CN217335888U

CN217335888U - Audio-visual system based on switching sound channel surround sound

Info

Publication number: CN217335888U
Application number: CN202221262839.9U
Authority: CN
Inventors: 杜小微; 冯米奥; 陈烈辉
Original assignee: Shenzhen Fuyuan Digital Technology Co ltd
Current assignee: Shenzhen Fuyuan Digital Technology Co ltd
Priority date: 2022-05-24
Filing date: 2022-05-24
Publication date: 2022-08-30
Anticipated expiration: 2032-05-24

Abstract

The utility model is suitable for a voice processing equipment technical improvement field provides one kind and encircles stereophonic audio-visual system based on switching the sound channel, encircle stereophonic audio-visual system based on switching the sound channel and include audio amplifier host computer, stereo loudspeaker box, audio-visual equipment and power amplifier equipment, power amplifier equipment passes through the data line connection the audio amplifier host computer, two are connected in the communication of audio amplifier host computer stereo loudspeaker box, audio-visual equipment communication is connected power amplifier equipment. The structure is simple, the use is convenient, and repeated wiring can be effectively eliminated.

Description

Audio-visual system based on switching sound channel surround sound

Technical Field

The utility model belongs to the technical improvement field of speech processing equipment, especially, relate to an audio-visual system based on switching sound channel surrounds stereophonic sound.

Background

With the development of the times and the technical progress, people have higher and higher requirements on the diversity and the tone quality of the playing sound box of the sound. On the other hand, the thinner the modern flat tv set is, the worse the sound quality is, because the thinner the flat tv set is, the smaller and thinner the speaker and the speaker box thereof have to be, resulting in poor bass effect. When the user terminal is placed and installed, the sound channels are confused, the positions of the left sound channel loudspeaker box and the right sound channel loudspeaker box are arranged in a mess, and the wiring needs to be constructed again.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a surround stereo audio-visual system based on switching sound channel, aim at solving the stereo left and right sides sound channel installation error and need rewiring's technical problem.

The utility model discloses a realize like this, a surround stereophonic audio-visual system based on switching sound channel, surround stereophonic audio-visual system based on switching sound channel and include audio amplifier host computer, stereo audio amplifier, audio-visual equipment and power amplifier, power amplifier passes through the data line and connects the audio amplifier host computer, two are connected in the communication of audio amplifier host computer stereo audio amplifier, audio-visual equipment communication is connected power amplifier.

The utility model discloses a further technical scheme is: the stereo loudspeaker box comprises a loudspeaker box pull tube, a top end cover, a bottom end cover, a PCB circuit board, a loudspeaker box, a partition and a sound channel switching key, wherein the loudspeaker box is arranged on the loudspeaker box pull tube, the partition is arranged on the loudspeaker box pull tube, the PCB circuit board is arranged at one end of the loudspeaker box pull tube, the bottom end cover is arranged on one end of the loudspeaker box pull tube, the top end cover is arranged at the other end of the loudspeaker box pull tube, the output end of the PCB circuit board is connected with the input end of the loudspeaker box, and the sound channel switching key is arranged on the PCB circuit board.

The utility model discloses a further technical scheme is: still be equipped with bluetooth audio unit and power amplifier unit on the PCB circuit board, the output of bluetooth audio unit is connected the input of power amplifier unit, the output of power amplifier unit is connected the input of audio amplifier loudspeaker, the output of sound channel switching button is connected the input of bluetooth audio unit, the PCB circuit board passes through the screw and locates on the trombone loudspeaker box.

The utility model discloses a further technical scheme is: the loudspeaker box is arranged on the loudspeaker box pull tube through a screw.

The utility model discloses a further technical scheme is: the isolating piece is arranged on the sound box pull tube in a clamping mode.

The utility model discloses a further technical scheme is: the top end cover is arranged at the other end of the sound box pull tube in a clamping mode or a screw mode.

The utility model discloses a further technical scheme is: the loudspeaker box pull tube is characterized in that a button opening is formed in the bottom end cover, and the bottom end cover is arranged at one end of the loudspeaker box pull tube in a clamping mode and a screw mode.

The utility model discloses a further technical scheme is: the isolation room adopts an iron net.

The utility model discloses a further technical scheme is: the video and audio equipment adopts a PC computer, a notebook computer, a TV audio system, a mobile terminal or video projection equipment.

The utility model discloses a further technical scheme is: the mobile terminal adopts a smart phone or a tablet computer; the video projection device employs a network projector.

The utility model has the advantages that: add a sound channel change over switch on the circuit board of audio amplifier, simple and convenient adjust left and right sound channel correct position and humanized design, can be with left and right sound channel position, through the independent sound channel switching button of this local bottom design, this simple structure, convenient to use can effectual elimination repeat the wiring.

Drawings

Fig. 1 is a block diagram of a switched channel surround sound based audio/video system according to an embodiment of the present invention.

Fig. 2 is an exploded schematic view of the stereo speaker provided by the embodiment of the present invention.

Fig. 3 is an electrical schematic block diagram of the main speaker unit according to the embodiment of the present invention.

Fig. 4 is a schematic block diagram of an electrical structure disposed on a PCB circuit board according to an embodiment of the present invention.

Detailed Description

Reference numerals: 1-top end cover 2-sound box pull tube 3-PCB circuit board 4-sound channel switching key 5-bottom end cover 6-sound box loudspeaker 7-iron net

Fig. 1-4 show the utility model provides a surround stereophonic audio-visual system based on switching sound channel, surround stereophonic audio-visual system based on switching sound channel and include audio amplifier host computer, stereo audio amplifier, audio-visual equipment and power amplifier, power amplifier passes through data line or wireless communication and connects on the audio amplifier host computer, two are connected in the communication of audio amplifier host computer stereo audio amplifier, audio-visual equipment communication is connected power amplifier. The system is simple

Stereo loudspeaker box includes audio amplifier trombone slide 2, top end cap 1, bottom end cap 5, PCB circuit board 3, audio amplifier loudspeaker 7, separator and sound channel switch button 4, audio amplifier loudspeaker 6 is located on the audio amplifier trombone slide 2, locate at the interval on the audio amplifier trombone slide 2, PCB circuit board 3 is located the one end of audio amplifier trombone slide 2, bottom end cap 5 is located on one end of audio amplifier trombone slide 2, top end cap 1 is located on the other end of audio amplifier trombone slide 2, the output of PCB circuit board 3 is connected the input of audio amplifier loudspeaker 6, be equipped with sound channel switch button 4 on the PCB circuit board 3. Locate change over switch on the circuit board, can convenience of customers uses, through change over switch simple and conveniently adjust left and right sound channel correct position and humanized design, can with left and right sound channel position, through the independent sound channel switching button (FR/FL channel exchange) of local bottom design, press once interchangeable left and right sound channel, adjust for correct sound and sound field location.

Still be equipped with bluetooth audio unit and power amplifier unit on PCB circuit board 3, the output of bluetooth audio unit is connected the input of power amplifier unit, the output of power amplifier unit is connected the input of audio amplifier loudspeaker, the output of sound channel switching button is connected the input of bluetooth audio unit, PCB circuit board passes through the screw and locates on the trombone slide audio amplifier, PCB circuit board 3 passes through the screw and locates on the trombone slide audio amplifier.

The loudspeaker box horn 6 is arranged on the loudspeaker box pull tube 2 through a screw. The method is simple and convenient, and the replacement and the maintenance are both simple.

The isolating piece is arranged on the sound box pull tube in a clamping mode.

The top end cover 1 is arranged at the other end of the sound box pull tube 2 in a clamping mode or a screw mode.

The bottom end cover 5 is provided with a button opening, and the bottom end cover 5 is arranged at one end of the sound box pull tube 2 in a clamping mode and a screw mode.

The isolation space adopts an iron net 7.

The video and audio equipment adopts a PC computer, a notebook computer, a TV audio system, a mobile terminal or video projection equipment.

The mobile terminal adopts a smart phone or a tablet computer; the video projection device employs a network projector.

The Bluetooth audio unit adopts an ATS2853 chip, and the chip ATS2853 is a highly integrated single-chip Bluetooth audio device. It can also be used as a traditional card speaker and card reader for data transmission. ATS2853 integrates a high performance transceiver, a rich function baseband processor and a bluetooth audio profile. The Bluetooth V5.0 standard is met, the V4.2/2.1+ EDR standard is compatible, and a dual mode (BR/EDR + low energy consumption controller) is supported. The links in BR/EDR and LE may be activated simultaneously. ATS2853 integrates a high-quality and low-delay SBC decoder and CVSD codec. It also supports PLC technology and AEC to provide high audio quality in voice calls. ATS2853 integrates a complete set of power management circuitry, flexible memory configuration, matrix LED controller for UI display and rich interfaces such as SD/SDIO/SPI/USB2.0FS/UART/TWI/PWM/IR/I2STX & RX. The architecture is any application that is fully programmable. It also has the smallest package and the most compact BOM.

The power amplifier unit adopts NTP8928 chip, and chip NTP8928 is a singlechip all-digital audio amplifier, including the power stage of the stereo amplifier system. NTP8928 integrates a multifunctional digital audio signal processing function, a high-performance, high-fidelity all-digital PWM modulator, and two high-power full-bridge MOSFET power stages. NTP8928 receives digital serial audio data with sample data of 32kHz, 44.1kHz, 48kHz, and 96 kHz. It provides a 2x20 watt stereo mode, none. A heat sink. NTP8928 has a mixer and dual quad filters that may be used to perform basic audio signal processing functions such as loudness control, compensation of loud speaker responses, and parameter equalization. All functions of NTP8928 may be controlled by internal register values through the I2C host interface bus.

The chip ATS2853 utilizes a TWS (True Wireless Stereo) function. The working principle of the sound box is that a host (sound heater) is quickly connected with a rear surround sound box in a Bluetooth wireless mode, so that real rear surround left and right sound channels are separated and used wirelessly. The IC has the function of a channel selection algorithm, can conveniently realize the exchange of the left and right sound channels of the back surround, and brings unprecedented convenience to the installation and use process of a user.

The power socket of the end user is at a fixed position, and when the rear surround sound channel of the wireless surround sound channel and the home theater 5.1 sound channel are disordered left and right, the wiring does not need to be constructed again; the use of the user can be facilitated; the humanized design is simple and convenient to adjust the correct positions of the left and right sound channels of the back surround, and is characterized in that the position of the left and right sound channels of the back surround can be adjusted to correct sound and sound field positioning by pressing the left and right sound channels of the back surround for once through an independent sound channel switching key (SR/SL channel exchange) designed at the bottom of the machine.

This audio amplifier need not adjust its sound channel when the exclusive use, as long as just can according to acquiescent use, but lie in power amplifier equipment and audio-visual equipment when assembling surround stereo system, just need many every audio amplifier loudspeaker to carry out the setting of sound channel, this audio amplifier need not consider the problem of sound channel when the equipment, can carry out the switching of sound channel through the switching button of bottom installation when trying the sound according to the position of installation when well assembling the debugging, make audio amplifier automatic switch to the sound channel of demand in, switch the adjustment sound channel through an installation key, the effectual equipment that has reduced the equipment sound channel not to the time, dismantle the trouble of equipment rewiring, only need once wiring just can be complete install audio-visual equipment and assemble surround stereo system, and the user is facilitated, and convenient to use.

The sound-controlled music player can facilitate a user to use a sound-controlled bar (SOUNDBAR), and meet the requirements of people on the sound listening to the scene and the shack through artificial intelligence sound field equalization no matter the user listens to music in Bluetooth, OptiCAL, USB and LINE input modes or watches movies in HDMI (ARC).

In the home theater, the matching combination of the sound box and the television (for making up the deficiency of the accompanying sound of the television) is very convenient, and the entertainment in the home is satisfied, so that the perception and the listening enjoyment are satisfied.

However, the sound amplitude output by the television HDMI (ARC) is generally 6-8dB lower than the output amplitude of the common CD and DVD disc player (related to the program recording and the video output amplitude of each household appliance) when the Television (TV) with different brands projects and watches different program sources, and in order to make up for the defect, when the sound heater is designed by software, when the CPU receives a movie mode command sent by the remote controller for 3-5 seconds continuously, the CPU sends a command to the audio processing chip according to a preset algorithm, so that the gain (amplification factor) of the whole machine is automatically compensated by 6-8 dB; the imperfect caused by non-uniform program recording and video output amplitude of each household appliance is made up.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A video and audio system based on switching sound track surround sound is characterized in that: the audio-visual system based on the switched sound channel surround sound comprises a sound box host, three-dimensional sound boxes, audio-visual equipment and power amplifier equipment, wherein the power amplifier equipment is connected with the sound box host through a data line, the sound box host is in communication connection with the two three-dimensional sound boxes, and the audio-visual equipment is in communication connection with the power amplifier equipment.

2. The audio-visual system based on the switched-channel surround sound of claim 1, wherein the stereo speaker comprises a speaker pull tube, a top end cap, a bottom end cap, a PCB circuit board, a speaker horn, a spacer and a channel switching button, the speaker horn is disposed on the speaker pull tube, the spacer is disposed on the speaker pull tube, the PCB circuit board is disposed at one end of the speaker pull tube, the bottom end cap is disposed at one end of the speaker pull tube, the top end cap is disposed at the other end of the speaker pull tube, an output end of the PCB circuit board is connected to an input end of the speaker horn, and the channel switching button is disposed on the PCB circuit board.

3. The audio/video system according to claim 2, wherein the PCB is further provided with a bluetooth audio unit and a power amplifier unit, an output terminal of the bluetooth audio unit is connected to an input terminal of the power amplifier unit, an output terminal of the power amplifier unit is connected to an input terminal of the speaker, an output terminal of the channel switch button is connected to an input terminal of the bluetooth audio unit, and the PCB is mounted on the speaker pull tube through screws.

4. The audio/video system for switched channel surround sound according to claim 3, wherein said speaker speakers are mounted to said speaker pull tubes by screws.

5. The audio/video system for switched channel surround sound according to claim 4, wherein said spacer is attached to said speaker pull tube by snap-fitting.

6. The switched channel surround sound based audio/video system of claim 5, wherein the top cover is attached to the other end of the pull tube of the speaker by a snap-fit or screw.

7. The audio/video system according to claim 6, wherein the bottom cover has a button opening, and the bottom cover is fastened to one end of the pull tube of the speaker box by a fastening means and a screw.

8. The switched channel surround sound based audio visual system of claim 7, wherein said spacer is a ferrous mesh.

9. The switched channel surround sound based audio visual system of claim 8, wherein the audio visual device is a PC computer, a notebook, a TV audio system, a mobile terminal, or a video projector.

10. The switched channel surround sound based audio/video system according to claim 9, wherein the mobile terminal is a smart phone or a tablet computer; the video projection device employs a network projector.