CN101383924B - Method for implementing virtual 10 wave range television volume tuning using 5 range equalizer - Google Patents
Method for implementing virtual 10 wave range television volume tuning using 5 range equalizer Download PDFInfo
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- CN101383924B CN101383924B CN2008101523059A CN200810152305A CN101383924B CN 101383924 B CN101383924 B CN 101383924B CN 2008101523059 A CN2008101523059 A CN 2008101523059A CN 200810152305 A CN200810152305 A CN 200810152305A CN 101383924 B CN101383924 B CN 101383924B
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Abstract
The invention relates to a method for realizing visual ten-band controlling television sound volume by utilizing a five-band equalizer, which is characterized in that the implementation steps are as follows: five control bars are added in an equalizer control interface in a television operation menu and are inserted into the five original control bars; the control range of each of the original control bars is reduced to one third, and the rest two thirds are respectively distributed to the adjacent left and right new added control bars; the new added control bars control the frequency response gain of two adjacent left and right frequency points; and the action accuracy of the control bar is improved to 0.125dB/step from the original 1dB/step. The method is reasonable in design and simple in operation steps, only needs to set a control program without increasing the cost of any hardware, effectively realizes the function of ten-band sound equalizing control, brings convenience to users, and has wide market prospects as well as wide application.
Description
Technical field
The present invention relates to a kind of high-end TV audio system, comprise the sound power amplifier system of simulation and numeral output; Be particularly related to and a kind ofly utilize five sections equalizers to realize the method for virtual ten wave band television volume tunings.
Background technology
At present, now the kinescope TV on the domestic and international market has only five band equalizer built-in at most, and panel TV also major part be same specification.But the playout software on the multimedia has but been realized the balanced control of ten wave bands.Kinescope TV update simultaneously is obviously slack-off, and the circuit of sound part has not for a long time changed especially; Therefore, brought great inconvenience for people's use, effect is not good enough simultaneously.
Summary of the invention
The objective of the invention is to overcome above-mentioned weak point, provide a kind of and utilize five sections equalizers to realize the method for virtual ten wave band television volume tunings.
The technical solution adopted in the present invention is for achieving the above object: a kind ofly utilize five sections equalizers to realize the method for virtual ten wave band television volume tunings, it is characterized in that implementation step is as follows: the equalizer control interface in television operation menu increases by five control strips, is inserted between original five control strips; The control range of original each control strip is decreased to 1/3rd, and other 2/3rds distribute to the adjacent control strip that increases newly in the left and right sides respectively; The response gain of two side frequency points about the control strip that increases newly is controlled respectively; The operation precision of described control strip is the 0.125dB/ step;
Utilize five sections equalizers to realize the algorithmic formula of virtual ten wave bands:
EQUAL_BAND1＝EQ(100)*4+EQ(50)+EQ(300)，
EQUAL_BAND2＝EQ(500)*4+EQ(300)+EQ(1K)，
EQUAL_BAND3＝EQ(2K)*4+EQ(1K)+EQ(3K)，
EQUAL_BAND4＝EQ(5K)*4+EQ(3K)+EQ(7K)，
EQUAL_BAND5＝EQ(10K)*4+EQ(7K)*2；
The variable on the equal sign left side has been represented the multiplication factor of the filter of each wave band in five sections equalizers in the formula, and promptly the gain of respective filter is represented in EQUAL_BAND1 in the formula～5; The arithmetic formulate on equal sign the right be after making ten sections equalizers, the action of the relevant control strip of corresponding same filter is to the influence of this filter multiplication factor, EQ is a frequency, represent the value of pointer of the control strip of corresponding frequencies, the stepping accuracy of this control strip of digitized representation that multiplies each other thereafter.
The invention has the beneficial effects as follows: this method is reasonable in design, operating procedure is simple, only need modification by software, the setting control program gets final product, need not increase any hardware cost, the operation precision of control strip is brought up to the 0.125dB/ step by the original 1dB/ step, effectively realizes the function of the balanced control of ten wave band sound, brings great convenience to the user; Market prospects are wide, use very extensive.
Description of drawings
The structured flowchart of five sections equalizers of Fig. 1;
Fig. 2 original user operation interface;
Fig. 3 algorithms to improve principle explanation of the present invention schematic diagram.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to details are as follows according to embodiment provided by the invention:
At first, the method for the existing five sections equalizer television volume tunings of contrast, as shown in Figure 1 and Figure 2,
Fig. 1 is the structured flowchart of five sections equalizers, and we can find out that five sections equalizers are by the input and output loop from this figure, and band pass filter that five center frequency points are different and corresponding filter freguency response gain controlling register are formed.The gain of each filter all can be by register controlled.
Shown in Fig. 2 original user operation interface, the user is to adjust by the operation interface that shows on the screen to the control of five sections equalizers of sound on the present television set.Sense of hearing hobby according to residing environment space and individual is adjusted the filter of corresponding frequencies, reaches the melodious purpose of sound.Adjust action and be by moving up and down the pointer position on the column control strip, the frequency response of control corresponding frequencies realizes.The filter gain of each column control strip control corresponding frequencies.Can generally comprise 100/300/1000/3000/10000 hertz for the centre frequency of the filter of adjusting.
I: for fear of because gain excessively causes voice output saturated, at present the actuating range of control strip be-8～+ 8dB, 24 steps.
Present normally used algorithmic formula:
EQUAL_BAND1＝EQ(100)*8
EQUAL_BAND2＝EQ(300)*8
EQUAL_BAND3＝EQ(1K)*8
EQUAL_BAND4＝EQ(3K)*8
EQUAL_BAND5＝EQ(10K)*8
Adjust the position of pointer on the column control strip by operation interface, give pointer variable by mapping relations with the pointer position assignment again,, reach the purpose of adjusting the inner five sections equalizer gain effects of IC through refreshing the value of filter gain control register after the computing.In the formula, the variable on the equal sign left side has been represented the multiplication factor of the filter of each wave band in five sections equalizers, formula the right is to adjust the pointer variable of corresponding frequencies in the interface and the pointer single step product to the influence of filter gain, i.e. one of the every variation of pointer, and the register value variable quantity is 8.This is equivalent to, every one step of variation of pointer, 1 decibel of change in gain.The corresponding calculated result is write in the corresponding register, i.e. the multiplication factor of controllable filter.
Fig. 3 shows the principle of new algorithm of the present invention and the formation of new operation interface.Increase a same adjustment bar of adjusting precision newly in the left side that original each column is adjusted bar.Original control strip 2. 4. 6. 8. 10., newly-increased control strip is 1. 3. 5. 7. 9.; Original control mode is each multiplication factor of adjusting a filter of bar control, and new control mode is a multiplication factor of adjusting a filter of the common control of bar by two or three.By adjusting the mode of stepping accuracy, give two or three control strips like this with the multiplication factor control range mean allocation of a filter.
Utilize five sections equalizers to realize the algorithmic formula of virtual ten wave bands:
EQUAL_BAND1＝EQ(100)*4+EQ(50)+EQ(300)，
EQUAL_BAND2＝EQ(500)*4+EQ(300)+EQ(1K)，
EQUAL_BAND3＝EQ(2K)*4+EQ(1K)+EQ(3K)，
EQUAL_BAND4＝EQ(5K)*4+EQ(3K)+EQ(7K)，
EQUAL_BAND5＝EQ(10K)*4+EQ(7K)*2；
The variable on the equal sign left side has been represented the multiplication factor of the filter of each wave band in five sections equalizers in the formula; The arithmetic formulate on equal sign the right be that the action of the relevant control strip of corresponding same filter is to the influence of this filter multiplication factor after making ten sections equalizers.Existing formula embodies has only a control strip control relevant register, comes as can be seen from the formula that the present invention adopts, and each filter gain control register all is by a plurality of control strips according to different stepping accuracy actings in conjunction thereon.EQUAL_BAND in the formula (1～5) represents the gain of respective filter, and EQ (frequency) represents the value of pointer of the control strip of corresponding frequencies, the stepping accuracy of this control strip of digitized representation that multiplies each other thereafter.
Above-mentionedly utilizing five sections equalizers to realize the detailed description of the method for virtual ten wave band television volume tunings with reference to embodiment to this, is illustrative rather than determinate; Therefore in the variation and the modification that do not break away under the general plotting of the present invention, should belong within protection scope of the present invention.
Claims (1)
1. one kind is utilized five sections equalizers to realize the method for virtual ten wave band television volume tunings, it is characterized in that implementation step is as follows: the equalizer control interface in television operation menu increases by five control strips, is inserted between original five control strips; The control range of original each control strip is decreased to 1/3rd, and other 2/3rds distribute to the adjacent control strip that increases newly in the left and right sides respectively; The response gain of two side frequency points about the control strip that increases newly is controlled respectively; More than all the operation precision of control strips be the 0.125dB/ step;
Utilize five sections equalizers to realize the algorithmic formula of virtual ten wave bands:
EQUAL_BAND1＝EQ(100)*4+EQ(50)+EQ(300)，
EQUAL_BAND2＝EQ(500)*4+EQ(300)+EQ(1K)，
EQUAL_BAND3＝EQ(2K)*4+EQ(1K)+EQ(3K)，
EQUAL_BAND4＝EQ(5K)*4+EQ(3K)+EQ(7K)，
EQUAL_BAND5＝EQ(10K)*4+EQ(7K)*2；
The variable on the equal sign left side has been represented the multiplication factor of the filter of each wave band in five sections equalizers in the formula, and promptly the gain of respective filter is represented in EQUAL_BAND1 in the formula～5; The arithmetic formulate on equal sign the right be after making ten sections equalizers, the action of the relevant control strip of corresponding same filter is to the influence of this filter multiplication factor, EQ represents the value of pointer of the control strip of corresponding frequencies, the stepping accuracy of this control strip of digitized representation that multiplies each other thereafter.
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| CN102404517A (en) * | 2010-09-10 | 2012-04-04 | 康佳集团股份有限公司 | Television device and sound accompanying and debugging method thereof |
| US9113272B2 (en) * | 2010-10-14 | 2015-08-18 | Phonak Ag | Method for adjusting a hearing device and a hearing device that is operable according to said method |
| CN108377444B (en) * | 2018-03-21 | 2021-02-19 | 北京酷我科技有限公司 | Sound effect equalizer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1395788A (en) * | 2000-11-14 | 2003-02-05 | 皇家菲利浦电子有限公司 | Telephony device comprising display screen on which adjustment parameters |
| CN1901554A (en) * | 2005-07-19 | 2007-01-24 | 乐金电子(中国)研究开发中心有限公司 | Incoming call informing device and method for mobile terminal |
| CN101241736A (en) * | 2007-02-07 | 2008-08-13 | 三星电子株式会社 | Method and apparatus for decoding parametric-encoded audio signal |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1395788A (en) * | 2000-11-14 | 2003-02-05 | 皇家菲利浦电子有限公司 | Telephony device comprising display screen on which adjustment parameters |
| CN1901554A (en) * | 2005-07-19 | 2007-01-24 | 乐金电子(中国)研究开发中心有限公司 | Incoming call informing device and method for mobile terminal |
| CN101241736A (en) * | 2007-02-07 | 2008-08-13 | 三星电子株式会社 | Method and apparatus for decoding parametric-encoded audio signal |
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| JP特开平11-112254A 1999.04.23 |
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Owner name: TIANJIN SANXING ELECTRONIC CO., LTD. Free format text: FORMER OWNER: SANSUNG ELECTRONIC DISPLAY CO., LTD., TIANJIN Effective date: 20111025 |
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