CN113055790A - Cinema decoding terminal processor - Google Patents

Cinema decoding terminal processor Download PDF

Info

Publication number
CN113055790A
CN113055790A CN202110208476.4A CN202110208476A CN113055790A CN 113055790 A CN113055790 A CN 113055790A CN 202110208476 A CN202110208476 A CN 202110208476A CN 113055790 A CN113055790 A CN 113055790A
Authority
CN
China
Prior art keywords
audio
processor
input
input circuit
stage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110208476.4A
Other languages
Chinese (zh)
Inventor
李永康
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Weimiao Electronic Technology Co ltd
Original Assignee
Guangzhou Weimiao Electronic Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangzhou Weimiao Electronic Technology Co ltd filed Critical Guangzhou Weimiao Electronic Technology Co ltd
Priority to CN202110208476.4A priority Critical patent/CN113055790A/en
Publication of CN113055790A publication Critical patent/CN113055790A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
    • 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
    • H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

The invention discloses a cinema decoding terminal processor, which comprises a preceding stage audio processor, a first audio input circuit, a subsequent stage audio processor, a second audio input circuit and a power amplifier output component, wherein the preceding stage audio processor is connected with the first audio input circuit; the first audio input circuit is connected with the data input end of the preceding stage audio processor and comprises different types of audio data interfaces; the rear-stage audio processor is respectively connected with the front-stage audio processor and the second audio input circuit, and outputs audio signals of the front-stage audio processor and the second audio input circuit to the power amplifier output assembly for amplification and playing after the audio signals are subjected to audio mixing processing. According to the invention, the preceding stage adjustment is completed through the preceding stage audio processor, so that high-quality sound output is realized, the channel MIX is completed through the following stage audio processor, the gain and EQ adjustment of each independent channel are realized, and the high-quality audio output by the preceding stage audio processor is combined for compensation, so that the mixing effect and the playing effect of the audio are greatly improved; and corresponding different audio modes can be entered, and the audio playing effect is improved.

Description

Cinema decoding terminal processor
Technical Field
The invention relates to the technical field of audio processing equipment, in particular to a cinema decoding terminal processor.
Background
Audio-video playing is a common mode of modern leisure entertainment and takes an audio-video source file as a base. In order to facilitate data transmission, the audio/video source file is usually a compressed file, and is decoded and played on the terminal processor. The existing terminal decoding processor can only decode, and cannot adjust different modes according to different peripheral environments, so that the decoding playing effect is poor, and the high requirements of people on sound effect modes at present cannot be well met.
Disclosure of Invention
The invention aims at the problem and provides a cinema decoding terminal processor. The technical scheme of the invention is as follows:
a cinema decoding terminal processor comprises a preceding stage audio processor, a first audio input circuit, a rear stage audio processor, a second audio input circuit and a power amplifier output component; the first audio input circuit is connected with the data input end of the preceding stage audio processor and comprises a plurality of different audio data interfaces; the rear-stage audio processor is respectively connected with the front-stage audio processor and the second audio input circuit, and outputs audio signals of the front-stage audio processor and the second audio input circuit to the power amplifier output assembly for amplification and playing after the audio signals are subjected to audio mixing processing.
As a preferred technical scheme of the invention, the post-stage audio processor comprises a plurality of independent channels, each independent channel is provided with independent channel gain comprising a pulse width modulation circuit and a power amplifier, and different loudspeakers are connected through the independent channels so as to form a corresponding audio mode according to the decoded audio type and/or selection setting.
Still further, the system comprises an operation interface and a memory, wherein the memory can store the audio mode of the cinema decoding terminal processor, and when the operation interface selects the corresponding playing operation, the cinema decoding terminal processor calls the corresponding audio mode to drive the independent channels.
Furthermore, the audio data interface of the first audio input circuit comprises a COAXIAL interface and an optical fiber interface for digital input, an AUX interface and a Bluetooth module for analog input, an HDMI interface for external high definition input, an RS232 interface for OTT device input and a USB interface.
Furthermore, the digital input audio data interface comprises a switch circuit, which can select one of the COAXIAL interface and the optical fiber interface as a workshop section port to receive the digital audio data, and input the digital audio data into the pre-stage audio processor for signal processing and decoding.
Furthermore, the analog input AUDIO data interface comprises a digital switch circuit, an external analog AUDIO signal and a Bluetooth wireless AUDIO signal pass through the AUDIO SW and then enter an AUDIO DSP analog input channel, and the signals are converted into digital AUDIO signals by an ADC and output.
Furthermore, the external high definition signal input audio data interface comprises a signal separation circuit, and the output end of the signal separation circuit is connected to and controlled by the preceding stage audio processor.
Furthermore, the system also comprises a light control port for outputting the music type identification information of the audio file.
Further, the second audio input circuit is a MIC input circuit, including a wired MIC input circuit or a wireless MIC input circuit.
Further, the MIC input circuit includes a microphone sound effect processor for performing sound effect processing on the input microphone signal, and then delivering the processed signal to the post-stage audio processor.
The invention has the beneficial effects that:
according to the invention, the preceding stage adjustment is completed through the preceding stage audio processor, so that high-quality sound output is realized, the channel MIX is completed through the following stage audio processor, the gain and EQ adjustment of each independent channel are realized, and the high-quality audio output by the preceding stage audio processor is combined for compensation, so that the mixing effect and the playing effect of the audio are greatly improved; corresponding different audio modes can be entered, and the audio playing effect is improved; each sound channel is independently set, so that independent sound channel gain adjustment is facilitated, different sound effect modes are customized according to different sound channels, the private customization attribute of a cinema decoding terminal processor is greatly improved, and the individuality is shown; the storage is arranged to store each sound effect mode, so that the cinema decoding terminal processor can call the corresponding sound effect mode to work according to different conditions.
Drawings
FIG. 1 is a schematic block diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of a first main circuit of a preceding stage audio processor according to the present invention;
FIG. 3 is a schematic diagram of a second main circuit of a preceding stage audio processor according to the present invention;
FIG. 4 is a schematic diagram of the main circuit of the post-stage audio processor according to the present invention;
FIG. 5 is a diagram illustrating an exemplary operation interface according to an embodiment of the present invention.
Detailed Description
Example (b):
the embodiments of the present invention will be described in detail with reference to the accompanying drawings, and it is to be understood that the described embodiments are merely a part of the embodiments of the invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
A cinema decoding terminal processor comprises a preceding stage audio processor, a first audio input circuit, a rear stage audio processor, a second audio input circuit and a power amplifier output component. The first audio input circuit is connected with the data input end of the preceding stage audio processor and comprises a plurality of different audio data interfaces; the rear-stage audio processor is respectively connected with the front-stage audio processor and the second audio input circuit, and outputs audio signals of the front-stage audio processor and the second audio input circuit to the power amplifier output assembly for amplification and playing after the audio signals are subjected to audio mixing processing. The cinema decoding terminal processor of this embodiment accomplishes the sound field to sound, pressure limit, gain and audio adjustment through preceding stage audio processor, realizes high-quality sound output, accomplishes passageway MIX through back stage audio processor, and each independent passageway gain, EQ adjustment combine the high-quality audio frequency of preceding stage audio processor output to compensate, have promoted the mixed effect and the broadcast effect of audio frequency greatly.
As shown in the accompanying drawings, different audio data can be input into the multiple different types of audio data interfaces of the first audio input circuit, and specifically, the audio data interfaces of this embodiment include a digital input coaxal interface and an optical fiber interface, an analog input AUX interface and a bluetooth module, an external high definition input HDMI interface, an OTT device input RS232 interface, and a USB interface, so that the first audio input circuit of this embodiment can implement digital input, analog input, high definition signal input, and OTT device input of a preceding stage audio processor, covers a main data input type currently required to perform audio processing, and improves an application range of a user.
Referring to fig. 1, the digital input method of this embodiment includes a switch circuit, which can select one of the coax interface and the optical fiber interface as a process port to receive digital audio data, and input the digital audio data to a preceding-stage audio processor for signal processing and decoding. In the analog input mode, the digital switch circuit is also included, external analog AUDIO signals and Bluetooth wireless AUDIO signals pass through the AUDIO SW and then enter an AUDIO DSP analog input channel, and the signals are converted into digital AUDIO signals by an ADC to be output.
Referring to fig. 1, in the external high definition signal input mode of the present embodiment, a signal separation circuit is included, and an output terminal of the signal separation circuit is connected to and controlled by the preceding stage audio processor. The input HDMI signal passes through the signal separation circuit and then is separated into a video signal and a digital audio signal, the video signal can be connected to a display device for displaying and playing, and the digital audio signal is transmitted to the preceding stage audio processor for audio decoding and outputting. In addition, the OTT device input mode of this embodiment includes an OTT module, and an output end of the OTT module is connected to the signal separation circuit and is controlled by the preceding stage audio processor. And the OTT module reads data of the U disk or the mobile hard disk, outputs an HDMI differential signal, separates out a digital audio signal through a signal separation circuit, and then transmits the digital audio signal to the preceding stage audio processor for audio decoding output. In the karaoke mode, OTT identifies the music type, and then sends data to RJ45 port through the serial port, and cooperates with external light to make effect.
Based on the above structure, the front-stage audio processor of the present embodiment can obtain the digital audio signal through the above four modes and manners, and perform sound field, voltage limit, gain, and sound effect adjustment on the digital audio signal, and output the high-quality digital audio signal to enter the subsequent rear-stage audio processor, so as to be used as a mixed sound source input of the rear-stage audio processor. The other mixed sound source input of the post-stage audio processor is from the second audio input circuit, which in this embodiment is an MIC input circuit, and may be a wired MIC input circuit or a wireless MIC input circuit, for example, to implement the karaoke function. In this embodiment, the MIC input circuit includes a MIC DSP for performing sound effect processing on an input microphone signal first, and then delivering the processed signal to the post-stage audio processor. DIGITAL IN, HDMI IN, OTT IN, AUX IN, BT IN output digital AUDIO signals after passing through AUDIO DSP, enter AUDIO MIX chip, and output to power amplification part after mixing with wireless microphone, to push speaker to sound, to realize high-quality mixing and playing of cinema decoding terminal processor.
The post-stage audio processor comprises a plurality of independent channels, each independent channel is provided with independent channel gain comprising a pulse width modulation circuit and a power amplifier, and different loudspeakers are connected through the independent channels so as to form a corresponding audio mode according to the decoded audio type and/or selection setting.
Still further, the system comprises an operation interface and a memory, wherein the memory can store the audio mode of the cinema decoding terminal processor, and when the operation interface selects the corresponding playing operation, the cinema decoding terminal processor calls the corresponding audio mode to drive the independent channels. Referring to the operation interface of the embodiment shown in fig. 4, a movie option card is selected to enter a movie library interface, and a movie decoding terminal processor automatically calls a dynamic movie sound effect mode stored in the movie library interface to work; selecting the ' Tengcong video ' picture to click and enter a Tengcong video interface, and automatically calling a digital television ' sound effect mode stored in the cinema decoding terminal processor to work and the like so as to improve the corresponding high-sound-frequency effect.
The foregoing is illustrative of the preferred embodiments of the present invention only and is not to be construed as limiting the claims. The invention is not limited to the above embodiments, the specific construction of which allows variations, and in any case variations, which are within the scope of the invention as defined in the independent claims.

Claims (10)

1. A cinema decoding terminal processor, comprising: the audio amplifier comprises a preceding-stage audio processor, a first audio input circuit, a rear-stage audio processor, a second audio input circuit and a power amplifier output component; the first audio input circuit is connected with the data input end of the preceding stage audio processor and comprises a plurality of different audio data interfaces; the rear-stage audio processor is respectively connected with the front-stage audio processor and the second audio input circuit, and outputs audio signals of the front-stage audio processor and the second audio input circuit to the power amplifier output assembly for amplification and playing after the audio signals are subjected to audio mixing processing.
2. The cinema decoding terminal processor according to claim 1, characterized in that: the post-stage audio processor comprises a plurality of independent channels, each independent channel is provided with independent channel gain comprising a pulse width modulation circuit and a power amplifier, and different loudspeakers are connected through the independent channels so as to form a corresponding audio mode according to the decoded audio type and/or selection setting.
3. The cinema decoding terminal processor according to claim 2, characterized in that: the system comprises an operation interface and a memory, wherein the memory can store the audio mode of a cinema decoding terminal processor, and when the operation interface selects corresponding playing operation, the cinema decoding terminal processor calls the corresponding audio mode to drive the independent channels.
4. The cinema decoding terminal processor according to claim 1, characterized in that: the audio data interface of the first audio input circuit comprises a COAXIAL interface and an optical fiber interface for digital input, an AUX interface and a Bluetooth module for analog input, an HDMI interface for external high-definition input, an RS232 interface for OTT equipment input and a USB interface.
5. The cinema decoding terminal processor according to claim 1, characterized in that: the digital input audio data interface comprises a switch circuit, can select one of the COAXIAL interface and the optical fiber interface as a workshop section port to receive digital audio data, and inputs the digital audio data into a preceding stage audio processor for signal processing and decoding.
6. The cinema decoding terminal processor according to claim 1, characterized in that: the analog input AUDIO data interface comprises a digital switch circuit, external analog AUDIO signals and Bluetooth wireless AUDIO signals pass through an AUDIO SW and then enter an AUDIO DSP analog input channel, and the signals are converted into digital AUDIO signals by an ADC to be output.
7. The cinema decoding terminal processor according to claim 1, characterized in that: the external high-definition signal input audio data interface comprises a signal separation circuit, and the output end of the signal separation circuit is connected to and controlled by the preceding stage audio processor.
8. The cinema decoding terminal processor according to claim 1, characterized in that: the system also comprises a light control port used for outputting the music type identification information of the audio file.
9. The cinema decoding terminal processor according to claim 1, characterized in that: the second audio input circuit is an MIC input circuit and comprises a wired MIC input circuit or a wireless MIC input circuit.
10. The cinema decoding terminal processor according to claim 9, characterized in that: the MIC input circuit includes a microphone sound effect processor for performing sound effect processing on an input microphone signal and then transmitting to the post-stage audio processor.
CN202110208476.4A 2021-02-24 2021-02-24 Cinema decoding terminal processor Pending CN113055790A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110208476.4A CN113055790A (en) 2021-02-24 2021-02-24 Cinema decoding terminal processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110208476.4A CN113055790A (en) 2021-02-24 2021-02-24 Cinema decoding terminal processor

Publications (1)

Publication Number Publication Date
CN113055790A true CN113055790A (en) 2021-06-29

Family

ID=76509106

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110208476.4A Pending CN113055790A (en) 2021-02-24 2021-02-24 Cinema decoding terminal processor

Country Status (1)

Country Link
CN (1) CN113055790A (en)

Similar Documents

Publication Publication Date Title
US7653447B2 (en) Integrated audio video signal processing system using centralized processing of signals
CN101341740B (en) Device linkage apparatus
CN100568936C (en) Video/audio output device and external loudspeaker controller
US8649538B2 (en) Hearing aid having multiple sound inputs and methods therefor
US9055265B2 (en) Accessibility improvement for hearing impaired
US8498726B2 (en) Bi-directional broadcasting system for a small space
US8869214B2 (en) Device control apparatus, device control method and computer program
US20100053471A1 (en) Television apparatus and method for controlling the same
US10809967B2 (en) Analog/digital audio converter and a method thereof
CN1093351C (en) CDP-incorporated television receiver
US8654261B2 (en) Video and audio processing device and program thereof
CN214177543U (en) Cinema decoding terminal processor
JP2003309892A (en) Speaker output device
CN102138114A (en) System and methods for television integrated surround sound systems
CN113055790A (en) Cinema decoding terminal processor
US20140180459A1 (en) HDMI Signal Processing System and Method
US20060062396A1 (en) Optical reproducing apparatus and method to transform external audio into multi-channel surround sound
JP2007235519A (en) Method and system for video sound synchronization
EP1471771A2 (en) Audio reproduction apparatus and video receiving apparatus
JP2599438Y2 (en) Audio signal processing device
KR100640832B1 (en) Digital television
KR100360225B1 (en) Immediate recording method and circuit in television receiver
CN2712008Y (en) Television program receiver for multi-audio signal process
CN101217052B (en) An integrated DVD device
CN109005481A (en) Multiple sound resource integrated audio, control method, equipment and control device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination