CN101742178A - Audio-video terminal playing effect optimization method and device, and audio-video playing system - Google Patents
Audio-video terminal playing effect optimization method and device, and audio-video playing system Download PDFInfo
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Abstract
The invention relates to an audio-video terminal playing effect optimization method and an audio-video terminal playing effect optimization device, and an audio-video playing system. The method comprises the following steps of: acquiring a broadcasted signal of a sample signal source played by a playing terminal in the sample signal source after outputting the sample signal source and transmitting the sample signal source to the playing terminal for displaying; comparing differences between the broadcasted signal and a preset standard, if the differences are beyond a first preset range, determining that the current output has a deviation or is not the optimal value, and needs to be adjusted; and determining adjustment parameters according to the differences, and adjusting output parameters of the signal source according to the adjustment parameters to realize optimization of the audio-video terminal playing effect and improving using experience of a user. The sample signal source is adopted and the adjustment parameters are determined according to the playing effect of the sample signal source, so the audio-video terminal playing effect optimization method has the advantages of accuracy and effectiveness, and more accurate and comprehensive adjustment.
Description
Technical field
The present invention relates to the audio frequency and video technical field, particularly a kind of audio-video terminal playing effect optimization method, audio-video terminal playing effect optimization device and audio-video frequency playing system.
Background technology
In present audio frequency and video technical field, because the audio frequency and video playback terminal all is the product of large-scale production, with the video terminal is example, the image parameter that the video terminal the inside is stored, for example brightness, contrast, saturation, tone or the like, all be that Default Value according to standard is provided with when dispatching from the factory, be that Default Value all is the same, but, because the existing otherness more or less of first material is not that each station terminal can both reach best result of broadcast when using Default Value, simultaneously, the Default Value value often is not an optimum value, therefore, and when the terminal purchase is gone back to use, often need to readjust each parameter value to satisfy concrete use needs, but for the general user, do not have the professional skill that parameter value is regulated usually, can not adjust optimum efficiency during adjusting yet.In addition, terminal in use, owing to reasons such as component ageing, drifts, can cause playing display effect trickle deviation takes place, therefore need further each parameter value to be regulated, based on above identical reason, general user can not adjust optimum efficiency.And for voice frequency terminal, in the process that audio-source is switched, for different audio-source, its correlated performance parameter can be different, what have is bigger, and have less, therefore after playing an audio-source, need the manual adjustments size, for example when the switching TV program channel, the sound size of different channel program is also different, all need manual suitable scope that it is adjusted to during therefore each switching TV program channel, thus the experience when influencing user's use audio-video terminal.
Summary of the invention
At above-mentioned problems of the prior art, the application's purpose is to provide a kind of audio-video terminal playing effect optimization method, audio-video terminal playing effect optimization device and audio-video frequency playing system, it can realize the optimization to the audio frequency and video result of broadcast, improves the experience that the user uses audio-video terminal.
For achieving the above object, the present invention by the following technical solutions:
A kind of audio-video terminal is optimized player method, comprises step:
Export the sample signal source to playback terminal and play, described sample signal source is audio frequency sample signal source or video sample signal source;
Gather the broadcasting signal that described playback terminal is play, this broadcasting signal is audio frequency broadcasting signal or video broadcasting signal;
Contrast the difference between described broadcasting signal and the preset reference, judge that described difference is whether outside first preset range, if, determine to regulate parameter according to described difference, and according to this adjusting parameter regulation signal source output parameter, described signal source output parameter is audio frequency output parameter or video output parameter.
A kind of audio-video terminal is play optimization means, comprising:
The correcting sample module is used to produce the sample signal source, and this sample signal source transfers to the adjusting output module by handover module, and described sample signal source is audio frequency sample signal source or video sample signal source;
Handover module is used for switching command according to described analysis module and switches connection status between described adjusting output module and described correcting sample module, the described signal source acquisition module;
The adjusting output module that is connected with playback terminal, being used for exporting described playback terminal to by the signal source of described handover module transmission plays, and according to the control command conditioning signal source output parameter of analysis module, described signal source output parameter is audio frequency output parameter or video output parameter;
The terminal signaling acquisition module is used to gather the broadcasting signal that described playback terminal is play, and this broadcasting signal is audio frequency broadcasting signal or video broadcasting signal;
Analysis module, be used to contrast the difference between described broadcasting signal and the preset reference, judge described difference whether outside first preset range, if, determine to regulate parameter according to described difference, and will regulate parameter and send to described adjusting output module in the mode of control command.
A kind of audio-video frequency playing system comprises aforesaid audio-video terminal broadcast optimization means, and the playback terminal that is connected with adjusting output module, terminal signaling acquisition module.
Scheme according to the invention described above, it is in output sample signal source, after the sample signal source exported to playback terminal and show, gather this playback terminal and play the broadcasting signal in this sample signal source, contrast the difference between this broadcasting signal and the preset reference, if this difference is outside first preset range, illustrate that then current output has deviation or be not optimum value, need adjust, thereby determine the adjusting parameter according to this difference, and the signal source output parameter is regulated according to this adjustment parameter, realization improves user's experience to the optimization of the result of broadcast of audio-video terminal.Owing to be to come by employing sample signal source, in addition, owing to be the definite parameter of regulating of result of broadcast of signal source per sample, accurate and effective is adjusted more accurate and comprehensive.
Description of drawings
Fig. 1 is the schematic flow sheet that audio-video terminal of the present invention is optimized player method;
Fig. 2 is the structural representation that audio-video terminal of the present invention is play optimization means;
Fig. 3 is that the audio-video terminal among Fig. 2 is play the structural representation of optimization means when broadcast video signal;
Fig. 4 is that the audio-video terminal among Fig. 2 is play the structural representation of optimization means when playing audio signal.
Embodiment
Below in the mode of embodiment the present invention program is described in detail.
As shown in Figure 1, be the schematic flow sheet that audio-video terminal of the present invention is play optimization method, it comprises step:
Step S101: export the sample signal source to playback terminal and play, this sample signal source is audio frequency sample signal source or video sample signal source, enters step S102;
Step S102: gather the broadcasting signal that described playback terminal is play, this broadcasting signal is audio frequency broadcasting signal or video broadcasting signal, enters step S103;
Step S103: contrast the difference between described broadcasting signal and the preset reference, judge that this difference is whether outside first preset range, if then explanation need be adjusted the signal source output parameter, enters step S104:
Step S104: determine to regulate parameter according to described difference, and regulate parameter regulation signal source output parameter according to this, this signal source output parameter is audio frequency output parameter or video output parameter.
Wherein, when the judged result among the above-mentioned steps S 103 is within first preset range time, illustrate that current signal source output parameter is provided with normally, need not to adjust, can directly the signal source that needs to play be exported broadcast, therefore, said method also includes: when the judged result among the above-mentioned steps S103 for not the time, enter step S105:
Step S105: export the signal source signal to playback terminal and play, this signal source signal is audio signal source signal or vision signal source signal.
For video playback and voice playing, normally separately play during application, therefore, below describe respectively with video playback and voice playing.
Concerning video playback:
At this moment, above-mentioned sample signal source is video sample signal source, this video sample signal source is transferred to playback terminal and plays, adopt video capture device, camera for example, gather playback terminal and play the result of broadcast in this video sample signal source, and video broadcasting signal and the preset reference that video capture device collects compared, when the video playback effect is optimized, this preset reference can be above-mentioned video sample signal source, compare the difference between the two, if this difference is outside first preset range, then the explanation explanation need be adjusted the video signal source output parameter, therefore, determine the adjusting parameter according to this difference after, just regulate parameter adjustment video signal source output parameter, after the adjustment, export above-mentioned video sample signal source once more according to this, repeat said process, until video broadcasting signal that video capture device collects and the difference between the video sample signal source within first preset range;
When video broadcasting signal that video capture device collects and the difference between the video sample signal source are within first preset range, the current demand that the setting of video signal source output parameter has been satisfied the optimization broadcast is described, at this moment, just can export the vision signal source signal that needs are play to playback terminal plays.
Wherein, above-mentioned sample video signal source can be seven color test patterns or black and white GTG test pattern etc., during specific implementation, can be that seven color test patterns, black and white GTG test pattern are all adopted, adopt repeatedly output, collection, analytic process comprehensively to adjust optimization, make final broadcast output have best optimization effect.
In addition, whether above-mentioned difference to video broadcasting signal and video sample signal source judgement within first preset range, based on different Considerations or application mode, different decision procedures can be arranged:
For example, under the situation of the accuracy of having relatively high expectations, may need video broadcasting signal and video sample signal source in full accord, at this moment, if the difference between video broadcasting signal and the video sample signal source is zero, determine that then this difference is within first preset range,, determine that then this difference is outside first preset range if the difference between video broadcasting signal and the video sample signal source is non-zero;
And under the situation that requires relatively low accuracy, may only need the difference between video broadcasting signal and the video sample signal source just passable in certain acceptable scope, at this moment, if the difference between video broadcasting signal and the video sample signal source is less than first predetermined threshold value, determine that then this difference is within first preset range, when if the difference between video broadcasting signal and the video sample signal source is greater than or equal to described first predetermined threshold value, determine that then this difference is outside first preset range.
To the adjusting of vision signal source signal, brightness, contrast, saturation that can be vision signal etc. is regulated, and concrete adjusting analysis mode does not repeat them here.
And for voice playing:
At this moment, above-mentioned sample signal source is audio frequency sample signal source, this audio frequency sample signal source is transferred to playback terminal and plays, adopt audio collecting device to gather playback terminal and play the result of broadcast in this audio frequency sample signal source, and the preset reference of the audio frequency broadcasting signal that audio collecting device is collected and storage in advance compares, the preset reference here can be rule of thumb to add up the empirical value that obtains, and this empirical value can be adjusted as required, comparing audio broadcasting signal and the preset reference difference between the two, if this difference is outside first preset range, then explanation need be adjusted the audio signal source output parameter, therefore, determine the adjusting parameter according to this difference after, just regulate parameter adjustment audio signal source output parameter, after the adjustment, export above-mentioned audio frequency sample signal source once more according to this, repeat said process, until audio frequency broadcasting signal that audio collecting device collects and the difference between the audio frequency sample signal source within first preset range;
When audio frequency broadcasting signal that audio collecting device collects and the difference between the audio frequency sample signal source are within first preset range, the current demand that the setting of audio signal source output parameter has been satisfied the optimization broadcast is described, at this moment, just can export the audio signal source signal that needs are play to playback terminal plays.
Wherein, above-mentioned preset reference can be determined that variant frequency band corresponding preset benchmark can be identical, also can be inequality according to the audio frequency section.
In addition, whether above-mentioned difference to audio frequency broadcasting signal and preset reference judgement within first preset range, based on different Considerations or application mode, different decision procedures can be arranged:
For example, under the situation of accuracy of having relatively high expectations, may need audio frequency broadcasting signal and preset reference in full accord, at this moment, if the difference between audio frequency broadcasting signal and the preset reference is zero, determine that then this difference is within first preset range,, determine that then this difference is outside first preset range if the difference between audio frequency broadcasting signal and the preset reference is non-zero;
And under the situation that requires relatively low accuracy, may only need the difference between audio frequency broadcasting signal and the preset reference just passable in certain acceptable scope, at this moment, if the difference between audio frequency broadcasting signal and the preset reference is less than first predetermined threshold value, determine that then this difference is within first preset range, when if the difference between audio frequency broadcasting signal and the preset reference is greater than or equal to described first predetermined threshold value, determine that then this difference is outside first preset range.
Wherein, as mentioned above, identical or different preset reference can be set at different frequency bands, at different frequency bands and when adopting this frequency band corresponding preset benchmark to judge, first predetermined threshold value of each frequency band correspondence can be identical, also can be inequality.
Adjusting to the audio signal source signal, can be that amplitude etc. to audio signal is regulated, because above-mentioned when preset reference, first predetermined threshold value are set, can be to be provided with at different frequency bands, therefore, when regulating, also can be adjusting parameter according to each frequency band respectively at each frequency band is regulated, concrete analysis regulative mode does not repeat them here.
When above-mentioned difference value is within first preset range, the setting that parameter current is described can reach the effect of optimizing broadcast, can export the audio signal source signal that needs are play to playback terminal plays, when the audio signal source signal is play, still the audio frequency broadcasting signal in the time of can gathering playback terminal and play this audio signal source signal, contrast this audio frequency broadcasting signal that collects and the difference between the default empirical value, when this difference is outside second preset range, determine full frequency band audio frequency adjusting parameter according to this difference, and regulate parameter according to this full frequency band audio frequency the audio frequency output parameter is regulated.
Wherein, the default empirical value here can be identical with above-mentioned each frequency band corresponding preset benchmark, also can be inequality.
Whether above-mentioned difference to audio frequency broadcasting signal and default empirical value judgement within second preset range, based on different Considerations or application mode, different decision procedures can be arranged:
For example, under the situation of accuracy of having relatively high expectations, may need audio frequency broadcasting signal and default empirical value in full accord, at this moment, if the difference between audio frequency broadcasting signal and the default empirical value is zero, determine that then difference is within second preset range,, determine that then difference is outside second preset range if the difference between audio frequency broadcasting signal and the default empirical value is non-zero;
And under the situation that requires relatively low accuracy, may only need the difference between video broadcasting signal and the default empirical value just passable in certain acceptable scope, at this moment, if the difference between audio frequency broadcasting signal and the default empirical value is less than second predetermined threshold value, determine that then difference is within second preset range, if the difference between audio frequency broadcasting signal and the default empirical value is greater than or equal to second predetermined threshold value, determine that then difference is outside second preset range.
Fig. 2 is the structural representation that audio-video terminal of the present invention is play optimization means, and as shown in Figure 2, this audio-video terminal is play optimization means 101 and specifically included:
Correcting sample module 1011 is used to produce the sample signal source, and this sample signal source transfers to by handover module 1012 and regulates output module 1013, and the sample signal source here can be audio frequency sample signal source or video sample signal source;
The adjusting output module 1013 that is connected with playback terminal 103, being used for exporting playback terminal 103 to by the signal source of handover module 1012 transmission plays, and according to the control command conditioning signal source output parameter of analysis module 1015, the signal source output parameter here can be audio frequency output parameter or video output parameter;
Terminal signaling acquisition module 1014 is used to gather the broadcasting signal that playback terminal 103 is play, and this broadcasting signal is audio frequency broadcasting signal or video broadcasting signal;
Wherein, when above-mentioned difference within first preset range, 1015 of analysis modules send switching commands to handover module 1012, handover module 1012 will be regulated output module 1013 according to this switching command and switch to signal source acquisition module 102 and be connected, and the signal of regulating the signal source 104 that output module 1013 gathers signal source acquisition module 103 exports playback terminal 103 to and plays.
For video playback and voice playing, normally separately play during application, therefore, below describe respectively with video playback and voice playing.
Referring to shown in Figure 3, be the structural representation of audio-video terminal broadcast optimization means when broadcast video signal among above-mentioned Fig. 2, in order more clearly to express is that result of broadcast during to video playback is optimized, therefore, in this diagram, on the basis in above-mentioned Fig. 2, the title of each module has been carried out further qualification, being the optimization that the video playback effect is carried out from can obviously identifying nominally.
As shown in Figure 3, this video terminal broadcast optimization means 201 includes:
Video correction sample block 2011 is used to produce video sample signal source, and this video sample signal source transfers to video by video frequency switching module 2012 and regulates output module 2013;
Video frequency switching module 2012, this video frequency switching module 2012 is connected in above-mentioned video correction sample block 2011, video source acquisition module 202, video and regulates between output module 2013 and the analysis module 2015, is used for regulating connection status between output module 2013 and video correction sample block 2011, the video source acquisition module 202 according to the switching command Switch Video of analysis module 2015;
The video that is connected with video playing terminal 203 is regulated output module 2013, be used for to export video playing terminal 203 to by the video source of video frequency switching module 2012 transmission and play, and regulate the video output parameter according to the control command of analysis module 2015;
Terminal video acquisition module 2014 is used to gather the broadcasting signal that video playing terminal 203 is play, and the broadcasting signal here is the video broadcasting signal;
Wherein, if above-mentioned difference is within first preset range, 2015 of analysis module send switching commands to video frequency switching module 2012, video frequency switching module 2012 is regulated output module 2013 according to this switching command with video and is switched to video source acquisition module 202 and be connected, and the signal that video is regulated the video signal source 204 that output module 2013 gathers video source acquisition module 203 exports video playing terminal 203 to and plays.
Play optimization means according to above-mentioned video terminal, the process that one of them concrete optimization is play can be:
Video correction sample block 2011 produces video sample signal source, and this video sample signal source is transferred to video by video frequency switching module 2012 regulate output module 2013, wherein, this video sample signal source can be the test pattern that is stored in advance in the video correction sample block 2011, also can be according to the instruction generation of analysis module 2015 or the test pattern of selecting, for example can be seven color test patterns or black and white GTG test pattern or the like, can carry out several times during concrete the application, being optimized processing, thereby obtain best optimization result of broadcast in conjunction with the multiclass test pattern;
Video is regulated output module 2013 and is received after the video sample signal source that transmits by video frequency switching module 2012, this video sample signal source is transferred to video playing terminal 203 plays;
Video broadcasting signal that 2015 pairs of terminal video acquisition module 2014 of analysis module collect and above-mentioned video sample signal source compare, and whether the difference of judging the two is within first preset range:
Wherein, based on different Considerations or application mode, when the difference of judging the two is whether within first preset range, different decision procedures can be arranged:
Under the situation of accuracy of having relatively high expectations, may need video broadcasting signal and video sample signal source in full accord, at this moment, if the difference between video broadcasting signal and the video sample signal source is zero, the difference of then determining the two is within first preset range, if the difference between video broadcasting signal and the video sample signal source is non-zero, determine that then the difference of the two is outside first preset range;
And under the situation that requires relatively low accuracy, may only need the difference between video broadcasting signal and the video sample signal source just passable in certain acceptable scope, at this moment, if the difference between video broadcasting signal and the video sample signal source is less than first predetermined threshold value, the difference of then determining the two is within first preset range, when if the difference between video broadcasting signal and the video sample signal source is greater than or equal to described first predetermined threshold value, determine that then the difference of the two is outside first preset range;
If the difference of learning the two through contrast is outside first preset range, output parameter when then explanation need be to video playback is adjusted, therefore, analysis module 2015 is determined the adjusting parameter according to the difference of the two, and will regulate parameter and send to video in the mode of control command and regulate output module 2013, video is regulated output module 2013 and according to this adjusting parameter the output parameter of video playback is regulated, after the adjusting, export above-mentioned video sample signal source once more, repeating said process, is that difference between video broadcasting signal and the video sample signal source is within first preset range up to the comparing result of analysis module 2015;
If learn that through contrast the difference of the two is within first preset range, the demand of optimizing result of broadcast has been satisfied in the setting that the output parameter of current video playback then is described, therefore, analysis module 2015 sends a switching command to video frequency switching module 2012, video frequency switching module 2012 is regulated output module 2013 according to this switching command with video and is switched to the conducting that is connected with video source acquisition module 203, the video source signal that video source acquisition module 203 is gathered video signal source 204 is transferred to video adjusting output module 2013 by video frequency switching module 2012, outputs to video playback module 2014 by this video adjusting output module 2013 and plays.
The adjusting of above-mentioned output parameter to video playback, can be to adopt video front interface circuit or video image to strengthen chip to regulate, for example AD9883, AD9888 etc., this class chip all has the function of regulating video parameter, the parameter value that only needs to regulate writes in the register in the chip and gets final product, concrete regulative mode can adopt mode of the prior art, does not repeat them here.
After the difference of said two devices is within first preset range, in the process that the follow-up video source signal that video source acquisition module 202 is gathered is play, reasons such as difference owing to each two field picture of video source signal, may also need the optimization process operation of being correlated with, at this moment, specifically can adopt following manner to carry out:
After the video source signal that video source acquisition module 202 collects is exported by video frequency switching module 2012, from this video source signal, select a two field picture wherein for use, specific symbol of interpolation or numeral identify this two field picture in this two field picture, to distinguish with the image of other frames, certainly, specific symbol here or numeral should be very tiny, and be placed on certain location, naked eyes are difficult for observing, to avoid influencing user's viewing effect, simultaneously this frame image data is preserved with as original master drawing, this process can be added a video processing unit and finish by regulating at video frequency switching module 2012 and video between the output module 2013;
This frame image data is regulated output module 2013 by video and is transferred to video playing terminal 203 and plays then, and by terminal video acquisition module 2014 collection results of broadcast, find image after the demonstration of particular frame by analysis module 2015, compare with the original master drawing of preserving, find out difference, be optimized according to difference then, detailed process does not repeat them here again.Wherein, in this optimizing process, if need not to regulate then to be judged to be within the acceptable range, acceptable scope here and above-mentioned acceptable scope at video sample signal source can be inequality.
Play optimization means according to aforesaid video terminal of the present invention, it is to adopt the test pattern of standard criterion to export to playback terminal, feed back to the analysis module road after the display effect by the first-class acquisition means collection playback terminal of making a video recording, analyze the demonstration deficiency of display terminal, regulate output module by video then and proofread and correct playback terminal, constitute the loop of a closed loop feedback, in addition, it is that the display effect that final broadcast shows is analyzed, accurate and effective, played the effect of proofreading and correct display terminal, owing to adjust, therefore, compare traditional brightness and come method that effect is compensated according to surround lighting according to display effect, that adjusts is more accurate, also more comprehensive.
Referring to shown in Figure 4, be the structural representation of audio-video terminal broadcast optimization means when playing audio signal among above-mentioned Fig. 2, in order more clearly to express is that result of broadcast during to voice playing is optimized, therefore, in this diagram, on the basis in above-mentioned Fig. 2, the title of each module has been carried out further qualification, being the optimization that the voice playing effect is carried out from can obviously identifying nominally.
As shown in Figure 4, this voice frequency terminal broadcast optimization means 301 includes:
Audio calibration sample block 3011 is used to produce audio frequency sample signal source, and this audio frequency sample signal source transfers to audio frequency by audio frequency handover module 3012 and regulates output module 3013;
Audio frequency handover module 3012, this audio frequency handover module 3012 is connected in above-mentioned audio calibration sample block 3011, audio-source acquisition module 302, audio frequency and regulates between output module 3013 and the audio analysis module 3015, is used for regulating connection status between output module 3013 and audio calibration sample block 3011, the audio-source acquisition module 302 according to the switching command switch audio of audio analysis module 3015;
The audio frequency that is connected with audio-frequency playing terminal 303 is regulated output module 3013, be used for to export audio-frequency playing terminal 303 to by the audio-source of audio frequency handover module 3012 transmission and play, and regulate the audio frequency output parameter according to the control command of audio analysis module 3015;
Terminal audio frequency acquisition module 3014 is used to gather the broadcasting signal that audio-frequency playing terminal 303 is play, and the broadcasting signal here is the audio frequency broadcasting signal;
Wherein above-mentioned preset reference can be the empirical value of storing in advance, this empirical value can be relevant with the frequency band of audio frequency, variant frequency band can adopt identical empirical value, promptly adopt same preset reference, also can be to adopt different empirical values respectively, be the variant pairing preset reference difference of frequency band, in concrete application process, the occurrence of each empirical value can be adjusted as required.
Wherein, if above-mentioned difference is within first preset range, 3015 of audio analysis modules send switching commands to audio frequency handover module 3012, audio frequency handover module 3012 is regulated output module 3013 according to this switching command with audio frequency and is switched to audio-source acquisition module 302 and be connected, and the signal that audio frequency is regulated the audio signal source 304 that output module 3013 gathers audio-source acquisition module 303 exports audio-frequency playing terminal 303 to and plays.
Play optimization means according to above-mentioned voice frequency terminal, the process that one of them concrete optimization is play can be:
Audio calibration sample block 3011 produces audio frequency sample signal source, and this audio frequency sample signal source is transferred to audio frequency by audio frequency handover module 3012 regulate output module 3013, wherein, this audio frequency sample signal source can be the sample source of sound that is stored in advance in the audio calibration sample block 3011, also can be according to the instruction generation of audio analysis module 3015 or the sample source of sound of selecting;
Audio frequency is regulated output module 3013 and is received after the audio frequency sample signal source that transmits by audio frequency handover module 3012, this audio frequency sample signal source is transferred to audio-frequency playing terminal 303 plays;
Audio-frequency playing terminal 303 is when playing audio frequency sample signal source, the result of broadcast that terminal audio frequency acquisition module 3014 is gathered audio-frequency playing terminal 303, it is the audio frequency broadcasting signal, the terminal audio frequency acquisition module 3014 here can be the sound collection circuit, and the audio frequency broadcasting signal that voice frequency terminal acquisition module 3014 collects is transferred to audio analysis circuit 3015 and analyzes;
Audio frequency broadcasting signal and preset reference that 3015 pairs of terminal audio frequency acquisition modules 3014 of audio analysis module collect compare, and whether the difference of judging the two is within first preset range:
Wherein, based on different Considerations or application mode, when the difference of judging the two is whether within first preset range, different decision procedures can be arranged:
Under the situation of accuracy of having relatively high expectations, may need audio frequency broadcasting signal and preset reference in full accord, at this moment, if the difference between audio frequency broadcasting signal and the preset reference is zero, the difference of then determining the two is within first preset range, if the difference between audio frequency broadcasting signal and the preset reference is non-zero, determine that then the difference of the two is outside first preset range;
And under the situation that requires relatively low accuracy, may only need the difference between audio frequency broadcasting signal and the preset reference just passable in certain acceptable scope, at this moment, if the difference between audio frequency broadcasting signal and the preset reference is less than first predetermined threshold value, the difference of then determining the two is within first preset range, when if the difference between audio frequency broadcasting signal and the preset reference is greater than or equal to described first predetermined threshold value, determine that then the difference of the two is outside first preset range;
Wherein, here at first predetermined threshold value in audio frequency sample signal source with above-mentioned first predetermined threshold value at video sample signal source can be identical, also can be identical.
If the difference of learning the two through contrast is outside first preset range, output parameter when then explanation need be to voice playing is adjusted, therefore, audio analysis module 3015 is determined the adjusting parameter according to the difference of the two, and will regulate parameter and send to audio frequency in the mode of control command and regulate output module 3013, audio frequency is regulated output module 3013 and according to this adjusting parameter the output parameter of voice playing is regulated, after the adjusting, export above-mentioned audio frequency sample signal source once more, repeating said process, is that difference between audio frequency broadcasting signal and the preset reference is within first preset range up to the comparing result of audio analysis module 3015;
If learn that through contrast the difference of the two is within first preset range, the demand of optimizing result of broadcast has been satisfied in the setting that the output parameter of current voice playing then is described, therefore, audio analysis module 3015 sends a switching command to audio frequency handover module 3012, audio frequency handover module 3012 is regulated output module 3013 according to this switching command with audio frequency and is switched to the conducting that is connected with audio-source acquisition module 303, the audio source signal that audio-source acquisition module 303 is gathered audio signal source 304 is transferred to audio frequency adjusting output module 3013 by audio frequency handover module 3012, outputs to audio playing module 3014 by this audio frequency adjusting output module 3013 and plays.
The adjusting of above-mentioned output parameter to voice playing, signal amplitude that can be each frequency band etc. is regulated, and for example adopts operational amplifier to regulate or the like, and concrete regulative mode can adopt mode of the prior art, does not repeat them here.
After the difference of said two devices is within first preset range, in the process that the follow-up audio source signal that audio-source acquisition module 302 is gathered is play, can also monitor the size of audio-source at any time, and to its optimization process operation of being correlated with, at this moment, specifically can adopt following manner to carry out:
After the audio source signal that audio-source acquisition module 302 collects outputs to audio frequency adjusting output module 3013 by audio frequency handover module 3012, audio frequency adjusting output module 3013 is transferred to audio-frequency playing terminal 303 and plays, and by 3014 collections of terminal audio frequency acquisition module, analyzed by audio analysis module 3015, concrete analytic process can be:
Broadcasting signal that contrast terminal audio frequency acquisition module 3014 collects and the difference between the default empirical value are judged this difference whether within second preset range, and wherein, concrete discriminant approach can be:
Needing under the situation of higher accuracy, for example: if the difference between this broadcasting signal and the default empirical value is zero, determine that then this difference is within second preset range, when if the difference between this broadcasting signal and the default empirical value is non-zero, determine that then this difference is outside second preset range;
Perhaps also can be
Under the situation that does not need higher accuracy, if the difference between this broadcasting signal and the default empirical value is less than second predetermined threshold value, determine that then this difference is within second preset range, if the difference between this broadcasting signal and the default empirical value is greater than or equal to above-mentioned second predetermined threshold value, determine that then this difference is outside second preset range.
When this difference is outside second preset range, explanation need be optimized processing to this audio source signal, determine full frequency band audio frequency adjusting parameter according to described difference, and regulate parameter according to this full frequency band audio frequency the audio frequency output parameter is regulated, can be after audio source signal is adjusted to zone of reasonableness, to export again.
Wherein, second predetermined threshold value here with above-mentioned preset reference at audio frequency sample signal source can be identical, also can be identical.
Play optimization means according to aforesaid voice frequency terminal of the present invention, it is to adopt audio frequency sample signal source to export to playback terminal, by feeding back to the audio analysis module after the voice playing effect of gathering playback terminal, analyze the deficiency of playback terminal, regulate output module by audio frequency then and proofread and correct playback terminal, constitute the loop of a closed loop feedback, in addition, it is that final result of broadcast is analyzed, and accurate and effective has played the effect of proofreading and correct playback terminal, owing to adjust according to result of broadcast, therefore, adjustment is more accurate, also more comprehensive.
In addition, according to as mentioned above, this scheme can also be gathered the voice playing effect in real time, at any time feed back to analysis circuit, the very first time is regulated processing audio stream, has played the effect of automatic control audio result of broadcast, simultaneously, can also monitor the size of audio signal source input, it is exported in the reasonable scope, improve the experience of user's voice playing.
In the above description, play optimization means with the video terminal that video playback is optimized respectively, and the voice frequency terminal that voice playing is optimized is play optimization means and is illustrated, and in the application of present multimedia, normally need to realize simultaneously voice playing, video playback, therefore, in the time of in specifically being applied in multimedia application equipment, can be in multimedia application equipment, to include above-mentioned video terminal simultaneously to play optimization means and above-mentioned voice frequency terminal broadcast optimization means, can certainly be included only the two one of, will not add to give unnecessary details at this.
Above-described embodiment of the present invention does not constitute the qualification to protection range of the present invention.Any modification of being done within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within the claim protection range of the present invention.
Claims (10)
1. an audio-video terminal is optimized player method, it is characterized in that, comprises step:
Export the sample signal source to playback terminal and play, described sample signal source is audio frequency sample signal source or video sample signal source;
Gather the broadcasting signal that described playback terminal is play, this broadcasting signal is audio frequency broadcasting signal or video broadcasting signal;
Contrast the difference between described broadcasting signal and the preset reference, judge that described difference is whether outside first preset range, if, determine to regulate parameter according to described difference, and according to this adjusting parameter regulation signal source output parameter, described signal source output parameter is audio frequency output parameter or video output parameter.
2. audio-video terminal according to claim 1 is optimized player method, it is characterized in that, also comprise: when described difference is within first preset range, exports the signal source signal to playback terminal and play, this signal source signal is audio signal source signal or vision signal source signal.
3. audio-video terminal according to claim 2 is play optimization means, it is characterized in that: when described playback terminal play be the audio signal source signal time, contrast broadcasting signal that described terminal signaling acquisition module collects and the difference between the default empirical value, when this difference is outside second preset range, determine full frequency band audio frequency adjusting parameter according to described difference, and regulate parameter according to this full frequency band audio frequency the audio frequency output parameter is regulated.
4. optimize player method according to any described audio-video terminal of claim 1 to 3, it is characterized in that:
When described sample signal source was video sample signal source, described preset reference was described sample video signal source; When described sample signal source was audio frequency sample signal source, described preset reference was the audio signal parameters empirical value of storing in advance;
And/or
Described sample video signal source is seven color test patterns or black and white GTG test pattern;
And/or
Judge whether difference comprises in the mode outside first preset range: when the difference between described broadcasting signal and the preset reference is zero, determine that described difference is within first preset range, when the difference between described broadcasting signal and the preset reference is non-zero, determine that described difference is outside first preset range; Or, when the difference between described broadcasting signal and the preset reference during less than first predetermined threshold value, determine that described difference is within first preset range, when the difference between described broadcasting signal and the preset reference is greater than or equal to described first predetermined threshold value, determine that described difference is outside first preset range;
And/or
Judge whether difference comprises in the mode outside second preset range: when the difference between described broadcasting signal and the default empirical value is zero, determine that described difference is within second preset range, when the difference between described broadcasting signal and the default empirical value is non-zero, determine that described difference is outside second preset range; Or, when the difference between described broadcasting signal and the default empirical value during less than second predetermined threshold value, determine that described difference is within second preset range, when the difference between described broadcasting signal and the default empirical value is greater than or equal to described second predetermined threshold value, determine that described difference is outside second preset range.
5. audio-video terminal according to claim 4 is optimized player method, it is characterized in that: when described sample signal source is audio frequency sample signal source, described preset reference is determined according to the frequency band of audio signal, each frequency band corresponding preset benchmark is identical or inequality, and first predetermined threshold value of each frequency band correspondence is identical or inequality.
6. an audio-video terminal is play optimization means, it is characterized in that, comprising:
The correcting sample module is used to produce the sample signal source, and this sample signal source transfers to the adjusting output module by handover module, and described sample signal source is audio frequency sample signal source or video sample signal source;
Handover module is used for switching command according to described analysis module and switches connection status between described adjusting output module and described correcting sample module, the described signal source acquisition module;
The adjusting output module that is connected with playback terminal, being used for exporting described playback terminal to by the signal source of described handover module transmission plays, and according to the control command conditioning signal source output parameter of analysis module, described signal source output parameter is audio frequency output parameter or video output parameter;
The terminal signaling acquisition module is used to gather the broadcasting signal that described playback terminal is play, and this broadcasting signal is audio frequency broadcasting signal or video broadcasting signal;
Analysis module, be used to contrast the difference between described broadcasting signal and the preset reference, judge described difference whether outside first preset range, if, determine to regulate parameter according to described difference, and will regulate parameter and send to described adjusting output module in the mode of control command.
7. audio-video terminal according to claim 6 is play optimization means, it is characterized in that:
Described analysis module, also in described judged result for not the time, send switching command to described handover module, described handover module switches to described adjusting output module with described signal source acquisition module according to this switching command and is connected, and described adjusting output module exports the signal source signal of described signal source acquisition module collection to described playback terminal and plays.
8. audio-video terminal according to claim 7 is play optimization means, it is characterized in that:
Described analysis module, also contrast described terminal signaling acquisition module and gather the broadcasting signal that obtains when described playback terminal is play the signal source signal of described signal source acquisition module and the difference between the default empirical value, judge that this difference is whether outside second preset range, if, determine that according to described difference the full frequency band audio frequency regulates parameter, and this full frequency band audio frequency is regulated parameter send to described adjusting output module in the mode of control command.
9. play optimization means according to any described audio-video terminal of claim 6 to 8, it is characterized in that:
Described sample video signal source is seven color test patterns or black and white GTG test pattern;
And/or
Judge whether difference comprises in the mode outside first preset range: when the difference between described broadcasting signal and the preset reference is zero, determine that described difference is within first preset range, when the difference between described broadcasting signal and the preset reference is non-zero, determine that described difference is outside first preset range; Or, when the difference between described broadcasting signal and the preset reference during less than first predetermined threshold value, determine that described difference is within first preset range, when the difference between described broadcasting signal and the preset reference is greater than or equal to described first predetermined threshold value, determine that described difference is outside first preset range;
And/or
Judge whether difference comprises in the mode outside second preset range: when the difference between described broadcasting signal and the default empirical value is zero, determine that described difference is within second preset range, when the difference between described broadcasting signal and the default empirical value is non-zero, determine that described difference is outside second preset range; Or, when the difference between described broadcasting signal and the default empirical value during less than second predetermined threshold value, determine that described difference is within second preset range, when the difference between described broadcasting signal and the default empirical value is greater than or equal to described second predetermined threshold value, determine that described difference is outside second preset range.
10. an audio-video frequency playing system is characterized in that, this terminal comprises that the audio-video terminal of aforesaid right requirement 6 to 9 described in any one play optimization means, and with regulate the playback terminal that output module, terminal signaling acquisition module are connected.
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| CN200910213806A CN101742178A (en) | 2009-12-14 | 2009-12-14 | Audio-video terminal playing effect optimization method and device, and audio-video playing system |
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| CN200910213806A CN101742178A (en) | 2009-12-14 | 2009-12-14 | Audio-video terminal playing effect optimization method and device, and audio-video playing system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102487433A (en) * | 2010-12-06 | 2012-06-06 | 联咏科技股份有限公司 | Multimedia apparatus and playing mode detection method thereof |
| CN103677714A (en) * | 2013-12-09 | 2014-03-26 | 联想(北京)有限公司 | Information processing method and electronic equipment |
| CN103702180A (en) * | 2014-01-14 | 2014-04-02 | 北京奇艺世纪科技有限公司 | Media file playing method and device |
| CN106791810A (en) * | 2016-12-14 | 2017-05-31 | 合网络技术（北京）有限公司 | Video playback method of testing and device |
| WO2017156880A1 (en) * | 2016-03-15 | 2017-09-21 | 中兴通讯股份有限公司 | Terminal audio parameter management method, apparatus and system |
| CN112543359A (en) * | 2020-11-12 | 2021-03-23 | 海信视像科技股份有限公司 | Display device and method for automatically configuring video parameters |
| CN113031904A (en) * | 2021-03-25 | 2021-06-25 | 联想(北京)有限公司 | Control method and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102487433A (en) * | 2010-12-06 | 2012-06-06 | 联咏科技股份有限公司 | Multimedia apparatus and playing mode detection method thereof |
| CN102487433B (en) * | 2010-12-06 | 2014-03-26 | 联咏科技股份有限公司 | Multimedia apparatus and playing mode detection method thereof |
| CN103677714A (en) * | 2013-12-09 | 2014-03-26 | 联想(北京)有限公司 | Information processing method and electronic equipment |
| CN103702180A (en) * | 2014-01-14 | 2014-04-02 | 北京奇艺世纪科技有限公司 | Media file playing method and device |
| WO2017156880A1 (en) * | 2016-03-15 | 2017-09-21 | 中兴通讯股份有限公司 | Terminal audio parameter management method, apparatus and system |
| CN106791810A (en) * | 2016-12-14 | 2017-05-31 | 合网络技术（北京）有限公司 | Video playback method of testing and device |
| CN112543359A (en) * | 2020-11-12 | 2021-03-23 | 海信视像科技股份有限公司 | Display device and method for automatically configuring video parameters |
| CN113031904A (en) * | 2021-03-25 | 2021-06-25 | 联想(北京)有限公司 | Control method and electronic equipment |
| CN113031904B (en) * | 2021-03-25 | 2023-10-24 | 联想(北京)有限公司 | Control method and electronic equipment |
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Application publication date: 20100616 |