CN101820520B - Integrated digital TV capable of adjusting volume automatically and implementing method thereof - Google Patents
Integrated digital TV capable of adjusting volume automatically and implementing method thereof Download PDFInfo
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- CN101820520B CN101820520B CN 200910105585 CN200910105585A CN101820520B CN 101820520 B CN101820520 B CN 101820520B CN 200910105585 CN200910105585 CN 200910105585 CN 200910105585 A CN200910105585 A CN 200910105585A CN 101820520 B CN101820520 B CN 101820520B
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Abstract
The invention is suitable for an integrated digital TV, and provides the integrated digital TV capable of adjusting volume automatically and an implementing method thereof. The method comprises the following steps of: a, acquiring and storing an input volume value of a channel before channel switching and acquiring the input volume value of another channel after the channel switching; and b, comparing the input volume value of the channel before the channel switching with that of the another channel after the channel switching, and adjusting the volume gain of a sound power amplifier module of the integrated digital TV according to a comparison result. Through the technical scheme provided by the invention, the integrated digital TV can adjust the volume according to the input volume of the another channel after the channel switching so as to prevent disturbing sound intensity differences caused by the channel switching and make users have better user experience.
Description
Technical field
The invention belongs to the digital television techniques field, relate in particular to the self-adjusting digital TV integrated machine of a kind of volume and its implementation.
Background technology
At present, along with the development of television industries, especially along with the popularizing of Digital Television, the channel that TV can be watched gets more and more.Because each TV station method difference of programming, the volume during such as coding does not have unified standard, causes each output volume disunity, and in the time of channel therefore can occurring and switch, the sound that switches the back channel can become big suddenly or diminish.When sound becomes big suddenly, will bring certain puzzlement to user's use, especially in the relatively more quiet period at night; In addition, when diminishing suddenly, the user also has to readjust volume in order to watch program.
For simulated television, because the loud I of simulation is directly to judge from signal amplitude, therefore general television set chip has AVC (automatic sound control), when the user does not operate, according to the voice signal amplitude of input, the automatic equalization wave volume, and digital TV integrated machine is digital signal because enter the signal of chip, can't judge the volume of current channel by signal amplitude, therefore above method is inapplicable.
Be by in TS (transport stream), sending the method for the privately owned descriptor of volume for the set-top box product, come the volume between the balanced different channel to change suddenly, but it is defined that this method is not standard, but it is self-defined by each operator, and when set-top box customizes specific implementation, this is feasible in the market of the set-top box that mainly calls for bid to sell by operator.And digital TV integrated machine orients towards the whole country, sell in the retail market, and there is operator of hundreds of family in the whole nation, therefore can not use the method for this customization.
In addition, also have the mode of the yield value of some technical schemes by storing each channel to realize the volume equilibrium, this mode needs the user that each channel is arranged in menu, more complicated in the use, and the user of product experiences not good enough.
Therefore, be necessary to provide a kind of technical scheme, can prevent the sound volume difference that when program switches, produces so that digital TV integrated machine can be adjusted volume value automatically.
Summary of the invention
The object of the present invention is to provide the self-adjusting digital TV integrated machine of a kind of volume and its implementation, be intended to solve the self-adjusting problem of digital TV integrated machine output volume.
The present invention is achieved in that the self-adjusting digital TV integrated machine of a kind of volume, and described digital TV integrated machine comprises MCU, memory and output volume control module, wherein:
Channel was imported volume value and is stored to described memory before described MCU was used for obtaining before channel switches and switches, and being used for after channel switches, obtaining the input volume value that switches the back channel, the input volume value was transferred to described output volume control module before the described channel that switches back input volume value and read from described memory was switched;
Described memory is used for storing the input volume value of the preceding channel of described switching;
Described output volume control module is used for the input volume value of channel before the described switching is compared with the input volume value that switches the back channel, adjusts the sound gain of described digital TV integrated machine sound power amplifier module according to comparative result.
It also comprises the control signal receiver module, described control signal receiver module is used for the control command that receiving channels switches, described MCU also is used for described control command is resolved, and controls described digital TV integrated machine according to analysis result and carries out the channel switching.
Described output volume control module specifically comprises volume value comparing unit and the sound gain control unit that connects successively, described volume value comparing unit is used for the input volume value and the input volume value that switches the back channel of channel before the more described switching, and comparative result is transferred to described sound gain control unit; If the described input volume value of back channel that switches is greater than the input volume value of channel before switching, described sound gain control unit is used for controlling described sound power amplifier module the sound gain is turned down, if the described input volume value of back channel that switches is less than the input volume value of channel before switching, described sound gain control unit is used for controlling described sound power amplifier module and transfers the sound gain big.
Described volume value comparing unit also be used for channel before the more described switching the output volume value and switch the output volume value of back channel, and comparative result is transferred to described sound gain control unit, the output volume of channel before if the described output volume that switches the back channel is equal to and switches, described sound gain control unit stops the gain adjustment to the sound power amplifier module.
Described sound gain control unit is used for controlling described sound power amplifier module and according to the step-length of setting the sound gain is progressively turned down or progressively transferred big, and the output volume value of channel is identical before the described output volume value of switching the back channel and switching.
The present invention also provides a kind of digital TV integrated machine volume self-adjusting method, and described method comprises:
A, before channel switches, obtain and bank switching before the input volume value of channel, after channel switches, obtain the input volume value that switches the back channel;
The input volume value of the input volume value of channel and switching back channel is adjusted the sound gain of digital TV integrated machine sound power amplifier module before b, the more described switching according to comparative result.
Wherein step b specifically comprises:
The input volume value of the input volume value of channel and switching back channel before b1, the more described switching, if the described input volume value of back channel that switches is greater than the input volume value of channel before switching, described sound power amplifier module is turned the sound gain down, if the described input volume value of back channel that switches is less than the input volume value of channel before switching, described sound power amplifier module is transferred the sound gain big.
Wherein step a also comprises:
Obtain output volume value and storage before channel switches, obtain the output volume value before channel switches;
Wherein step b specifically comprises:
The input volume value of the input volume value of channel and switching back channel before b1, the more described switching, if the described input volume value of back channel that switches is greater than the input volume value of channel before switching, the sound gain is progressively turned down according to the step-length of setting, relatively switch the output volume value of back channel simultaneously and switch before the output volume value of channel, the output volume value of channel is identical before the described output volume value of switching the back channel and switching; If the described input volume value of back channel that switches is less than the input volume value of channel before switching, the sound gain is progressively transferred greatly according to certain step-length, relatively switch the output volume value of back channel simultaneously and switch before the output volume value of channel, the output volume value of channel is identical before the described output volume value of switching the back channel and switching.
The present invention overcomes the deficiencies in the prior art, when digital TV integrated machine switches to new channel, the input volume value of the input volume value of channel and switching back channel before system will relatively switch, according to comparative result the sound gain of switching the back channel is adjusted, because the output volume value is input volume value and gain sum, when the input volume value that switches the back channel during greater than the input volume value of channel before switching, the sound power amplifier module is turned its gain down, when the input volume value that switches the back channel during less than the input volume value of channel before switching, the sound power amplifier module is transferred its gain big, makes that the output volume of new channel is consistent with the output volume that switches preceding channel.Technical scheme provided by the invention makes the Digital Television one to adjust according to the input volume of switching the back channel, prevents from switching the sound intensity difference of disturbing the people that causes at channel, makes the user have better experience.
Description of drawings
Fig. 1 is the schematic diagram of the digital TV integrated machine that provides of the embodiment of the invention;
Fig. 2 is the output volume control module schematic diagram that the embodiment of the invention provides;
Fig. 3 is embodiment of the invention flow chart.
Embodiment
Technical scheme provided by the invention is: when digital TV integrated machine switches to new channel, the input volume value of the input volume value of channel and switching back channel before system will relatively switch, according to comparative result the sound gain of switching the back channel is adjusted, because the output volume value is input volume value and gain sum, when the input volume value that switches the back channel during greater than the input volume value of channel before switching, the sound power amplifier module is turned its gain down, when the input volume value that switches the back channel during less than the input volume value of channel before switching, the sound power amplifier module is transferred its gain big, makes that the output volume of new channel is consistent with the output volume that switches preceding channel.
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the present invention, and be not used in restriction the present invention.
The schematic diagram of the digital TV integrated machine that the embodiment of the invention provides comprises MCU (microprocessor), control signal receiver module, memory, output volume control module and sound power amplifier module as shown in Figure 1.Wherein: the control signal receiver module is connected with MCU, is used for receiving the remote signal that the user sends by digital TV set remote-controller or control panel, and in the embodiment of the invention, the user can carry out the channel handover operation by remote controller;
MCU links to each other with the sound power amplifier module with memory, be used for the remote signal that the remote control receiver module receives is resolved, and control the operation of each correlation function module according to analysis result, as read input volume value, output volume value and the sound yield value that switches preceding channel and switch the back channel, store the data that read into memory;
Memory is used for channel before the bank switching and switch input volume value, output volume value and the sound yield value of back channel;
The output volume control module links to each other with MCU, be used for realizing output volume control, comprise that the input volume value with channel before switching compares with the input volume value that switches the back channel, when the input volume value that switches the back channel during greater than the input volume value of channel before switching, control sound power amplifier module is turned gain down, when the input volume value that switches the back channel during less than the input volume value of channel before switching, control sound power amplifier module will gain and transfer greatly, make the output volume of sound power amplifier module be consistent;
The concrete schematic diagram of output volume control module as shown in Figure 2, comprise the volume value comparing unit and the sound gain control unit that connect successively, described volume value comparing unit is used for relatively switching the input volume value of preceding channel and the input volume value of switching back channel, and comparative result is transferred to the sound gain control unit; When the input volume value that switches the back channel during greater than the input volume value of channel before switching, described sound gain control unit is used for controlling the sound power amplifier module and will gains according to certain step-length and progressively turn down, when the input volume value that switches the back channel during less than the input volume value of channel before switching, the sound gain control unit is used for controlling the sound power amplifier module and will gain according to certain step-length and progressively transfer greatly; The output volume value of the output volume value of channel and switching back channel before described volume value comparing unit also is used for relatively switching, when both tended to unanimity, described sound gain control unit stopped the gain adjustment to the sound power amplifier module.
The sound power amplifier module links to each other with the output volume control module, is used for according to the control of output volume control module the sound yield value being adjusted, and makes that the output volume value of switching the back channel is consistent with the output volume value of switching preceding channel.
Concrete when using technical scheme provided by the invention, can realize by the output limiting facility of sound power amplifier chip on the digital TV integrated machine.
Embodiment of the invention flow chart specifically comprises following step as shown in Figure 3:
1, with the input volume value (volume of digital TV integrated machine current channel (switch before channel)
1in), output volume value (volume
1out) and sound yield value (gain1) storage;
2, carry out the channel handover operation according to user instruction, will switch the input volume value (volume of back channel
2in) storage;
3, relatively switch the volume of preceding channel
1inWith the volume that switches the back channel
2inIf, volume
1inLess than volume
2in, change step 4, if volume
1inGreater than volume
2in, change step 6, otherwise change step 8;
4, according to certain step-length the sound yield value is turned down, obtained the output volume value (volume that switches the back channel
2out) and sound yield value (gain2);
5, relatively switch the volume of preceding channel
1outWith the volume that switches the back channel
2outIf, volume
1outLess than volume
2out, change step 4, otherwise change step 8;
6, according to certain step-length the sound yield value is transferred greatly, obtained the output volume value (volume that switches the back channel
2out) and sound yield value (gain2);
7, relatively switch the volume of preceding channel
1outWith the volume that switches the back channel
2outIf, volume
1outGreater than volume
2out, change step 6, otherwise change step 8;
8. process ends.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. the self-adjusting digital TV integrated machine of volume is characterized in that, described digital TV integrated machine comprises MCU, memory and output volume control module, wherein:
Channel was imported volume value and is stored to described memory before described MCU was used for obtaining before channel switches and switches, and being used for after channel switches, obtaining the input volume value that switches the back channel, the input volume value was transferred to described output volume control module before the described channel that switches back input volume value and read from described memory was switched;
Described memory is used for storing the input volume value of the preceding channel of described switching;
Described output volume control module is used for the input volume value of channel before the described switching is compared with the input volume value that switches the back channel, adjust the sound gain of described digital TV integrated machine sound power amplifier module according to the comparative result of input volume value, the output volume value of channel and switch the output volume value of back channel before the more described switching, and stop gain adjustment to the sound power amplifier module when output volume value of channel and the output volume value of switching the back channel tend to consistent before described switching.
2. digital TV integrated machine according to claim 1, it is characterized in that, it also comprises the control signal receiver module, described control signal receiver module is used for the control command that receiving channels switches, described MCU also is used for described control command is resolved, and controls described digital TV integrated machine according to analysis result and carries out the channel switching.
3. digital TV integrated machine according to claim 1, it is characterized in that, described output volume control module specifically comprises volume value comparing unit and the sound gain control unit that connects successively, described volume value comparing unit is used for the input volume value and the input volume value that switches the back channel of channel before the more described switching, and comparative result is transferred to described sound gain control unit; If the described input volume value of back channel that switches is greater than the input volume value of channel before switching, described sound gain control unit is used for controlling described sound power amplifier module the sound gain is turned down, if the described input volume value of back channel that switches is less than the input volume value of channel before switching, described sound gain control unit is used for controlling described sound power amplifier module and transfers the sound gain big.
4. digital TV integrated machine according to claim 3, it is characterized in that, described volume value comparing unit also be used for channel before the more described switching the output volume value and switch the output volume value of back channel, and comparative result is transferred to described sound gain control unit, the output volume of channel before if the described output volume that switches the back channel is equal to and switches, described sound gain control unit stops the gain adjustment to the sound power amplifier module.
5. digital TV integrated machine according to claim 4, it is characterized in that, described sound gain control unit is used for controlling described sound power amplifier module and according to the step-length of setting the sound gain is progressively turned down or progressively transferred big, and the output volume value of channel is identical before the described output volume value of switching the back channel and switching.
6. self-adjusting method of digital TV integrated machine volume, described method comprises:
A, before channel switches, obtain and bank switching before the input volume value of channel, after channel switches, obtain the input volume value that switches the back channel;
The input volume value of the input volume value of channel and switching back channel before b, the more described switching, adjust the sound gain of digital TV integrated machine sound power amplifier module according to the comparative result of input volume value, the output volume value of channel and switch the output volume value of back channel before the more described switching, and stop gain adjustment to the sound power amplifier module when output volume value of channel and the output volume value of switching the back channel tend to consistent before described switching.
7. method according to claim 6 is characterized in that, wherein step b specifically comprises:
The input volume value of the input volume value of channel and switching back channel before b1, the more described switching, if the described input volume value of back channel that switches is greater than the input volume value of channel before switching, described sound power amplifier module is turned the sound gain down, if the described input volume value of back channel that switches is less than the input volume value of channel before switching, described sound power amplifier module is transferred the sound gain big.
8. method according to claim 6 is characterized in that, wherein step a also comprises:
Obtain output volume value and storage before channel switches, obtain the output volume value before channel switches;
Wherein step b specifically comprises:
The input volume value of the input volume value of channel and switching back channel before b1, the more described switching, if the described input volume value of back channel that switches is greater than the input volume value of channel before switching, the sound gain is progressively turned down according to the step-length of setting, relatively switch the output volume value of back channel simultaneously and switch before the output volume value of channel, the output volume value of channel is identical before the described output volume value of switching the back channel and switching; If the described input volume value of back channel that switches is less than the input volume value of channel before switching, the sound gain is progressively transferred greatly according to certain step-length, relatively switch the output volume value of back channel simultaneously and switch before the output volume value of channel, the output volume value of channel is identical before the described output volume value of switching the back channel and switching.
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| CN102426838A (en) * | 2011-08-24 | 2012-04-25 | 华为终端有限公司 | Voice signal processing method and user equipment |
| CN102984575B (en) * | 2012-12-10 | 2015-08-05 | 潍坊海数新媒体技术有限公司 | A kind of Digital Television sound integral machine and control method thereof |
| CN104052949B (en) * | 2013-03-14 | 2019-03-29 | 联想(北京)有限公司 | Volume adjusting method, device and electronic equipment |
| CN103458114B (en) * | 2013-08-20 | 2016-02-24 | 小米科技有限责任公司 | A kind of method of switching multi-media stream, equipment and terminal |
| CN104363488A (en) * | 2014-11-12 | 2015-02-18 | 无锡科思电子科技有限公司 | Television with dual-protection function |
| CN104363396A (en) * | 2014-11-12 | 2015-02-18 | 无锡科思电子科技有限公司 | Television with function of adaptive volume adjustment in channel switching |
| CN104363516A (en) * | 2014-11-12 | 2015-02-18 | 无锡科思电子科技有限公司 | Intelligent television control method based on volume adjustment and distance sensing |
| CN105592231B (en) * | 2016-02-25 | 2019-03-29 | 青岛海信电器股份有限公司 | A kind of processing method of signal, device and equipment |
| CN106162320B (en) * | 2016-07-27 | 2019-05-07 | 青岛海信电器股份有限公司 | Method for regulation of sound volume and device |
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