CN103686424B - The automatic setting method and device of sound system - Google Patents
The automatic setting method and device of sound system Download PDFInfo
- Publication number
- CN103686424B CN103686424B CN201310687552.XA CN201310687552A CN103686424B CN 103686424 B CN103686424 B CN 103686424B CN 201310687552 A CN201310687552 A CN 201310687552A CN 103686424 B CN103686424 B CN 103686424B
- Authority
- CN
- China
- Prior art keywords
- television channel
- sound system
- preset
- time
- audio signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 55
- 230000005236 sound signal Effects 0.000 claims abstract description 171
- 238000001914 filtration Methods 0.000 claims description 22
- 238000004088 simulation Methods 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 230000005611 electricity Effects 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 241001274660 Modulus Species 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Electrophonic Musical Instruments (AREA)
- Stereophonic System (AREA)
Abstract
The invention discloses the automatic setting method and device of a kind of sound system, the present invention is after television channel search terminates, the television channel for searching is selected to play out one by one, and for currently playing television channel configures preset sound system one by one, for the first time and after default second time, the audio signal of the predeterminated frequency of the currently playing television channel output is obtained for the second time, each crest value in the first Preset Time, correspondence calculates the average value a and b of all crest values of acquisition, if a is not equal to b, then configure the sound system that the preset sound system is the currently playing television channel.Realization automatically identifies the sound system of each television channel televised, and is correspondingly arranged the sound system of each television channel, realizes the automation that television channel sound system is set, and improves the efficiency that television channel sound system is set.
Description
Technical field
Field is set the present invention relates to TV operational factor, the automatic setting method and dress of sound system is related specifically to
Put.
Background technology
TV is increasingly welcome because of its abundant broadcasting content by many people.Therefore, increasing TV Festival
Mesh and television channel are developed, and the sound system of each television channel of exploitation may be different（For example, there is the sound accompaniments such as D, K, I or B
Standard）, TV after tuning terminates, it is necessary to be configured to the sound system of each channel, to ensure normal viewing effect.
At present, the set-up mode of sound system is configured for user manually after tuning terminates, the process for setting manually
Mainly to recall setting menu by remote control, selected one by one from different sound systems, finally prestored sound system from multiple
In, choose sound system corresponding with the television channel played.
The above-mentioned manual mode process for setting television channel sound system is numerous and diverse, it is necessary to take a long time to each TV
The sound system of channel is configured, and reduces the efficiency of television channel sound system setting.
The content of the invention
The main object of the present invention is the automatic setting method and device for providing a kind of sound system, realizes automatically identifying
The sound system of each television channel televised, and the sound system of each television channel is correspondingly arranged, realize TV frequently
The automation that road sound system is set, improves the efficiency that television channel sound system is set.
The present invention proposes a kind of automatic setting method of sound system, and the method comprising the steps of：
A, after television channel search terminates, select the television channel for searching to play out one by one, and for currently playing
Television channel configure preset sound system one by one；
B, after a preset sound system is configured for currently playing television channel, this is obtained for the first time currently playing
The audio signal of the predeterminated frequency of television channel output, each crest value in the first Preset Time, and calculate for the first time
The average value a of all crest values for obtaining；
C, when first time the crest value is obtained from, or, when the average value a is calculated from second it is default when
Between after, the audio signal of the predeterminated frequency of currently playing television channel output is obtained for the second time, in the first Preset Time
Each interior crest value, and calculate the average value b of all crest values of second acquisition；
If D, a are not equal to b, the sound system that the preset sound system is the currently playing television channel is configured, or
Person, if a is equal to b, for the currently playing television channel configures another preset sound system not configured, and repeats
Above-mentioned steps B and C, until all of preset sound system configuration is finished.
Preferably, the step of television channel for selecting to search one by one is played out includes：
According to the 3rd prefixed time interval, the television channel for searching is selected to play out one by one；Or
The television channel for searching is selected to play out one by one, in currently playing television channel configuration successful sound system
When, select another television channel not played out to play out, or, it is pre- with all of in currently playing television channel
When putting sound system configuration failure, another television channel not played out is selected to play out.
Preferably, the step B includes：
B1, after a preset sound system is configured for currently playing television channel, the currently playing TV is defeated
The audio signal of the predeterminated frequency for going out is filtered treatment；
B2, the simulated audio signal after filtering process is converted into digital audio and video signals, the DAB letter from after conversion
In number, the audio signal of predeterminated frequency is determined；
Each crest value of the audio signal that B3, acquisition determine in the first Preset Time, and calculate acquisition for the first time
All crest values average value a.
Preferably, the step B2 is replaced with：
B4, the simulated audio signal after filtering process is carried out lower half wave pressure contracting, to obtain the upper half after lower half wave pressure contracts
Wave simulation audio signal, and from the upper half wave simulation audio signal for obtaining, determine the audio signal of predeterminated frequency.
The present invention also proposes a kind of automatic setting method of sound system, and the method comprising the steps of：
E, when a television channel is often searched, for the current television channel for searching configures preset sound accompaniment system one by one
Formula；
F, for the current television channel for searching configure a preset sound system after, the TV is obtained for the first time
The audio signal of the predeterminated frequency of channel output, each crest value in the first Preset Time, and calculate acquisition for the first time
All crest values average value a；
G, when first time the crest value is obtained from, or, when the average value a is calculated from second it is default when
Between after, obtain for the second time the current television channel output predeterminated frequency audio signal, it is each in the first Preset Time
Individual crest value, and calculate the average value b of all crest values of second acquisition；
If H, a are not equal to b, the sound system that the preset sound system is the current television channel is configured, or, if a
Equal to b, then for the current television channel configures another preset sound system not configured, and repeat above-mentioned steps F and
G, until all of preset sound system configuration is finished.
The present invention also proposes a kind of automatic setting device of sound system, and the device includes：
Processing module, for after television channel search terminates, selecting the television channel for searching to play out one by one, and
For currently playing television channel configures preset sound system one by one；
Magnitude computation module, for after a preset sound system is configured for currently playing television channel, for the first time
Obtain the audio signal of the predeterminated frequency of the currently playing television channel output, each crest in the first Preset Time
Value, and calculate the average value a of all crest values for obtaining for the first time；And
First time obtain the crest value when from, or, when the average value a is calculated from the second Preset Time
Afterwards, the audio signal of the predeterminated frequency of the currently playing television channel output is obtained for the second time, in the first Preset Time
Each crest value, and calculate the average value b of all crest values of second acquisition；
Sound accompaniment setup module, if being not equal to b for a, configure the preset sound system be the currently playing TV frequently
The sound system in road；Or, if a is equal to b, processing module is that the currently playing television channel configures what another was not configured
Preset sound system, and a and b are calculated by magnitude computation module, until all of preset sound system configuration is finished.
Preferably, the processing module, for according to the 3rd prefixed time interval, the television channel for searching being selected one by one
Play out；Or
The television channel for searching is selected to play out one by one, in currently playing television channel configuration successful sound system
When, select another television channel not played out to play out, or, it is pre- with all of in currently playing television channel
When putting sound system configuration failure, another television channel not played out is selected to play out.
Preferably, the device also includes modular converter,
The processing module, for after a preset sound system is configured for currently playing television channel, should
The audio signal of the predeterminated frequency of the TV output of preceding broadcasting is filtered treatment；
The modular converter, for the simulated audio signal after filtering process to be converted into digital audio and video signals, from conversion
In digital audio and video signals afterwards, the audio signal of predeterminated frequency is determined；
The magnitude computation module, for obtaining each crest value of the audio signal for determining in the first Preset Time,
And calculate the average value a of all crest values for obtaining for the first time.
Preferably, the processing module, is additionally operable to for the simulated audio signal after filtering process to carry out lower half wave pressure contracting, with
The upper half wave simulation audio signal after the contracting of lower half wave pressure is obtained, and from the upper half wave simulation audio signal for obtaining, it is determined that default
The audio signal of frequency.
The present invention also proposes a kind of automatic setting device of sound system, and the device includes：
Processing module, for when a television channel is often searched, for the current television channel for searching is configured one by one
Preset sound system；
Magnitude computation module, for for the current television channel for searching configure a preset sound system after, first
The audio signal of the secondary predeterminated frequency for obtaining current television channel output, each crest value in the first Preset Time, and
Calculate the average value a of all crest values for obtaining for the first time；And
First time obtain the crest value when from, or, when the average value a is calculated from the second Preset Time
Afterwards, the audio signal of the predeterminated frequency of current television channel output, each in the first Preset Time are obtained for the second time
Crest value, and calculate the average value b of all crest values of second acquisition；
Sound accompaniment configuration module, if being not equal to b for a, configures the companion that the preset sound system is the current television channel
Sound standard, or, if a is equal to b, processing module is that the current television channel configures another preset sound accompaniment system not configured
Formula, and a and b are calculated by magnitude computation module, until all of preset sound system configuration is finished.
Compared with the prior art, the present invention selects the television channel for searching to be broadcast one by one after television channel has been searched for
Put, and for currently playing television channel configures preset sound system one by one, for the first time and after default second time, second
Obtain the audio signal of the predeterminated frequency of the currently playing television channel output, each crest in the first Preset Time
Value, correspondence calculates the average value a and b of all crest values of acquisition, if a is not equal to b, configures the preset sound system to be somebody's turn to do
The sound system of currently playing television channel.Realization automatically identifies the sound system of each television channel televised,
And the sound system of each television channel is correspondingly arranged, and the automation that television channel sound system is set is realized, improve TV frequently
The efficiency that road sound system is set.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the first embodiment of the automatic setting method of sound system of the present invention；
Fig. 2 is the waveform diagram of audio signal when sound system sets wrong；
Fig. 3 is the waveform diagram of audio signal when sound system sets correct；
Fig. 4 is the schematic flow sheet of the second embodiment of the automatic setting method of sound system of the present invention；
Fig. 5 is the schematic diagram of the hardware structure that sound system is set；
Fig. 6 is the schematic flow sheet of the 3rd embodiment of the automatic setting method of sound system of the present invention；
Fig. 7 is the schematic diagram of another hardware structure that sound system is set
Fig. 8 is the schematic flow sheet of the fourth embodiment of the automatic setting method of sound system of the present invention；
Fig. 9 is the functional block diagram of the first embodiment of the automatic setting device of sound system of the present invention；
Figure 10 is the functional block diagram of the second embodiment of the automatic setting device of sound system of the present invention；
Figure 11 is the functional block diagram of the 3rd embodiment of the automatic setting device of sound system of the present invention.
The realization of the object of the invention, functional characteristics and advantage will be described further referring to the drawings in conjunction with the embodiments.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
As shown in figure 1, the schematic flow sheet of the first embodiment for the automatic setting method of sound system of the present invention.
It is emphasized that：Flow chart shown in Fig. 1 is only a preferred embodiment, and those skilled in the art appoints when knowing
What should not all depart from the scope covered in following technical scheme around the embodiment that inventive concept builds：
A, after television channel search terminates, select the television channel for searching to play out one by one, and for currently playing
Television channel configure preset sound system one by one；B, it is being that currently playing television channel configures a preset sound system
Afterwards, the audio signal of the predeterminated frequency of the currently playing television channel output is obtained for the first time, in the first Preset Time
Each crest value, and calculate the average value a of all crest values for obtaining for the first time；C, first time obtain the crest value when
Rise, or, when the average value a is calculated from the second Preset Time after, the currently playing TV is obtained for the second time
The audio signal of the predeterminated frequency of channel output, each crest value in the first Preset Time, and calculate second acquisition
All crest values average value b；If D, a are not equal to b, it is the currently playing television channel to configure the preset sound system
Sound system, or, if a be equal to b, for the currently playing television channel configures another preset sound accompaniment system not configured
Formula, and above-mentioned steps B and C are repeated, until all of preset sound system configuration is finished.
The step of sound system be done step-by-step the following is the present embodiment setting automatically：
Step S11, after television channel search terminates, selects the television channel for searching to play out, and be to work as one by one
The television channel of preceding broadcasting configures preset sound system one by one.
In the present embodiment, TV presets multiple sound systems（For example, D, K, I, B or G etc.）, TV can be with preset
One or more in stating.The carrier frequency of the preset sound system can be with identical or difference, and each television channel is by matching somebody with somebody
The corresponding carrier frequency of preset sound system put, the audio signal of the multiple different frequencies of output, for example, the carrier frequency of D, K standard is identical,
All it is 6.5KHZ, the carrier frequency of B, G standard is 5.5KHZ, if the preset sound system that television channel is currently configured is D, the TV
Channel is by carrier frequency 6.5KHZ, the audio signal of output multiple different frequencies（The audio signal of 2KHZ, 2.5KHZ or 3KHZ etc.）.
When the automatic channel search for receiving user is instructed, TV carries out tuning operation automatically, or, receiving the manual tuning of user
During instruction, according to each tuning instruction for receiving, corresponding television channel is searched.After television channel is searched for and terminated automatically,
Or according to each manual tuning instruction of user, after having searched for television channel, if only search a television channel, will
The channel for searching is played out, or, when multiple television channels are searched, select the television channel for searching to enter one by one
Row is played, and for currently playing television channel configures preset sound system one by one.In the television channel that selection is searched
It is that currently playing television channel configures a preset sound system or the multiple preset sound accompaniments of carrier frequency identical when playing out
Standard.In other embodiments of the present invention, in order to be able to enable users to timely watch searched television channel, in search
When the television channel for arriving is played for the first time, just for the television channel configures sound system, it is to avoid searched in all television channels and tied
Shu Hou, one by one for each television channel for searching configures sound system, and influences user to watch the television channel for searching.
Step S12, after a preset sound system is configured for currently playing television channel, obtains this current for the first time
The audio signal of the predeterminated frequency of the television channel output of broadcasting, each crest value in the first Preset Time, and calculate
The average value a of all crest values for obtaining for the first time；
Step S13, first time obtain the crest value when from, or, when the average value a is calculated from second
After Preset Time, the audio signal of the predeterminated frequency of the currently playing television channel output is obtained for the second time, it is pre- first
If each crest value in the time, and calculate the average value b of all crest values of second acquisition.
In the present embodiment, one or more preset sound accompaniment of carrier frequency identical is being configured for currently playing television channel
After standard, the currently playing television channel passes through the carrier frequency of the preset sound system for configuring, the sound of the multiple different frequencies of output
Frequency signal, obtains the audio signal of the predeterminated frequency of the currently playing television channel output for the first time（It is currently playing from this
The corresponding carrier frequency of preset sound system of television channel configuration, in the audio signal of multiple different frequencies of output, it is determined that default
The audio signal of frequency, the audio signal of currently playing television channel output is simulated audio signal）, in the first Preset Time
Each interior crest value, and calculate the average value a of all crest values for obtaining for the first time.The predeterminated frequency is preferably
2KHZ, also can also be any suitable frequency that the users such as 1.5KHZ or 2.5KHZ are set in advance.First Preset Time
Preferably 5 milliseconds, also can also be the time interval that any suitable users such as 6 milliseconds or 7 milliseconds are set in advance.2KHz moulds
The cycle for intending audio signal is 0.5 millisecond, and each crest value in each cycle within 0 to 5 millisecond is respectively a0, a1 ...
A9, if just obtained since crest, can get the 11st crest value A10, calculate all ripples for obtaining for the first time
Peak value obtains average value a.From when first time the crest value is obtained, or, when the average value a is calculated from it is second pre-
It is default first if after the time, the audio signal of the predeterminated frequency of the currently playing television channel output is obtained for the second time
Each crest value in time, and the average value b of all crest values of second acquisition is calculated, it is described to obtain institute in first time
From when stating crest value, be when having obtained all crest values in the first Preset Time for the first time from.Second Preset Time is excellent
Elect 500 milliseconds as, also can also be the time interval that any suitable users such as 400 milliseconds or 600 milliseconds are set in advance.
After the b of all crest values that the average value a for calculating all crest values for obtaining for the first time and second are obtained, a and b are entered
Row analysis, to determine whether a is equal to b.
Whether step S14, analysis a is equal to b, if a is not equal to b, performs following step S15；If a is equal to b, to deserve
The television channel of preceding broadcasting configures the preset sound system that another is not configured, and repeats above-mentioned steps S12 and S13, directly
Finished to all of preset sound system configuration.
Step S15, configures the sound system that the preset sound system is the currently playing television channel.
In the present embodiment, if a is not equal to b, it is the currently playing television channel to configure the preset sound system
Sound system（After being successfully the sound system configuration successful of the currently playing television channel, no longer for this is currently playing
Television channel is reconfigured at sound system, but after the television channel currently playing for this successfully configures sound system, is playing
During the television channel of the sound system configuration successful, sound accompaniment is directly exported）, play next TV for not configuring sound system frequently
Road, is that currently playing television channel configures preset sound system one by one, and according to above-mentioned steps S12 and S13, to identify down
One sound system of the television channel for not configuring sound system is simultaneously configured, and is next TV for not configuring sound system
Channel assignment sound system；If a is equal to b, for the currently playing television channel configures another preset sound accompaniment not configured
Standard, and above-mentioned steps S12 and S13 are repeated, until all of preset sound system configuration is finished.
The principle of the sound system for identifying television channel is：It is high when sound system sets mistake with reference to Fig. 2
Frequency head audio signal is the noise of many frequency domains, and amplitude is almost equal, detection wherein 2KHz signal amplitudes, and each amplitude is almost
It is equal；With reference to Fig. 3, when sound system setting is correct, although it is also many frequency domains that TV programme are dubbed, amplitude is random
Change.Using These characteristics, the audio signal that can be exported by the television channel of the different time sections for judging to obtain is first
Whether the equal sound system to identify each television channel of average value of all crest values in Preset Time, that is, obtaining
The average value phase of all crest values of the audio signal of the television channel output of the different time sections for taking in the first Preset Time
Deng when, the sound system is not the sound system of current television channel；Exported in the television channel of the different time sections for obtaining
When the average value of all crest values of the audio signal in the first Preset Time is unequal, the sound system is current television channel
Sound system.
In the present embodiment, the step of television channel for selecting to search one by one is played out includes：According to the 3rd
Prefixed time interval, selects the television channel for searching to play out one by one；Or select the television channel for searching to enter one by one
Row is played, and in currently playing television channel configuration successful sound system, selects another television channel not played out
Play out, or, when currently playing television channel is with all of preset sound system configuration failure, select another not
The television channel for playing out is played out.3rd prefixed time interval is default more than the second Preset Time and two first
Time sum, the 3rd prefixed time interval is preferably 510 milliseconds, is currently playing TV to guarantee to have enough time
Channel assignment sound system.
The present embodiment selects the television channel for searching to play out one by one after television channel search terminates, and is to work as
The television channel of preceding broadcasting configures preset sound system one by one, and for the first time and after default second time, second acquisition is deserved
The audio signal of the predeterminated frequency of the television channel output of preceding broadcasting, each crest value in the first Preset Time, to accrued
The average value a and b of all crest values of acquisition are calculated, if a is not equal to b, the preset sound system is configured for this is currently playing
Television channel sound system.Realization automatically identifies the sound system of each television channel televised, and correspondence sets
The sound system of each television channel is put, the automation that television channel sound system is set is realized, television channel sound accompaniment system is improved
The efficiency that formula is set.
As shown in figure 4, the schematic flow sheet of the second embodiment for the automatic setting method of sound system of the present invention.
Based on above-mentioned first embodiment, step S12 includes：
Step S1201, it is after a preset sound system is configured for currently playing television channel, this is currently playing
The audio signal of TV output is filtered treatment；
Step S1202, digital audio and video signals are converted to by the simulated audio signal after filtering process, the numeral from after conversion
In audio signal, the audio signal of predeterminated frequency is determined；
Step S1203, obtains each crest value of the audio signal for determining in the first Preset Time, and calculate first
The average value a of all crest values of secondary acquisition.
In the present embodiment, after a preset sound system is configured for currently playing television channel, with reference to Fig. 5, U1
It is the tuner chip si2176 of Silicon lab productions；U5 is operational amplifier, and U5 is constituted with C2, C3, C4, R3, R4, R5
High pass low pass frequency selection circuit constitutes 2K active band-pass filters, filters the high frequency low frequency signal not needed, in order to avoid produce interference, i.e.,
After by filtering process, the audio signal of unwanted high frequency or low frequency is filtered, obtained needing the audio of frequency
Signal, the Audio of tuner output（Simulated audio signal）After C1 is coupled to the high pass low pass filter treatment that U5 is constituted,
The analogue audio frequency input of U2 is coupled to by C5, U2 is 24 moduluses of Texas Instrument's production（A/D）Converter PCM1808,
Changed by A/D and simulated audio signal is converted into digital audio and video signals, digital audio and video signals can preferably obtain audio letter
Number crest value, from the digital audio and video signals after conversion determine predeterminated frequency audio signal, that is, obtain need treatment sound
Frequency signal, obtains each crest value of the audio signal for determining in the first Preset Time, and calculate the institute for obtaining for the first time
Have the average value a of crest value, when first time the crest value is obtained from, or, when the average value a is calculated from the
After two Preset Times, the audio signal of the predeterminated frequency of the currently playing television channel output is obtained for the second time, first
Each crest value in Preset Time, and the average value b of all crest values of second acquisition is calculated, if a is not equal to b,
The sound system that the preset sound system is the currently playing television channel is configured, by the DAB exported after U2 conversions
Signal（I2S）Export respectively to U3（CPU）And U4（Power amplifier）, by I2C（SDA、SCL）Control U4 opens volume；If a is equal to b,
Then currently playing television channel is in mute state, for the currently playing television channel configure that another does not configure it is preset
Sound system, repeats step S12 and step S13, until all of preset sound system configuration is finished.
In the present embodiment by after a preset sound system is configured for currently playing television channel, this currently being broadcast
The audio signal of the TV output put is filtered treatment, and the simulated audio signal after filtering process is converted into DAB
Signal, to enable more accurate and effectively identify currently playing television channel sound system, and it is current to set this automatically
The sound system of the television channel of broadcasting, improves the accuracy that sound system is set, and further improves television channel sound system
The efficiency of setting.
As shown in fig. 6, the schematic flow sheet of the 3rd embodiment for the automatic setting method of sound system of the present invention.
Based on above-mentioned second embodiment, step S1202 is replaced with：
Step S1204, lower half wave pressure contracting is carried out by the simulated audio signal after filtering process, after obtaining the contracting of lower half wave pressure
Upper half wave simulation audio signal, and from the upper half wave simulation audio signal for obtaining, determine the audio signal of predeterminated frequency.
In the present embodiment, after a preset sound system is configured for currently playing television channel, this is currently broadcast
The audio signal of the TV output put is filtered treatment, and the simulated audio signal after filtering process is carried out into lower half wave pressure contracting,
To obtain the upper half wave simulation audio signal after lower half wave pressure contracts, and from the upper half wave simulation audio signal for obtaining, it is determined that in advance
If the audio signal of frequency, each crest value of the audio signal for determining in the first Preset Time is obtained, and calculate first
The average value a of all crest values of secondary acquisition.For example, with reference to Fig. 7, U1 is the tuner chip of Silicon lab productions
si2176；U5 is operational amplifier, U5 and C2, C3, C4, R3, R4, R5 composition high pass low pass frequency selection circuit composition active band logicals of 2K
Wave filter, filters the high frequency low frequency signal not needed, so as not to produce interference, i.e., by filtering process after, by unwanted height
The audio signal of frequency or low frequency is filtered, and obtains needing the audio signal of frequency；The Audio of tuner output（Analog audio
Frequency signal）After C1 is coupled to the high pass low pass filter treatment that U5 is constituted, then by D1（Diode）The contracting of lower half wave pressure
The upper half-wave of audio signal is obtained, from the upper half filtered audio signal for obtaining, the audio signal of predeterminated frequency is determined, by what is determined
Audio signal is exported gives A/D input ports, obtains each crest value of the audio signal for determining in the first Preset Time, and calculate
Go out for the first time obtain all crest values average value a, first time obtain the crest value when from, or, calculating
After the second Preset Time from when stating average value a, the predeterminated frequency of currently playing television channel output is obtained for the second time
Audio signal, each crest value in the first Preset Time, and calculate second acquisition all crest values it is average
Value b, if a is not equal to b, configures the sound system that the preset sound system is the currently playing television channel, turns by U2
The digital audio and video signals exported after changing（I2S）Export respectively to U3（CPU）And U4（Power amplifier）, by I2C（SDA、SCL）Control U4
Open volume；If a is equal to b, currently playing television channel is in mute state, is the currently playing television channel configuration
Another preset sound system not configured, repeats step S12 and step S13, until all of preset sound system is matched somebody with somebody
Put and finish, the A/D input ports can obtain the crest value of the audio signal of the determination, can be according to the audio signal first for obtaining
All crest values in the first Preset Time of audio signal that is secondary and obtaining the determination for the second time, to identify the TV frequently
The sound system in road.
In the present embodiment by after a preset sound system is configured for currently playing television channel, by filtering process
Simulated audio signal afterwards carries out lower half wave pressure contracting, to obtain the upper half wave simulation audio signal after lower half wave pressure contracts, to enable
It is more accurate and effectively identify currently playing television channel sound system, and the currently playing TV is set automatically frequently
The sound system in road, improves the accuracy that sound system is set, and further improves the efficiency that television channel sound system is set.
As shown in figure 8, the schematic flow sheet of the fourth embodiment for the automatic setting method of sound system of the present invention.
Based on above-mentioned first, second, and third embodiment, the present invention also proposes a kind of automatic setting method of sound system,
The difference of the automatic setting method of the sound system in the method and above-described embodiment is often to search a television channel
When, for the television channel for searching sets sound system automatically, the method comprising the steps of：
Step S16, when a television channel is often searched, for the current television channel for searching configures preset companion one by one
Sound standard.
In the present embodiment, TV presets multiple sound systems（For example, D, K, I, B or G etc.）, TV can be with preset
One or more in stating.The carrier frequency of the preset sound system can be with identical or difference, and each television channel is by matching somebody with somebody
The corresponding carrier frequency of preset sound system put, the audio signal of the multiple different frequencies of output, for example, the carrier frequency of D, K standard is identical,
All it is 6.5KHZ, the carrier frequency of B, G standard is 5.5KHZ, if the preset sound system that television channel is currently configured is D, the TV
Channel is by carrier frequency 6.5KHZ, the audio signal of output multiple different frequencies（The audio signal of 2KHZ, 2.5KHZ or 3KHZ etc.）.
When the automatic channel search for receiving user is instructed, TV carries out tuning operation automatically, or, receiving the manual tuning of user
During instruction, according to each tuning instruction for receiving, corresponding television channel is searched, often one is searched automatically in television channel
After television channel, or instructed according to the tuning manual each time of user, be that current search is arrived after searching a television channel
Television channel configure preset sound system one by one, be currently playing television channel configuration one preset sound system or load
Frequency identical multiple sound system.
Step S17, after a preset sound system is configured for the current television channel for searching, obtains deserve for the first time
The audio signal of the predeterminated frequency of preceding television channel output, each crest value in the first Preset Time, and calculate first
The average value a of all crest values of secondary acquisition；
Step S18, first time obtain the crest value when from, or, when the average value a is calculated from second
After Preset Time, the audio signal of the predeterminated frequency of current television channel output is obtained for the second time, in the first Preset Time
Each interior crest value, and calculate the average value b of all crest values of second acquisition；
Whether step S19, analysis a is equal to b, if a is not equal to b, performs following step S20；If a is equal to b, to deserve
The television channel of preceding broadcasting configures the preset sound system that another is not configured, and repeats above-mentioned steps S17 and S18, directly
Finished to all of preset sound system configuration.
Step S20, configures the sound system that the preset sound system is the current television channel.
The corresponding step of step S16, step S17, step S19 and step S20 and above-mentioned first, second, and third embodiment
Implementation procedure it is the same, no longer describe one by one herein.
It is when the television channel for searching configures preset companion one by one in the present embodiment when a television channel is often searched
Sound standard, for the first time and after default second time, obtains the predeterminated frequency of the currently playing television channel output for the second time
Audio signal, each crest value in the first Preset Time, correspondence calculate acquisition all crest values average value a and
B, if a is not equal to b, configures the sound system that the preset sound system is the currently playing television channel.Realize automatic knowledge
Do not go out the sound system of each television channel televised, and be correspondingly arranged the sound system of each television channel, realize electricity
The automation that tv channel sound system is set, improves the efficiency that television channel sound system is set.
As shown in figure 9, the functional block diagram of the first embodiment for the automatic setting device of sound system of the present invention.The dress
Put including processing module 10, magnitude computation module 20 and sound accompaniment setup module 30,
The processing module 10, for after television channel search terminates, selecting the television channel for searching to carry out one by one
Play, and for currently playing television channel configures preset sound system one by one.
In the present embodiment, TV presets multiple sound systems（For example, D, K, I, B or G etc.）, TV can be with preset
One or more in stating.The carrier frequency of the preset sound system can be with identical or difference, and each television channel is by matching somebody with somebody
The corresponding carrier frequency of preset sound system put, the audio signal of the multiple different frequencies of output, for example, the carrier frequency of D, K standard is identical,
All it is 6.5KHZ, the carrier frequency of B, G standard is 5.5KHZ, if the preset sound system that television channel is currently configured is D, the TV
Channel is by carrier frequency 6.5KHZ, the audio signal of output multiple different frequencies（The audio signal of 2KHZ, 2.5KHZ or 3KHZ etc.）.
When the automatic channel search for receiving user is instructed, TV carries out tuning operation automatically, or, receiving the manual tuning of user
During instruction, according to each tuning instruction for receiving, corresponding television channel is searched.After television channel is searched for and terminated automatically,
Or according to each manual tuning instruction of user, after having searched for television channel, if only search a television channel, will
The channel for searching is played out, or, when multiple television channels are searched, select the television channel for searching to enter one by one
Row is played, and for currently playing television channel configures preset sound system one by one.In the television channel that selection is searched
It is that currently playing television channel configures a preset sound system or carrier frequency identical multiple sound accompaniment system when playing out
Formula.In other embodiments of the present invention, in order to be able to enable users to timely watch searched television channel, searching
Television channel for the first time play when, just be the television channel configuration sound system, it is to avoid all television channels search terminate
Afterwards, one by one for each television channel for searching configures sound system, and user is influenceed to watch the television channel for searching.
The magnitude computation module 20, for after a preset sound system is configured for currently playing television channel,
The audio signal of the predeterminated frequency of currently playing television channel output is obtained for the first time, each in the first Preset Time
Crest value, and calculate the average value a of all crest values for obtaining for the first time；And
First time obtain the crest value when from, or, when the average value a is calculated from the second Preset Time
Afterwards, the audio signal of the predeterminated frequency of the currently playing television channel output is obtained for the second time, in the first Preset Time
Each crest value, and calculate the average value b of all crest values of second acquisition；
In the present embodiment, it is identical for currently playing television channel configures one or more carrier frequency in processing module 10
Preset sound system after, the currently playing television channel passes through the carrier frequency of preset sound system for configuring, and output is multiple not
The audio signal of same frequency, obtains the audio signal of the predeterminated frequency of the currently playing television channel output for the first time（From this
The corresponding carrier frequency of preset sound system of currently playing television channel configuration, the audio signal of multiple different frequencies of output
In, determining the audio signal of predeterminated frequency, the audio signal of currently playing television channel output is simulated audio signal）,
Each crest value in first Preset Time, and calculate the average value a of all crest values for obtaining for the first time.The default frequency
Rate is preferably 2KHZ, also can also be any suitable frequency that the users such as 1.5KHZ or 2.5KHZ are set in advance.Described first
Preset Time is preferably 5 milliseconds, between also can also be the time that any suitable users such as 6 milliseconds or 7 milliseconds are set in advance
Every.The cycle of 2KHz simulated audio signals is 0.5 millisecond, and each crest value in each cycle within 0 to 5 millisecond is respectively
A0, a1 ... a9, if just obtained since crest, can get the 11st crest value A10, calculate and obtain for the first time
All crest values obtain average value a.First time obtain the crest value when from, or, when the average value a is calculated from
The second Preset Time after, the audio signal of the predeterminated frequency of currently playing television channel output is obtained for the second time,
Each crest value in first Preset Time, and the average value b of all crest values of second acquisition is calculated, it is described first
From during the secondary acquisition crest value, be when having obtained all crest values in the first Preset Time for the first time from.Described second is pre-
If the time is preferably 500 milliseconds, also can also be that any suitable users such as 400 milliseconds or 600 milliseconds set in advance when
Between be spaced.Calculate all crest values that the average value a of all crest values for obtaining for the first time and second is obtained b it
Afterwards, a and b are analyzed, to determine whether a is equal to b.
The sound accompaniment setup module 30, if being not equal to b for a, it is that this is currently playing to configure the preset sound system
The sound system of television channel；Or, if a is equal to b, processing module is that the currently playing television channel configures another not
The preset sound system of configuration, and a and b are calculated by magnitude computation module, until all of preset sound system is configured
Finish.
In the present embodiment, if a is not equal to b, it is the currently playing television channel to configure the preset sound system
Sound system（After being successfully the sound system configuration successful of the currently playing television channel, no longer for this is currently playing
Television channel is reconfigured at sound system, but after the television channel currently playing for this successfully configures sound system, is playing
During the television channel of the sound system configuration successful, sound accompaniment is directly exported）, play next TV for not configuring sound system frequently
Road, is that currently playing television channel configures preset sound system one by one, and calculates a and b by magnitude computation module 20, with
Identify the sound system of next television channel for not configuring sound system and be configured by sound accompaniment setup module 30, be
Next television channel configuration sound system for not configuring sound system；It is the currently playing television channel if a is equal to b
Another preset sound system not configured is configured, and a and b are calculated by magnitude computation module 20, until all of preset
Sound system configuration is finished.
The principle of the sound system for identifying television channel is：It is high when sound system sets mistake with reference to Fig. 2
Frequency head audio signal is the noise of many frequency domains, and amplitude is almost equal, detection wherein 2KHz signal amplitudes, and each amplitude is almost
It is equal；With reference to Fig. 3, when sound system setting is correct, although it is also many frequency domains that TV programme are dubbed, amplitude is random
Change.Using These characteristics, the audio signal that can be exported by the television channel of the different time sections for judging to obtain is first
Whether the equal sound system to identify each television channel of average value of all crest values in Preset Time, that is, obtaining
The average value phase of all crest values of the audio signal of the television channel output of the different time sections for taking in the first Preset Time
Deng when, the sound system is not the sound system of current television channel；Exported in the television channel of the different time sections for obtaining
When the average value of all crest values of the audio signal in the first Preset Time is unequal, the sound system is current television channel
Sound system.
In the present embodiment, the processing module 10 selects the process that the television channel for searching is played out to be one by one：
According to the 3rd prefixed time interval, the television channel for searching is selected to play out one by one；Or the electricity for searching is selected one by one
Tv channel is played out, and in currently playing television channel configuration successful sound system, selects what another was not played out
Television channel is played out, or, when currently playing television channel is with all of preset sound system configuration failure, selection
Another television channel not played out is played out.3rd prefixed time interval is more than the second Preset Time and two
First Preset Time sum, the 3rd prefixed time interval is preferably 510 milliseconds, to guarantee to have enough time currently to broadcast
The television channel configuration sound system put.
The present embodiment selects the television channel for searching to play out one by one after television channel search terminates, and is to work as
The television channel of preceding broadcasting configures preset sound system one by one, and for the first time and after default second time, second acquisition is deserved
The audio signal of the predeterminated frequency of the television channel output of preceding broadcasting, each crest value in the first Preset Time, to accrued
The average value a and b of all crest values of acquisition are calculated, if a is not equal to b, the preset sound system is configured for this is currently playing
Television channel sound system.Realization automatically identifies the sound system of each television channel televised, and correspondence sets
The sound system of each television channel is put, the automation that television channel sound system is set is realized, television channel sound accompaniment system is improved
The efficiency that formula is set.
As shown in Figure 10, be sound system of the present invention automatic setting device second embodiment functional block diagram.Should
Device also includes modular converter 40,
The processing module 10, for after a preset sound system is configured for currently playing television channel, by this
The audio signal of currently playing TV output is filtered treatment；
The modular converter 40, for the simulated audio signal after filtering process to be converted into digital audio and video signals, from turn
In digital audio and video signals after change, the audio signal of predeterminated frequency is determined；
The magnitude computation module 30, for obtaining each crest of the audio signal for determining in the first Preset Time
Value, and calculate the average value a of all crest values for obtaining for the first time.
In the present embodiment, after a preset sound system is configured for currently playing television channel, with reference to Fig. 5, U1
It is the tuner chip si2176 of Silicon lab productions；U5 is operational amplifier, and U5 is constituted with C2, C3, C4, R3, R4, R5
High pass low pass frequency selection circuit constitutes the active band-pass filter of 2KHZ frequencies, filters unwanted high frequency low frequency signal, in order to avoid produce
Raw interference, i.e., by filtering process after, the audio signal of unwanted high frequency or low frequency is filtered, obtain needing frequency
The audio signal of rate, the Audio of tuner output（Simulated audio signal）The high pass LPF that U5 is constituted is coupled to by C1
After device treatment, the analogue audio frequency input of U2 is coupled to by C5, U2 is 24 moduluses of Texas Instrument's production（A/D）Converter
PCM1808, is changed by A/D and for simulated audio signal to be converted to digital audio and video signals, and digital audio and video signals can be obtained preferably
The crest value of the audio signal, determines the audio signal of predeterminated frequency from the digital audio and video signals after conversion, that is, needed
The audio signal for the treatment of, obtains each crest value of the audio signal for determining in the first Preset Time, and calculate for the first time
Obtain all crest values average value a, first time obtain the crest value when from, or, calculating the average value a
When from the second Preset Time after, the audio letter of the predeterminated frequency of currently playing television channel output is obtained for the second time
Number, each crest value in the first Preset Time, and the average value b of all crest values of second acquisition is calculated, if a is not
Equal to b, then the sound system that the preset sound system is the currently playing television channel is configured, by what is exported after U2 conversions
Digital audio and video signals（I2S）Export respectively to U3（CPU）And U4（Power amplifier）, by I2C（SDA、SCL）Control U4 opens volume；
If a is equal to b, currently playing television channel is in mute state, for the currently playing television channel configures another not
The preset sound system of configuration, calculates a and b, until all of preset sound system is configured by magnitude computation module 20
Finish, until all of preset sound system configuration is finished.
In the present embodiment by after a preset sound system is configured for currently playing television channel, this currently being broadcast
The audio signal of the TV output put is filtered treatment, and the simulated audio signal after filtering process is converted into DAB
Signal, to enable more accurate and effectively identify currently playing television channel sound system, and it is current to set this automatically
The sound system of the television channel of broadcasting, improves the accuracy that sound system is set, and further improves television channel sound system
The efficiency of setting.
Further, the processing module 10, is additionally operable to for the simulated audio signal after filtering process to carry out lower half wave pressure
Contracting, to obtain the upper half wave simulation audio signal after lower half wave pressure contracts, and from the upper half wave simulation audio signal for obtaining, it is determined that
The audio signal of predeterminated frequency.
In the present embodiment, after a preset sound system is configured for currently playing television channel, this is currently broadcast
The audio signal of the TV output put is filtered treatment, and the simulated audio signal after filtering process is carried out into lower half wave pressure contracting,
To obtain the upper half wave simulation audio signal after lower half wave pressure contracts, and from the upper half wave simulation audio signal for obtaining, it is determined that in advance
If the audio signal of frequency, each crest value of the audio signal for determining in the first Preset Time is obtained, and calculate first
The average value a of all crest values of secondary acquisition.For example, with reference to Fig. 7, U1 is the tuner chip of Silicon lab productions
si2176；U5 is operational amplifier, U5 and C2, C3, C4, R3, R4, R5 composition high pass low pass frequency selection circuit composition active band logicals of 2K
Wave filter, filters the high frequency low frequency signal not needed, so as not to produce interference, i.e., by filtering process after, by unwanted height
The audio signal of frequency or low frequency is filtered, and obtains needing the audio signal of frequency；The Audio of tuner output（Analog audio
Frequency signal）After C1 is coupled to the high pass low pass filter treatment that U5 is constituted, then the contracting of lower half wave pressure is obtained audio by D1
The upper half-wave of signal, from the upper half filtered audio signal for obtaining, determines the audio signal of predeterminated frequency, the audio signal that will be determined
Export and give A/D input ports, obtain each crest value of the audio signal for determining in the first Preset Time, and calculate for the first time
Obtain all crest values average value a, first time obtain the crest value when from, or, calculating the average value a
When from the second Preset Time after, the audio letter of the predeterminated frequency of currently playing television channel output is obtained for the second time
Number, each crest value in the first Preset Time, and the average value b of all crest values of second acquisition is calculated, if a is not
Equal to b, then the sound system that the preset sound system is the currently playing television channel is configured, by what is exported after U2 conversions
Digital audio and video signals（I2S）Export respectively to U3（CPU）And U4（Power amplifier）, by I2C（SDA、SCL）Control U4 opens volume；
If a is equal to b, currently playing television channel is in mute state, for the currently playing television channel configures another not
The preset sound system of configuration, calculates a and b, until all of preset sound system is configured by magnitude computation module 20
Finish, the A/D input ports can obtain the crest value of the audio signal of the determination, can according to the audio signal that obtains for the first time and
The all crest values in the first Preset Time of the audio signal of the determination are obtained for the second time, to identify the television channel
Sound system.
In the present embodiment by after a preset sound system is configured for currently playing television channel, by filtering process
Simulated audio signal afterwards carries out lower half wave pressure contracting, to obtain the upper half wave simulation audio signal after lower half wave pressure contracts, to enable
It is more accurate and effectively identify currently playing television channel sound system, and the currently playing TV is set automatically frequently
The sound system in road, improves the accuracy that sound system is set, and further improves the efficiency that television channel sound system is set.
As shown in figure 11, be sound system of the present invention automatic setting device 3rd embodiment functional block diagram.This
Invention also proposes a kind of automatic setting device of sound system, and the device includes processing module 50, magnitude computation module 60, sound accompaniment
Setup module 70 and modular converter 80,
The processing module 50, for when a television channel is often searched, for the current television channel that searches by
The one preset sound system of configuration.
In the present embodiment, TV presets multiple sound systems（For example, D, K, I, B or G etc.）, TV can be with preset
One or more in stating.The carrier frequency of the preset sound system can be with identical or difference, and each television channel is by matching somebody with somebody
The corresponding carrier frequency of preset sound system put, the audio signal of the multiple different frequencies of output, for example, the carrier frequency of D, K standard is identical,
All it is 6.5KHZ, the carrier frequency of B, G standard is 5.5KHZ, if the preset sound system that television channel is currently configured is D, the TV
Channel is by carrier frequency 6.5KHZ, the audio signal of output multiple different frequencies（The audio signal of 2KHZ, 2.5KHZ or 3KHZ etc.）.
When the automatic channel search for receiving user is instructed, TV carries out tuning operation automatically, or, receiving the manual tuning of user
During instruction, according to each tuning instruction for receiving, corresponding television channel is searched, often one is searched automatically in television channel
After television channel, or instructed according to the tuning manual each time of user, be that current search is arrived after searching a television channel
Television channel configure preset sound system one by one, be currently playing television channel configuration one preset sound system or load
Frequency identical multiple sound system.
The magnitude computation module 60, for configuring a preset sound system for the current television channel for searching
Afterwards, the audio signal of the predeterminated frequency of current television channel output, each ripple in the first Preset Time are obtained for the first time
Peak value, and calculate the average value a of all crest values for obtaining for the first time；And
First time obtain the crest value when from, or, when the average value a is calculated from the second Preset Time
Afterwards, the audio signal of the predeterminated frequency of current television channel output, each in the first Preset Time are obtained for the second time
Crest value, and calculate the average value b of all crest values of second acquisition；
The sound accompaniment configuration module 70, if being not equal to b for a, configure the preset sound system for the TV frequently
The sound system in road, or, if a is equal to b, processing module is that the current television channel configures another preset companion not configured
Sound standard, and a and b are calculated by magnitude computation module, until all of preset sound system configuration is finished.
Processing module 50, magnitude computation module 60, sound accompaniment setup module 70 and modular converter 80 and above-mentioned sound system
The automatic corresponding processing module 10 set in the embodiment of device first and second, magnitude computation module 20, sound accompaniment setup module
30 and the embodiment of modular converter 40 first, second, and third implementation procedure it is the same, no longer describe one by one herein.
It is when the television channel for searching configures preset companion one by one in the present embodiment when a television channel is often searched
Sound standard, for the first time and after default second time, obtains the predeterminated frequency of the currently playing television channel output for the second time
Audio signal, each crest value in the first Preset Time, correspondence calculate acquisition all crest values average value a and
B, if a is not equal to b, configures the sound system that the preset sound system is the currently playing television channel.Realize automatic knowledge
Do not go out the sound system of each television channel televised, and be correspondingly arranged the sound system of each television channel, realize electricity
The automation that tv channel sound system is set, improves the efficiency that television channel sound system is set.
The preferred embodiments of the present invention are the foregoing is only, the scope of the claims of the invention, every utilization is not thereby limited
Equivalent structure or equivalent flow conversion that description of the invention and accompanying drawing content are made, or directly or indirectly it is used in other correlations
Technical field, be included within the scope of the present invention.
Claims (10)
1. a kind of automatic setting method of sound system, it is characterised in that the method comprising the steps of：
A, television channel search terminate after, select the television channel for searching to play out one by one, and be currently playing electricity
Tv channel configures preset sound system one by one；
B, after a preset sound system is configured for currently playing television channel, the currently playing TV is obtained for the first time
The audio signal of the predeterminated frequency of channel output, each crest value in the first Preset Time, and calculate acquisition for the first time
All crest values average value a；
C, first time obtained all crest values in the first Preset Time when from, or, when the average value a is calculated from
The second Preset Time after, the audio signal of the predeterminated frequency of currently playing television channel output is obtained for the second time,
Each crest value in first Preset Time, and calculate the average value b of all crest values of second acquisition；
If D, a are not equal to b, the sound system that the preset sound system is the currently playing television channel is configured, or, if
A is equal to b, then for the currently playing television channel configures another preset sound system not configured, and repeat above-mentioned
Step B and C, until all of preset sound system configuration is finished.
2. the automatic setting method of sound system according to claim 1, it is characterised in that the selection one by one is searched
Television channel include the step of play out：
According to the 3rd prefixed time interval, the television channel for searching is selected to play out one by one；Or
The television channel for searching is selected to play out one by one, in currently playing television channel configuration successful sound system,
Another television channel not played out is selected to play out, or, it is preset with all of in currently playing television channel
During sound system configuration failure, another television channel not played out is selected to play out.
3. the automatic setting method of sound system according to claim 1, it is characterised in that the step B includes：
B1, after a preset sound system is configured for currently playing television channel, by currently playing TV output
The audio signal of predeterminated frequency is filtered treatment；
B2, the simulated audio signal after filtering process is converted into digital audio and video signals, from the digital audio and video signals after conversion,
Determine the audio signal of predeterminated frequency；
Each crest value of the audio signal that B3, acquisition determine in the first Preset Time, and calculate the institute for obtaining for the first time
There is the average value a of crest value.
4. the automatic setting method of sound system according to claim 3, it is characterised in that the step B2 is replaced with：
B4, the simulated audio signal after filtering process is carried out lower half wave pressure contracting, to obtain the upper half-wave mould after lower half wave pressure contracts
Intend audio signal, and from the upper half wave simulation audio signal for obtaining, determine the audio signal of predeterminated frequency.
5. a kind of automatic setting method of sound system, it is characterised in that the method comprising the steps of：
E, when a television channel is often searched, for the current television channel for searching configures preset sound system one by one；
F, for the current television channel for searching configure a preset sound system after, the current television channel is obtained for the first time
The audio signal of the predeterminated frequency of output, each crest value in the first Preset Time, and calculate the institute for obtaining for the first time
There is the average value a of crest value；
G, first time obtained all crest values in the first Preset Time when from, or, when the average value a is calculated from
The second Preset Time after, obtain for the second time the current television channel output predeterminated frequency audio signal, it is pre- first
If each crest value in the time, and calculate the average value b of all crest values of second acquisition；
If H, a are not equal to b, the sound system that the preset sound system is the current television channel is configured, or, if a is equal to
B, then for the current television channel configures another preset sound system not configured, and repeat above-mentioned steps F and G, directly
Finished to all of preset sound system configuration.
6. the automatic setting device of a kind of sound system, it is characterised in that the device includes：
Processing module, for after television channel search terminates, selecting the television channel for searching to play out one by one, and is to work as
The television channel of preceding broadcasting configures preset sound system one by one；
Magnitude computation module, for after a preset sound system is configured for currently playing television channel, obtaining for the first time
The audio signal of the predeterminated frequency of the currently playing television channel output, each crest value in the first Preset Time, and
Calculate the average value a of all crest values for obtaining for the first time；And
First time obtained all crest values in the first Preset Time when from, or, when the average value a is calculated from
After second Preset Time, the audio signal of the predeterminated frequency of currently playing television channel output is obtained for the second time, the
Each crest value in one Preset Time, and calculate the average value b of all crest values of second acquisition；
Sound accompaniment setup module, if being not equal to b for a, it is the currently playing television channel to configure the preset sound system
Sound system；Or, if a is equal to b, processing module be the currently playing television channel configure that another does not configure it is preset
Sound system, and a and b are calculated by magnitude computation module, until all of preset sound system configuration is finished.
7. the automatic setting device of sound system according to claim 6, it is characterised in that
The processing module, for according to the 3rd prefixed time interval, selecting the television channel for searching to play out one by one；Or
Person
The television channel for searching is selected to play out one by one, in currently playing television channel configuration successful sound system,
Another television channel not played out is selected to play out, or, it is preset with all of in currently playing television channel
During sound system configuration failure, another television channel not played out is selected to play out.
8. the automatic setting device of sound system according to claim 6, it is characterised in that the device also includes modulus of conversion
Block,
The processing module, for after a preset sound system is configured for currently playing television channel, this currently being broadcast
The audio signal of the predeterminated frequency of the TV output put is filtered treatment；
The modular converter, for the simulated audio signal after filtering process to be converted into digital audio and video signals, from after conversion
In digital audio and video signals, the audio signal of predeterminated frequency is determined；
The magnitude computation module, for obtaining each crest value of the audio signal for determining in the first Preset Time, and counts
Calculate the average value a of all crest values for obtaining for the first time.
9. the automatic setting device of sound system according to claim 8, it is characterised in that
The processing module, is additionally operable to for the simulated audio signal after filtering process to carry out lower half wave pressure contracting, to obtain lower half-wave
Upper half wave simulation audio signal after compression, and from the upper half wave simulation audio signal for obtaining, determine the audio of predeterminated frequency
Signal.
10. the automatic setting device of a kind of sound system, it is characterised in that the device includes：
Processing module, for when a television channel is often searched, for the current television channel for searching configures preset one by one
Sound system；
Magnitude computation module, for after a preset sound system is configured for the current television channel for searching, obtaining for the first time
The audio signal of the predeterminated frequency of current television channel output, each crest value in the first Preset Time are taken, and is calculated
Go out the average value a of all crest values for obtaining for the first time；And
First time obtained all crest values in the first Preset Time when from, or, when the average value a is calculated from
After second Preset Time, the audio signal of the predeterminated frequency of current television channel output is obtained for the second time, it is default first
Each crest value in time, and calculate the average value b of all crest values of second acquisition；
Sound accompaniment configuration module, if being not equal to b for a, configures the sound accompaniment system that the preset sound system is the current television channel
Formula, or, if a is equal to b, processing module is that the current television channel configures another preset sound system not configured, and
A and b are calculated by magnitude computation module, until all of preset sound system configuration is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310687552.XA CN103686424B (en) | 2013-12-13 | 2013-12-13 | The automatic setting method and device of sound system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310687552.XA CN103686424B (en) | 2013-12-13 | 2013-12-13 | The automatic setting method and device of sound system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103686424A CN103686424A (en) | 2014-03-26 |
| CN103686424B true CN103686424B (en) | 2017-06-13 |
Family
ID=50322484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310687552.XA Expired - Fee Related CN103686424B (en) | 2013-12-13 | 2013-12-13 | The automatic setting method and device of sound system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103686424B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101179684A (en) * | 2006-11-06 | 2008-05-14 | 青岛海信电器股份有限公司 | Channel searching method capable of identifying automatically color standard and voice standard |
| CN101873407A (en) * | 2009-04-24 | 2010-10-27 | 沈阳同方多媒体科技有限公司 | Method for presetting television factory channel |
| CN102123261A (en) * | 2010-01-11 | 2011-07-13 | 康佳集团股份有限公司 | Television as well as channel search method and system thereof |
| CN102244753A (en) * | 2011-06-30 | 2011-11-16 | 广州视源电子科技有限公司 | Television-based hybrid television program operation realization method and television |
| CN102244752A (en) * | 2011-06-30 | 2011-11-16 | 广州视源电子科技有限公司 | Method for automatically updating and upgrading television channel database and television |
| CN103561342A (en) * | 2013-10-30 | 2014-02-05 | 乐视致新电子科技（天津）有限公司 | Method and device for tabletop switch of smart television and smart television |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3589178B2 (en) * | 2000-11-29 | 2004-11-17 | 船井電機株式会社 | Digital / analog television signal receiver |
-
2013
- 2013-12-13 CN CN201310687552.XA patent/CN103686424B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101179684A (en) * | 2006-11-06 | 2008-05-14 | 青岛海信电器股份有限公司 | Channel searching method capable of identifying automatically color standard and voice standard |
| CN101873407A (en) * | 2009-04-24 | 2010-10-27 | 沈阳同方多媒体科技有限公司 | Method for presetting television factory channel |
| CN102123261A (en) * | 2010-01-11 | 2011-07-13 | 康佳集团股份有限公司 | Television as well as channel search method and system thereof |
| CN102244753A (en) * | 2011-06-30 | 2011-11-16 | 广州视源电子科技有限公司 | Television-based hybrid television program operation realization method and television |
| CN102244752A (en) * | 2011-06-30 | 2011-11-16 | 广州视源电子科技有限公司 | Method for automatically updating and upgrading television channel database and television |
| CN103561342A (en) * | 2013-10-30 | 2014-02-05 | 乐视致新电子科技（天津）有限公司 | Method and device for tabletop switch of smart television and smart television |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103686424A (en) | 2014-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100421152C (en) | Sound control system and method | |
| CN103517094B (en) | Server and the method for controlling the server | |
| CN104916288B (en) | The method and device of the prominent processing of voice in a kind of audio | |
| CN1241420C (en) | Method and apparatus for monitoring TV channel selecting status | |
| CN103686424B (en) | The automatic setting method and device of sound system | |
| CN102404522A (en) | Speech remote control method for television and television | |
| TW200520554A (en) | Television tuner and method of processing received RF signal | |
| CN105682188A (en) | WiFi network access method and device and WiFi access device | |
| CN107682588A (en) | Switching system, method and the signal measurement instrument of analog audio-video signal input and output | |
| CN106303799A (en) | Four enter eight goes out FIR sound box processor and control method thereof | |
| CN211063776U (en) | KS-2 multifunctional K song sound system | |
| CN205160676U (en) | Adaptation mobile terminal's integrative equipment of audio frequency and video | |
| CN206339587U (en) | A kind of signal waveform display device | |
| CN206024079U (en) | Four enter eight goes out FIR sound box processors | |
| CN105704530B (en) | A kind of station channel search method to set up and device | |
| CN206833915U (en) | A kind of remote control, FM Receiver and K song systems | |
| CN206024078U (en) | Four enter four goes out FIR sound box processors | |
| CN1244085A (en) | Device and method for reproducing accoustic signals by voice generator of image displaying apparatus | |
| CN206061099U (en) | Two enter six goes out FIR sound box processors | |
| CN105227151A (en) | Speech playing method and system | |
| CN101512912A (en) | Radio broadcasting receiver and method for seeking radio broadcasting | |
| JP2585041B2 (en) | Television broadcast identity discrimination method | |
| RU29817U1 (en) | MULTIPLE RADIO RECEIVER | |
| JP2001053590A (en) | Frequency tuning device and frequency tuning method | |
| CN102893530B (en) | Signal receiving apparatus and related signal receiving method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170613 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |