CN201290180Y - Digital decode box and earphone with multi-acoustic-channel sound source format interpretation function - Google Patents
Digital decode box and earphone with multi-acoustic-channel sound source format interpretation function Download PDFInfo
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- CN201290180Y CN201290180Y CNU2008201191985U CN200820119198U CN201290180Y CN 201290180 Y CN201290180 Y CN 201290180Y CN U2008201191985 U CNU2008201191985 U CN U2008201191985U CN 200820119198 U CN200820119198 U CN 200820119198U CN 201290180 Y CN201290180 Y CN 201290180Y
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Abstract
The utility model provides a decoding box suitable for receiving multi-channel sound source. The digital decoding box can determine format of received sound source signal, and transmitting the signal into earphone with 5. 1 channel horn for playing after decoding process. When receiving sound source of 5. 1 channel format, the digital decoding box decodes the sound source, and then transmitting the signal into earphone with 5. 1 channel for playing, wherein the output signal has three groups, comprising front stereo signal, rear stereo signal, and center signal and subwoofer signal. When the received sound source format is two-channel stereo sound, the amplified signal is simultaneously transmitted into at least two groups of horns of 5. 1 channel earphone for playing, and voice with sound-field separated effect is produced by different horn combinations in 5. 1 channel earphone, thereby making stereo sound source of two channel producing different sound field effect.
Description
Technical field
The utility model relates to a kind of digital multi-sound-channel earphone decoding device, and particularly has a multichannel digital three-dimensional sound field Headphone device relevant for a kind of.
Background technology
Along with the progress of numeral science and technology, people's life ﹠ amusement also tends to digitlization gradually.For instance, digital image and sound optical disk (Digital Versatile Disc generally abbreviates DVD as) player has been image player common in the general family.And because DVD player has had Dolby Digital (Dolby Digital) or Digital Theater System (Digital Theater System basically, generally abbreviate DTS as) decoding function, therefore can decode to digital signal, and the output analog signal makes 5.1 sound channel horn system sounding to the multichannel enlarger.
If will have the digital audio-video entertainment life of higher quality, multichannel enlarger and loudspeaker are indispensable outfits, and the loudspeaker of 5.1 sound channels are most basic multichannel loudspeaker.
The family's theater that generally has 5.1 sound channel enlargers and loudspeaker is when the DVD player broadcast is audio-visual, enlarger can be respectively amplifies left horn and the right horn and the supper bass loudspeaker (Sub Woofer) of the left horn that export preposition main sound channel to and right horn, center channel (Center) loudspeaker, surround channel (Surround or Rear) with different voice signals, make it produce 3 D space sound effect, the sense of reality of making us being personally on the scene.
Yet, under the situation that is not suitable for utilizing loudspeaker to play sound (for example being can hamper other people to do things), just must use earphone to listen to.General earphone only respectively sets loudspeaker at the right and left, so the user also can't enjoy the multichannel audio that DVD player is exported.For this reason, tradition proposes the earphone that a kind of inside has a plurality of loudspeaker, has set preposition main sound channel loudspeaker, center channel loudspeaker, surround channel loudspeaker and supper bass loudspeaker at the right and left respectively, can be used for being connected to the source of sound of multichannel.But, can't detect the digital tone source signal of different-format at present and do different decoding processing for the amplifier that provides sound source signal to multi-sound-channel earphone.
The utility model content
The utility model proposes a kind of digital decoding box, be applicable to be connected to a multi-sound-channel earphone that this digital decoding box comprises a digital signal processor, a multichannel digital analog converter, a multi-sound-channel earphone amplifier, a pattern of the input checkout gear, a deferred mount and a supper bass/preposition loudspeaker selection switching device shifter.This digital signal processor is in order to receiving a digital tone source signal, and carries out output one decoded signal after the decoding processing.The multichannel digital analog converter is connected to digital signal processor, in order to the reception decoded signal, and transfers an analog signal to.The multi-sound-channel earphone amplifier is connected to the multichannel digital analog converter, in order to receive analog signal, and after amplifying according to this, export a preposition sound channel signal (containing left and right), a surround channel signal (containing left and right), a center channel signal and a supper bass signal.The pattern of the input checkout gear is connected to the multichannel digital analog converter, in order to the actual output channels number of detection decoded signal, and exports a control signal according to this, carries out the earphone mode of operation and switches.Supper bass/preposition loudspeaker select switching device shifter to be connected to pattern of the input checkout gear and deferred mount, the preposition sound channel signal of being exported in order to the receive delay device and from the supper bass signal of 6 sound channel Earphone Amplifiers, and according to control signal and according to this switching preamplifier sound channel and supper bass signal, when preposition sound channel only has output and when surround channel and the equal no-output of supper bass sound channel, supper bass/preposition loudspeaker are selected switching device shifter to cut off supper bass output immediately and the preposition sound channel in the left and right sides are merged respectively to export left and right sides supper bass loudspeaker to, to strengthen the stereo effect of listening to.Deferred mount is in order to receiving all sound channel signals, and exports earphone to after postponing to handle, and the impulsive sound when preventing to start shooting damages ear-drum.
Above-mentioned digital decoding box also comprises an automatic input selector, in order to receiving the source of sound of two separate sources, and selects wherein a source of sound, as sound source signal and send digital signal processor to.
Different sources of sound is transmitted by fibre circuit or coaxial line, and input selector is recently more preferably handled from the source of sound that coaxial line transmits for the source of sound that transmits from fibre circuit automatically.
In the above-mentioned digital decoding box, the digital signal processor decodable code has the code signal of Dolby Digital 5.1, Dolby Digital 2.0, Dolby Pro Logic, LPCM (stereo) or DTS form.
Above-mentioned digital decoding box also comprises display unit, in order to show the mode of operation information of digital decoding box.These mode of operation information comprise the codec format of digital decoding box and the sound volume setting of different sound channels.
Above-mentioned digital decoding box wherein also comprises a control panel, is adjusted the state of a control of digital decoding box in order to allow the user import set point.
Above-mentioned digital decoding box also comprises a microcontroller, the mode of operation of control figure signal processor and multichannel digital analog converter.These mode of operations for example comprise volume control and the monitoring of digital signal processor working condition.
Above-mentioned multi-sound-channel earphone comprises headset main body, comprises a chamber body and a keynote chamber bracing frame, main loudspeaker and the first sub-loudspeaker and at least one pair of chamber extension.This keynote chamber bracing frame has most holes, wherein forms an ante-chamber MIXING STUDIO, keynote chamber and tone chamber, back in chamber body.The main loudspeaker and the first sub-loudspeaker, wherein main loudspeaker are positioned on the bracing frame of keynote chamber, and the first sub-loudspeaker place on the protuberance of chamber body, and and form this tone chamber, back between the bracing frame of keynote chamber.This is disposed at the chamber body outside to the chamber extension, and has an opening respectively towards chamber body inside, to form the part of keynote chamber, space by chamber body inner space and chamber extension, adjust formed ante-chamber MIXING STUDIO in the Headphone structure, keynote chamber and the back complex tone field characteristic that forms between the tone chamber according to this, and as the output of multi-sound-channel earphone.
For above-mentioned and other purposes, feature and advantage of the present utility model can be become apparent, a preferred embodiment cited below particularly, and conjunction with figs. are described in detail below.
Description of drawings
Fig. 1 illustrates the utility model preferred embodiment and proposes to have digital decoding box and its utilization schematic diagram that detects the source of sound form.
Fig. 2 show the utility model embodiment propose to have on the digital decoding box that detects the source of sound form look, forward sight, backsight and the left schematic diagram of looking.
Fig. 3 A～Fig. 3 D illustrates front side view, rear side view, front view and the rear view of the multi-sound-channel earphone of the utility model one preferred embodiment respectively.
Fig. 3 E is the fragmentary cross-sectional view and the decomposition diagram of the multi-sound-channel earphone structure of Fig. 3 A.
Fig. 4 is for showing that the utility model embodiment proposes to have the digital decoding box circuit diagram that detects the source of sound form
The number in the figure explanation
130: digital decoding box 130
The 110:DVD player
112: circuit
120: game host
140: earphone
200: the digital decoding box
210: display screen
214: control panel
220: the strong and weak knob of adjusting of signal
222: reset button
224: mute button
230: optic fibre connector input connectivity port
232: coaxial line terminal connectivity port
234: the power input mouth
236: diverter switch
240,242 and 244: the analog signal output mouth
250: multi-sound-channel earphone
300: the multi-sound-channel earphone structure
310: chamber body
312: ante-chamber MIXING STUDIO part
313: keynote chamber bracing frame
314: complex tone chamber body portion
315A～315D: hole
317: protuberance
320,330: the chamber extension
340: main loudspeaker
325,335,350: sub-loudspeaker
402: automatic input selector (Auto Input Selector)
404: digital signal processor (Digital Signal Processing Circuit)
406: six sound channels digital analog converter (6 Channel DAC)
408: six sound channels Earphone Amplifier (6 Channel Headphone Amplifier)
410: supper bass/preposition loudspeaker are selected switching device shifter (Sub/Front Speaker Select Switch)
412: delay circuit (Delay Circuit)
420: pattern of the input checkout gear (Input Format Detector)
430: microcontroller
432: control panel (Control Panel)
440: display apparatus module (Display Module)
450,452,454: pressurizer
Embodiment
Basis is novel to provide a kind of being applicable to receive the digital decoding box with multichannel source of sound.This digital decoding box can the received sound source signal form of interpretation, make different decoding processing after, be sent to earphone and play with 5.1 sound channels.
For example receive from DVD player and export or game host provides, when having the source of sound of 5.1 sound channels, the earphone that is sent to 5.1 sound channels after this digital decoding box is decoded the source of sound of this 5.1 sound channel is play, and the signal of output comprises three groups of signal sources, for example preposition solid (Front) signal, rearmounted three-dimensional (Rear) signal, center channel (Center) signal and supper bass (Sub woofer) signal.
But if the source of sound that receives is the stereo source of sound of two sound channels, for example provide sound source signal with two sound channels from DVD player, linear impulsive coded modulation (Linear Pulse CodeModulation for example, LPCM) during the source of sound of form, digital decoding box provided by the utility model, the at least two group loudspeaker that signal after amplifying is passed in the 5.1 sound channel earphones simultaneously can be play, utilize the different loudspeaker combinations in the 5.1 sound channel earphones, generation has the sound of sound field separating effect, making originally is the stereo source of sound of two sound channels, produces different sound field effects.
Please refer to Fig. 1, propose to have digital decoding box and its utilization schematic diagram of interpretation source of sound form for showing the utility model preferred embodiment.The digital decoding box 130 of present embodiment can with digital versatile disc (Digital Versatile Disc, beneath be called for short " DVD ") player 110 connects through circuits 112, this circuit 112 can be any type of holding wire, and for example optical fiber (Optical Fiber) or coaxial line (Coaxial line) or the like all can.In addition, the digital decoding box 130 of this embodiment also can be connected by various circuit with game host 120.And the output of digital decoding box 130 then is to be connected with the earphone 140 with 5.1 sound channels with the RCA circuit, for example the connectivity port with three splicing ears 144 in the diagram.
Please refer to Fig. 2, for show the utility model embodiment propose to have on the digital decoding box of interpretation source of sound form look, forward sight, backsight and the left schematic diagram of looking.This digital decoding box 200 have can the interpretation sound source signal form, and be presented on the display screen 210.For example showing in display screen 210 " DTS ", then is the multi-channel audio signal source of DTS, and if Dolby Digital (Dolby Digital) form then can show " Dolby ".In addition, if the stereo source of sound of two sound channels then for example can show " Stereo ", if the source of sound of linear impulsive coded modulation (LPCM) then shows " LPCM ".The type of above-mentioned demonstration, mainly the source of sound form that is received on digital decoding box 200 is decided, and is at present comparatively common with above-mentioned type, but is not in a limitative way.
Above-mentioned DTS is the abbreviation of Digital Theater System (Digital Theater System), and a kind of in the multi-channel audio formats is widely used on the DVD audio, and the most general form is 5.1 sound channels.And above-mentioned Dolby Digital (Dolby Digital) form is the technology of company of Dolby Labs of u s company exploitation, is famous multimedia saving format.Dolby Digital or title AC-3 are the most general versions of independent six sound channels, are 5.1 the most well-known sound channel technology.
This digital decoding box 200 also comprises in order to the strong and weak knob 220 of adjusting of the volume of control output volume intensity, comprise control preposition with around the reinforcement of (as shown in the figure " Front+Rear ") or weaken the reinforcement of button, control central authorities (as shown in the figure " Center ") or weaken button or the reinforcement of control supper bass (as shown in the figure " Subwoofer ") or weaken button.And also show present relative strength index on the display screen 210 simultaneously, "+10 ", " 3 " and "+8 " shown in the position of figure number 214 indications.In addition, comprise also that on digital decoding box 200 volume resets the button 222 of (as " the Volume Reset " that schemes to be indicated) and the button 224 of quiet (" Mute ").In the control of digital decoding box 200 for above-mentioned volume, be to adopt memory style, the user was last time remembered for the volume that different sound channel is controlled, and can not disappeared along with powered-down.But if need reset, the button 222 that then only needs to select to reset gets final product.
And at the side of digital decoding box 200, then have two input connectivity ports 230 and 232, wherein import the position that connectivity port 230 connects for optical fiber (Optical Fiber) terminal, input connectivity port 232 then is the position that coaxial line (Coaxial line) terminal connects.In addition, also comprise a power input mouth 234, can be connected to AC power by an AC power (AC in the diagram) socket.And at another side, then be that a mains switch 236 is arranged, can open or close this digital decoding box 200.
At the another side of digital decoding box 200, then have three signal output ports 240,242 and 244.In order to be connected to multi-sound-channel earphone 250 via for example 3.5mm Phone Plug connecting line.This signal source output port 240,242 and 244 provides preposition sound channel (Front), surround channel (Rear), central authorities and the supper bass sound channel (Center/Subwoofer, " C/Sub " as shown in the figure) in 5.1 sound channels for example respectively.
If this digital decoding box 200 receives and for example exports from DVD player or game host is when providing the source of sound with 5.1 sound channels, this digital decoding box the source of sound of this 5.1 sound channel is decoded and amplify after be sent to 5.1 sound channels earphone play, and the signal of output comprises three groups of analog signals, for example preposition solid (Front), rearmounted three-dimensional (Rear), central authorities and supper bass (C/Sub) signal be to multi-sound-channel earphone 250, with generation have sound field around or the audio of multichannel effect.
If the source of sound that digital decoding box 200 receives is the stereo source of sound of two sound channels, when for example having the LPCM sound source signal of two sound channels from Dolby2.0 sound channel or CD disc, the at least two group loudspeaker that this digital decoding box 200 is passed in the 5.1 sound channel earphones after signal decoding can being amplified are simultaneously play, for example the while is transmitted preposition (Front) loudspeaker via signal source output port 240 and 244 and supper bass (C/Sub) loudspeaker are given multi-sound-channel earphone 250, to be different from the preposition loudspeaker group that tradition only sends multi-sound-channel earphone 250 to.So, utilize the spatial configuration of different loudspeaker combinations in the multi-sound-channel earphone 250, produce the sound with sound field separating effect, making originally is the stereo source of sound of two sound channels, produces different sound field effects.
The multi-sound-channel earphone device that the utility model proposed has and can make the multi-sound-channel earphone that extends the tone chamber still have abundant saturated sound field under minimum volume, and multichannel is around the effect of audio.Headset main body comprises its interior keynote chamber bracing frame or dividing plate of chamber body.In chamber body, form an ante-chamber MIXING STUDIO, keynote chamber and tone chamber, back.And main loudspeaker are positioned on keynote chamber bracing frame or the dividing plate, and sub-loudspeaker place the rear of chamber body, and form the tone chamber, back between the bracing frame of keynote chamber therewith.Space in the chamber body is adjusted formed ante-chamber MIXING STUDIO in the Headphone structure, keynote chamber and the back complex tone field characteristic that forms between the tone chamber according to this, and as the output of multi-sound-channel earphone.
Under with reference to Fig. 3 A～Fig. 3 D, front side view, rear side view, front view and the rear view of the multi-sound-channel earphone structure 300 that the multichannel numeral sound field Headphone device of present embodiment adopted is shown respectively.
Please refer to Fig. 3 A～3D, multi-sound-channel earphone structure 300 comprises chamber body 310, main loudspeaker 340 and sub-loudspeaker 350 and chamber extension 320 and 330 at least.310 of this chamber body comprise ante-chamber MIXING STUDIO part 312 and tone chamber, back part 314.And between ante-chamber MIXING STUDIO part 312 inside and tone chamber, back part 314, have a keynote chamber bracing frame 313.Has several holes 315A～315D on the keynote chamber bracing frame 313, wherein hole 315A and 315B are sent to ante-chamber MIXING STUDIO part 312 in order to the sound field that allows tone chamber, back part 314 be produced, so that in ante-chamber MIXING STUDIO part 312, carry out the mixing of sound field, and be sent to 360 direction and listen the hearer.340 on main loudspeaker are between several holes 315A～315D on the keynote chamber bracing frame 313, and ante-chamber MIXING STUDIO part 312 is having certain degree of depth to the direction 360 of listening the hearer, to form certain space as the ante-chamber MIXING STUDIO, this degree of depth is looked closely the requirement of multi-sound-channel earphone structure 300 and is designed.
Back tone chamber part 314 forms a space between the protuberance 317 of keynote chamber bracing frame 313 and chamber body 310 rear sides, in order to form tone chamber, back cavity.Sub-loudspeaker 350 then are fixed on the protuberance 317 of chamber body 310 rear sides.
Around chamber body 310, have chamber extension 320 and 330, and the outlet of its sound field is respectively towards the hole 315C and the 315D of keynote chamber bracing frame 313 in this embodiment.And this keynote chamber bracing frame 313 formed independent tone chamber space size in hole 315C and 315D is the factor that design the utility model proposes the required consideration of earphone main cavity structure, and the width 319C and the 319D that are had then also are the characteristics in the design.And in hole 315C and 315D formed independent tone chamber, the sound field that is produced is sent to ante-chamber MIXING STUDIO part 312, so that carry out the mixing of sound field in ante-chamber MIXING STUDIO part 312, and is sent to 360 direction and listens the hearer.
This can change according to the allocation of space amount in the property calculation chamber body 310 of loudspeaker, just can adjust its size according to the space of keynote chamber, tone chamber, back and ante-chamber MIXING STUDIO.And the outer most edge of chamber extension 320 and 330 optionally disposes sub-loudspeaker, for example the sub-loudspeaker 325 and 335 in the diagram.Certainly, in one embodiment, this chamber extension 320 and 330 outer most edge also can not dispose sub-loudspeaker, only as the extension of keynote chamber body space.In keynote chamber body, this chamber extension 320 and 330 can be done suitable space structure arrangement according to characteristics of signals, just can adjust the space in the keynote chamber body, so can increase the depth and broadness of sound field.Certainly, in an other embodiment, chamber extension 320 and the outlet of 330 sound field also can be towards the tone chambers, back, and this can adjust according to the needs in the design.
The tone chamber of this chamber body 310 and extension sound field constitutes the body of multi-sound-channel earphone structure 300, and give suitable allocation of space in the keynote chamber, make itself and chamber extension 320 and 330 tone chamber's (for example sub-loudspeaker 325 and 335) and the front and back loudspeaker in the chamber (main loudspeaker 340 and sub-loudspeaker 350) formed sound field spaces that extend to outside the chamber body form an amount of space sound field, when compound tone chamber receives a plurality of sound source signal, make it put the collocation of tuning material audio mixing, and form saturated and well-bedded sound field with the ante-chamber MIXING STUDIO in the main cavity.
The multi-sound-channel earphone structure of being mentioned in the present embodiment 300 can be used in the multichannel source of sound that DVD player is exported.For example, main loudspeaker 340 are as preposition main sound channel loudspeaker, and sub-loudspeaker 350 can be used as the supper bass loudspeaker, and center channel loudspeaker and surround channel loudspeaker can be respectively the sub-loudspeaker 325 and 335 that are positioned at chamber extension 320 and 330.Above-mentioned multi-sound-channel earphone structure 300 can become the earphone of the multi-sound-channel earphone left and right sides after coating via shell, listens to so that offer the user.
Fig. 3 E is fragmentary cross-sectional view and the decomposition diagram that the multi-sound-channel earphone structure 300 of the utility model the foregoing description is shown, and similar elements is represented with same-sign.This multi-sound-channel earphone structure 300 comprises chamber body 310, main loudspeaker 340 and sub-loudspeaker 350 and chamber extension 320 and 330 at least.310 of this chamber body comprise ante-chamber MIXING STUDIO part 312 and tone chamber, back cavity part 314, and do the space structure arrangement by chamber extension 320 and 330 according to characteristics of signals, the hole 315C that forms and the interior independent tone chamber part of 315D.From then on can know in the diagram that the sound field outlet of seeing chamber extension 320 and 330 is formed space in the hole 315C of keynote chamber bracing frame 313 and the 315D respectively, so formation can be adjusted the independent tone chamber of space size.
Please refer to Fig. 4, propose to have the digital decoding box circuit diagram of interpretation source of sound form for showing the utility model embodiment.
This digital decoding box comprises automatic input selector (Auto Input Selector) 402, digital signal processor (Digital Signal Processing Circuit) 404, six sound channels digital analog converter (6ChannelDAC) 406, six sound channels Earphone Amplifier (6 Channel Headphone Amplifier) 408, supper bass/preposition loudspeaker are selected switching device shifter (Sub/Front Speaker Select Switch) 410, delay circuit (Delay Circuit) 412, pattern of the input checkout gear (Input Format Detector) 420, microcontroller 430, control panel (Control Panel) 432, display apparatus module (Display Module) 440 and three different supply power voltages 450～454.
At first, input selector (Auto Input Selector) 402 is selected the input source of sound source signal automatically automatically, then is sent to digital signal processor 404.The signal of input can be optical fiber or coaxial source, and meets the signal of S/PDIF or AES form, then is preferential with the fiber-optic signal when all there is signal in two sources.
Above-mentioned S/PDIF form, full name Sony/Philips Digital Interface is as the term suggests be the specification of being formulated with the cooperation of Philips two companies by Sony.The mode of connection of S/PDIF has two kinds, and first kind is adopted RCA unbalanced joint and use the holding wire with 75 ohm, and another kind then is to adopt optical fiber.S/PDIF is the digital signal that the most generally appears in the domestic regulations, for example the digital sound recording of MD (MiniDisk), DVD's around numeral output etc.Be to use the optical fiber connectivity port of S/PDIF form to export in this embodiment with using the fiber-optic signal line.And the AES form, AES/EBU form just is for using 110 ohm shielding twisted wire.
And six sound channels digital analog converter 406 mainly is to convert the decoded digital signal of digital signal processor to analog signal.Microcontroller 430 is responsible for setting digital signal processor 404 and six sound channels digital analog converter 406 mode of operations, comprises volume control, condition monitoring etc., and information such as decoder sound volume setting and codec format are informed the user by display apparatus module 440.Selections such as control panel 432 comprises master volume central authorities, the control of surround channel volume, volume is reset and quiet, and be sent to microcontroller 430.
And six sound channels Earphone Amplifier 408 is responsible for the analog signal of six sound channels digital analog converter 406 outputs is amplified to promote 5.1 sound channel earphones.412 of delay circuits (Delay Circuit) are to be responsible for blocking start moment amplifier to deliver to the impulse current of loudspeaker with protection people ear.
It is 5.1 or 2.0 (stereo) that pattern of the input checkout gear (Input Format Detector) 420 is responsible for the interpretation music format, and transmit control signal 432 according to music format and select switching device shifter 410 to supper bass/preposition loudspeaker, adjust the loudspeaker configuration in order to control, listen to effect to reach the best.Supper bass/preposition loudspeaker select switching device shifter 410 in order to when input source of sound form is 5.1 sound channels, and supper bass will be sent to left and right sides supper bass loudspeaker.When input source of sound form is 2.0 sound channels (stereo), a preceding left side and preceding right output will respectively and be connected to left and right sides supper bass loudspeaker, strengthen 2.0 sound channel music effects, and central authorities and back surround channel then do not have any output.
The utility model proposes a kind of Headphone device, comprise and have digital decoding box and the multi-sound-channel earphone that detects the source of sound form, can connect from the obtained digital tone source of DVD player, for example via optical fiber or coaxial line, also can obtain digital tone source by various player, and the signal that different sound field effects are provided according to the content of source of sound is to multi-sound-channel earphone from for example game host.
Though the utility model with preferred embodiment openly as above; right its is not in order to limit the utility model; any those skilled in the art; in not breaking away from spirit and scope of the present utility model; when doing a little change and retouching, therefore protection range of the present utility model is as the criterion when looking claims person of defining.
Claims (20)
1. a digital decoding box is applicable to be connected to a multi-sound-channel earphone, it is characterized in that, this digital decoding box comprises:
One digital signal processor in order to receiving a sound source signal, and carries out output one decoded signal after the decoding processing;
One multichannel digital analog converter is connected to this digital signal processor, in order to receiving this decoded signal, and transfers an analog signal to;
One multi-sound-channel earphone amplifier is connected to this multichannel digital analog converter, in order to receiving this analog signal, and exports one group of preposition sound channel signal, one group of surround channel signal, a center channel signal and supper bass signal according to this;
One pattern of the input checkout gear is connected to this multichannel digital analog converter, in order to the form of this decoded signal of interpretation, and exports a control signal according to this;
One deferred mount, organize preposition sound channel signal, this group surround channel signal, this center channel signal and this supper bass signal in order to receive this, and export this multi-sound-channel earphone to after postponing to handle, the impulsive sound when preventing to start shooting damages the ear-drum of listening the hearer; And
One supper bass/preposition loudspeaker are selected switching device shifter, be connected to this pattern of the input checkout gear and this deferred mount, organize preposition sound channel signal and this supper bass signal in order to this that receives that this deferred mount exports, and according to this control signal and according to this switching preamplifier sound channel and supper bass signal, organize preposition sound channel signal and when not having this group surround channel signal and this supper bass signal when receiving this, this supper bass/preposition loudspeaker are selected switching device shifter to cut off its supper bass output immediately and will organize preposition sound channel and are exported the interior left and right sides supper bass loudspeaker of this multi-sound-channel earphone respectively to, to strengthen the stereo effect of listening to.
2. digital decoding box according to claim 1 is characterized in that, also comprises an automatic input selector, in order to receiving the source of sound of two separate sources, and selects wherein a source of sound, as this sound source signal and send this digital signal processor to.
3. digital decoding box according to claim 2 is characterized in that, wherein the source of sound of those different-formats is to transmit from fibre circuit or coaxial line.
4. digital decoding box according to claim 2 is characterized in that, wherein this automatic input selector is recently more preferably handled from this source of sound that this coaxial line transmits for this source of sound that transmits from this fibre circuit.
5. digital decoding box according to claim 2 is characterized in that, wherein also comprises an optic fibre input end mouth and a coaxial line road input port, in order to receive the source of sound of those separate sources.
6. digital decoding box according to claim 1 is characterized in that, wherein also comprises a display unit, in order to show the mode of operation information of this digital decoding box.
7. digital decoding box according to claim 1 is characterized in that, wherein also comprises a control panel, is adjusted the state of a control of this digital decoding box in order to allow the user import set point.
8. digital decoding box according to claim 1 is characterized in that, also comprises a microcontroller, the mode of operation of control figure signal processor and this multichannel digital analog converter.
9. digital decoding box according to claim 8 is characterized in that, wherein also comprises a display unit, in order to receive the mode of operation information that this microcontroller transmits.
10. digital decoding box according to claim 8 is characterized in that, wherein also comprises a control panel, is adjusted the state of a control of this microcontroller in order to allow the user import set point.
11. a Headphone device is characterized in that, comprising:
One digital decoding box, in order to receive two different sources of sound, and select this source of sound wherein to handle, and detect the form of this source of sound, and export one group of preposition sound channel signal, one group of surround channel signal, a center channel signal and supper bass signal; And
One multi-sound-channel earphone is organized preposition sound channel signal, this group surround channel signal, this center channel signal and this supper bass signal in order to receive this, sounds according to this.
12. Headphone device according to claim 11, it is characterized in that, wherein should organize preposition sound channel signal, this group surround channel signal, this center channel signal and this supper bass signal, in order to the left front loudspeaker that are sent to this multi-sound-channel earphone, right front loudspeaker, left back loudspeaker, right back loudspeaker, mid-loudspeaker and supper bass loudspeaker.
13. Headphone device according to claim 11, it is characterized in that, wherein export this and organize preposition sound channel signal and when not having this group surround channel signal and this supper bass signal when this digital decoding box, this digital decoding box will be organized preposition sound channel signal and merge the left and right sides supper bass loudspeaker that export this multi-sound-channel earphone to respectively, to strengthen the stereo effect of listening to.
14. Headphone device according to claim 11 is characterized in that, wherein this digital decoding box comprises a display unit, in order to show the mode of operation information of this digital decoding box.
15. Headphone device according to claim 11 is characterized in that, wherein this digital decoding box comprises a control panel, is adjusted the state of a control of this digital decoding box in order to allow the user import set point.
16. Headphone device according to claim 11 is characterized in that, wherein this multi-sound-channel earphone comprises:
One headset main body comprises a chamber body and a keynote chamber bracing frame, and wherein this keynote chamber bracing frame has a plurality of holes, wherein forms an ante-chamber MIXING STUDIO, keynote chamber and tone chamber, back in this chamber body;
One main loudspeaker and one first sub-loudspeaker, wherein these main loudspeaker are positioned on this keynote chamber bracing frame, and these first sub-loudspeaker place on the protuberance of this chamber body, and and form this tone chamber, back between this keynote chamber bracing frame; And at least one pair of chamber extension, be disposed at this chamber body outside, and has an opening respectively towards this chamber body inside, to form the part of this keynote chamber, space by this chamber body inner space and this chamber extension, adjust formed this ante-chamber MIXING STUDIO in this Headphone structure, keynote chamber and the back complex tone field characteristic that forms between the tone chamber according to this, and as the output of this multi-sound-channel earphone.
17. Headphone device according to claim 16 is characterized in that, wherein those hole parts of this keynote chamber bracing frame were in order to being sent to this ante-chamber MIXING STUDIO to form this complex tone field characteristic by the formed sound field in tone chamber, back.
18. Headphone device according to claim 16, it is characterized in that wherein those hole parts of this keynote chamber bracing frame are in order to be sent to this ante-chamber MIXING STUDIO to form this complex tone field characteristic to the chamber extension at the inner formed independent sound field of this chamber body with this.
19. Headphone device according to claim 16 is characterized in that, wherein this is to disposing one second sub-loudspeaker and one the 3rd sub-loudspeaker respectively in the chamber extension, and the sound field that is produced forms independent sound field in this chamber body inner space respectively.
20. Headphone device according to claim 16, it is characterized in that, wherein these main loudspeaker are as preposition main sound channel loudspeaker of this 5.1 multichannel source of sound, these first sub-loudspeaker can be used as supper bass loudspeaker, and these second sub-loudspeaker and the 3rd sub-loudspeaker are respectively as center channel loudspeaker and surround channel loudspeaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201191985U CN201290180Y (en) | 2008-07-15 | 2008-07-15 | Digital decode box and earphone with multi-acoustic-channel sound source format interpretation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201191985U CN201290180Y (en) | 2008-07-15 | 2008-07-15 | Digital decode box and earphone with multi-acoustic-channel sound source format interpretation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201290180Y true CN201290180Y (en) | 2009-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201191985U Expired - Fee Related CN201290180Y (en) | 2008-07-15 | 2008-07-15 | Digital decode box and earphone with multi-acoustic-channel sound source format interpretation function |
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| Country | Link |
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| CN (1) | CN201290180Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102647659A (en) * | 2012-04-16 | 2012-08-22 | 广东好帮手电子科技股份有限公司 | Automatic multi-sound-channel output detection device and detection system with same |
| WO2015165345A1 (en) * | 2014-04-29 | 2015-11-05 | 华为终端有限公司 | Transmission method, mobile terminal, multi-channel earphone, and audio playing system |
| CN105898656A (en) * | 2016-04-28 | 2016-08-24 | 青岛歌尔声学科技有限公司 | Audio processing unit, headset, virtual reality equipment, and audio processing method |
| CN105895111A (en) * | 2015-12-15 | 2016-08-24 | 乐视致新电子科技（天津）有限公司 | Android based audio content processing method and device |
| CN109951767A (en) * | 2019-03-11 | 2019-06-28 | 青岛海信传媒网络技术有限公司 | A kind of audio signal playback method and device |
-
2008
- 2008-07-15 CN CNU2008201191985U patent/CN201290180Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102647659A (en) * | 2012-04-16 | 2012-08-22 | 广东好帮手电子科技股份有限公司 | Automatic multi-sound-channel output detection device and detection system with same |
| CN102647659B (en) * | 2012-04-16 | 2014-12-31 | 广东好帮手电子科技股份有限公司 | Automatic multi-sound-channel output detection device and detection system with same |
| WO2015165345A1 (en) * | 2014-04-29 | 2015-11-05 | 华为终端有限公司 | Transmission method, mobile terminal, multi-channel earphone, and audio playing system |
| US9788096B2 (en) | 2014-04-29 | 2017-10-10 | Huawei Device Co., Ltd. | Transmission method, mobile terminal, multi-channel headset, and audio play system |
| CN105895111A (en) * | 2015-12-15 | 2016-08-24 | 乐视致新电子科技（天津）有限公司 | Android based audio content processing method and device |
| CN105898656A (en) * | 2016-04-28 | 2016-08-24 | 青岛歌尔声学科技有限公司 | Audio processing unit, headset, virtual reality equipment, and audio processing method |
| CN109951767A (en) * | 2019-03-11 | 2019-06-28 | 青岛海信传媒网络技术有限公司 | A kind of audio signal playback method and device |
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