CN213522371U - Multi-channel bass intensifying effect cinema audio processing system - Google Patents
Multi-channel bass intensifying effect cinema audio processing system Download PDFInfo
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- CN213522371U CN213522371U CN202022923495.9U CN202022923495U CN213522371U CN 213522371 U CN213522371 U CN 213522371U CN 202022923495 U CN202022923495 U CN 202022923495U CN 213522371 U CN213522371 U CN 213522371U
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Abstract
A multi-channel bass sensitization effect cinema audio processing system comprises a projector, a sensitization processing module, a digital cinema audio processor and a power amplifier module, wherein the sensitization processing module receives a digital signal output by the projector and conducts sensitization processing, the sensitization processing module outputs a 6CH bass analog signal to the power amplifier module, the sensitization processing module additionally outputs a digital signal to the digital cinema audio processor, and the digital cinema audio processor conducts digital processing on the received signal and outputs a high-pitch analog signal, a middle-pitch analog signal and a low-pitch analog signal to the power amplifier module; the intensifying processing module comprises a dual-core DSP, an AES/IIS interface, a TDM interface and a D/A conversion unit arranged at the output end of the TDM interface, wherein the AES/IIS interface is an input interface of the dual-core DSP, and the TDM interface is an output interface of the dual-core DSP. By adopting the technical scheme, bass sensitization can be carried out on movie sound, and movie watching experience is improved.
Description
Technical Field
The utility model belongs to the technical field of cinema audio processing system technique and specifically relates to a multichannel bass sensitization effect cinema audio processing system.
Background
In the current cinema sound effect system, the way of improving the low frequency sound effect is only to perform bass compensation by increasing the number of bass channel sound boxes, and does not substantially change the low frequency sound. Meanwhile, the lower limit of the frequency response of the bass channel loudspeaker box adopted in the traditional movie sound technology of 5.1 system and panoramic sound system only needs to be 20Hz, and the effect of low-frequency sound is difficult to reflect completely. The present cinema sound effect system cannot show low-frequency sound in the same way as the development level of visual technology, and cannot completely reflect the low-frequency sound, thereby influencing the perception effect of audiences on the film art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a multichannel bass sensitization effect cinema audio processing system through carrying out audio frequency to a plurality of sound channels and handling, carries out the bass sensitization according to the film scene, and the reinforcing is seen the perception effect of film audience to film art, has improved and has seen the shadow and experience. In order to achieve the above purpose, the utility model adopts the following technical scheme:
a multi-channel bass sensitization effect cinema audio processing system comprises a projector, a sensitization processing module, a digital cinema audio processor and a power amplifier module, wherein the sensitization processing module receives a digital signal output by the projector and conducts sensitization processing, the sensitization processing module outputs a 6CH bass analog signal to the power amplifier module, the sensitization processing module additionally outputs a digital signal to the digital cinema audio processor, and the digital cinema audio processor conducts digital processing on the received signal and outputs a high-pitch analog signal, a middle-pitch analog signal and a low-pitch analog signal to the power amplifier module; the intensifying processing module comprises a dual-core DSP, an AES/IIS interface, a TDM interface and a D/A conversion unit arranged at the output end of the TDM interface, the AES/IIS interface is an input interface of the dual-core DSP, the TDM interface is an output interface of the dual-core DSP, and the 6CH bass analog signals are front-row ground bass signals, rear-row ground bass signals, left surround sound signals, right surround sound signals, sub-bass signals and intensifying bass signals respectively.
Furthermore, the projector outputs 8 CH-16 CH digital signals to the intensifying processing module, and the intensifying processing module correspondingly outputs 8 CH-16 CH digital signals to the power amplification module.
Further, the input end of the amplification processing module receives a left front channel signal, a right front channel signal, a center channel signal, a left surround channel signal, a right surround channel signal, a left back surround channel signal, a right back surround channel signal, and a subwoofer channel signal.
Furthermore, the input interface of the sensitization processing module comprises a DB-25 socket, the output interface of the sensitization processing module comprises two DB-25 sockets, wherein one DB-25 socket outputs a 6CH bass analog signal to the power amplifier module, and the other DB-25 socket outputs a digital signal to the digital cinema audio processor.
Further, the intensifying bass signal is also output through the cannon head.
Furthermore, the sensitization processing module further comprises an MCU, a display screen for displaying the state, a key and a network cable interface for connecting with an upper computer through a network.
By adopting the technical scheme, the sensibilization processing module establishes the preset scene sensibility classification model corresponding to the movie sound in advance, and performs bass sensibilization processing on the digital signals of 8 sound channels and outputs bass analog signals of 6 sound channels through the sensibilization processing module with the dual-core DSP when the movie is played, so that the feeling of audiences on the movie scene is enhanced in the aspect of bass, and the effect of watching the movie is improved.
Drawings
Fig. 1 is a schematic block diagram of the present invention.
Fig. 2 is a functional diagram of the sensitization processing module.
Detailed Description
The present invention will be described with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 and 2, a multi-channel bass sensitization effect cinema audio processing system includes a projector, a sensitization processing module, a digital cinema audio processor and a power amplifier module, wherein the digital cinema audio processor is FCQA-9631.
The intensifying processing module comprises a dual-core DSP, an AES/IIS interface, a TDM interface, a D/A conversion unit arranged at the output end of the TDM interface, an MCU, a display screen for state display, a key and a network cable interface for network connection with an upper computer. The model of the dual-core DSP is ADSP-SC58X, the AES/IIS interface is the input interface of the dual-core DSP, the TDM interface is the output interface of the dual-core DSP, in addition, the input end of the intensifying processing module is provided with a DB-25 socket, the output end is provided with two DB-25 sockets, one of the DB-25 sockets positioned at the output end outputs a 6CH bass analog signal to the power amplifier module, the other DB-25 socket outputs a digital signal to the digital cinema audio processor, and the display screen has a touch function and is convenient to operate.
The intensifying processing module receives and amplifies the digital signal output by the projector, and the projector outputs 8 CH-16 CH digital signals including a left front sound channel signal, a right front sound channel signal, a center sound channel signal, a left surrounding sound channel signal, a right surrounding sound channel signal, a left rear surrounding sound channel signal, a right rear surrounding sound channel signal and a subwoofer sound channel signal.
The intensifying processing module outputs 6CH bass analog signals to the power amplification module after bass intensifying processing, the 6CH bass analog signals are front-row ground bass signals, rear-row ground bass signals, left surround sound signals, right surround sound signals, sub-bass signals and intensifying bass signals respectively, and the intensifying bass signals are output through a DB-25 socket and are output through a cannon head.
In addition, the sensitization processing module outputs 8 CH-16 CH digital signals to the digital cinema audio processor according to the number of channels of the digital signals input from the projector, and the digital cinema audio processor performs digital processing on the received signals and outputs high-pitch analog signals, middle-pitch analog signals and low-pitch analog signals to the power amplification module.
By adopting the technical scheme, the sensibilization processing module establishes the preset scene sensibility classification model corresponding to the movie sound in advance, and performs bass sensibilization processing on the digital signals of 8 sound channels and outputs bass analog signals of 6 sound channels through the sensibilization processing module with the dual-core DSP when the movie is played, so that the feeling of audiences on the movie scene is enhanced in the aspect of bass, and the effect of watching the movie is improved.
Through having set up high performance's dual core DSP, can carry out the sensitization processing to a plurality of sound channels simultaneously, for adopting a plurality of DSPs, simplified hardware structure, practiced thrift components and parts quantity, also avoided the mutual data exchange between a plurality of DSPs not enough and the emergence of the not enough problem of handling.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, which may be modified, combined, and varied by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (6)
1. A multi-channel bass-augmented effect cinema audio processing system, characterized by: the digital cinema sound-frequency processing system comprises a projector, an intensifying processing module, a digital cinema sound-frequency processor and a power amplification module, wherein the intensifying processing module receives a digital signal output by the projector and carries out intensifying processing, the intensifying processing module outputs a 6CH bass analog signal to the power amplification module, the intensifying processing module additionally outputs a digital signal to the digital cinema sound-frequency processor, and the digital cinema sound-frequency processor carries out digital processing on the received signal and outputs a high-pitch analog signal, a middle-pitch analog signal and a bass analog signal to the power amplification module;
the intensifying processing module comprises a dual-core DSP, an AES/IIS interface, a TDM interface and a D/A conversion unit arranged at the output end of the TDM interface, the AES/IIS interface is an input interface of the dual-core DSP, the TDM interface is an output interface of the dual-core DSP, and the 6CH bass analog signals are front-row ground bass signals, rear-row ground bass signals, left surround sound signals, right surround sound signals, sub-bass signals and intensifying bass signals respectively.
2. The multi-channel bass-augmented effect cinema audio processing system according to claim 1, characterized in that: the projector outputs 8 CH-16 CH digital signals to the intensifying processing module, and the intensifying processing module correspondingly outputs 8 CH-16 CH digital signals to the power amplification module.
3. The multi-channel bass-augmented effect cinema audio processing system according to claim 1, characterized in that: the input end of the intensifying processing module receives a left front sound channel signal, a right front sound channel signal, a center sound channel signal, a left surround sound channel signal, a right surround sound channel signal, a left back surround sound channel signal, a right back surround sound channel signal and a subwoofer sound channel signal.
4. The multi-channel bass-augmented effect cinema audio processing system according to claim 1, characterized in that: the input interface of the intensifying processing module comprises a DB-25 socket; the output interface of the intensifying processing module comprises two DB-25 sockets, wherein one DB-25 socket outputs a 6CH bass analog signal to the power amplifier module, and the other DB-25 socket outputs a digital signal to the digital cinema audio processor.
5. The multi-channel bass-augmented effect cinema audio processing system according to claim 4, characterized in that: the said intensifying bass signal is also output through the cannon head.
6. The multi-channel bass-augmented effect cinema audio processing system according to claim 1, characterized in that: the intensifying processing module also comprises an MCU, a display screen for displaying the state, a key and a network cable interface for network connection with an upper computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022923495.9U CN213522371U (en) | 2020-12-09 | 2020-12-09 | Multi-channel bass intensifying effect cinema audio processing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022923495.9U CN213522371U (en) | 2020-12-09 | 2020-12-09 | Multi-channel bass intensifying effect cinema audio processing system |
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| CN213522371U true CN213522371U (en) | 2021-06-22 |
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| CN202022923495.9U Active CN213522371U (en) | 2020-12-09 | 2020-12-09 | Multi-channel bass intensifying effect cinema audio processing system |
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Address after: 510820, Guangzhou, Guangdong province Huadu District charcoal step Feida Industrial Park Patentee after: Guangzhou Feida Audio Co.,Ltd. Address before: 510820, Guangzhou, Guangdong province Huadu District charcoal step Feida Industrial Park Patentee before: FIRST AUDIO MANUFACTURING Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |