CN1144376A - Method and device with image repetition and simulating conversation function - Google Patents
Method and device with image repetition and simulating conversation function Download PDFInfo
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- CN1144376A CN1144376A CN 94109361 CN94109361A CN1144376A CN 1144376 A CN1144376 A CN 1144376A CN 94109361 CN94109361 CN 94109361 CN 94109361 A CN94109361 A CN 94109361A CN 1144376 A CN1144376 A CN 1144376A
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Abstract
The present invention dislcoses a method possessing the functions of image repetition and simulating conversation and its apparatus. It includes a recognition and control device and audiovisual recording media, such as video tape, etc. which are processed and have overlayed role code signals in blanking period of the video signal field. Said apparatus can recognize the role code from the above-mentioned video signals and translate it, and according to the switching condition can excise or reserve the voice of some role, and at the same time user can simulate the voice of said role by using microphone so as to implement image repetition and simulating conversation. Its operation is simple and convenient, and its effect is true to life.
Description
The present invention relates to coding and computer utility.
At present, audio-visual technique has been widely used in this field of language teaching.Its working method is to be connected with looking tone frequency channel wire between acoustic image playing device and monitor, or connects with radio frequency line, and medium for audio and video recording is play at playing device, so image on this medium and voice signal just can obtain reappearing on monitor.Foreign language teaching adopts this mode, and is vivid, and the sight sense is strong, can make the reader in hearing, with reading, being trained aspect vocabulary memorization or the grammer.But this mode can't be built the reader is participated in person, and the language environment of speaking has in person limited effective expansion of dialogue exercise.
The object of the present invention is to provide a kind of a kind of method and device thereof of on the basis of aforesaid way, developing with image repetition and simulation dialogue function, used medium for audio and video recording record has the sound of talking with between the treated role personage, picture signal, the user is by an identification control device, can arbitrarily excise or repertoire in participate in certain role personage's of dialogue sound, the sound that utilizes microphone to simulate this role simultaneously participates in dialogue, and whole process replaces the sound of certain role in the program to participate in the dialogue just as the user.
Technical scheme of the present invention is achieved like this:
A kind of method and device with image repetition and simulation dialogue function
It is characterized in that this method comprises the steps: 1) prerecord a kind of medium for audio and video recording that can play, make the coded pulse that is applied this role in the vertical blanking period of role personage in this medium vision signal before beginning to talk and the some predetermined vertical blanking period afterwards thereof; 2) play above-mentioned medium for audio and video recording, simultaneously its vision signal branch is made two-way, send monitor and said apparatus respectively, i.e. identification control device; 3) identification control device is isolated field system chronizing impulse and role's coded pulse, and send the microprocessing systems of tape storage with it; 4) microprocessing systems executive routine, and pass through a) role's coded pulse to be translated into role's numbering; B) read in the switching signal that role's sound is controlled; C) output controlled quentity controlled variable, the break-make of control role personage's sound signal; 5) microphone pickup, signal send monitor after amplifying, and makes its reproduced image and forms the simulation dialogue.
Technical program of the present invention also lies in a kind of method and device thereof with image repetition and simulation dialogue function, it is characterized in that this device comprises following system: 1) field synchronization separation circuit system, in order to the field system chronizing impulse in the separating video signal, give microprocessing systems; 2) coding detecting circuit system in order to the role's coded pulse in the separating video signal, gives microprocessing systems; 3) role's sound gauge tap, by user's configuration switch state, signal send microprocessing systems; 4) audio switch Circuits System is accepted the audio frequency output of playing device, and its output terminal is received the audio input end of monitor or radio-frequency modulator, and its control end is then linked microprocessing systems; 5) microphone and audio amplifier circuit system in order to pick up user's voice signal, give monitor or radio-frequency modulator after the amplification; 6) microprocessor of band internal memory, follow procedure is handled above-mentioned input signal, with its output quantity role's sound signal is carried out break-make control.
Technical scheme of the present invention is to realize like this, a kind of method and device thereof with image repetition and simulation dialogue function, it is characterized in that being superimposed with on the said medium for audio and video recording corresponding role's coded pulse, all be superimposed upon in the vertical blanking period of vision signal usually with its role personage.
In order to realize technical scheme of the present invention, can adopt dual mode to be characterized with the distinct pulse widths of pulse number with same pulse width or individual pulse for role's's (signal) coding.Certainly, also can adopt other mode that is suitable for to encode, correspondingly on the structure of said apparatus, should make the decoding design.Code Design should satisfy a plurality of roles' needs, but generally speaking, role personage is still in the majority with two.
In order to realize image repetition and simulation dialogue, the role encodes except role personage, also should comprise the coding of the non-role's voice signal when no role talked with.
The realization of technical solution of the present invention comprises that also the coding detecting circuit in the said apparatus is made up of clamp circuit and comparator circuit.This clamp circuit at a fixed level, is input to comparer with another fixed level with an audio video synchronization pincers again, and the output of comparer is then received microprocessing systems.
In order to realize image and simulation dialogue, must use treated medium for audio and video recording, this recording medium can be that record-reproduce head also can be a compact video disc.
Compared with prior art, the advantage of method provided by the invention and device thereof is conspicuous, effect true to nature, and the language environment of reality will provide great convenience for the learner.This device can use separately, also its main line can be placed in playing device or the monitor.
Optimum implementation of the present invention is seen embodiment.Below, in conjunction with the accompanying drawings embodiment is described in further detail.Fig. 1 is the vertical blanking period supercomposed coding synoptic diagram of the embodiment of the invention 1.Fig. 2 is the embodiment of the invention 1 a specific coding table.Fig. 3 is a system of the present invention connection layout.Fig. 4 is the embodiment of the invention 1 an identification control device block diagram.Fig. 5 is the embodiment of the invention 1 identification control device circuit theory diagrams.Fig. 6 is a controlled quentity controlled variable output logic table.Fig. 7 is embodiment 1 coding translation and a control program block diagram.Fig. 8 is the vertical blanking period supercomposed coding synoptic diagram of embodiment 2.Fig. 9 is embodiment 2 coding translation and control program block diagrams.
Fig. 1 is the vertical blanking period supercomposed coding synoptic diagram of the embodiment of the invention 1.In fact, conventional acoustic can superpose into satisfactory additional signal and not influence picture quality as the vertical blanking period of the vision signal of recording medium recording, the present invention utilizes this point just, taked during program in some predetermined vertical blanking period stack to advance the practice of specific coded pulse recording dialogue, purpose is to adopt these coded pulse representative dialogue both sides or is which role is in speech in many ways in certain period, give these role personage's numberings in advance, different role's numberings is just represented in different coded pulses.In the dialogue program, for the long situation that does not have role personage's speech of time,, be called non-role state as the chipping in or some background sounds, music etc. of other people during dialogue between two people, to when identification, just can not obscure with specific coding representative with the situation of role personage's speech yet.
Present embodiment is to chant wide pulse number and represent these situations with identical.A concrete layout as shown in Figure 2, non-role state is represented that by 1 pulse role 1 is represented that by 2 pulses by that analogy, role n is represented by (n+1) individual pulse.Because most dialogues launch between two people, so most cases only divides role 1 and role 2, present embodiment promptly belongs to this example, and corresponding which the role personage of which numbering, then is artificial appointment fully.
Coded pulse among Fig. 1 (2) is superimposed upon in the vertical blanking period (3) of TV signal (1), and the coded pulse amplitude is 1V
P-p, can mate with standard television signal.
The particular location of coded pulse (2) stack is in the vertical blanking period of the vertical blanking period of representative situation zero hour and later predetermined number.
Fig. 3 is a system of the present invention connection layout.Medium for audio and video recording of the present invention is put into playing device (4) and is play, the looking of playing device (4), audio frequency output connect the looking of identification control device (5), audio input end, the looking of this identification control device (5), audio frequency output connect the looking of monitor (7) or radio-frequency modulator (6), audio input end, and the output of radio-frequency modulator (6) connects the connection socket for antenna of monitor (7).Microphone (8) connects the Microphone of identification control device (5).
Figure (4) is the identification control device block diagram of embodiment 1.Identification control device is made up of field synchronization separation circuit (15), coding detecting circuit (9), role's sound gauge tap circuit (10), microprocessing systems (11), audio switch circuit (12), microphone pre-amplification circuit (13), mixing amplifying circuit (14).The vision signal of playing device output is divided into two-way, and one the tunnel directly gives monitor or modulator; One the tunnel is divided into two-way again, wherein one the tunnel isolates field system chronizing impulse through field synchronization separation circuit (15) and delivers to microprocessing systems (11).One tunnel encoded detecting circuit (9) is separated coded signal from vision signal, send microprocessing systems (11).Microprocessing systems (11) executive routine, coded signal is translated into role's numbering, read in the state of role's sound gauge tap (10), give the control end of audio switch circuit (12) through logic determines output controlled quentity controlled variable, the audio frequency output that is input as playing device of audio switch circuit (12), the output of audio switch circuit (12) is as the road input that mixes amplifying circuit (14), another road is input as the output of microphone pre-amplification circuit (13), and the output that mixes amplifying circuit (14) connects the audio input end of monitor or modulator.
The user is by the setting to role's sound gauge tap (10), notice microprocessing systems (11) keeps or excises certain role personage's spoken sounds, utilize microphone talk simultaneously, and in the loudspeaker of monitor, hear the sound of controlling oneself, finish the simulation dialog procedure.If all keep role personage's sound, then can appreciate all intact dialogue program of image and sound.
Fig. 5 is the identification control device circuit theory diagrams of embodiment 1.Entire circuit comprises:
1. the field system chronizing impulse separation circuit formed of the composite sync separation circuit be made up of C1, R1, BG1, R2 of field synchronization separation circuit (15) and double D trigger 74LS74, D1, R3, C2 constitutes.Utilize the horizontal synchronizing pulse characteristics different, isolate field system chronizing impulse with duty time-delay partition method with the field system chronizing impulse dutycycle.Delay time Δ t=R3C2 must satisfy 4.7us＜Δ t＜30us, and this is the explanation dutycycle characteristic time.Isolated field system chronizing impulse is delivered to 8751 interruption application mouth.Each field system chronizing impulse causes interruption, and the arrival of notice microprocessing systems (11) vertical blanking period is for the translation coding is prepared.
2. the video clamp circuit be made up of C7, D3, R16, D2 of coding detecting circuit (9) and comparer LM393 (20) and one provide fixedly by what variable resistor R17 constituted that the comparative level circuit constitutes.Because the diode D2 0.7V pressure drop of having an appointment, so if the direct ground connection of reference point E, then at-0.7V, therefore make E point current potential with R16, D3 is 0.7V to the vision signal synchronous head by pincers, like this synchronous head just by pincers on 0V, for a benchmark relatively is provided between signal.
Because the coded pulse amplitude is 1V
P-pIf so at certain level between 0V and 1V of field blanking interval, here select 0.6V, make comparisons with vision signal,, and be higher than comparative level 0.6V because coded pulse 1V is higher than the blanking level 0V of vision signal, and comparative level 0.6V is higher than field blanking level 0V, so the time, the state of comparer (20) output has just reflected coded pulse, that is is equivalent to coded pulse is separated from vision signal.This signal is the inversion signal of role's coded pulse just, is sent to microprocessing systems T0 mouth.
3. role's sound gauge tap circuit (10) is made up of K1, K2, R4, R5, generally only establishes two role's sound gauge tap, because the great majority dialogue launches between two roles.K1 is role 1 a sound gauge tap, and K2 is role 2 a sound gauge tap.K1, K2 are connected on 8751 the P1 mouth that uses position prosecutor formula, and R4, R5 are pull down resistor, and when guaranteeing switch opens, P10 and P11 are low level.When the K1 closure, on behalf of the user, P10=" 1 " want to excise role 1 sound; When K1 opens, P10=" 0 " represent the user to want to keep role 1 sound, K2 also is like this.
4. microprocessing systems (11) adopts 8751, the EPROM of inner band 2K, and interpret role coding and control program storage are wherein.R6, C3, K3 form reset circuit.After the system reset, auto-initiation waits for that then field system chronizing impulse interrupts.After interrupting application, interrupt routine is translated the coded signal of T0 mouth input, and according to the state of K1 and K2, through logic determines output controlled quentity controlled variable " 0 " or " 1 ".Output " 0 " representative keeps sound, output " 1 " representative excision sound.Logical relation as shown in Figure 6.Discern currently when being non-role state, unconditionally keep sound; When being role 1, and when the K1 closure, promptly P15=" 1 " then excises sound; When K1 opens, export P15=" 0 ", keep sound.Other role is as the same.When without any coded signal, original controlled quentity controlled variable is constant.
Base when C4, C5, Q1 form crystal oscillating circuit and provide for microprocessor 8751.
5. audio switch circuit (12) is made up of BG2, BG3, R10, R11, R12, R13.Sound signal is delivered to the BG3 base stage from the input of B point after the C6 stopping direct current.When P15=" 0 ", BG2 ends, and BG3, R12, R13 form emitter follower, and C point current potential is pulled to+5V, BG3 conducting, BG3 emitter output audio signal; When P15=" 1 ", the BG2 conducting, C point ground connection, BG3 ends, and the output of BG3 emitter no signal is equivalent to excise voice signal this moment.
6. pre-amplification circuit (13) is made up of R7, R8 and amplifier LM324 (21), and enlargement factor is by R7 and the decision of R8 ratio.
7. mixing amplifying circuit (14) is made up of R14, R15, R9 amplifier LM324 (22), its road is input as the output of audio switch circuit (12), one the tunnel is the output of pre-amplification circuit (13), mixes the audio input end that amplifying circuit is exported to monitor or radio-frequency modulator.
Fig. 7 is embodiment 1 coding translation and a control program block diagram.
After the start, the master routine Automatic Cycle is carried out initialize routine A1, to a clock counter T0 and an interruption application mouthful into initialization, T0 is set to counting mode and allows into to interrupt, and putting into is the edge triggering mode, waits for the interruption application then.
The negative edge of field system chronizing impulse triggers into and interrupts, and carries out interruption subroutine.At first, with the zero clearing of counter initial value, open counter T0 then.Some microseconds of delaying time are closed counter T0 then, are intended to guarantee only in vertical blanking period, and be to open T0 in coding time that may superpose, count value in the counter T0 is exactly the number of coded pulse like this, represent the role to number or non-role state, and interference that can subject image signal.If counting is to be provided with coded signal in the zero explanation vertical blanking period.
Program F1 translates into role numbering with the count value of T0, reads P10 and P11 state then, press the logical relation of Fig. 6 and export controlled quentity controlled variable, with the P15 set or " 0 ".
Master routine is returned in end of subroutine, and master routine continues circulation and carries out initialize routine A1, waits for the arrival of next field system chronizing impulse.
Use the present invention to simulate dialogue, as long as the system of connecting puts into playing device with medium for audio and video recording of the present invention and plays, monitor will reappear the image and the sound of dialogue program.If the user wants to simulate role 1 speech, with the K1 closure, monitor has only image and does not have role 1 sound so, the user utilizes microphone can simulate role 1 speech, as representing role 1 and other part dialog, if want to imitate role 2, method is similar.Disconnect K1 nothing but, closed K2 exactly.
A kind of coding should detect hardware circuit and a coding translation program by corresponding a kind of coding, and in embodiment 2, hardware circuit can be the same with embodiment 1, and not being both the coding translation program must otherwise designed.
Fig. 9 is coding translation and the control program block diagram of embodiment 2.
After the start, the master routine Automatic Cycle is carried out initialize routine A2, T0 is changed to counter status, allow T0 to overflow and interrupt and the into interruption, and T0 overflowed interrupt being changed to the high interruption of priority, into interrupts being changed to the low interruption of priority, and promptly T0 overflows the Interrupt Process subroutine that interruption can interrupt into.Putting into is the edge triggering mode, waits for then interrupting application.
The negative edge of field system chronizing impulse triggers into and interrupts, and carries out interruption subroutine.The T0 initial value is changed to OFFH, just overflows as long as count a pulse more like this.Open T0, and some microseconds of delaying time, close T0 then.Only guarantee at field blanking interval and be to open counter in the coding time range that may superpose to have only the negative edge of coded pulse to make T0 overflow interruption like this, prevented the interference of picture signal.In this section delay time,, then trigger senior T0 and overflow interruption if coded pulse is arranged.
T0 overflows in the interruption subroutine, earlier clear totalizer A, whether detect the T0 mouth again is " 1 ", if not " 1 ", illustrate to be in during the coded pulse, detect again after then totalizer A adds 1, because adding 1 instruction, the execution totalizer takies the machine cycle, so interrupt overflowing subroutine when returning, the numerical value of totalizer is just represented the width of coded pulse, i.e. role's numbering or non-role state.If do not apply for that T0 overflows interruption, illustrating does not have coded signal in the vertical blanking period.
Remaining process is similar to Example 1, and program F2 translates into role's numbering or non-role state with the numerical value among the totalizer A, reads P10 and P11 state, presses the logical relation output controlled quentity controlled variable of Fig. 6, puts P15 and is " 1 " or " 0 ".
The into interruption subroutine finishes to return master routine, and initialize routine A2 is carried out in the master routine circulation, waits for the arrival of next field system chronizing impulse.
Certainly, the form of coding is not limited to above-mentioned two kinds of forms, can also be other form.Identification and the necessary and this form correspondence of translation coded portion could be finished task of the present invention jointly in coding detecting circuit in the hardware circuit and the program.
Claims (7)
- One kind have image repetition and the simulation dialogue function method and device thereof, it is characterized in that this method may further comprise the steps: 1.1 prerecord a kind of medium for audio and video recording that can play, make this JieThe field of the vision signal before the role personage in the matter begins to talk disappearsBe applied in latent phase and the some predetermined vertical blanking period afterwards thereofThis role's coded pulse; 1.2 play above-mentioned medium for audio and video recording, its vision signal divided do simultaneouslyTwo-way send monitor and said apparatus respectively, i.e. identification control device; 1.3 identification control device is isolated field system chronizing impulse and role's coded pulse,And send the microprocessing systems of tape storage with it; 1.4 the microprocessing systems executive routine, and1.41 role's numbering is translated in role's coded pulse;1.42 according to state and role's numbering of role's sound control, outputControlled quentity controlled variable;1.43 the sound signal by output controlled quentity controlled variable control role personageBreak-make; 1.5 the microphone pickup is sent monitor with user's voice signal.
- 2. a kind of method and device thereof with image repetition and simulation dialogue function according to claim 1 is characterized in that said role's coded pulse can be characterized with the pulse number of same pulse width or the distinct pulse widths of individual pulse.
- 3. method and the device thereof with image repetition and simulation dialogue function according to claim 2 is characterized in that said coded pulse comprises the coded signal of representing between two role personages that there is no the non-role's sound when talking with.
- One kind have image repetition and the simulation dialogue function method and device thereof, it is characterized in that this device comprises following system: 4.1 field synchronization separation circuit systems, in order in the separating video signal the fieldSynchronizing pulse is given microprocessing systems; 4.2 coding detecting circuit system is in order to the role in the separating video signalMicroprocessing systems is given in coded pulse; 4.3 role's sound gauge tap, by user's configuration switch state, letterNumber give microprocessing systems; 4.4 the audio switch Circuits System receives the audio frequency output of playing device,Its output terminal is received the audio frequency input of monitor or radio-frequency modulatorEnd, its control end is then linked microprocessing systems; 4.5 microphone and audio amplifier circuit system are in order to pick up the user'sVoice signal is given monitor after the amplification; 4.6 the microprocessor of band internal memory, follow procedure carries out above-mentioned input signalHandle, role's sound signal is carried out break-make control with its output quantity.
- 5. method and the device thereof with image repetition and simulation dialogue function according to claim 4, it is characterized in that said coding detecting circuit is made up of clamp circuit and comparator circuit, clamp circuit with an audio video synchronization pincers at a fixed level, with another fixed level input comparator, the output of comparer is then received microprocessing systems again.
- One kind have image repetition and the simulation dialogue function method and device thereof, its feature also is to be superimposed with on the said medium for audio and video recording corresponding role's coded pulse with its role personage, is superimposed on usually in the vertical blanking period of vision signal.
- 7. a kind of method and device thereof with image repetition and simulation dialogue function according to claim 6 is characterized in that said acoustic image medium can be record-reproduce head or compact video disc.
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| CN 94109361 CN1144376A (en) | 1994-08-24 | 1994-08-24 | Method and device with image repetition and simulating conversation function |
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| CN 94109361 CN1144376A (en) | 1994-08-24 | 1994-08-24 | Method and device with image repetition and simulating conversation function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014075434A1 (en) * | 2012-11-15 | 2014-05-22 | 浙江大华技术股份有限公司 | Method and apparatus for sending and receiving audio data |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014075434A1 (en) * | 2012-11-15 | 2014-05-22 | 浙江大华技术股份有限公司 | Method and apparatus for sending and receiving audio data |
| US9531980B2 (en) | 2012-11-15 | 2016-12-27 | Zhejiang Dahua Technology Co., Ltd. | Method and apparatus for sending and receiving audio data |
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