CN203787078U - HDMI digital karaoke reverberator - Google Patents
HDMI digital karaoke reverberator Download PDFInfo
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- CN203787078U CN203787078U CN201420211821.5U CN201420211821U CN203787078U CN 203787078 U CN203787078 U CN 203787078U CN 201420211821 U CN201420211821 U CN 201420211821U CN 203787078 U CN203787078 U CN 203787078U
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Abstract
The utility model discloses a HDMI digital karaoke reverberator comprising a first sound track input port, a second sound track input port, a reverberation processor, a HDMI transceiver, a HDMI input port, a HDMI output port, a D/A converter, and an A/D converter, wherein the HDMI input port, the HDMI output port, the D/A converter, and the A/D converter are connected with the HDMI transceiver. The D/A converter and the A/D converter are connected with the reverberation processor. The HDMI digital karaoke reverberator supports input and output of analog and digital audio signals, is compatible with currently popular audio power amplifiers with HDMI input interfaces, effectively guarantees a high fidelity effect of digital audio, improves user karaoke effect, satisfies a high-standard demand of consumers, and promotes further development of karaoke technology.
Description
Technical field
The utility model belongs to audio area, is specifically related to a kind of HDMI numeral karaok mixer.
Background technology
Music player of the prior art, generally only has simple audio playing function; Recording pen also can only play recording effect; Equipment in KTV amount dealer also only has the effect of reverberation; All function ratio is more single mostly for these equipment, and distortion is also more serious, and user experiences to be improved.
And existing market trendy sound equipment power amplifier on sale is all with HDMI input function, in order to make these sound equipments increase Kara OK function, be necessary to design a kind of support equipment matching.
Utility model content
The purpose of this utility model is to provide a kind of HDMI numeral karaok mixer, in order to solve existing karaok mixer without high-definition digital interface (HDMI), the incompatible popular audio-frequency power amplifier with HDMI input interface at present, and the serious problem of DAB distortion.
The technical solution of the utility model is such:
A kind of HDMI numeral karaok mixer, comprise the first sound channel input port, second sound channel input port and the reverberation processor being connected with described the first sound channel input port and second sound channel input port, described the first sound channel input port, second sound channel input port is first simulated audio signal providing for receiving simulation Karaoke source of sound of correspondence respectively, the second simulated audio signal that microphone provides is also transferred to them respectively in described reverberation processor, described reverberation processor is processed formation the 3rd simulated audio signal to described described the first simulated audio signal receiving and the second simulated audio signal, and the 3rd simulated audio signal is transferred to described sound channel delivery outlet,
Also comprise: HDMI transceiver, be connected to HDMI input port, HDMI delivery outlet, D/A converter and A/D converter on this HDMI transceiver, described D/A converter is also connected with described reverberation processor respectively with A/D converter:
Described HDMI transceiver receives by described HDMI input port the first digital audio and video signals that numeral Karaoke source of sound provides, this first digital audio and video signals forms the 4th simulated audio signal and is transported in described reverberation processor after described D/A converter is processed, described the 4th simulated audio signal and described the second simulated audio signal transfer to described A/D converter after described reverberation processor stereo process forms the 5th simulated audio signal, HDMI transceiver described in described A/D converter converts the 5th received simulated audio signal the second digital audio and video signals to and transfers to described second, and outputed in the equipment of setting by described HDMI delivery outlet.
The utility model is being supported on the basis of existing analogue audio frequency, also by HDMI digital transmission function effective support DAB, support the input and output of simulation, digital audio and video signals simultaneously, the compatible current popular audio-frequency power amplifier with HDMI input interface, and effective guarantee the hi-fi effect of DAB, promote user's effect of playing Karaoka, meet consumer's high standard demand, promoted further developing of Karaoke technology.
Brief description of the drawings
Fig. 1 is block diagram of the present utility model.
Embodiment
In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearer, below in conjunction with accompanying drawing and a preferred embodiment, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
The utility model had both been inputted simulated audio signal, also can input digital audio signal, make user freer in the selection of equipment, also the scope of application of the present utility model is expanded, adapt to equipment more traditional on market, also adapt at present popular equipment, as the digital karaoke machine with HDMI sending function, with the Hi-Fi sound-box of HDMI receiving function etc.
With reference to figure 1, a kind of HDMI numeral karaok mixer, comprises the first sound channel input port, second sound channel input port and reverberation processor; The first sound channel input port is connected with reverberation processor, the first simulated audio signal that this first sound channel input port provides for receiving simulation Karaoke source of sound, and this first simulated audio signal is transferred in reverberation processor; Second sound channel input port is connected with reverberation processor, and this second sound channel input port is used for receiving the second simulated audio signal that microphone provides, and this second simulated audio signal is transferred in reverberation processor; Reverberation processor carries out audio mixing effect process formation the 3rd simulated audio signal to described described the first simulated audio signal receiving and the second simulated audio signal, then the 3rd simulated audio signal is transferred to sound channel delivery outlet, by this sound channel delivery outlet, the 3rd simulated audio signal is transferred in traditional simulation audio amplifier; On the basis of the above, also comprise: HDMI transceiver, and the HDMI input port, HDMI delivery outlet, D/A converter and the A/D converter that are connected with this HDMI transceiver respectively, D/A converter is also connected with reverberation processor respectively with A/D converter:
HDMI transceiver receives by HDMI input port the first digital audio and video signals that numeral Karaoke source of sound provides, this first digital audio and video signals forms the 4th simulated audio signal after D/A converter is processed, D/A converter is transported to the 4th simulated audio signal changing in reverberation processor, the 4th simulated audio signal and the second simulated audio signal form the 5th simulated audio signal through reverberation processor stereo process, reverberation processor will transfer to A/D converter after the 5th simulated audio signal forming, A/D converter converts the 5th received simulated audio signal the second digital audio and video signals to and this second digital audio and video signals is transferred to HDMI transceiver, and outputed in the high-fidelity digital audio amplifier with HDMI receiving function by HDMI delivery outlet, for playing.
Under traditional mode, reverberation processor is to the first simulated audio signal from simulation Karaoke source of sound and carry out audio mixing effect process from the second simulated audio signal of microphone, form the 3rd simulated audio signal, and output in traditional simulation audio amplifier by sound channel delivery outlet;
Under new model, reverberation processor is to the 4th simulating signal source of sound of playing Karaoka from numeral and that form after D/A transforms and carry out audio mixing effect process from the second simulated audio signal of microphone, form the 5th simulated audio signal, and after A/D conversion, output in the high-fidelity digital audio amplifier with HDMI receiving function by HDMI delivery outlet;
Because reverberator of the present utility model has hardware supported to the pattern of two kinds, so the scope of application is wider, especially meet the high standard demand of user to audio, ensure the hi-fi effect of digital audio.
Preferably, between second sound channel input port and reverberation processor, be connected with the first operational amplifier, amplify for sound signal.
Preferably, between reverberation processor and sound channel delivery outlet, be connected with the second operational amplifier, amplify for sound signal.
Preferably, between D/A converter and reverberation processor, be connected with the 3rd operational amplifier, amplify for sound signal.
Preferably, be also provided with power supply interface, this power supply interface is connected in reverberation processor, HDMI transceiver etc., for they provide electric power supply.
It should be noted that, HDMI transferring and receiving apparatus adopts can chip EP92A2E or its family chip, and digital signal abstraction function is contained in the inside, and HDMI sends receiving function etc., and businessman provides total solution, therefore can directly be applied in the utility model; Reverberation processor can adopt all kinds of existing packaged chips such as PT2399, CD2399; directly to apply in the utility model; known; what the utility model was protected is the hardware annexation between circuit; the chip adopting is all also existing the have chip of total solution or packaged chip; can directly use, the pin function introduction providing by it connects.
In addition, as those skilled in the art, be taking PCB as carrier with upper-part, wherein, in order to reduce HDMI signal errors, HDMI PCB cabling must be controlled at 100 Europe mothers, can reduce like this distorted signals; Can adopt 4 layers of PCB design, top layer and low layer are walked signal wire, walk power lead for 2 layers, 3 layers is that GND layer is all filled with copper, digitally with in analog separates, and reduces digital noise and simulation interference, IC power pins all will design shunt capacitance in addition, fewer word pulse interference simulation circuit; Crucial resistance adopts low noise, precision resister, and crystal oscillator and load capacitance also need high precision, the frequency deviation of avoiding temperature variation to cause; Power Management Design part, analog-and digital-power supply need to be isolated by magnetic bead; Operation amplifier circuit uses end noise, the LM358 that stability is high; In whole PCB layout, the responsive part of simulating signal is away from digital circuit.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., all should wrap within the scope of the utility model.
Claims (5)
1. a HDMI numeral karaok mixer, comprise the first sound channel input port, second sound channel input port and the reverberation processor being connected with described the first sound channel input port and second sound channel input port, described the first sound channel input port, second sound channel input port is first simulated audio signal providing for receiving simulation Karaoke source of sound of correspondence respectively, the second simulated audio signal that microphone provides is also transferred to them respectively in described reverberation processor, described reverberation processor is processed formation the 3rd simulated audio signal to described described the first simulated audio signal receiving and the second simulated audio signal, and the 3rd simulated audio signal is transferred to described sound channel delivery outlet,
It is characterized in that, also comprise: HDMI transceiver, be connected to HDMI input port, HDMI delivery outlet, D/A converter and A/D converter on this HDMI transceiver, described D/A converter is also connected with described reverberation processor respectively with A/D converter:
Described HDMI transceiver receives by described HDMI input port the first digital audio and video signals that numeral Karaoke source of sound provides, this first digital audio and video signals forms the 4th simulated audio signal and is transported in described reverberation processor after described D/A converter is processed, described the 4th simulated audio signal and described the second simulated audio signal transfer to described A/D converter after described reverberation processor stereo process forms the 5th simulated audio signal, HDMI transceiver described in described A/D converter converts the 5th received simulated audio signal the second digital audio and video signals to and transfers to described second, and outputed in the equipment of setting by described HDMI delivery outlet.
2. HDMI numeral karaok mixer according to claim 1, is characterized in that, between described second sound channel input port and described reverberation processor, is connected with the first operational amplifier.
3. HDMI numeral karaok mixer according to claim 2, is characterized in that, between described reverberation processor and described sound channel delivery outlet, is connected with the second operational amplifier.
4. HDMI numeral karaok mixer according to claim 3, is characterized in that, is connected with the 3rd operational amplifier between described D/A converter and described reverberation processor.
5. HDMI numeral karaok mixer according to claim 4, is characterized in that, also comprises power supply and/or power supply interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420211821.5U CN203787078U (en) | 2014-04-28 | 2014-04-28 | HDMI digital karaoke reverberator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420211821.5U CN203787078U (en) | 2014-04-28 | 2014-04-28 | HDMI digital karaoke reverberator |
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| Publication Number | Publication Date |
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| CN203787078U true CN203787078U (en) | 2014-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420211821.5U Expired - Fee Related CN203787078U (en) | 2014-04-28 | 2014-04-28 | HDMI digital karaoke reverberator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105245991A (en) * | 2015-10-26 | 2016-01-13 | 汪国印 | Head-mounted karaoke singing earphone and karaoke singing processing method |
| CN105323682A (en) * | 2015-12-09 | 2016-02-10 | 华为技术有限公司 | Digital-analog hybrid microphone and earphones |
| CN105491302A (en) * | 2014-09-16 | 2016-04-13 | 中兴通讯股份有限公司 | Audio signal output method and device, terminal, and system |
| CN107359893A (en) * | 2017-06-20 | 2017-11-17 | 汉桑（南京）科技有限公司 | A kind of wireless micro- cinema system |
-
2014
- 2014-04-28 CN CN201420211821.5U patent/CN203787078U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105491302A (en) * | 2014-09-16 | 2016-04-13 | 中兴通讯股份有限公司 | Audio signal output method and device, terminal, and system |
| CN105245991A (en) * | 2015-10-26 | 2016-01-13 | 汪国印 | Head-mounted karaoke singing earphone and karaoke singing processing method |
| CN105323682A (en) * | 2015-12-09 | 2016-02-10 | 华为技术有限公司 | Digital-analog hybrid microphone and earphones |
| CN105323682B (en) * | 2015-12-09 | 2018-11-06 | 华为技术有限公司 | A kind of digital-analog hybrid microphone and earphone |
| CN107359893A (en) * | 2017-06-20 | 2017-11-17 | 汉桑（南京）科技有限公司 | A kind of wireless micro- cinema system |
| CN107359893B (en) * | 2017-06-20 | 2019-10-11 | 汉桑（南京）科技有限公司 | A kind of wireless micro- cinema system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180626 Address after: 518000 Guangdong Shenzhen Baoan District Fuyong Street Peace community Yonghe Road 45, Jinfeng Industrial Zone 1 4 floor. Patentee after: Shenzhen star fan Entertainment Culture Co., Ltd. Address before: 518000 Guangdong Shenzhen Baoan District Baocheng business two road Jinwei brewery opposite 72 District phase 1 factory six floor. Patentee before: Evik Technology Co., Ltd. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 Termination date: 20200428 |
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| CF01 | Termination of patent right due to non-payment of annual fee |