CN201025720Y - TV set Kara OK accompanying system - Google Patents
TV set Kara OK accompanying system Download PDFInfo
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- CN201025720Y CN201025720Y CNU2006200161235U CN200620016123U CN201025720Y CN 201025720 Y CN201025720 Y CN 201025720Y CN U2006200161235 U CNU2006200161235 U CN U2006200161235U CN 200620016123 U CN200620016123 U CN 200620016123U CN 201025720 Y CN201025720 Y CN 201025720Y
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Abstract
The utility model discloses a Karaoke vocal accompaniment system of TV set, which comprises at least a microphone which is for changing the sound into a voice analog signal. The utility model is characterized in that the utility model comprises a Karaoke module which is respectively connected with the microphone, CPU of the TV set and an audio treatment circuit of the TV set. The control signal which is output by the CPU of the TV set controls the Karaoke module to process the Karaoke audio mixing and audio effect treatment of the voice analog signal and the TV digital audio signal and output the Karaoke analog audio signal. The audio treatment circuit of the TV set processes the power amplification and the sound reduction treatment of the Karaoke analog audio signal. The utility model can realize the inner arrangement of the Karaoke system in TV set by increasing the Karaoke module and a small quantity of change of the original circuit, which saves the cost and has the advantage of simple operation and convenient use.
Description
Technical field
The utility model relates to the Karaoke audio signal processing technique, relates in particular to a kind ofly can be built in television set, makes full use of the karaoke accompaniment system that the intrinsic resource of television set forms.
Background technology
Existing nearly 30 years of the birth of karaoke accompaniment system is historical, and early stage Karaoke circuit is comparatively simple, mainly is made up of microphone amplifying circuit and music signal hybrid circuit.Having increased again with the BBD time delay device later is the reverberation circuit of core.The mid-90, along with developing rapidly of audio digital signals treatment technology, audio signal processing technique in the Karaoke field has also obtained significant progress, the index of the signal to noise ratio of new generation digital delay chip, the distortion factor, frequency response and dynamic range has just obtained using widely in all kinds of sound appliances all on the BBD delay chip therefore very soon.Nowadays, Karaoke has become the indispensable function of sound appliances such as AV power amplifier.
General Karaoke accompanying video circuit structure is made up of microphone, sound accompaniment machine, loud speaker three parts as shown in Figure 1.Sound wave is converted to the signal of telecommunication through microphone, through front end circuit, reverberation system, power amplifier three section processes of accompanying video, restores the sound wave that people's ear can be heard by loud speaker again.This is that present consumer uses maximum a kind of karaoke accompaniment system, the shortcoming that this karaoke machine that independently is wholely set exists is: member is many, use is inconvenient, cost is high, especially for the still inaccessiable area of those economic strengths, purchase the good selection that a karaoke machine is not a kind of economy separately concerning them.
The utility model content
Technical problem to be solved in the utility model is: overcome the shortcoming that general Karaoke sing accompanying system member is many, use is inconvenient, cost is high, provide a kind of intrinsic resource of television set of utilizing, with the matching used karaoke accompaniment of television set system.
The utility model is to solve the problems of the technologies described above the technical scheme that is adopted to be:
A kind of television set karaoke accompaniment system, comprise at least one microphone, described microphone is used to convert tones into voice analog signal, it is characterized in that: comprise a Karaoke module, described Karaoke module respectively with microphone, the CPU of television set and tv audio treatment circuit are connected, control described Karaoke module with voice analog signal and Television Digital audio signal play Karaoka audio mixing and audio processing by the control signal of television set CPU output, output Karaoke simulated audio signal, and carry out power amplifier and sound-reducing processing by the tv audio treatment circuit simulated audio signal of will play Karaoka.
Described karaoke accompaniment system, wherein: described microphone is built in the system for TV set with the Karaoke module.
Described karaoke accompaniment system, wherein: described Karaoke module is made up of audio digital signals process chip and DA conversion chip and peripheral circuit, described audio digital signals process chip is connected with microphone, television set CPU, tv audio treatment circuit and DA conversion chip respectively, be used for and will handle from the voice analog signal of microphone with from play Karaoka audio mixing and audio of the Television Digital audio signal of tv audio treatment circuit, output Karaoke digital audio and video signals is given the DA conversion chip; Described DA conversion chip is connected with the tv audio treatment circuit, is used for converting the Karaoke digital audio and video signals to the Karaoke simulated audio signal, and exports to the power amplifier in the tv audio treatment circuit.
Described karaoke accompaniment system, wherein: described audio digital signals process chip adopts the YSS915 chip, the CS of YSS915 chip end, SCK end, CDI end, CDO end link to each other with YCS#, YCLK#, YCDI, the YCDO signal output part of the CPU of television set respectively, its SDSY end, DI end, BCI end are connected with AU-LRCK end, AU-DI end, the AU-BCK end of tv audio treatment circuit, and its MIC-IN end links to each other with microphone; Described DA conversion chip adopts the WM8761 chip, the LRCN end of WM8761 chip, DIN end, BCKIN end link to each other with L/R end, DO end, the BCO end of YSS915 chip respectively, and its left and right sides audio output connects power amplifier input in the tv audio treatment circuit.
The beneficial effects of the utility model are: made full use of existing functional module in the television set, only needing increases the Karaoke part of module and primary circuit is done a spot of change just can realize the television internal karaoke OK system, both provided cost savings, had advantage simple to operate, easy to use again.
Description of drawings
Fig. 1 is general Karaoke accompanying video circuit structure block diagram;
Fig. 2 is the utility model karaoke accompaniment circuit system and connected mode schematic diagram;
Fig. 3 is a YSS915 chip internal functional block diagram;
Fig. 4 is YSS915 chip signal flow graph when realizing Kara OK function;
Fig. 5 is the electrical schematic diagram when adopting YSS915 chip and WM8761 chip as the Karaoke module.
Embodiment
With embodiment the utility model is described in further detail with reference to the accompanying drawings below:
The technical program makes full use of the inner existing functional module of television set, increases a Karaoke processing module on circuit, and outside needs to increase a microphone and just can realize the function that karaoke OK system is same.As shown in Figure 2, the Karaoke module respectively with microphone, the CPU of television set and tv audio treatment circuit are connected, control the running status of described Karaoke module by the control signal of television set CPU output, realize every function of Karaoke, the Karaoke module is used for the voice analog signal of microphone output and the Television Digital audio signal of tv audio treatment circuit output play Karaoka audio mixing and audio processing, output Karaoke simulated audio signal, and carry out power amplifier and sound-reducing and handle by the tv audio treatment circuit simulated audio signal of will playing Karaoka, realize voice reproduction.The Karaoke module is made up of two chip blocks and peripheral circuit, chip piece is the audio digital signals process chip, this chip is used for and will handles from the voice analog signal of microphone with from play Karaoka audio mixing and audio of the Television Digital audio signal of tv audio treatment circuit, output Karaoke digital audio and video signals, another chip block is the DA conversion chip, be used for converting the Karaoke digital audio and video signals to the Karaoke simulated audio signal, and the power amplifier of exporting in the tv audio treatment circuit carries out subsequent treatment, the realization voice reproduction.Typical utilization is that the audio digital signals process chip adopts the YSS915 chip, DA conversion chip employing WM8761 chip.The built-in function block diagram of YSS915 chip as shown in Figure 3, YSS915 inside has an analog to digital converter that supplies microphone signal to use, and required reverberation, modified tone, the song of built-in karaoke system suppresses, processing capacities such as Karaoke is followed and sung, surround sound, can be used in colourful mode.Except above-mentioned Kara OK function, YSS915 also can use other multiple home theater pattern.Under family's theater mode, can supply to appreciate to film or the additional multiple surround sound effect of music program.Signal flow is as shown in Figure 4 constantly realizing Kara OK function, Fig. 4 first half is the music signal processing section, comprise that input attenuator (Input Fader), sound are eliminated (VoiceCancel), master control (Key), tone is regulated (Tone Control), strengthened (Surround), software quiet (Soft Mute) around sound, the function of music signal processing section is as follows: input attenuator carries out certain range of decrease to input signal, excessive to prevent input signal, influence the job stability of circuit, even damage circuit; Sound is eliminated and can effectively be eliminated the middle information of sound field of carrying in the CD stereophonic signal; Master control is controlled volume; Tone regulate can regulate height (5k Hz), in the gain of (1k Hz), low (200Hz) three frequency ranges; Can effectively strengthen the spatial information that music signal carries around the sound enhancing; The quiet realization mute function of software; Fig. 4 Lower Half is the microphone signal processing section, comprise that analog-to-digital conversion (A/D), input detect (MIC Level detection), input attenuator, the voice echo is handled (MicrophoneEcho), strengthened around sound, microphone signal processing section function is as follows: the analog signal of analog-to-digital conversion conversion microphone input is a digital signal; The size of microphone input range is detected in the input test section; Input attenuator carries out certain range of decrease to input signal, and is excessive to prevent input signal, influences the job stability of circuit, even damages circuit; It is the module that produces the voice echo that the voice echo is handled; Can effectively strengthen the spatial information that music signal carries around the sound enhancing.Music signal processing section and microphone signal the processing section music signal after the independent process and microphone signal are separately mixed and are obtained final output signal, and software quiet (Soft Mute) can be realized the mute function of whole Karaoke module.The function of this chip and as the Karaoke utilization for those skilled in the art know, do not repeat them here.
When the Karaoke module adopts YSS915 and WM8761 two chip blocks to make up to realize, connection between the chip and chip are connected as shown in Figure 5 with the concrete of television set interlock circuit, the voice analog signal of microphone input is through the resistance AR160 of peripheral circuit and 14 pin of AR159 to YSS915 chip, be converted to voice digital signal by the built-in AD of YSS915,1 of YSS915,2, the DI end of 28 pin, the BCI end, the SDSY end is respectively at the digital audio and video signals output terminals A U-DI end of tv audio digital processing circuit, AU-BCK end and AU-LRCK end link to each other, voice digital signal and Television Digital audio signal play Karaoka audio mixing and audio processing; The YCS# of the CPU that television set just had originally, YCLK#, YCDI, YCDO signal output part link to each other with CS end, SCK end, CDI end, the CDO end of YSS915 chip, control the YSS915 running status, realize every function of Karaoke.YSS915 digital output and DA transducer WM8761 input port join, the L/R end, DO end, the BCO end that are YSS915 link to each other with LRCN end, DIN end, the BCKIN end of WM8761 respectively, convert analog signal to through WM8761, output signal K_L and K_R are a simulation left side/right audio signals, export to the power amplifier in the tv audio treatment circuit, directly carry out subsequent treatment, carry the voice playback system by television set and realize voice reproduction.YSS915 and WM8761 two chip power AVAA, VDD take from the inner 5V power supply of television set.Each interface definition is as follows:
AU_LRCK---sample frequency clock input
AU_D1---serial data input
AU_BCK---bit is middle input
K_R---simulation R channel output
K_L---simulation L channel output
SYS_RST---system reset
YCS#---holotype is selected input
YCLK#---serial clock input
YCDI---serial data input
YCDO---serial data output
Wherein: YCS#, YCLK#, YCDI, YCDO are the control signals of control YSS915, and inner original CPU draws by television set.
Microphone is built in the system for TV set with the Karaoke module in the technical program, with television set.Be wholely set, television set and karaoke machine are united two into one, reduced consumer's acquisition cost this moment, and simple to operate, easy to use; Certainly microphone and the also split setting separately of Karaoke module is with the supporting use of television set.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection range of the utility model claims.
Claims (4)
1. television set karaoke accompaniment system, comprise at least one microphone, described microphone is used to convert tones into voice analog signal, it is characterized in that: comprise a Karaoke module, described Karaoke module respectively with microphone, the CPU of television set and tv audio treatment circuit are connected, control described Karaoke module with voice analog signal and Television Digital audio signal play Karaoka audio mixing and audio processing by the control signal of television set CPU output, output Karaoke simulated audio signal, and carry out power amplifier and sound-reducing processing by the tv audio treatment circuit simulated audio signal of will play Karaoka.
2. karaoke accompaniment according to claim 1 system is characterized in that: described microphone is built in the system for TV set with the Karaoke module.
3. karaoke accompaniment according to claim 1 and 2 system, it is characterized in that: described Karaoke module is made up of audio digital signals process chip and DA conversion chip and peripheral circuit, described audio digital signals process chip is connected with microphone, television set CPU, tv audio treatment circuit and DA conversion chip respectively, be used for and will handle from the voice analog signal of microphone with from play Karaoka audio mixing and audio of the Television Digital audio signal of tv audio treatment circuit, output Karaoke digital audio and video signals is given the DA conversion chip; Described DA conversion chip is connected with the tv audio treatment circuit, is used for converting the Karaoke digital audio and video signals to the Karaoke simulated audio signal, and exports to the power amplifier in the tv audio treatment circuit.
4. karaoke accompaniment according to claim 3 system, it is characterized in that: described audio digital signals process chip adopts the YSS915 chip, the CS of YSS915 chip end, SCK end, CDI end, CDO end link to each other with YCS#, YCLK#, YCDI, the YCDO signal output part of the CPU of television set respectively, its SDSY end, DI end, BCI end are connected with AU-LRCK end, AU-DI end, the AU-BCK end of tv audio treatment circuit, and its MIC-IN end links to each other with microphone; Described DA conversion chip adopts the WM8761 chip, the LRCN end of WM8761 chip, DIN end, BCKIN end link to each other with L/R end, DO end, the BCO end of YSS915 chip respectively, and its left and right sides audio output connects power amplifier input in the tv audio treatment circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200161235U CN201025720Y (en) | 2006-12-01 | 2006-12-01 | TV set Kara OK accompanying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200161235U CN201025720Y (en) | 2006-12-01 | 2006-12-01 | TV set Kara OK accompanying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201025720Y true CN201025720Y (en) | 2008-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2006200161235U Expired - Fee Related CN201025720Y (en) | 2006-12-01 | 2006-12-01 | TV set Kara OK accompanying system |
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| CN (1) | CN201025720Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101902552A (en) * | 2009-06-01 | 2010-12-01 | 海尔集团公司 | Signal source and television with same |
| CN101867691B (en) * | 2009-04-16 | 2012-05-23 | 鸿富锦精密工业（深圳）有限公司 | Set top box |
| CN103916683A (en) * | 2014-04-21 | 2014-07-09 | 深圳市兰丁科技有限公司 | OTT device with karaoke function |
| CN104851441A (en) * | 2015-05-15 | 2015-08-19 | 小米科技有限责任公司 | Method of realizing karaoke, device and home audio |
| WO2015131591A1 (en) * | 2014-09-16 | 2015-09-11 | 中兴通讯股份有限公司 | Audio signal output method, device, terminal and system |
| CN106535047A (en) * | 2016-12-21 | 2017-03-22 | 深圳Tcl数字技术有限公司 | Audio processing device and method |
| CN107566955A (en) * | 2017-09-28 | 2018-01-09 | 广州国光音频科技有限公司 | A kind of K sings audio-visual digital reverberation system |
| CN110223707A (en) * | 2019-07-10 | 2019-09-10 | 青岛海信电器股份有限公司 | Display device |
| CN112399244A (en) * | 2019-08-18 | 2021-02-23 | 海信视像科技股份有限公司 | Sound processing method of display equipment and display equipment |
-
2006
- 2006-12-01 CN CNU2006200161235U patent/CN201025720Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101867691B (en) * | 2009-04-16 | 2012-05-23 | 鸿富锦精密工业（深圳）有限公司 | Set top box |
| CN101902552A (en) * | 2009-06-01 | 2010-12-01 | 海尔集团公司 | Signal source and television with same |
| CN103916683A (en) * | 2014-04-21 | 2014-07-09 | 深圳市兰丁科技有限公司 | OTT device with karaoke function |
| CN103916683B (en) * | 2014-04-21 | 2017-08-25 | 深圳市兰丁科技有限公司 | Have the OTT devices of Kara OK function |
| WO2015131591A1 (en) * | 2014-09-16 | 2015-09-11 | 中兴通讯股份有限公司 | Audio signal output method, device, terminal and system |
| CN104851441A (en) * | 2015-05-15 | 2015-08-19 | 小米科技有限责任公司 | Method of realizing karaoke, device and home audio |
| CN104851441B (en) * | 2015-05-15 | 2018-03-09 | 小米科技有限责任公司 | Realize the method, apparatus and home audio of Karaoke |
| CN106535047A (en) * | 2016-12-21 | 2017-03-22 | 深圳Tcl数字技术有限公司 | Audio processing device and method |
| CN107566955A (en) * | 2017-09-28 | 2018-01-09 | 广州国光音频科技有限公司 | A kind of K sings audio-visual digital reverberation system |
| CN110223707A (en) * | 2019-07-10 | 2019-09-10 | 青岛海信电器股份有限公司 | Display device |
| CN112399244A (en) * | 2019-08-18 | 2021-02-23 | 海信视像科技股份有限公司 | Sound processing method of display equipment and display equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080220 Termination date: 20141201 |
|
| EXPY | Termination of patent right or utility model |