CN214177543U

CN214177543U - Cinema decoding terminal processor

Info

Publication number: CN214177543U
Application number: CN202120409539.8U
Authority: CN
Inventors: 李永康
Original assignee: Guangzhou Weimiao Electronic Technology Co ltd
Current assignee: Guangzhou Weimiao Electronic Technology Co ltd
Priority date: 2021-02-24
Filing date: 2021-02-24
Publication date: 2021-09-10
Anticipated expiration: 2031-02-24

Abstract

The utility model discloses a cinema decoding terminal processor, which 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 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. The utility model discloses a preceding stage audio processor accomplishes the preceding stage adjustment, realizes high-quality sound output, accomplishes passageway MIX through the back-end 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; and corresponding different audio modes can be entered, and the audio playing effect is improved.

Description

Cinema decoding terminal processor

Technical Field

The utility model relates to an audio processing equipment technical field, especially a cinema decoding terminal treater.

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

To the above problem, the utility model provides a cinema decoding terminal treater. The technical scheme of the utility model is that:

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 the utility model discloses preferred technical scheme, back-stage audio processor includes a plurality of independent passageways, every independent passageway is equipped with the independent passageway gain including pulse width modulation circuit and power amplifier, warp different speakers are connected to a plurality of independent passageways to audio type according to decoding and or select to set for and form corresponding audio mode.

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 utility model has the advantages that:

the utility model discloses a preceding stage audio processor accomplishes the preceding stage adjustment, realizes high-quality sound output, accomplishes passageway MIX through the back-end 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; 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 block diagram illustrating the structure of the present invention;

fig. 2 is a schematic diagram of a main circuit of the preceding-stage audio processor of the present invention;

FIG. 3 is a schematic diagram of the main circuit of the preceding-stage audio processor of the present invention;

FIG. 4 is a schematic diagram of the main circuit of the post-stage audio processor of the present invention;

fig. 5 is an exemplary diagram of an 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 below with reference to the accompanying drawings, and it is to be understood that the described embodiments are merely illustrative of some, but not all embodiments of the invention.

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, and are only for convenience of description and simplicity of 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 therefore, 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 present invention is not limited to the above embodiments, and the specific structure thereof allows for variations, and in short, all variations within the scope of the independent claims of the present invention are within the scope of the present invention.

Claims

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.