CN109246545A - A kind of double screen audio-frequency inputting method - Google Patents
A kind of double screen audio-frequency inputting method Download PDFInfo
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- CN109246545A CN109246545A CN201811022273.0A CN201811022273A CN109246545A CN 109246545 A CN109246545 A CN 109246545A CN 201811022273 A CN201811022273 A CN 201811022273A CN 109246545 A CN109246545 A CN 109246545A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
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- Acoustics & Sound (AREA)
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- Circuit For Audible Band Transducer (AREA)
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Abstract
The present invention provides a kind of double screen audio-frequency inputting method, comprising: 1, two display plays an audio signal respectively, measures the delay inequality of audio signal, and adjustment delay keeps two audio signal delays equal；2, central processing unit connects display, judges whether display supports audio output according to the configuration information of display, to obtain supporting the display number of audio output；3, central processing unit obtains the placement position of display；4, central processing unit obtains the current video output mode of two displays；5, central processing unit determines audio output mode according to the display number of the support audio output of connection, the placement position of display and video output mode；6, it after central processing unit adjusts the content of audio stream and the buffering of audio stream according to audio output mode, is exported from corresponding display interface device.The present invention can not only solve interference of sound and output latency issue, but also can enhance audio output and promotion user experience in the case of double screen output.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of double screen audio-frequency inputting methods.
Background technique
Existing major part multi-screen audio-frequency inputting method is the selection based on default strategy or user, specifies a display
The loudspeaker of device are as audio output object.This method can evade multi-screen and meanwhile export the destruction interference of sound with it is difference aobvious
Show device audio output delay different problems, the destruction interference of sound will lead to segment space frequency response fluctuation greatly, output delay
Difference then will lead to the nonsynchronous problem of sound.The problems such as although this multi-screen audio output system has evaded interference, but because
To have only used the loudspeaker of one piece of screen as audio output, so sound may be less than normal in the bigger environment in space, separately
Outside, image audio corresponding with it is not exported in the same display screen under the different aobvious usage scenario of multi-screen, sound source and image position
The difference set will obviously allow people not feel good.
In addition, some multi-screen audio-frequency inputting method is to shield the audio output of display, it is changed to using independence
External speaker, enough volumes can either be obtained, and can be by neatly putting the luv space of external speaker also original sound
Characteristic.This multi-screen audio output system needs virtually to improve cost by independent external speaker.
Above two multi-screen audio-frequency inputting method output there are aiming at the problem that, it is defeated that the present invention devises a kind of double screen audio
Method out.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of double screen audio-frequency inputting method, can both solve interference of sound
With output latency issue, and audio output in the case of double screen output can be remarkably reinforced and promote that multi-screen is different aobvious or multi-screen is the same as aobvious
User experience.
Problem of the invention is achieved in that
A kind of double screen audio-frequency inputting method, includes the following steps:
Step 1, central processing unit allow two displays to play the audio signal of one section of setting respectively, pass through central processing unit
The microphone of connection measures the delay inequalities of two audio signals, and the be delayed audio signal of display of a smaller side of adjustment plays
Buffering, the play time that two audio signals for playing two display interface devices are broadcasted from the loudspeaker of display are equal；
Step 2, central processing unit connect two displays by its interface, and obtain the configuration information of two displays,
Judge whether connected display supports audio output according to configuration information, so that the support audio output connected is aobvious
Show device number；
The position of two step 3, user's self-setting displays, and the location information of two displays is inputed into center
Processor, central processing unit obtain the placement position of two displays, the standard pendulum that two displays are supported according to location information
The mode of putting has horizontal Tile to put and vertical lay out in parallel；
Step 4, central processing unit obtain the current video output mode of two displays；
Step 5, central processing unit according to the display number of the support audio output of connection, the placement position of display and
Video output mode determines the audio output modes of two displays；
Step 6, central processing unit adjust the content and audio stream of audio stream according to the audio output mode of each display
After buffering, audio stream adjusted is exported from corresponding display interface device.
Further, the step 5 specifically:
When the display number of support audio output is 2, the view that display horizontal Tile is put and two displays are current
When frequency output mode is that different screen is same aobvious, then the audio output mode for determining two displays is the different screen mode of left and right acoustic channels, it is left
Side display exports L channel, and the right display exports right channel, and the broadcast time-delay difference of two displays is the same；
When the view that the display number of support audio output is 2, the vertical lay out in parallel of display and two displays are current
When frequency output mode is that different screen is same aobvious, at random or by one display output audio of the specified selection of user；
When supporting the display number of audio output to be that 2, display horizontal Tile is put or vertical lay out in parallel and two
When the current video output mode of display is that different screen is different aobvious, then the audio output mode for determining two displays is left and right sound
Road exports the respectively corresponding audio of display content with mode, two displays are shielded respectively；
When support audio output display number be 2 and two displays disposing way be not belonging to support standard pendulum
When putting mode, audio is exported at random or by specified one display of selection of user；
When supporting the display number of audio output to be 1, then no matter how two displays are put, also no matter two
The current video output mode of display is that different screen is different aobvious with aobvious or different screen, and all the display by a side of support audio output is defeated
Audio out；
When supporting the display number of audio output to be 0, when, then no matter how two displays are put, also no matter two
The current video output mode of a display is that different screen is different aobvious with aobvious or different screen, does not export audio.
The present invention has the advantages that the present invention is based on display number, the display placement position for supporting audio output
And video output mode, judge audio output mode；When video output mode is that different screen is same aobvious, display horizontal Tile is put,
So left side display exports L channel, and the right display exports right channel；When video output mode is that different screen is different aobvious, each
Display exports the sound of correspondence image, for example a display is doing ppt displaying, then the display plays ppt audio simultaneously,
Another display is in video calling, then the display then plays far-end speech.The present invention can both solve interference of sound and defeated
Latency issue out, and audio output and the same aobvious user of the different aobvious or multi-screen of promotion multi-screen in the case of double screen output can be remarkably reinforced
Experience.
Detailed description of the invention
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is a kind of execution flow chart of double screen audio-frequency inputting method of the present invention.
Specific embodiment
To be clearer and more comprehensible the present invention, now with a preferred embodiment, and attached drawing is cooperated to be described in detail below.
A kind of each video output interface of double screen audio-frequency inputting method of the invention supports audio output simultaneously, passes through
Software approach adjusts different screen with the aobvious or different different aobvious audio output of screen.
As shown in Figure 1, a kind of double screen audio-frequency inputting method of the invention, includes the following steps:
Step 1, central processing unit allow two displays to play one section of audio signal set respectively, this section audio signal is
What is be set in advance is used to test broadcast state；Prolonging for two audio signals is measured by the microphone of central processing unit connection
The time difference, the audio signal play buffering of the display of the smaller side of adjustment delay, two sounds for playing two display interface devices
The play time that frequency signal is broadcasted from the loudspeaker of display is equal, first carries out before being played to the delay situation of two displays
Sound and image are consistent when playing when adjustment is to reach playing audio-video；
Step 2, central processing unit connect two displays by its interface, and obtain the configuration information of two displays,
Judge whether connected display supports audio output according to configuration information, so that the support audio output connected is aobvious
Show device number, display number is 0,1 or 2 here；
The position of two step 3, user's self-setting displays, and the location information of two displays is inputed into center
Processor, central processing unit obtain the placement position of two displays, the standard pendulum that two displays are supported according to location information
The mode of putting has horizontal Tile to put and vertical lay out in parallel；
Step 4, central processing unit obtain the current video output mode of two displays；
Step 5, central processing unit according to the display number of the support audio output of connection, the placement position of display and
Video output mode determines the audio output modes of two displays；Specifically:
When the display number of support audio output is 2, the view that display horizontal Tile is put and two displays are current
When frequency output mode is that different screen is same aobvious, then the audio output mode for determining two displays is the different screen mode of left and right acoustic channels, it is left
Side display exports L channel, and the right display exports right channel, and the broadcast time-delay difference of two displays is the same；
When the view that the display number of support audio output is 2, the vertical lay out in parallel of display and two displays are current
When frequency output mode is that different screen is same aobvious, at random or by one display output audio of the specified selection of user；
When supporting the display number of audio output to be that 2, display horizontal Tile is put or vertical lay out in parallel and two
When the current video output mode of display is that different screen is different aobvious, then the audio output mode for determining two displays is left and right sound
Road exports the respectively corresponding audio of display content with mode, two displays are shielded respectively；
When support audio output display number be 2 and two displays disposing way be not belonging to support standard pendulum
When putting mode, audio is exported at random or by specified one display of selection of user；
When supporting the display number of audio output to be 1, then no matter how two displays are put, also no matter two
The current video output mode of display is that different screen is different aobvious with aobvious or different screen, and all the display by a side of support audio output is defeated
Audio out；
When supporting the display number of audio output to be 0, when, then no matter how two displays are put, also no matter two
The current video output mode of a display is that different screen is different aobvious with aobvious or different screen, does not export audio；
Step 6, central processing unit adjust the content and audio stream of audio stream according to the audio output mode of each display
After buffering, audio stream adjusted is exported from corresponding display interface device.
Embodiment 1:
The embodiment is to belong to support that the display number of audio output is 2, the vertical lay out in parallel of display and two aobvious
Show that the current video output mode of device is the different aobvious situation of different screen.
Video conference terminal generally all supports double screen output, and a screen shows secondary flow, such as ppt, video clip etc., in addition one
Shield real-time display video conference image.Common way is a side of the specified display first accessed as audio output.
By the present invention, system can hold secondary flow audio and conversation voice frequency division, export respectively from different displays, this
In the case of, participant would not appear in when see secondary flow, and sight has gone to the display where secondary flow, and sound source
Or the case where coming from another display.
Embodiment 2:
The embodiment is to belong to support that the display number of audio output is that 2, display horizontal Tile is put and two aobvious
Show that the current video output mode of device is different screen with aobvious situation.
Video conference terminal generally all supports double screen output, can be using the method for double screen splicing, by superelevation under certain scenes
It is shown on the image stretch of resolution ratio to the display of two low resolution.Their audio output is generally from specified one at this time
A display output, or external speaker is output to from the onboard delivery outlet of audio of conference terminal.
By the present invention, system allows two displays to export the audios of left and right acoustic channels respectively in this case can be obvious
Improve output volume, the also spatial information of original sound.
Advantages of the present invention is as follows:
The present invention is sentenced based on display number, display placement position and the video output mode for supporting audio output
Disconnected audio output mode；When video output mode is that different screen is same aobvious, display horizontal Tile is put, then left side display exports
L channel, and the right display exports right channel；When video output mode is that different screen is different aobvious, each display exports correspondence image
Sound, for example a display doing ppt displaying, then the display plays ppt audio simultaneously, another display is regarding
Frequency is conversed, then the display then plays far-end speech.
The present invention is 2, the vertical lay out in parallel of display and two displays 1. supporting the display number of audio output
It is 2 that current video output mode, which is different screen with display number that is aobvious, 2. supporting audio output, and two displays are put
In the case that mode is not belonging to the standard disposing way supported, the display number of audio output is 3. supported to be 1, one is specified to show
Show that the loudspeaker of device as audio output object, solve interference of sound and output latency issue (first adjusts two displays before playing
Audio signal delay), 4. support audio output display number be 2, display horizontal Tile put and two display
The current video output mode of device is that the same display number that is aobvious, 5. supporting audio output of different screen is that 2, display horizontal Tile is put
Put or vertical lay out in parallel and two current video output modes of display be different screen it is different it is aobvious in the case where, by two displays
(double screen) exports corresponding audio, and it is same that audio output and the different aobvious or multi-screen of promotion multi-screen in the case of double screen exports can be remarkably reinforced
Aobvious user experience.
Although specific embodiments of the present invention have been described above, those familiar with the art should be managed
Solution, we are merely exemplary described specific embodiment, rather than for the restriction to the scope of the present invention, it is familiar with this
The technical staff in field should be covered of the invention according to modification and variation equivalent made by spirit of the invention
In scope of the claimed protection.
Claims (2)
1. a kind of double screen audio-frequency inputting method, characterized by the following steps:
Step 1, central processing unit allow two displays to play the audio signal of one section of setting respectively, are connected by central processing unit
Microphone measure the delay inequalities of two audio signals, adjustment be delayed a smaller side display audio signal play it is slow
Punching, the play time that two audio signals for playing two display interface devices are broadcasted from the loudspeaker of display are equal；
Step 2, central processing unit connect two displays by its interface, and obtain the configuration information of two displays, according to
Configuration information judges whether connected display supports audio output, thus the display of the support audio output connected
Number；
The position of two step 3, user's self-setting displays, and the location information of two displays is inputed into central processing
Device, central processing unit obtain the placement position of two displays, the standard side of putting that two displays are supported according to location information
Formula has horizontal Tile to put and vertical lay out in parallel；
Step 4, central processing unit obtain the current video output mode of two displays；
Step 5, central processing unit are according to the display number of the support audio output of connection, the placement position of display and video
Output mode determines the audio output modes of two displays；
Step 6, central processing unit adjust the content of audio stream and the buffering of audio stream according to the audio output mode of each display
Afterwards, audio stream adjusted is exported from corresponding display interface device.
2. a kind of double screen audio-frequency inputting method as described in claim 1, it is characterised in that: the step 5 specifically:
When the display number of support audio output is 2, display horizontal Tile is put and two current videos of display are defeated
When mode is that different screen is same aobvious out, then determining that the audio output mode of two displays is the different screen mode of left and right acoustic channels, the left side is aobvious
Show that device exports L channel, the right display exports right channel, and the broadcast time-delay difference of two displays is the same；
When the display number of support audio output is 2, the vertical lay out in parallel of display and two current videos of display are defeated
When mode is that different screen is same aobvious out, at random or by one display output audio of the specified selection of user；
When the display number of support audio output is 2, display horizontal Tile is put or lay out in parallel and two displays vertically
When the current video output mode of device is that different screen is different aobvious, then determining that the audio output mode of two displays is same for left and right acoustic channels
Screen mode, two displays export the respectively corresponding audio of display content respectively；
When support audio output display number be 2 and two displays disposing way be not belonging to support the standard side of putting
When formula, audio is exported at random or by specified one display of selection of user；
When supporting the display number of audio output to be 1, then no matter how two displays are put, also no matter two displays
The current video output mode of device is that different screen is different aobvious with aobvious or different screen, all exports sound by the display of a side of support audio output
Frequently；
When supporting the display number of audio output to be 0, when, then no matter how two displays are put, also no matter two it is aobvious
Show that the current video output mode of device is that different screen is different aobvious with aobvious or different screen, does not export audio.
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| CN201811022273.0A CN109246545B (en) | 2018-09-04 | 2018-09-04 | Double-screen audio output method |
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| CN114501126A (en) * | 2021-12-25 | 2022-05-13 | 深圳市广和通无线股份有限公司 | Video playing method, system and storage medium |
| WO2022134169A1 (en) * | 2020-12-21 | 2022-06-30 | 安徽鸿程光电有限公司 | Multi-display-screen system and audio control method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022134169A1 (en) * | 2020-12-21 | 2022-06-30 | 安徽鸿程光电有限公司 | Multi-display-screen system and audio control method thereof |
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