CN205666916U - Novel LED LCD TV audio processor - Google Patents

Abstract

The utility model discloses a novel LED LCD TV audio processor, enlarge module, level detection module and audio output module including audio frequency processing module, the analog signal switch module that is used for controlling earphone output signal break -make, audio power, the highest level detection module respectively with the analog signal switch module with audio power enlargies the module and connects, still be connected with on the audio frequency processing module digital delay timer with be used for to sound sound signal decorate with the sense of hearing stimulating module of the sonication that beautifies, this sense of hearing stimulating module adopt the serial -type with audio frequency processing module output is connected. The utility model discloses a novel LED LCD TV audio processor who obtains has following characteristics: digital delay timer can help to improve the comb filter distortion as the synchronous controller of multichannel speaker sound, and adoption sense of hearing stimulating module can improve the penetration power of tone quality, tone quality, improvement sound, and the space that increases sound is felt.

Description

A kind of New LED LCD TV audio process

Technical field

This utility model relates to a kind of New LED LCD TV audio process.

Background technology

Along with the development of people's living standard to such an extent as to the raising of each side appreciation level, to such an extent as to the tonequality to program And subjective feeling it is also proposed higher requirement, traditional volume controls to be regulated by manual control, exists the biggest Random, it is impossible to accurately control peak level, to ensure signal when not occurring mediation loudness relatively low when maximum loudness The control of signal to noise ratio, signal level is too small, and making signal to noise ratio decline affects acoustical quality, so not can solve switching two Shelves program audio level difference is away from bigger situation, particularly obvious when two grades of program switchings.

Utility model content

The purpose of this utility model is to provide a kind of to reduce distortion, tonequality more to solve above-mentioned the deficiencies in the prior art Good a kind of New LED LCD TV audio process.

To achieve these goals, a kind of New LED LCD TV audio process designed by this utility model, including Audio processing modules, for controlling the analogue signal switch module of receiver output signal break-make, audio power amplification module, level Detection module and dio Output Modules, the input of described analogue signal switch module is defeated with the receiver of described audio processing modules Going out end to connect, the input of described audio power amplification module is connected with the audio output of described audio processing modules, described The input of dio Output Modules respectively with described analogue signal switch module and the outfan of described audio power amplification module Connect；Described level detection module is connected with described analogue signal switch module and described audio power amplification module respectively, special Levy and be: be also associated with digital chronotron on described audio processing modules and for acoustical signal being modified and beautifying The auditory stimulus module of sonication, this auditory stimulus module uses tandem to be connected with described audio processing modules outfan.

Preferably, described digital chronotron includes connecting the most from left to right the first low pass filter, sampler, A/ D digital converter, digital shift register, D/A digital converter, sampling switch and the second low pass filter.

Preferably, the first buffer that described auditory stimulus module includes being connected by line, resistance, the first adjustable electric Resistance, drive level wave filter, voltage-controlled high pass filter, the second buffer and harmonic oscillator, the output of described buffer End signal is divided into two-way, and a road is delivered on resistance, and this signal is delivered on the second buffer, another road of described buffer Signal is delivered on drive level wave filter, and the outfan of drive level wave filter is delivered to voltage-controlled high pass filter signal On, voltage-controlled high pass filter is delivered to signal on harmonic oscillator, and this harmonic oscillator is delivered to the second buffer signal On, and harmonic oscillator and buffer install the first above-mentioned adjustable resistance, on described voltage-controlled high pass filter between the two It is provided with the second adjustable resistance for realizing the regulation of voltage-controlled corner frequency.

A kind of New LED LCD TV audio process that this utility model obtains, has the following characteristics that digital prolonging Time device can help improve comb filter distortion as the controller of multichannel loudspeaker synchronous sound, use auditory stimulus module Tonequality, tone color, the penetration power of raising sound can be improved, increase the spatial impression of sound.

Accompanying drawing explanation

Fig. 1 is structural schematic block diagram of the present utility model.

Detailed description of the invention

With embodiment, this utility model is further illustrated below in conjunction with the accompanying drawings.

Embodiment:

As it is shown in figure 1, a kind of New LED LCD TV audio process that the present embodiment provides, including Audio Processing mould Block, for control the analogue signal switch module of receiver output signal break-make, audio power amplification module, level detection module and Dio Output Modules, the input of described analog switch module is connected with the receiver outfan of described audio processing modules, described The input of audio power amplification module is connected with the audio output of described audio processing modules, described dio Output Modules Input outfan with described analog switch module and described audio power amplification module respectively is connected；Described level detection mould Block is connected with described analog switch module and described audio power amplification module respectively, and it by realizing prison in real time to level value Survey, the turn-on and turn-off absolute to reach analog switch module, efficiently avoid the electric current occurred in audio processing modules anti- Fill phenomenon.Digital chronotron it is also associated with and for acoustical signal being modified and beautifying on described audio processing modules The auditory stimulus module of sonication, this auditory stimulus module uses tandem to be connected with described audio processing modules outfan.

Described digital chronotron includes that the first low pass filter connected the most from left to right, sampler, A/D numeral turn Parallel operation, digital shift register, D/A digital converter, sampling switch and the second low pass filter, digital chronotron is mould Intend audio signal and be converted into digital signal through A/D, then these digital signals are stored in memory, until obtaining prolonging of setting Time the time after just read out, through D/A conversion being reduced to analogue signal.

Described auditory stimulus module is included the first buffer connected by line, resistance, the first adjustable resistance, drives electricity Flat wave filter, voltage-controlled high pass filter, the second buffer and harmonic oscillator, the output end signal of described buffer is divided into Two-way, a road is delivered on resistance, and this signal is delivered on the second buffer, and another road signal of described buffer is delivered to On drive level wave filter, the outfan of drive level wave filter is delivered to signal on voltage-controlled high pass filter, voltage-controlled high pass Wave filter is delivered to signal on harmonic oscillator, and this harmonic oscillator is delivered to signal on the second buffer, and harmonic wave is sent out Raw device installs the first above-mentioned adjustable resistance between the two with buffer, and described voltage-controlled high pass filter is provided with for reality Second adjustable resistance of existing voltage-controlled corner frequency regulation.By the auditory stimulus circuit of the design, it can prevent distortion, Ke Yizeng Increase the weight of the transparency put the music on and close to sense, thus obtain more interesting to listen to effect.

For this utility model person of an ordinary skill in the technical field, conceive without departing from this utility model Under premise, its framework form can be flexible and changeable, simply makes some simple deduction or replace, all should be considered as belonging to by this reality The scope of patent protection determined with novel submitted to claims.

Claims (3)

1. a New LED LCD TV audio process, including audio processing modules, for controlling receiver output signal break-make Analogue signal switch module, audio power amplification module, level detection module and dio Output Modules, described analogue signal is opened The input closing module is connected with the receiver outfan of described audio processing modules, the input of described audio power amplification module End is connected with the audio output of described audio processing modules, and the input of described dio Output Modules is believed with described simulation respectively The outfan of number switch module and described audio power amplification module connects；Described level detection module is believed with described simulation respectively Number switch module and described audio power amplification module connect, and are characterised by: be also associated with numeral on described audio processing modules Formula chronotron and the auditory stimulus module of the sonication for modifying acoustical signal and beautify, this auditory stimulus module is adopted It is connected with described audio processing modules outfan by tandem.

A kind of New LED LCD TV audio process the most according to claim 1, it is characterised in that: described digital Chronotron includes that the first low pass filter connected the most from left to right, sampler, A/D digital converter, numerical shift are deposited Device, D/A digital converter, sampling switch and the second low pass filter.

A kind of New LED LCD TV audio process the most according to claim 1 and 2, it is characterised in that: described listens The first buffer of feeling stimulating module include by line to connect, resistance, the first adjustable resistance, drive level wave filter, voltage-controlled height Bandpass filter, the second buffer and harmonic oscillator, the output end signal of described buffer is divided into two-way, and a road is delivered to On resistance, this signal is delivered on the second buffer, and another road signal of described buffer is delivered to drive level wave filter On, the outfan of drive level wave filter is delivered to signal on voltage-controlled high pass filter, and voltage-controlled high pass filter is defeated signal Delivering on harmonic oscillator, this harmonic oscillator is delivered to signal on the second buffer, and harmonic oscillator and buffer two The first above-mentioned adjustable resistance is installed between person, described voltage-controlled high pass filter is provided with for realizing voltage-controlled corner frequency Second adjustable resistance of regulation.