CN207690496U - Intensified multifunction digital audio frequency decoder - Google Patents

Abstract

The utility model provides a kind of intensified multifunction digital audio frequency decoder, including：Power clock unit Power Deck (10), decoding balanced unit DAC Deck (20), Hyblid Buffer Amplifier unit Level Deck (30).Compared with prior art, the utility model has following advantageous effect：The utility model can remedy congenital the damaging of CD discs (PCM format), and the lossless sound quality for vinyl record of striving for matching in excellence or beauty makes the magnanimity CD discs for depositing generation come back to life.The high definition music of modern lossless DSD formats can be decoded again.(SACD carriers)；Meanwhile the utility model includes that multi-functional extension and low side popularize type, it is intended to which extend one's service covering surface.

Description

Intensified multifunction digital audio frequency decoder

Technical field

The utility model is related to sound appliances, specifically, being related to a kind of intensified multifunction digital audio frequency decoder；Especially It is to be related to mating power supply, precision interval clock and Multi-function extension, such as prime and balanced device.

Background technology

Current music and song plays melody mostly using CD optical digital disks as carrier by digital audio frequency decoder.Limit Limit in the technology of history, CD music since congenital sampling damages, therefore is caused with the PCM format of the low sampling rate of 44.1Khz Tone color is dry, it is cold, puckery, intolerant to the audio coding (Figure 1A) listened.

On the one hand, modern high definition music is using SACD as carrier, and the 2.8224MHz close samplings rate of DSD formats is almost Reach the lossless sound quality of vinyl record.(Figure 1B)

On the other hand, the completely lossless vinyl record of analog format damages dry, cold, the puckery number of CD due to avoiding Sound, with its details, abundant, the gentle resistance to lossless sound quality listened is favored, pseudo-classic counteroffensive (Fig. 1 C), 2014, the pin of vinyl record The amount of selling has been more than CD discs.

But vinyl record, compared with magnanimity deposits the CD discs of generation, vinyl record exists：

1, entry level black glue player price is up to ten times of CD players；

2, the player adjustment work for making us awe-inspiring is also faced with after buying；

3, the film source of vinyl record is few, and disc price is up to the several times of CD discs.

Utility model content

For the defects in the prior art, the purpose of this utility model is to provide a kind of intensified multifunction digital audio decoding Code device.

According to a kind of intensified multifunction digital audio frequency decoder provided by the utility model, including：Shell, power clock Unit Power Deck10, decoding balanced unit DAC Deck20, Hyblid Buffer Amplifier unit Level Deck30；

Power clock unit Power Deck10, decoding balanced unit DAC Deck20, Hyblid Buffer Amplifier unit Level Deck30 is arranged at enclosure；

It is connected with signal wire between power clock unit Power Deck10 and decoding balanced unit DAC Deck20；

Power clock unit Power Deck10 respectively with decoding balanced unit DAC Deck20, Hyblid Buffer Amplifier unit It is connected with supply lines between Level Deck30；

Power clock unit Power Deck10, decoding balanced unit DAC Deck20, Hyblid Buffer Amplifier unit Level Deck30 is located in a cabinet of shell, or is located in the multiple cabinets of shell being sequentially overlapped, wherein described more Mechanical shockproof mechanism is provided in a cabinet between adjacent layer cabinet.

Preferably：

The power clock unit Power Deck10 include：Power supply AC IN101, rubidium atomic clock CLK102, battery unit CELL103, direct current branch output interface DC OUT104, harddisk memory HD105；

The decoding balanced unit DAC Deck20 include：Digital audio decoding chip DAC200, WIFI Anneta module 201, when HDMI input modules 202, USB two-way modules 203, numeral input selector IN PUT-D220,44.1＆48KHZ are bis- Clock generator CLK OUT205, dsp chip 207, input buffer storage RAM208, audio balance circuit 2.0CH209, room Balanced device EQ210, multipath voltage regulation power supply DCN211, subwoofer frequency divider 0.1＆0.2CH212；

The Hyblid Buffer Amplifier unit 30 includes：Simulation input selector INPUT A301, buffer amplifier AMP302, delay Rush amplifier balanced output circuit BNC303, buffer amplifier ammeter CURENT304, volume adjuster VOL305, MC pickup Switch 307 is arranged in voltage amplification transformer MC 306, MC/MM pickup；

Power supply AC IN101, battery unit CELL103 are separately connected the input of direct current branch output interface DC OUT104 End；

The input terminal of the output end connection multipath voltage regulation power supply DCN211 of direct current branch output interface DC OUT104；

The output end of multipath voltage regulation power supply DCN211 connects multiple-way supply line；

Rubidium atomic clock CLK102 connection 44.1＆48KHZ doubleclocking generator CLK OUT205；

Harddisk memory HD105 connection input buffer storages RAM208；

WIFI Anneta modules 201, HDMI input modules 202, the output end of USB two-way modules 203 are defeated by number respectively Enter selector INPUT-D220 connection input buffer storages RAM208；

Digital audio decoding chip DAC200 is separately connected dsp chip 207, multimode low-pass filter LPF204, inputs and delay Rush memory RAM 208, audio balance circuit 2.0CH209；

Audio balance circuit 2.0CH209 is connected to the input terminal of buffer amplifier AMP302；

Buffer amplifier AMP302 connection buffer amplifier volume adjustments VOL305；

The input terminal of simulation input selector INPUT-A301 formed CD player entrance CD31, black glue phonograph entrance LP IN32, The input terminal of the output end connection REQ room equalizer EQ210 of line inlet LINE33, simulation input selector IN PUT-A301；

The input terminal of the output end connection MC/MM pickup setting switch 307 of simulation input selector INPUT-A301, MC/ One output end of MM pickup setting switch 307 passes through MC pickup amplifying transformer MC306 connection buffer amplifiers AMP302's Another output end of input terminal, MC/MM pickup setting switch 307 is directly connected to the input terminal of buffer amplifier AMP302；

REQ room equalizer EQ210 has microphone MIC25；

The output end of REQ room equalizer EQ210 is separately connected the input terminal of buffer amplifier AMP302, subwoofer frequency divider 0.1&0.2CH212；

Buffer amplifier ammeter 304, volume adjuster VOL305 are separately connected buffer amplifier AMP302.

Preferably：

Rubidium atomic clock CLK102 in the power clock unit Power Deck10, is respectively connected to solve by signal wire WIFI Anneta modules 201, HDMI input modules 202 in code balanced unit DAC Deck20, USB two-way modules 203, number Audio decoder chip DAC200,44.1＆48KHZ doubleclocking generator CLK OUT205, dsp chip 207, input buffer storage RAM208。

Preferably：

The multipath voltage regulation power supply DCN211 of digital audio decoding chip DAC200 is to L channel, right channel, Hyblid Buffer Amplifier list Digital circuit individual branc circuit power supply in analog circuit, digital audio decoding chip DAC200 in first Level Deck30；

Digital audio decoding chip DAC200 multi-channel parallels；

Battery unit CELL103 is mainly made of the lithium Fe battery unit of more piece Graphene electrodes；

Digital audio decoding chip DAC200 uses ES9038 chips, ES9028 chips or ES9018 chips.

Preferably：

Buffer amplifier AMP302 in Hyblid Buffer Amplifier unit Level Deck30 is electron tube prime buffer amplifier；

Buffer amplifier AMP302 is as electron earphone amplifier；Or buffer amplifier AMP302 is black as electron tube Glue pickup amplifier；

The subwoofer frequency divider 0.1＆0.2CH212 decoded in balanced unit DAC Deck20 uses 2.1/2.2 sound channel low frequencies Prescalar.

Preferably：

Harddisk memory HD105 in power clock unit Power Deck10 uses electromagnetism hard disk or solid-state electronic Disk；

Buffer amplifier AMP302 in Hyblid Buffer Amplifier unit Level Deck30 using discharge-tube amplifier, transistor or Person's integrated circuit；

Rubidium atomic clock CLK102 or constant temperature femtosecond clock are used in power clock unit Power Deck10；

Battery unit CELL103 in power clock unit Power Deck10 is using graphene battery or charging lithium electricity Pond.

Compared with prior art, the utility model has following advantageous effect：

Intensified multifunction digital audio frequency decoder provided by the utility model is a kind of digital audio decoding hardware platform, Reasonable for structure, layout is appropriate, and buffering vibration compensator is provided between cabinet, also has connecing for multiple external equipments in preference Mouthful, the external equipments such as CD player, vinyl record machine can be connected.

In further improvement based on digital audio decoding hardware platform provided by the utility model, such as method is improved It is improved with structure, congenital the damaging of CD discs (PCM format) can be remedied, the lossless sound quality for vinyl record of striving for matching in excellence or beauty makes to deposit The magnanimity CD discs of generation are come back to life.The high voiceless sound (SACD carriers) of modern lossless DSD formats can be decoded again；Meanwhile this reality Type is popularized including multi-functional extension and low side, it is intended to which extend one's service covering surface with novel.

Description of the drawings

Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model Sign, objects and advantages will become more apparent upon：

Comparison diagrams of the Fig. 1 between CD, SACD, vinyl record audio sample rate.

Fig. 2 is the principle assumption diagram of intensified multifunction digital audio frequency decoder provided by the utility model.

Fig. 3 is the principle assumption diagram of the intensified multifunction digital audio frequency decoder in the change case of Fig. 2.

Fig. 4 is the application schematic diagram of intensified multifunction digital audio frequency decoder provided by the utility model.

It is shown in figure：

Specific implementation mode

The utility model is described in detail with reference to specific embodiment.Following embodiment will be helpful to this field Technical staff further understands the utility model, but does not limit the utility model in any form.It should be pointed out that ability For the those of ordinary skill in domain, without departing from the concept of the premise utility, several changes and improvements can also be made. These belong to the scope of protection of the utility model.

The shortcoming of traditional scheme

In the prior art, the improvement of traditional decoder is as follows：

1, top decoder chip is selected；

2, femtosecond precision interval clock reduces the influence of JITTER shakes；

3, raising frequency filters, and makes low pass filter cutoff frequency far from effective audio；

4, left/right sound, the power supply of analog/digital circuit individual branc circuit, to reduce power supply noise；

5, the roads decoder label multi-channel parallel 4-8 are to improve audio resolution.

Although traditional decoder has used top digital audio decoding chip, due to pcm encoder audio-frequency information Congenital " road blocking tiger " damaged must not solve, even if the top decoder of the TIDAL companies in 100,000 dollars of Northern Europe has to congenital Damage is also helpless.With the vinyl record exquisiteness that matches in excellence or beauty；The target of gentle sound quality still has gap.

It is improved by the enhancing of hardware platform of the utility model

In view of this, be based on hardware platform provided by the utility model, in addition to above 5 it is conventional improve other than, more can be with Be further improved, use it is following 8 innovation enhancing countermeasure in appoint it is multinomial, to be addressed in addition solve very well how Remedy that CD discs etc. are congenital to damage sound quality.Specifically, these improve by force feature and include：

1, to congenital the damaging of pcm encoder format audio information, according to the forward and backward slope Yi Beisai of audio digital stream envelope Your BEZIER conic section Function Modules draw up the firmware of the smoothing algorithm of initial intact envelope, to damaging audio-frequency information into row interpolation Mend damage.

2,8~10 times of raising frequency filtering is mended damage with above-mentioned interpolation and is shared with a piece of dsp processor.

3, using most accurately rubidium atomic clock, thousand are only error 1 second.

4, for two kinds of CD standards of the Europe, the United States of PCM, two sets of clocks of 48KHZ＆44.1KHZ are provided.Most in the hope of clocking error It is small.

5, using ram buffer, the influence of JITTER shakes is isolated.

6, it is to keep power supply most pure, using graphene battery direct current supply.And it can be put when filling.

7, using Differential Output, to improve resolution.

8, increase phaseswitch, to correct the stereo orientation problem caused by the false wiring in recording, playback approach.

Basic embodiment

According to a kind of intensified multifunction digital audio frequency decoder provided by the utility model, including：Power clock unit Power Deck10, decoding balanced unit DAC Deck20, Hyblid Buffer Amplifier unit Level Deck30；

Power clock unit Power Deck10, decoding balanced unit DAC Deck20, Hyblid Buffer Amplifier unit Level Deck30 is arranged at enclosure；

It is connected with signal wire between power clock unit Power Deck10 and decoding balanced unit DAC Deck20；

Power clock unit Power Deck10 respectively with decoding balanced unit DAC Deck20, Hyblid Buffer Amplifier unit It is connected with supply lines between Level Deck30；

Power clock unit Power Deck10, decoding balanced unit DAC Deck20, Hyblid Buffer Amplifier unit Level Deck30 is located in a cabinet of shell, or is located in the multiple cabinets of shell being sequentially overlapped, wherein described more Mechanical shockproof mechanism is provided in a cabinet between adjacent layer cabinet.

The decoding balanced unit DAC Deck20：Digital audio and video signals are converted into analogue audio frequency recovering signal；

The power clock unit Power Deck10：Clock signal is provided to decoding balanced unit DAC Deck20, and To decoding balanced unit DAC Deck20, Hyblid Buffer Amplifier unit Level Deck30 power supplies；

The Hyblid Buffer Amplifier unit Level Deck30：To the mould of the decoding balanced unit DAC Deck20 outputs Quasi- audio recovering signal is amplified；

Wherein, the digital audio and video signals include damaging psycho-acoustic signal.

In conjunction with Fig. 4, decoding balanced unit DAC Deck20, Hyblid Buffer Amplifier unit Level Deck30 in the utility model It is multi-functional to realize that plurality of devices can be connected by interface.Wherein, the connection of these equipment can be according to the decoder The difference of type and selectivity connects.

Embodiment illustrated in fig. 2

Embodiment illustrated in fig. 2 is the preference of basic embodiment, specifically, as shown in Fig. 2, the decoding balanced unit Decoding function in DAC Deck20：Pass through digital audio decoding chip DAC200, multimode low-pass filter 204,44.1＆ 48KHZ doubleclocking generators CLK OUT205, damage algorithm firmware MAKE UP206, dsp chip 207, input buffer storage are mended Digital audio and video signals are converted to analogue audio frequency recovering signal by RAM208；

Time clock feature in the power clock unit Power Deck10：Into decoding balanced unit DAC Deck20 It is WIFI Anneta modules 201, HDMI input module HDMI202, USB two-way modules 203, digital audio decoding chip DAC 200, more Mould low-pass filter firmware LPF204,44.1＆48KHZ doubleclocking generator CLK OUT205, damage algorithm firmware MAKE is mended UP206, dsp chip 207, input buffer storage RAM208, provide clock signal；

Power supply function in the power clock unit Power Deck10：To decoding balanced unit DAC Deck20, delay Rush amplifying unit Level Deck30 power supplies；

Enlarging function in the Hyblid Buffer Amplifier unit Level Deck30：To the decoding balanced unit DAC Deck20 It is filtered by digital audio decoding chip DAC200 decodings, by multimode low-pass filter firmware LPF204 by digital audio and video signals Wave damages algorithm firmware MAKEUP206 benefits damage by benefit, by audio balance circuit 2.0CH209 recovering signals, is put by buffering Big device AMP302 is amplified analogue audio frequency recovering signal；Multimode low-pass filter firmware LPF204 is located at digital audio decoding In chip DAC200 or dsp chip 207；

The benefit damage algorithm firmware MAKE UP206 are located in digital audio decoding chip DAC200 or dsp chip 207.

The decoder provided by the utility model, which is intended to remedy the congenital of CD digital audio, to be damaged；

In the decoding balanced unit DAC Deck20, reading CD by numeral input selector INPUT-D220 has Psycho-acoustic signal is damaged, benefit damage is carried out to damaging psycho-acoustic signal, obtains approximate lossless analogue audio frequency recovering signal.

In the Hyblid Buffer Amplifier unit Level Deck30：Using Differential Output, to improve analogue audio frequency resolution, and Phaseswitch is provided, three-dimensional acoustic fix ranging is corrected.

Using following any or various features in the power clock unit Power Deck10：

1, femtosecond precision interval clock is realized using rubidium atomic clock, reduces the influence of JITTER shakes；

2, it is filtered by 204 raising frequency of multimode low-pass filter, makes low pass filter cutoff frequency far from effective audio；

3, it is powered to L channel, right channel, analog circuit, digital circuit individual branc circuit by multipath voltage regulation power supply 211, with Reduce power supply noise；

4, digital audio decoding chip multipath is in parallel, to improve audio resolution

544.1＆48KHZ doubleclocking generators provide 44.1KHZ, 48KHZ two sets of decoding clocks；

6, it is powered using most pure battery DC, large capacity is combined as with the lithium Fe battery unit of more piece Graphene electrodes Battery unit CELL103；

7, Jitter effect of jitter is isolated as buffering area using input buffer storage RAM208；

8, by audio balance circuit 2.0CH209 Differential Outputs, audio resolution is improved.

The intensified multifunction digital audio frequency decoder provided by the utility model, included existing corrective measure It is as follows：

1, using top DAC decoding chips：It is top:ES9038；Middle rank:ES9028；Entry level:ES9018；

2,10 times of raising frequency filtering；

3, femtosecond constant temperature clock；

4,4 tunnels or 8 road DAC Core labels are in parallel；

5, left and right sound channels, the equal individual branc circuit power supply of Yi Jimo, number circuit.

The decoder provided by the utility model is to realize multi-functional including following any or appoint a variety of devices：

1, HDMI interface 202；

2, WIFI interface 201；

3, USB interface 203；

The Hyblid Buffer Amplifier unit Level Deck30, including following any or a variety of devices：

1, buffer amplifier AMP302 is electron tube prime buffer amplifier, impedance input>300K ohm, impedance output< 300 ohm；

2, buffer amplifier AMP302 is as electron earphone amplifier；

3, buffer amplifier AMP302 is as black glue pickup amplifier, black glue pickup be divided into muting sensitivity MM pickup and Highly sensitive MC pickup：

MC pickup input signal amplitudes are higher, directly using buffer amplifier 302 as pickup amplifier；

The MM pickup is needed since input signal amplitude is relatively low by other MC pickup amplifying transformer MC306 liters After pressing big increasing degree later, just using buffer amplifier AMP302 as pickup amplifier；

MC pickup input signal amplitudes are relatively low, when 307 switches are arranged in upper end, need by MM and MC pickup Switch 307 is set, and after MC pickup amplifying transformer MC306 voltage amplifications, just send buffer amplifier AMP302 and 306 The two is combined as MC pickup amplifiers；

4, subwoofer frequency divider 0.1＆0.2CH212 uses 2.1/2.2 sound channel low frequency prescalars；

5, REQ room equalizer EQ210 is room acoustics parameter automatic equalizer；

REQ room equalizer EQ210 is connected to balanced device microphone MIC25, to detect room acoustics distortion, certainly by balanced device Dynamic adjustment is flat.

The preference of embodiment illustrated in fig. 2

The preference of embodiment illustrated in fig. 2 is illustrated below, to make the utility model the advantages of is apparent.More For specifically, the scheme in the preference of the utility model is as follows：

Battery unit CELL103.The battery can be that the lithium Fe battery unit CELL of more piece Graphene electrodes is combined as High capacity cell.

Multipath voltage regulation power supply DCN211, alternatively referred to as direct current branch supply.To reduce power supply noise interference, by number/mould Quasi- circuit；Left/right sound channel；Courage electron tube/stone transistor circuit is independently powered.

Harddisk memory HD105：For storing the lossless melody downloaded.The memory is plug type, for desktop Stereo set utilizes the time-consuming and laborious lossless music content downloaded in memory of portable player.The mechanical hard disk is deposited Reservoir can also use solid-state electronic storage dish.

Digital audio decoding chip DAC200.Signal-to-noise ratio can be selected to be more than the top decoder chip finished product of 130dB：Such as ES9038 has 10dB or more voltage gains；And built-in multimode low-pass filter LPF；For the free tone color of user.

Multimode low-pass filter firmware LPF204 and mend damage algorithm firmware MAKE UP206 can both share single-chip Digital signal processor DSP, LPF low-pass filters therein can also utilize the filter work(built in finished product decoder chip Can, dsp chip mends damage algorithm dedicated for interpolation.

REQ room equalizer EQ210.To balance the unevenness of room acoustical characteristic, digital equalizer uses 32bit or more Digital signal processor DSP；With 5 cun or more of chromatic liquid crystal screen；With 64 sections or more of curve；It can be by writing pencil Flat room acoustics curve needed for arbitrary setting on the screen.

Subwoofer frequency divider 0.1＆0.2CH212 provides the output of 2.1 sound channel subwoofers.It is complete entitled " before 2.1 sound channel supper bass Set frequency divider ", the audio of expensive heavy caliber woofer is realized for small-bore subwoofer.Thus middle pitch and high pitch filter Go out 2.0 stereo left and right sound channels, stereo audio letter is exported by the Differential Output port 2.0OUT35 of prime buffer amplifier Numbers 2.0.

Audio balance circuit 2.0CH209 systems are to improve resolution.

To increase the Sensurround of sound field, two subwoofer interfaces are provided, so as to be formed：

1 subwoofer：The sound channel of+0.1 subwoofer channel of 2.0 stereo double channel=2.1

2 subwoofers：The sound channel of+0.2 subwoofer channel of+0.1 bass sound card of 2.0 stereo double channel=2.2.

Simulation input selector IN PUT-A301.Input selection is directed to CD-audio player, black glue phonograph LP and circuit LINE tri- The switching of kind analog input signal.Using relay mode, to reduce wiring noise.

Buffer amplifier AMP302, be 75 ohm~600 ohm of low output impedance current amplifier voltage amplifier by Digital audio decoding chip DAC200 shares, the buffer amplifier, except amplifying as prime, also also serves as Earphone Amplifier.

Earphone Amplifier tool puts jack there are two ear, shared with the two people's word for meeting family's tabletop sound equipment.

The amplification of audio prime puts buffer amplifier using buffer amplifier balanced output circuit BNC303 using electron tube courage To simulate the gentle tone color of vinyl record as possible, the size, power consumption and vehicle-mounted shock-absorbing for being limited to portable player require for system, Transistor, integrated amplifier may be used.

The electric current instruction of buffer amplifier ammeter CURENT304 series electron pipes, complete entitled " CURENT INDICATION " Abbreviation.The electric current instruction uses indicator type current meter head, opal can also be used to show electron tube.

Volume adjuster VOL305 uses stepping positioner, to overcome the rotational noise of carbon membrane locator.

The utility model popularizes type from enhancing performance, expanded function, low side, and single decoder is not enough to integrate Into the demand.Therefore it needs to realize with the decoding systems of three units.Wherein：

One lower layer of unit, power clock unit Power Deck

Two middle level of unit, decoding balanced unit DAC Deck

Three upper layer of unit, Hyblid Buffer Amplifier unit Level Deck

When the utility model integration contour structures are upper layer Hyblid Buffer Amplifier unit, middle layer decoder balanced unit, underlying power Clock unit.It is formed by stacking by three layers of 19 cun of standard PC case.Digital audio decoding chip uses the ES90X8 chips of ESS companies, example Such as ES9018, ES9028, ES9038 chip.

Decoder in the utility model has the characteristics that multifunction.The top sound quality that top enthusiast pursues it is bent high and Widow, rare numbers, for increase client's coverage area, for Fancier do one's utmost to aspire after perfection sound quality the characteristics of, such as There is the client of black glue phonograph, though decoder is not needed, but the room Parametric equalizer EQ and 2.1 low-frequency channels of the utility model Preposition client's frequency divider can hit its pain spot, and to 8 kinds of expanded functions provided by the utility model, each takes what he needs, will make Client's overlay capacity is double.8 kinds of expanded functions are as follows：

1, top decoder

2, electron tube prime buffer amplifier

3, electron earphone amplifier.

4, electron tube black glue pickup amplifier

5,2.1/2.2 sound channels low frequency prescalar

6, room acoustics parameter automatic equalizer EQ

7, HDMI input ports

8, WiMAX WIFI receive capabilities.

Further, to make client's covering surface bigger of decoder provided by the utility model, with the utility model Major function may make up low side popular style acoustic product：

1, portable lossless audio frequency player

2, vehicle-mounted decoder

3, computer with external sonic-effect card

4, Earphone Amplifier

5, household tabletop sound system

The utility model is applied to above-mentioned low side acoustic product, and client's overlay capacity can be made to increase to hundred times.With this practicality For the portable audio players of novel composition, composition Docking composite aircraft formula desktop systems on desktop docking station can be inserted in, To save decoder investment.Furthermore, it is possible to utilize a large amount of lossless music of the time-consuming and laborious download of portable machine.But primary and secondary unit Close exquisite connector and anti-vibration structure leads to the increase for decoding system cost again.Therefore, the utility model preferably uses primary and secondary one The decoder architecture of body machine.Mechanical hard disk can be used in down-load music or solid-state electronic disk shares.It the connector of system structure and keeps away From the strict demand of sound quality high-fidelity, the electrical connection between layers of three layers of cabinet is dedicated advanced using industry for shake Connector.Mechanical shock-absorbing between layers is using special shock-absorbing foot cone and cone pad.

Embodiment illustrated in fig. 3

Embodiment illustrated in fig. 3 is the change case of embodiment illustrated in fig. 2.

In the embodiment depicted in figure 2, multimode low-pass filter 204 is included in digital audio decoding chip 200, mends damage Algorithm firmware MAKE UP206 are included in dsp chip 207.

And in the embodiment shown in fig. 3, multimode low-pass filter firmware LPF204 is included in dsp chip 207, is mended Damage algorithm firmware MAKE UP206 are included in dsp chip 207.

In more change case：

Electromagnetism hard disk or solid-state electronic disk may be used in harddisk memory HD105, using in the utility model as portable Dimensionally changed when machine.

Discharge-tube amplifier or transistor, integrated circuit may be used in buffer amplifier AMP302, in the utility model Dimensionally changed when as portable machine, and is become in shock-absorbing performance when the utility model is as vehicle-mounted type machine Change.

Rubidium atomic clock CLK102 can change as constant temperature femtosecond clock, to be changed in cost.

Graphene battery or charged lithium cells may be used in battery unit CELL103, to be obtained in cost and weight Variation.

The preference of basic embodiment or embodiment illustrated in fig. 2 or embodiment illustrated in fig. 3

In the preference of basic embodiment or embodiment shown in Fig. 2, embodiment illustrated in fig. 3 preference in：

In the power clock unit Power Deck10：It is combined as greatly with the lithium Fe battery unit of more piece Graphene electrodes Capacity batteries；Direct current supply is the independently-powered mode of multichannel；Using plug-in harddisk memory HD105.

In the decoding balanced unit DAC Deck20：Utilize digital audio decoding chip DAC200 or DSP chip 207 mend damage into row interpolation；Raising frequency filtering is carried out using digital audio decoding chip DAC200 or dsp chip 207；The number of use The signal-to-noise ratio of word tone frequency decoding chip DAC200 is more than 130dB；Simulation input selector IN PUT-A301 are defeated using analog signal The multiple selector entered, numeral input selector IN PUT-D220 use the multiple selector of digital signal input, multichannel choosing It selects and is switched using relay mode between the different input interfaces of device.

The input terminal of the output end connection MC/MM pickup setting switch 307 of simulation input selector INPUT-A301, MC/ One output end of MM pickup setting switch 307 passes through MC pickup amplifying transformer MC306 connection buffer amplifiers AMP302's Another output end of input terminal, MC/MM pickup setting switch 307 is directly connected to the input terminal of buffer amplifier AMP302；

The analog audio signal that digital audio and video signals decode is sent to DSP by digital audio decoding chip DAC200 Chip 207；Dsp chip 207 carries out mending damage to analog audio signal or interpolation mends damage, and decoding obtains analogue audio frequency recovering signal； Analogue audio frequency recovering signal is carried out audio balance by digital audio decoding chip DAC200 by audio balance circuit 2.0CH209 After be delivered to buffer amplifier AMP302, then buffered amplifier AMP302 carry out Hyblid Buffer Amplifier after balanced through buffer amplifier Output circuit BNC303 is transported to external power amplifier, with drive the speaker.

Application examples：

Fig. 2 shows each external interface of basic embodiment and the application of each equipment of external sound system for being applied connect Example is shown in Fig. 4.

Specific embodiment of the utility model is described above.It is to be appreciated that the utility model not office It is limited to above-mentioned particular implementation, those skilled in the art can make a variety of changes or change within the scope of the claims, This has no effect on the substantive content of the utility model.In the absence of conflict, the spy in embodiments herein and embodiment Sign can be arbitrarily combined with each other.

Claims (6)

1. a kind of intensified multifunction digital audio frequency decoder, which is characterized in that including：Shell, power clock unit Power Deck (10), decoding balanced unit DAC Deck (20), Hyblid Buffer Amplifier unit Level Deck (30)；

Power clock unit Power Deck (10), decoding balanced unit DAC Deck (20), Hyblid Buffer Amplifier unit Level Deck (30) is arranged at enclosure；

It is connected with signal wire between power clock unit Power Deck (10) and decoding balanced unit DAC Deck (20)；

Power clock unit Power Deck (10) respectively with decoding balanced unit DAC Deck (20), Hyblid Buffer Amplifier unit Level Deck are connected with supply lines between (30)；

Power clock unit Power Deck (10), decoding balanced unit DAC Deck (20), Hyblid Buffer Amplifier unit Level Deck (30) is located in a cabinet of shell, or is located in the multiple cabinets of shell being sequentially overlapped, wherein described Mechanical shockproof mechanism is provided in multiple cabinets between adjacent layer cabinet.

2. intensified multifunction digital audio frequency decoder according to claim 1, it is characterised in that：

The power clock unit Power Deck (10) include：Power supply AC IN (101), rubidium atomic clock CLK (102), battery list First CELL (103), direct current branch output interface DC OUT (104), harddisk memory HD (105)；

The decoding balanced unit DAC Deck (20) include：Digital audio decoding chip DAC (200), WIFI Anneta modules (201), HDMI input modules (202), USB two-way modules (203), numeral input selector IN PUT-D (220), 44.1＆ 48KHZ doubleclocking generator CLK OUT (205), dsp chip (207), input buffer storage RAM (208), audio balance electricity Road 2.0CH (209), REQ room equalizer EQ (210), multipath voltage regulation power supply DCN (211), subwoofer frequency divider 0.1＆0.2 CH (212)；

The Hyblid Buffer Amplifier unit (30) includes：Simulation input selector INPUT A (301), buffer amplifier AMP (302), delay Rush amplifier balanced output circuit BNC (303), buffer amplifier ammeter CURENT (304), volume adjuster VOL (305), MC pickup voltage amplification transformer MC (306), MC/MM pickup setting switch (307)；

Power supply AC IN (101), battery unit CELL (103) are separately connected the input of direct current branch output interface DC OUT (104) End；

The input terminal of the output end connection multipath voltage regulation power supply DCN (211) of direct current branch output interface DC OUT (104)；

The output end of multipath voltage regulation power supply DCN (211) connects multiple-way supply line；

Rubidium atomic clock CLK (102) connection 44.1＆48KHZ doubleclocking generator CLK OUT (205)；

Harddisk memory HD (105) connection input buffer storage RAM (208)；

WIFI Anneta modules (201), HDMI input modules (202), USB two-way modules (203) output end pass through number respectively Input selector INPUT-D (220) connection input buffer storage RAM (208)；

Digital audio decoding chip DAC (200) is separately connected dsp chip (207), multimode low-pass filter LPF (204), input Buffer storage RAM (208), audio balance circuit 2.0CH (209)；

Audio balance circuit 2.0CH (209) is connected to the input terminal of (302) buffer amplifier AMP；

Buffer amplifier AMP (302) connection buffer amplifier volume adjustment VOL (305)；

The input terminal of simulation input selector INPUT-A (301) forms CD player entrance CD (31), black glue phonograph entrance LP IN (32), (33) line inlet LINE, the output end connection REQ room equalizer EQ of simulation input selector IN PUT-A (301) (210) input terminal；

The input terminal of the output end connection MC/MM pickup setting switch (307) of simulation input selector INPUT-A (301), MC/ One output end of MM pickup setting switch (307) passes through MC pickup amplifying transformer MC (306) connection buffer amplifiers AMP (302) another output end of input terminal, MC/MM pickup setting switch (307) is directly connected to buffer amplifier AMP (302) Input terminal；

REQ room equalizer EQ (210) has microphone MIC (25)；

The output end of REQ room equalizer EQ (210) is separately connected the input terminal of (302) buffer amplifier AMP, subwoofer frequency divider 0.1&0.2CH(212)；

Buffer amplifier ammeter (304), volume adjuster VOL (305) are separately connected buffer amplifier AMP (302).

3. intensified multifunction digital audio frequency decoder according to claim 1, it is characterised in that：

Rubidium atomic clock CLK (102) in the power clock unit Power Deck (10), is respectively connected to solve by signal wire WIFI Anneta modules (201), HDMI input modules (202) in code balanced unit DAC Deck (20), USB two-way modules (203), digital audio decoding chip DAC (200), 44.1＆48KHZ doubleclocking generator CLK OUT (205), dsp chip (207), (208) input buffer storage RAM.

4. intensified multifunction digital audio frequency decoder according to claim 1, it is characterised in that：

The multipath voltage regulation power supply DCN (211) of digital audio decoding chip DAC (200) is to L channel, right channel, Hyblid Buffer Amplifier list Digital circuit individual branc circuit in analog circuit, digital audio decoding chip DAC (200) in first Level Deck (30) supplies Electricity；

Digital audio decoding chip DAC (200) multi-channel parallel；

Battery unit CELL (103) is mainly made of the lithium Fe battery unit of more piece Graphene electrodes；

Digital audio decoding chip DAC (200) uses ES9038 chips, ES9028 chips or ES9018 chips.

5. intensified multifunction digital audio frequency decoder according to claim 1, it is characterised in that：

Buffer amplifier AMP (302) in Hyblid Buffer Amplifier unit Level Deck (30) is electron tube prime buffer amplifier；

Buffer amplifier AMP (302) is used as electron earphone amplifier；Or buffer amplifier AMP (302) is black as electron tube Glue pickup amplifier；

The subwoofer frequency divider 0.1＆0.2CH (212) decoded in balanced unit DAC Deck (20) uses 2.1/2.2 sound channel low frequencies Prescalar.

6. intensified multifunction digital audio frequency decoder according to claim 1, it is characterised in that：

Harddisk memory HD (105) in power clock unit Power Deck (10) uses electromagnetism hard disk or solid-state electronic Disk；

Buffer amplifier AMP (302) in Hyblid Buffer Amplifier unit Level Deck (30) using discharge-tube amplifier, transistor or Person's integrated circuit；

Using rubidium atomic clock CLK (102) or constant temperature femtosecond clock in power clock unit Power Deck (10)；

Battery unit CELL (103) in power clock unit Power Deck (10) is using graphene battery or charging lithium electricity Pond.