CN101635561B - Audio play device and volume control method - Google Patents
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Abstract
The embodiment of the invention discloses an audio play device and a volume control method, belonging to the technical field of electron and solving the technical problems that the user experience is not fine and the individuation and difference use requirements of users can not be satisfied in the prior art. The audio play device comprises a play unit, a storage unit, a control unit and a signal scaling unit, wherein the storage unit is used for prestoring feature values of different volume modes of at least two sound volume lines; and the control unit is used for reading the feature values in the storage unit and carrying out scaling process on audio signals according to the feature values, volume modes corresponding to the feature values and a sound volume line control signal scaling unit corresponding to the volume modes and sending the audio signals to the play unit for playing. The invention is applied to audio play devices.
Description
Technical field
The invention belongs to electronic technology field, be specifically related to a kind of audio-frequence player device and a kind of method for controlling volume.
Background technology
Along with the continuous development of electronic technology, but the playing audio/video of audio plays such as various television set, computer, video file is very universal.
Existing playing audio/video comprises memory cell, control unit, power amplifier, audio playing unit and video playback unit, wherein: memory cell be used to the to prestore characteristic value of audio volume line; Control unit is used for the volume regulating command according to user's input; Read characteristic value from memory cell; And according to the pairing audio volume line traffic control of characteristic value power amplifier audio signal is amplified, the audio signal after will amplifying then is sent to audio playing unit and plays; The video playback unit is used to show audio volume line and volume, realizes man-machine interaction.
The audio volume line is that the power output of audio playing unit and the ratio point set of volume numerical value form; Be used to represent the real output of the different pairing audio playing units of volume numerical value; The common curved shape of audio volume line is so also be called as the audio volume curve.
With the television set is example, when the user regulates volume, can show a volume numerical value (usually from 0 to 100) on the screen of TV set, points out the size of actual volume, and volume numerical value is big more, and then the actual output volume of television set is just big more.
Prior art middle pitch numerical quantity is set between 1 to 100 usually, and from 1 to 100, along with the increase of volume numerical value, the also corresponding increase of the power output of video playback unit; Increase to 10 or increase to 100 from 50 from 1, the size of actual volume is concrete to increase several times, relevant criterion not in this technical field at present, and by manufacturer oneself decision, the user must accept this set of producer fully, oneself does not have the authority modification.
In actual use, for the audio volume line, different users' demand is different.The user who has likes under less volume numerical value, using television set; Preceding half section (volume 1～50) if of audio volume line be provided with low (for example: a TV; When volume 100, sound accompaniment power is 5W, and when volume 50; The not enough 0.25W of sound accompaniment power output), this type user's use needs have then been satisfied not.The user who has has TV as the custom that sound equipment uses, and likes music appreciating program under big volume numerical value, if that preceding half section (volume 1～50) of audio volume line is provided with is too high (for example: voice output power reaches 1.5W in the time of volume 50); Then will not meet the custom that is provided with of acoustics volume, cause just easy emergent power surplus deficiency when volume 50, the phenomenon that sound is sent out broken; And; From 50 to 100, in a very big span, sound power has only increased about 5dB; Gather way slowly, can not satisfy this type user's use needs.
Prior art is catered to the needs of different user usually through the shape of regulating the audio volume line, for example: the producer that has with the audio volume line preceding half section be provided with higher, to adapt to the use needs of liking the user of music appreciating program under than small volume numerical value; The producer that has with the audio volume line preceding half section establish low, to adapt to the use needs of liking the user of music appreciating program under big volume numerical value; The producer that has is made as quite a few sections with the audio volume line, better to cater to user's needs.
The inventor finds that there is following problem at least in prior art in realizing process of the present invention:
Because the audio volume line that is provided in the prior art is merely one; Very single; The shape of regulating the audio volume line can make that audio volume wire shaped front and back difference is bigger; Cause the speed of increase or minimizing of volume inhomogeneous, neglect and suddenly neglect slowly, cause user's experience not good, and single audio volume line can't need in use satisfying personalized, differentiation user.
Summary of the invention
The embodiment of the invention provides a kind of audio-frequence player device and a kind of method for controlling volume, solved prior art exist user's experience not good and can't be satisfying personalized, the technical problem of differentiation user's use needs.
For achieving the above object, embodiments of the invention adopt following technical scheme:
This audio-frequence player device comprises broadcast unit, memory cell, control unit and signal unit for scaling, wherein:
Said memory cell, the characteristic value of the volume pattern that at least two the audio volume lines of being used to prestore are different;
Said control unit; Be used for reading the characteristic value of said memory cell, and according to said characteristic value, the pairing volume pattern of said characteristic value and the said signal unit for scaling of the pairing audio volume line traffic control of said volume pattern audio signal carried out convergent-divergent processing and transmitting to said broadcast unit and play.
Further, said signal unit for scaling comprises attenuation units and power amplifier unit, wherein:
Said attenuation units is used for according to the instruction of said control unit audio signal being carried out decay in various degree, and the audio signal after will decaying is imported said power amplifier unit;
Being sent to said broadcast unit after the audio signal that said power amplifier unit is used for that it is received is amplified plays.
Further, said attenuation units is an attenuator, and said power amplifier unit is a power amplifier.
Further, said audio-frequence player device also comprises map unit, and said map unit is used to prestore or writes down actual volume size when identical, the corresponding relation between the characteristic value of different sound accompaniment patterns;
Said control unit is used for according to the corresponding relation between the characteristic value of the mode switch instruction of user's input and the different sound accompaniment pattern that said map unit prestored or write down, and reads the characteristic value of the sound accompaniment pattern of the pairing desire switching of the characteristic value of switching preceding sound accompaniment pattern from said memory cell.
Further; This audio-frequence player device also comprises the video playback unit that is used for the display video picture, and the content of said video pictures comprises the corresponding relation between the characteristic value of the different sound accompaniment pattern that the different pairing audio volume lines of said volume pattern, said characteristic value and relation, actual volume size and/or said map unit between the said audio volume line are shone upon.
Further, power output that said audio volume line is actual volume size or broadcast unit and the set of the ratio point of volume numerical value form, and said volume pattern comprises pattern one, pattern two and pattern three, wherein:
Said pattern one pairing audio volume line is the shaped form of evagination, and said pattern two pairing audio volume lines are shape linearly, and said pattern three pairing audio volume lines are the shaped form of indent.
This method for controlling volume may further comprise the steps:
The prestore characteristic value of the different volume pattern of at least two audio volume lines of memory cell;
Control unit reads the characteristic value in the said memory cell, and according to said characteristic value, the pairing volume pattern of said characteristic value and the said signal unit for scaling of the pairing audio volume line traffic control of said volume pattern audio signal is carried out convergent-divergent processing and transmitting to said broadcast unit and play.
Further, said signal unit for scaling comprises attenuation units and power amplifier unit, and said signal unit for scaling carries out the method that convergent-divergent processing and transmitting to said broadcast unit is play to audio signal, specifically may further comprise the steps:
Said attenuation units is carried out decay in various degree according to the instruction of said control unit to audio signal, and the audio signal after will decaying is imported said power amplifier unit;
Being sent to said broadcast unit after said power amplifier unit amplifies the audio signal that it received plays.
Further, said control unit reads the method for the characteristic value in the said memory cell, specifically may further comprise the steps:
Map unit prestores or writes down actual volume size when identical, the corresponding relation between the characteristic value of different sound accompaniment patterns;
Said control unit reads the characteristic value of the sound accompaniment pattern of the pairing desire switching of the characteristic value of switching preceding sound accompaniment pattern according to the corresponding relation between the characteristic value of the mode switch instruction of user's input and the different sound accompaniment pattern that said map unit prestored or write down from said memory cell.
Further, this method for controlling volume is further comprising the steps of:
Video playback unit displaying contents comprises the video pictures of the corresponding relation between the characteristic value of relation, actual volume size and/or the different sound accompaniment pattern that said map unit prestored or write down between the different pairing audio volume lines of said volume pattern, said characteristic value and the said audio volume line.
Compared with prior art, the arbitrary technical scheme in the technique scheme provided by the present invention has following advantage:
Because the memory cell that the embodiment of the invention provided prestores at least two different volume patterns; And the audio volume line of different volume patterns is different; Can design a plurality of volume patterns according to user's hobby and needs; Make different users can switch according to hobby, select the different pairing volume patterns of audio volume line, thereby use satisfying personalized, differentiation user need;
Simultaneously; Even the audio volume line of each volume pattern that the embodiment of the invention provided is designed to the needs that level and smooth curve or straight line also can satisfy different user; Need not to adopt prior art the audio volume line is made as before and after the method for two sections or quite a few sections; So can make that the speed ratio of increase or minimizing of volume is more even; And then improve user's experience, so solved prior art exist user's experience not good and can't be satisfying personalized, the technical problem of differentiation user's use needs.
Description of drawings
The sketch map of the internal structure of a kind of execution mode of the audio-frequence player device that Fig. 1 is provided for embodiments of the invention 1;
The sketch map of the internal structure of another execution mode of the audio-frequence player device that Fig. 2 is provided for embodiments of the invention 1;
Three kinds of volume patterns in the audio-frequence player device that Fig. 3 is provided for embodiments of the invention 1 are the sketch map of three kinds of corresponding audio volume lines respectively;
The sketch map of corresponding relation between three kinds of volume patterns that mapper prestores or writes down in the audio-frequence player device that Fig. 4 is provided for embodiments of the invention 2;
The sketch map of the internal structure of the audio-frequence player device that Fig. 5 is provided for embodiments of the invention 2;
Fig. 6 is the schematic flow sheet of the method for controlling volume that the embodiment of the invention provided.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the invention is described in detail.
When the embodiment of the invention provided a kind of adjusting volume, the speed that volume increases or reduces was more even, user's health check-up better and can be satisfying personalized, the audio-frequence player device and the method for controlling volume of differentiation user's use needs.
Embodiment 1:
Audio-frequence player device as shown in Figure 1, that the embodiment of the invention provided comprises broadcast unit, memory cell, control unit and signal unit for scaling, wherein:
Memory cell, the characteristic value of the volume pattern that at least two the audio volume lines of being used to prestore are different;
Control unit; The characteristic value that is used for reading cells, and according to characteristic value, the pairing volume pattern of characteristic value and the pairing audio volume line control signal of volume pattern unit for scaling audio signal is carried out convergent-divergent processing and transmitting to broadcast unit and play.
Because the memory cell that the embodiment of the invention provided prestores at least two different volume patterns; And the audio volume line of different volume patterns is different; Can design a plurality of volume patterns according to user's hobby and needs; Make different users can switch according to hobby, select the different pairing volume patterns of audio volume line, thereby use satisfying personalized, differentiation user need;
Simultaneously; Even the audio volume line of each volume pattern that the embodiment of the invention provided is designed to the needs that level and smooth curve or straight line also can satisfy different user; Need not to adopt prior art the audio volume line is made as before and after the method for two sections or quite a few sections; So can make that the speed ratio of increase or minimizing of volume is more even; And then improve user's experience, so solved prior art exist the inhomogeneous user's of causing of speed the experience of increase or minimizing of volume not good and can't be satisfying personalized, the technical problem of differentiation user's use needs.
The convergent-divergent that the signal unit for scaling carries out audio signal is handled, and both can only be that to dwindle processing can only be processing and amplifying also, also can dwindle earlier and dwindle processing after handling back processing and amplifying or first processing and amplifying.
As shown in Figure 2, the signal unit for scaling comprises attenuation units and power amplifier unit in the present embodiment, wherein:
Attenuation units is used for according to the instruction of control unit audio signal being carried out decay in various degree, and the input of the audio signal after will decaying power amplifier unit;
Being sent to broadcast unit after the audio signal that power amplifier unit is used for that it is received is amplified plays.
Control unit is according to the mode switch instruction of user's input; Read characteristic value from memory cell; And the audio signal that is sent to broadcast unit is carried out decay in various degree according to characteristic value, the pairing volume pattern of characteristic value and the pairing audio volume line traffic control of volume pattern attenuation units; The amplitude size of the audio signal after the decay is different; Power amplifier unit with the amplitude size be different audio signals to carry out amplification multiple be consistent, so it is bigger to be sent to the amplitude size differences of the audio signal that broadcast unit plays, it is also inconsistent to switch the resulting sound size of different volume patterns.
Attenuation units is an attenuator in the present embodiment, and power amplifier unit is a power amplifier.Attenuator is the comparatively stable attenuating device of performance, can effectively decay to audio signal; The power amplifier better performances of power amplifier can effectively be amplified audio signal with fixing multiple.
As shown in Figure 1, embodiment of the invention audio-frequence player device also comprises audio decoding unit, and audio decoding unit is used for from the audio signal source received audio signal, and with audio signal decoding, processing back input signal unit for scaling.Audio signal source can be TV station, broadcasting station, also can be data fetch equipments such as DVD or VCD.The audio signal form that audio signal source provided comprises wherein one or more of TV signal, AV signal, usb signal and HDMI signal.TV signal, AV signal, usb signal and HDMI signal be often see, General Audio signal format, so versatility of the present invention is relatively good, the scope of application is wider.
As shown in Figure 2; This audio-frequence player device also comprises the video playback unit that is used for the display video picture, and the content of video pictures comprises relation and/or the actual volume size between the pairing audio volume line of different volume patterns, characteristic value and the audio volume line.Video playback unit institute picture displayed can instruct, point out the user how to operate, thereby realizes man-machine interaction, reduces the probability of misoperation.
Please consult Fig. 3 in the lump, the audio volume line is that the power output of actual volume size or broadcast unit and the ratio point set of volume numerical value form, and the volume pattern comprises pattern 1, pattern 22 and pattern 33, wherein:
Pattern one 1 pairing audio volume lines are the shaped form of evagination, and pattern 22 pairing audio volume lines are shape linearly, and pattern 33 pairing audio volume lines are the shaped form of indent.
The ratio of the power output of actual volume size or broadcast unit and volume numerical value can be expressed the power output of volume and broadcast unit and the relation between the volume numerical values recited.The curved audio volume line volume numerical value that pattern 1 is pairing to be evagination hour, the power output of this broadcast unit and actual volume increase very fast; Pattern 33 is pairing to be the curved audio volume line volume numerical value of indent when big, and the power output of this broadcast unit and actual volume increase very fast; The audio volume line slope of pattern 22 pairing linearly shapes is identical, so volume numerical value is less, when big, the power output of this broadcast unit and the actual volume unanimity that gathers way.
This audio-frequence player device is a television set, and the video playback unit is the display of television set, and broadcast unit is loud speaker, earphone or stereo set, and memory cell is a register.The memory cell that the embodiment of the invention provided, control unit, attenuation units, audio decoding unit and map unit all can be arranged on the master chip of television set.Television set is one of the highest audio-frequence player device of popularity rate, uses the volume adjusting function that technical scheme provided by the present invention can be improved television set.Certainly, the present invention also can be applied to other audio-frequence player devices or the playing audio/video outside the television set, the cheap and more common property of loud speaker and register.
Embodiment 2:
Like Fig. 4 and shown in Figure 5; Present embodiment and embodiment 1 are basic identical; Its difference is: the audio-frequence player device that present embodiment provided also comprises map unit, and map unit is used to prestore or writes down actual volume size when identical, the corresponding relation between the characteristic value of different sound accompaniment patterns;
Control unit is used for according to the corresponding relation between the characteristic value of the mode switch instruction of user's input and the different sound accompaniment pattern that map unit prestored or write down, and reads the characteristic value of the sound accompaniment pattern of the pairing desire switching of the characteristic value of switching preceding sound accompaniment pattern from memory cell.
Control unit is according to the corresponding relation between the characteristic value of the mode switch instruction of user input and different sound accompaniment pattern in the present embodiment; The pairing actual volume size of characteristic value of the sound accompaniment pattern that the pairing desire of the characteristic value of the sound accompaniment pattern before the switching that memory cell read is switched is identical; After switching the completion of volume pattern like this; The volume of this audio-frequence player device also is identical, has avoided after the volume mode switch sound flip-flop; Give the lofty sensation of user, thus improve the user experience, make the user more joyful.
Corresponding relation between the characteristic value of institute's different sound accompaniment pattern of prestoring or writing down that the content of the video pictures that the video playback unit showed that the embodiment of the invention provided also comprises map unit.Corresponding relation between the characteristic value of the different sound accompaniment pattern that the video playback unit is shown can point out the user to select which volume pattern proper, user-friendly according to hobby.
As shown in Figure 6, method for controlling volume provided by the present invention may further comprise the steps:
The prestore characteristic value of the different volume pattern of at least two audio volume lines of step 1, memory cell;
Characteristic value in step 2, the control unit reading cells, and according to characteristic value, the pairing volume pattern of characteristic value and the pairing audio volume line control signal of volume pattern unit for scaling audio signal is carried out convergent-divergent processing and transmitting to broadcast unit and play.
Because the embodiment of the invention has the audio-frequence player device that is provided with the invention described above embodiment 1 and embodiment 2 and has identical technical characterictic, so also can produce identical technique effect, solves identical technical problem.
Be pattern 22 as shown in Figure 3 below before the volume mode switch with audio-frequence player device provided by the present invention, characteristic value is that volume numerical value 30 is example, the method for controlling volume of setting forth the embodiment of the invention more in detail and being provided.
S1, volume numerical value is 30 o'clock under pattern 22 states; The user feels that the too little and/or volume numerical value of actual volume increases or to reduce speed slower between 1～50; Then to control unit input pattern switching command, command content is " pattern 22 is switched to pattern 1 ";
S2, control unit instruct according to the mode switch of user's input; Read characteristic value from memory cell; This characteristic value is the volume numerical value 30 under the pattern 1; Control unit is handled according to the convergent-divergent that this characteristic value, the pairing volume pattern of this characteristic value and the pairing audio volume line control signal of volume pattern unit for scaling carry out in various degree the audio signal that is sent to broadcast unit, and the audio signal after then convergent-divergent being handled is sent to broadcast unit and plays through broadcast unit.
Because the actual volume of the volume numerical value 30 under the pattern 1 is higher than the actual volume 30 under the pattern 22, so after switching the volume pattern, actual volume increases and volume numerical value increases between 1～50 or reduces speed and can accelerate.This method for controlling volume is corresponding with the audio-frequence player device that the embodiment of the invention 1 is provided.
The signal unit for scaling comprises attenuation units and power amplifier unit, and the signal unit for scaling carries out the method that convergent-divergent processing and transmitting to broadcast unit is play to audio signal, specifically may further comprise the steps:
Attenuation units is carried out decay in various degree according to the instruction of control unit to audio signal, and the input of the audio signal after will decaying power amplifier unit;
Being sent to broadcast unit after power amplifier unit amplifies the audio signal that it received plays.
As the further improvement of the method for controlling volume that the embodiment of the invention provided, the method for the characteristic value in the control unit reading cells that present embodiment provided specifically may further comprise the steps:
Map unit prestores or writes down actual volume size when identical, the corresponding relation between the characteristic value of different sound accompaniment patterns;
Control unit reads the characteristic value of the sound accompaniment pattern of the pairing desire switching of the characteristic value of switching preceding sound accompaniment pattern according to the corresponding relation between the characteristic value of the mode switch instruction of user's input and the different sound accompaniment pattern that map unit prestored or write down from memory cell.
Be pattern 22 as shown in Figure 3 before the volume mode switch with audio-frequence player device provided by the present invention still below, characteristic value is that volume numerical value 30 is example, the method for controlling volume of setting forth the embodiment of the invention more in detail and being provided.
S1, in volume pattern 22, volume numerical value is 30 o'clock, the user feels that the too little and/or volume numerical value of actual volume increases or to reduce speed slower between 1～50, input pattern switching command then, command content is " pattern 22 is switched to pattern 1 ";
S2, control unit are according to the corresponding relation between the characteristic value of the mode switch instruction of user's input and the different sound accompaniment pattern that map unit prestored or write down; During from memory cell read mode 22 volume numerical value 30; The volume pattern that the pairing desire of actual volume size is switched is the volume numerical value (for example: volume numerical value is 10) of pattern 1; Control unit is that the convergent-divergent that pattern 1 and pattern one 1 pairing audio volume line control signal unit for scaling carry out in various degree the audio signal that is sent to broadcast unit is handled according to volume numerical value 10, volume numerical value 10 pairing volume patterns, and the audio signal after then convergent-divergent being handled is sent to broadcast unit and plays through broadcast unit;
Because the actual volume of the volume numerical value 30 under the pattern 22 equals the actual volume 10 under the pattern 1, so after switching the volume pattern, actual volume does not change.
S3, volume mode switch are after the pattern 1, and the user can import the volume control command, the speed that increases or reduce in one 1 times control of pattern volume, thus reach desirable volume regulating effect.
When the actual volume size as shown in Figure 4 that map unit prestored or write down in the present embodiment is identical; Corresponding relation between the characteristic value of different sound accompaniment patterns both can be explained in the product description of audio-frequence player device provided by the present invention, also can show through the video playback unit.This method for controlling volume is corresponding with the audio-frequence player device that the embodiment of the invention 2 is provided.
As the further improvement of method for controlling volume provided by the present invention, method for controlling volume provided by the present invention is further comprising the steps of:
Video playback unit displaying contents comprises the video pictures of the corresponding relation between the characteristic value of relation, actual volume size between the pairing audio volume line of different volume patterns, characteristic value and the audio volume line and/or the different sound accompaniment pattern that map unit prestored or write down.
The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; Can expect easily changing or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (8)
1. audio-frequence player device is characterized in that: comprise broadcast unit, memory cell, control unit, map unit and signal unit for scaling, wherein:
Said memory cell, the characteristic value of the volume pattern that at least two the audio volume lines of being used to prestore are different, power output that said audio volume line is actual volume size or broadcast unit and the set of the ratio point of volume numerical value form;
Said map unit is used to prestore or writes down actual volume size when identical, the corresponding relation between the characteristic value of different sound accompaniment patterns;
Said control unit; Be used for according to the corresponding relation between the characteristic value of the mode switch instruction of user's input and the different sound accompaniment pattern that said map unit prestored or write down; Read the characteristic value of the sound accompaniment pattern of the pairing desire switching of the characteristic value of switching preceding sound accompaniment pattern from said memory cell, and according to said characteristic value, the pairing volume pattern of said characteristic value and the said signal unit for scaling of the pairing audio volume line traffic control of said volume pattern audio signal is carried out convergent-divergent processing and transmitting to said broadcast unit and play.
2. audio-frequence player device according to claim 1 is characterized in that: said signal unit for scaling comprises attenuation units and power amplifier unit, wherein:
Said attenuation units is used for according to the instruction of said control unit audio signal being carried out decay in various degree, and the audio signal after will decaying is imported said power amplifier unit;
Being sent to said broadcast unit after the audio signal that said power amplifier unit is used for that it is received is amplified plays.
3. audio-frequence player device according to claim 2 is characterized in that: said attenuation units is an attenuator, and said power amplifier unit is a power amplifier.
4. audio-frequence player device according to claim 1; It is characterized in that: this audio-frequence player device also comprises the video playback unit that is used for the display video picture, and the content of said video pictures comprises the corresponding relation between the characteristic value of relation, actual volume size and/or the different sound accompaniment pattern that said map unit prestored or write down between the different pairing audio volume lines of said volume pattern, said characteristic value and the said audio volume line.
5. according to any described audio-frequence player device of claim 1-3, it is characterized in that: said volume pattern comprises pattern one, pattern two and pattern three, wherein:
Said pattern one pairing audio volume line is the shaped form of evagination, and said pattern two pairing audio volume lines are shape linearly, and said pattern three pairing audio volume lines are the shaped form of indent.
6. method for controlling volume is characterized in that: may further comprise the steps:
The prestore characteristic value of the different volume pattern of at least two audio volume lines of memory cell, power output that said audio volume line is actual volume size or broadcast unit and the set of the ratio point of volume numerical value form;
Map unit prestores or writes down actual volume size when identical, the corresponding relation between the characteristic value of different sound accompaniment patterns;
Control unit is according to the corresponding relation between the characteristic value of the mode switch instruction of user's input and the different sound accompaniment pattern that said map unit prestored or write down; Read the characteristic value of the sound accompaniment pattern of the pairing desire switching of the characteristic value of switching preceding sound accompaniment pattern from said memory cell, and according to said characteristic value, the pairing volume pattern of said characteristic value and the said signal unit for scaling of the pairing audio volume line traffic control of said volume pattern audio signal is carried out convergent-divergent processing and transmitting to said broadcast unit and play.
7. method for controlling volume according to claim 6; It is characterized in that: said signal unit for scaling comprises attenuation units and power amplifier unit; Said signal unit for scaling carries out the method that convergent-divergent processing and transmitting to said broadcast unit is play to audio signal, specifically may further comprise the steps:
Said attenuation units is carried out decay in various degree according to the instruction of said control unit to audio signal, and the audio signal after will decaying is imported said power amplifier unit;
Being sent to said broadcast unit after said power amplifier unit amplifies the audio signal that it received plays.
8. method for controlling volume according to claim 6 is characterized in that: this method for controlling volume is further comprising the steps of:
Video playback unit displaying contents comprises the video pictures of the corresponding relation between the characteristic value of relation, actual volume size and/or the different sound accompaniment pattern that said map unit prestored or write down between the different pairing audio volume lines of said volume pattern, said characteristic value and the said audio volume line.
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| CN103384317A (en) * | 2012-05-04 | 2013-11-06 | 瑞萨电子(中国)有限公司 | Television receiver and volume adjusting method thereof |
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| CN103384316B (en) * | 2012-05-04 | 2016-12-21 | 瑞萨电子(中国)有限公司 | Radiotelevisor and volume curve adjustment method thereof |
| CN108307228B (en) * | 2018-02-05 | 2020-01-24 | 深圳创维－Rgb电子有限公司 | Sound effect adjusting method and device, television and storage medium |
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| EP2031902A3 (en) * | 2007-08-31 | 2010-09-15 | Victor Company Of Japan, Limited | Audio-signal processing apparatus and method |
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| CN1484377A (en) * | 2002-08-13 | 2004-03-24 | ���ǵ�����ʽ���� | Sound volume contvol equipment and method |
| CN100438597C (en) * | 2004-02-13 | 2008-11-26 | 鸿富锦精密工业（深圳）有限公司 | Sound volume adjusting apparatus and method |
| CN1901646A (en) * | 2006-06-30 | 2007-01-24 | 康佳集团股份有限公司 | TV set sound volume control method |
| EP2031902A3 (en) * | 2007-08-31 | 2010-09-15 | Victor Company Of Japan, Limited | Audio-signal processing apparatus and method |
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| CN103384317A (en) * | 2012-05-04 | 2013-11-06 | 瑞萨电子(中国)有限公司 | Television receiver and volume adjusting method thereof |
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| CN101635561A (en) | 2010-01-27 |
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Address after: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee after: Hisense Visual Technology Co., Ltd. Address before: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee before: QINGDAO HISENSE ELECTRONICS Co.,Ltd. |