device according to the volume adjustment instruction. Therefore, the volume of the audio signal with the second sound effect played by the at least one second audio playing device can be adjusted through the second controller which is in communication connection with the at least one second audio playing device. It should be understood that the above description is only exemplary, and the embodiments of the present application are not limited in this respect.
In an optional specific embodiment, the second control device is further configured to receive a sound effect adjustment instruction for the at least one second audio playing device, and adjust the sound effect of the audio signal played by the at least one second audio playing device according to the sound effect adjustment instruction. Therefore, the sound effect of the audio signal played by the at least one second audio playing device can be adjusted through the second controller in communication connection with the at least one second audio playing device. It should be understood that the above description is only exemplary, and the embodiments of the present application are not limited in this respect.
In an optional specific embodiment, the terminal device is further communicatively connected to a second control apparatus, and is further configured to receive a second operation for a second control in an application program of the terminal device, and send a corresponding instruction to the second control apparatus according to the second operation. Thereby, through the terminal equipment which is connected with the second control device in a communication way, corresponding instructions can be sent to the second control device. It should be understood that the above description is only exemplary, and the embodiments of the present application are not limited in this respect.
In an optional embodiment, the panoramic sound audio system further comprises: and a third control device, communicatively connected to the at least one third audio playing device 103, configured to receive an audio playing control instruction for the at least one third audio playing device, and control a part of the at least one third audio playing device to play an audio signal with a third sound effect according to the audio playing control instruction. Therefore, the third control device which is connected with the at least one third audio playing device in a communication mode can control part of the at least one third audio playing device to play the audio signals with the third sound effect. It should be understood that the above description is only exemplary, and the embodiments of the present application are not limited in this respect.
In this embodiment, the third controller may be a voice chip or a processor with sound signal and data processing capability and control function, and may specifically be a central processing unit, and may also be other general processors, digital signal processors, application specific integrated circuits, off-the-shelf programmable gate arrays or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. It should be understood that the above description is only exemplary, and the embodiments of the present application are not limited in this respect.
In an optional specific embodiment, the third control device is further configured to receive a volume adjustment instruction for the at least one third audio playing device, and adjust a volume of the audio signal with the third sound effect played by the at least one third audio playing device according to the volume adjustment instruction. Therefore, the volume of the audio signal with the third sound effect played by the at least one third audio playing device can be adjusted through the third control device which is in communication connection with the at least one third audio playing device. It should be understood that the above description is only exemplary, and the embodiments of the present application are not limited in this respect.
In an optional specific embodiment, the third control device is further configured to receive a sound effect adjusting instruction for the at least one third audio playing device, and adjust the sound effect of the audio signal played by the at least one third audio playing device according to the sound effect adjusting instruction. Therefore, the sound effect of the audio signal played by the at least one third audio playing device can be adjusted through the third control device which is in communication connection with the at least one third audio playing device. It should be understood that the above description is only exemplary, and the embodiments of the present application are not limited in this respect.
In an optional specific embodiment, the terminal device is further communicatively connected to a third control device, and is further configured to receive a third operation on a third control in an application program of the terminal device, and send a corresponding instruction to the third control device according to the third operation. Thereby, by means of the terminal device being communicatively connected to the third control means, a corresponding instruction can be transmitted to the third control means. It should be understood that the above description is only exemplary, and the embodiments of the present application are not limited in this respect.
In an optional embodiment, the first audio playing device, the second audio playing device and the third audio playing device each include: sound production unit, sound production unit include the sound production main part, with the cavity of sound production main part intercommunication, and set up in sound absorbing material in the cavity, the cavity is by roof, bottom plate and being located the roof with side between the bottom plate encloses into, the roof the bottom plate with all be provided with the opening on the side board, wherein, be provided with magnetic induction coil and vibration device in the sound production main part, magnetic induction coil is used for when receiving the audio signal who decodes, according to the audio signal who decodes produces drive power, in order to drive vibration device vibration sound production, the position that the cavity was located with the sound production direction of sound production main part is opposite, sound absorbing material includes at least one of following: organic fiber sound absorbing materials, inorganic foam sound absorbing materials, foam plastic sound absorbing materials; the processing unit is electrically connected with the sound production unit and is used for demultiplexing the audio signal frames to obtain the demultiplexed audio signal frames; performing Huffman decoding on the de-multiplexed audio signal frame to obtain a Huffman decoding result of the de-multiplexed audio signal frame; performing sideband signal decoding on the demultiplexed audio signal frames to obtain sideband signal decoding results of the demultiplexed audio signal frames; inverse quantizing the Huffman decoding result and the sideband signal decoding result of the de-multiplexed audio signal frame to obtain an inverse quantization result of the de-multiplexed audio signal frame; performing IMDCT transform on the inverse quantization result of the demultiplexed audio signal frame to obtain a transformed audio signal frame; inputting the transformed audio signal frame into an inverse 32-subband filter bank for processing to obtain a decoding signal of the audio signal frame; and the universal IO interface, the PC interface, the Ethernet interface, the USB interface, the JTAG interface, the reset circuit, the power circuit and the memory are in communication connection with the processing unit. Therefore, in the audio playing environment, the panoramic sound hearing effect of audiences can be improved on the premise of effectively ensuring the audio playing quality of the audio playing device, the quality of sound effect output can be effectively improved, a high-quality sound field surrounding the audiences is formed, and better hearing experience of feeling the audience is brought to the audiences. It should be understood that the above description is only exemplary, and the embodiments of the present application are not limited in this respect.
FIG. 2a is a schematic exterior view of a panoramic theater according to a second embodiment of the present application; as shown in fig. 2a, the panoramic theater is in a capsule shape, and the frame of the panoramic theater is formed by connecting a plurality of rectangular square tubes, and in this embodiment, the frame of the panoramic theater is formed by fixedly connecting rectangular square tubes with a length of 120 mm, a width of 60 mm, and a wall thickness of 4 mm. The frame of the panoramic cinema formed by connecting the rectangular square tubes has better structural stability, and materials are saved. A better scheme is that the rectangular square tubes are detachably connected, so that the rectangular square tubes can be conveniently installed and maintained, and can be detached and moved in the later period. Here, the material constituting the panoramic theater frame is not limited, and other shapes such as a circular tube, an angle iron, an i-steel, an H-steel, etc. may be used in addition to the rectangular square tube.
FIG. 2b is a view of one viewing angle of a panoramic theater according to the second embodiment shown in FIG. 2 a; FIG. 2c is a view of another viewing angle of the panoramic theater according to the second embodiment shown in FIG. 2 a; FIG. 2d is a view of yet another viewing angle of the panoramic theater according to the second embodiment shown in FIG. 2 a; as shown in fig. 2b, 2c and 2d, in fig. 1 the curved display screen occupies half of the capsule. As shown in fig. 2b, 2c and 2d, a first audio playback device 101, a second audio playback device 102 and a third audio playback device 103 are provided on the frame of the panoramic theater. The first audio playing device 101 is an LFE speaker (model may be JBL 4642A), and is mounted on a frame of the panoramic theater in a platform mounting manner, where a length of a mounting platform of the LFE speaker may be 1524 mm, a width of the mounting platform may be 1219 mm, a height of the mounting platform may be 610 mm, and a weight of the mounting platform is 200 kg. The second audio playback device 102 includes left and right channel screen speakers and/or center channel screen speakers. The left and right sound channel screen loudspeakers (the model can be JBL C211) are installed on the frame of the panoramic cinema in a hanging installation mode, the length of a hanging support can be 78.74 millimeters, the width can be 101.6 millimeters, the height can be 30.48 millimeters, and the weight is 35.8 kilograms. The center channel screen loudspeaker (the model can be JBL C211) can also be installed on the frame of the panoramic cinema in a hanging installation mode, the hanging support is located at the center of the capsule-shaped panoramic cinema as far as possible, the length of the hanging support can be 8.74 millimeters, the width can be 101.6 millimeters, the height can be 30.48 millimeters, and the weight is 35.8 kilograms. The third audio playback device 103 comprises side wall surround speakers, rear wall surround speakers, top surround speakers and bottom surround speakers. The side wall surround speaker (the model can be JBL 8320) can also be installed on the frame of panoramic cinema by adopting a hanging installation mode, the length of the hanging support can be 406 mm, the width can be 343 mm, the height can be 224 mm, and the weight is 5 kg. The back wall surrounds speaker (the model can be for JBL 8320) and also can adopt the mode of hanging the installation to install on the frame of panoramic cinema, and it has certain distance to hang the support as far as possible and last row of spectator, for example, it can the antedisplacement not have the position of hanging, and the length of hanging the support can be 406 millimeters, and the width can be 343 millimeters, and the height can be 224 millimeters, and weight is 5 kilograms. The top surround speaker (model JBL 8320 can also adopt the mode of hanging the installation to install on the frame of panoramic cinema), and the length of hanging the support can be 406 millimeters, and the width can be 343 millimeters, and the height can be 224 millimeters, and the weight is 5 kilograms. The bottom surround speaker (model JBL STX 812M) can be mounted by building a floor platform bracket, which can be 571 mm long, 355 mm wide, 264 mm high and 19 kg heavy.
In the cinema of this embodiment, the panoramic cinema further has a sound-insulating wall having a length of 650 mm, a width of 650 mm and a height of 100 mm, and the sound-insulating wall is filled with glass wool in the middle thereof, and the outer vertical surface of the sound-insulating wall is made of a decorative cloth, thereby preventing noise interference from being generated to the outside.
In addition, a distributor and a cable are also configured in the panoramic cinema according to needs to establish the connection relationship between the sound source and the audio playing device.
Of course, it is not necessary for any particular embodiment of the present application to achieve all of the above advantages at the same time.
The expressions "first", "second", "said first" or "said second" as used in various embodiments of the present application may modify various components irrespective of order and/or importance, but these expressions do not limit the respective components. The foregoing description is only for the purpose of distinguishing elements from other elements. For example, the first user equipment and the second user equipment represent different user equipment, although both are user equipment. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present disclosure.
In addition, the expressions "front", "rear", "left" and "right" used in the various embodiments of the present application are only one relative positional relationship without departing from the scope of the present disclosure.
While the preferred embodiments of the present application have been described, additional variations and modifications will occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following appended claims be interpreted as including all such alterations and modifications as fall within the true spirit and scope of the application. It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (17)
1. The utility model provides a be applied to panorama sound audio system of 720 degrees ball curtain panoramic cinema, its characterized in that, be provided with the audio playback environment in the panoramic cinema, panorama sound audio system includes: a plurality of audio playing groups respectively arranged in a predetermined direction in the audio playing environment to play audio signals, the audio signals played by the plurality of audio playing groups forming a sound field around a viewer,
wherein the audio playing group comprises a first audio playing group, a second audio playing group and a third audio playing group, the first audio playing group, the second audio playing group and the third audio playing group are respectively used for playing audio signals with preset sound effects,
wherein the first audio playing group comprises at least one first audio playing device, the second audio playing group comprises at least one second audio playing device, the third audio playing group comprises at least one third audio playing device, the at least one first audio playing device is used for playing audio signals with first sound effects, the at least one second audio playing device is used for playing audio signals with second sound effects, the at least one third audio playing device is used for playing audio signals with third sound effects,
wherein, the first audio playing device, the second audio playing device and the third audio playing device all include: sound production unit, sound production unit include the sound production main part, with the cavity of sound production main part intercommunication, and set up in sound absorbing material in the cavity, the cavity is by roof, bottom plate and being located the roof with side between the bottom plate encloses into, the roof the bottom plate with all be provided with the opening on the side board, wherein, be provided with magnetic induction coil and vibration device in the sound production main part, magnetic induction coil is used for when receiving the audio signal who decodes, according to the audio signal who decodes produces drive power, in order to drive vibration device vibration sound production, the position that the cavity was located with the sound production direction of sound production main part is opposite, sound absorbing material includes at least one of following: organic fiber sound absorbing materials, inorganic foam sound absorbing materials, foam plastic sound absorbing materials; the processing unit is electrically connected with the sound production unit and is used for demultiplexing the audio signal frames to obtain the demultiplexed audio signal frames; performing Huffman decoding on the de-multiplexed audio signal frame to obtain a Huffman decoding result of the de-multiplexed audio signal frame; performing sideband signal decoding on the demultiplexed audio signal frames to obtain sideband signal decoding results of the demultiplexed audio signal frames; inverse quantizing the Huffman decoding result and the sideband signal decoding result of the de-multiplexed audio signal frame to obtain an inverse quantization result of the de-multiplexed audio signal frame; performing IMDCT transform on the inverse quantization result of the demultiplexed audio signal frame to obtain a transformed audio signal frame; inputting the transformed audio signal frame into an inverse 32-subband filter bank for processing to obtain a decoding signal of the audio signal frame; and a general IO interface, a PC interface, an Ethernet interface, a USB interface, a JTAG interface, a reset circuit, a power circuit and a memory which are in communication connection with the processing unit,
wherein the panoramic sound audio system further comprises: the first control device is in communication connection with the at least one first audio playing device and is used for receiving an audio playing control instruction aiming at the at least one first audio playing device and controlling part of the at least one first audio playing device to play audio signals with first sound effects according to the audio playing control instruction,
wherein, the first control device is further configured to receive a volume adjustment instruction for the at least one first audio playing device, and adjust the volume of the audio signal with the first sound effect played by the at least one first audio playing device according to the volume adjustment instruction,
wherein, the first control device is also used for receiving a sound effect adjusting instruction aiming at the at least one first audio playing device and adjusting the sound effect of the audio signal played by the at least one first audio playing device according to the sound effect adjusting instruction,
the first control device is a voice chip or a processor with sound signal and data processing capability and control function, and comprises a central processing unit, a digital signal processor, an application specific integrated circuit, an off-the-shelf programmable gate array or a programmable logic device, a discrete gate or a transistor logic device and a discrete hardware component.
2. The panoramic sound audio system of claim 1, wherein a curved display screen is disposed in the panoramic theater, and the at least one first audio playback device is disposed in a first predetermined orientation in the audio playback environment, the first predetermined orientation being a front right of the curved display screen.
3. The panoramic sound audio system of claim 2, wherein the at least one second audio playback device is disposed in a second predetermined direction in the audio playback environment, the second predetermined direction being directly in front of the curved display screen.
4. The panoramic sound audio system according to claim 2, wherein the number of the third audio playback devices is plural, the plural third audio playback devices are grouped in a third predetermined direction, a fourth predetermined direction and a fifth predetermined direction in the audio playback environment, the third predetermined direction is a left-right direction of the curved display screen, the fourth predetermined direction is a front-back direction of the curved display screen, and the fifth predetermined direction is an up-down direction of the curved display screen.
5. The panoramic sound audio system according to claim 4, wherein the curved display screen is capsule-shaped, and the plurality of third audio playback devices are arranged along a circumferential direction of the capsule-shaped curved display screen.
6. The panoramic sound audio system according to claim 5, wherein the interval between two adjacent third audio playback devices in the transverse direction and the circumferential direction is 1.8 meters, and/or the interval between two adjacent third audio playback devices in the longitudinal direction and the circumferential direction is 7 meters.
7. The panoramic sound audio system of claim 6, wherein the number of the first audio playback devices is 5, the number of the second audio playback devices is 5, and the number of the third audio playback devices is 20.
8. The panoramic sound audio system of any one of claims 1 to 7, wherein the first audio effect is a low frequency audio effect, the second audio effect is a front full frequency audio effect, and the third audio effect is a surround full frequency audio effect.
9. The panoramic sound audio system of claim 1, further comprising: and the second control device is in communication connection with the at least one second audio playing device and is used for receiving an audio playing control instruction aiming at the at least one second audio playing device and controlling part of the at least one second audio playing device to play audio signals with second sound effects according to the audio playing control instruction.
10. The panoramic sound audio system of claim 9, wherein the second control device is further configured to receive a volume adjustment command for the at least one second audio playing device, and adjust the volume of the audio signal with the second sound effect played by the at least one second audio playing device according to the volume adjustment command.
11. The panoramic sound audio system of claim 9, wherein the second control device is further configured to receive an audio effect adjustment command for the at least one second audio playing device, and adjust the audio effect of the audio signal played by the at least one second audio playing device according to the audio effect adjustment command.
12. The panoramic sound audio system of claim 1, further comprising: and the third control device is in communication connection with the at least one third audio playing device and is used for receiving an audio playing control instruction aiming at the at least one third audio playing device and controlling part of the third audio playing devices in the at least one third audio playing device to play audio signals with third sound effects according to the audio playing control instruction.
13. The panoramic sound audio system of claim 12, wherein the third control device is further configured to receive a volume adjustment command for the at least one third audio playback device, and adjust the volume of the audio signal with the third sound effect played by the at least one third audio playback device according to the volume adjustment command.
14. The panoramic sound audio system of claim 12, wherein the third control device is further configured to receive an audio effect adjustment command for the at least one third audio playback device, and adjust the audio effect of the audio signal played by the at least one third audio playback device according to the audio effect adjustment command.
15. The panoramic sound audio system of claim 1, further comprising: and the terminal equipment is in communication connection with the first control device and is used for receiving a first operation aiming at a first control in an application program of the terminal equipment and sending a corresponding instruction to the first control device according to the first operation.
16. The panoramic sound audio system of claim 15, wherein the terminal device is further communicatively coupled to a second control, and further configured to receive a second operation for a second control in the application of the terminal device, and send a corresponding instruction to the second control according to the second operation.
17. The panoramic sound audio system of claim 15, wherein the terminal device is further communicatively coupled to a third control, and further configured to receive a third operation for a third control in an application of the terminal device, and send a corresponding instruction to the third control based on the third operation.
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| CN211047197U (en) * | 2019-11-05 | 2020-07-17 | 首望体验科技文化有限公司 | Audio playing system applied to 720-degree spherical screen panoramic cinema |
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| KR20180102552A (en) * | 2015-11-25 | 2018-09-17 | 토마스 미첼 다이르 | Surround sound applications and devices for vertically-oriented content |
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| CN1532809A (en) * | 2003-03-22 | 2004-09-29 | 三星电子株式会社 | Method and device for coding and/or devoding audio frequency data using bandwidth expanding technology |
| CN206640787U (en) * | 2017-03-29 | 2017-11-14 | 深圳市冠旭电子股份有限公司 | A kind of horn structure |
| CN211047197U (en) * | 2019-11-05 | 2020-07-17 | 首望体验科技文化有限公司 | Audio playing system applied to 720-degree spherical screen panoramic cinema |
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