CN106817657B - System, audio signal output device and its method of adjust automatically voice directions - Google Patents
System, audio signal output device and its method of adjust automatically voice directions Download PDFInfo
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Abstract
A kind of system, audio signal output device and its method of adjust automatically voice directions.System has audio signal output device and audio signal reception device.Audio signal output device has to upper speaker.In test program, audio signal output device, which is controlled, to be respectively facing multiple test elevations angle to upper speaker and exports to test audio signal.Audio signal reception device is located at radio reception region, connects test audio signal, and the radio reception waveform to generate radio reception information is generated according to the test audio signal received.Audio signal output device selects a test elevation angle as the default elevation angle according to radio reception information.In playing program, audio signal output device is controlled by mode select signal, corresponds to from mode and the adjustment of amendment numerical value is selected to preset the elevation angle in table, and controls to upper speaker towards default elevation angle output audio signal adjusted.
Description
Technical field
The present invention relates to system, audio signal output device and its methods of a kind of adjust automatically voice directions, especially relate to
And a kind of system to simulate panorama audio, audio signal output device and its method.
Background technique
Tradition includes 5.1 sound channels, 7.1 sound channels, 9.1 sound channels etc. to the audio signal output device for generating around audio
Configuration, the configuration of these sound channels can allow audio signal to generate good two-dimentional audio in space, but can not simulate true object
The panorama audio that body moves in three dimensions.At present in the cinema of part, in order to promote audience for film plot
Telepresenc, in the movie theater of cinema other than the circular sound channel used in the past, more in increasing sound channel on the ceiling of movie theater
Array, with the sound effects content of more perfect reproduction film.
And general domestic space, no image of Buddha movie theater is the same to increase sound channel array on the ceiling, but by upward hair
The audio signal output device of sound projects audio signal to ceiling, via ceiling reflection audio signal to audience, allows sight
Reward person experiences three-dimensional auditory effect.However, the environmental condition due to each Family construction audio-visual space is different, such as audiovisual
The size in space, the height of audio-visual space ceiling or material of ceiling etc., the audio signal output peddled on the market at present
Device can not be directed to the environmental condition of different home and adjust, therefore audio signal output device is caused not present in the family
The 3-D audio of desired effects, that is, when the environmental condition of family does not meet the environment estimated when audio signal output device design
When condition, the condition of home environment reduces the panorama audio of audio signal output device.
Summary of the invention
The purpose of the present invention is to provide system, audio signal output device and its sides of a kind of adjust automatically voice directions
Method, using the audio signal output device solved at present on the market can not be adjusted according to the environmental condition of each audio-visual space
The problem of.
Disclosed herein adjust automatically voice directions system, have audio signal output device and audio signal reception device.
Audio signal output device at least have one to upper speaker.In test program, audio signal output device control is upward
Loudspeaker is respectively facing multiple test elevations angle and exports to test audio signal, and according to radio reception information, selects a test elevation angle
As the default elevation angle.In playing program, audio signal output device is controlled by mode select signal, corresponds in table and selects from mode
It selects one of multiple amendment numerical value and adjusts the default elevation angle, sound is exported towards the default elevation angle adjusted to upper speaker with control
Frequency signal.Mode corresponds to the amendment numerical value that table defines each audio signal output mode, and mode select signal specifies a sound
Frequency signal output mode.Audio signal reception device is located at radio reception region and receives test audio signal in test program, and foundation receives
Test audio signal generate radio reception waveform.Radio reception waveform is to generate radio reception information.
Disclosed herein adjust automatically voice directions audio signal output device, have to upper speaker, rotation
Part, controller and data storage device.To upper speaker to output audio signal.Rotating member to carry to upper speaker, and
It is controlled by control signal, to adjust the voice directions to upper speaker.Controller is electrically connected rotating member, to generate control letter
Number voice directions to upper speaker are adjusted to control rotating member.In test program, it is upward that controller controls rotating member adjustment
Loudspeaker is respectively facing multiple test elevation angle output test audio signals, and according to radio reception information, a test elevation angle is selected to do
To preset the elevation angle.Radio reception information association is in radio reception region to the reception situation of test audio signal.The controller in playing program
It according to mode select signal, is corresponded to from mode and an amendment numerical value is selected to adjust the default elevation angle in table, and control rotating member adjustment
To upper speaker towards default elevation angle output audio signal adjusted.The specified audio signal of mode select signal exports mould
Formula.Data storage device corresponds to table to storage mode, and mode corresponds to the amendment number that table defines each audio signal output mode
Value.
Disclosed herein adjust automatically voice directions method, be included in test program, with to upper speaker point
Test audio signal is not exported towards multiple test elevations angle.In test program, radio reception region is located at audio signal reception device and receives survey
Audio signal is tried, and generates radio reception waveform according to the test audio signal received.Radio reception information is generated according to radio reception waveform.According to
According to radio reception information, select a test elevation angle as the default elevation angle.In playing program, according to mode select signal, from mode
One amendment numerical value of selection adjusts the default elevation angle in corresponding table.Mode corresponds to table and defines repairing for each audio signal output mode
Positive, and mode select signal specifies an audio signal output mode.In playing program, adjusted to upper speaker direction
Default elevation angle output audio signal afterwards.
According to above-mentioned, disclosed herein adjust automatically voice directions system, audio signal output device and its side
Method exports test audio signal using to upper speaker towards different test angles, audio signal reception device is made to be located at the position of listener
It sets, generates radio reception waveform according to the test audio signal received, and be supplied to audio signal output device and judge to allow accordingly
User position can have the default elevation angle of preferable auditory perception, and varying environment condition is avoided to reduce audio signal output device
The problem of panorama audio.
Below in conjunction with the drawings and specific embodiments, the present invention will be described in detail, but not as a limitation of the invention.
Detailed description of the invention
Fig. 1 is the system configuration of the adjust automatically voice directions according to depicted in one embodiment of the invention in audio-visual space
Schematic diagram；
Fig. 2 is the waveform of the test audio signal according to depicted in one embodiment of the invention and the schematic diagram of radio reception waveform；
Fig. 3 is the signal of the waveform and radio reception waveform of the test audio signal according to depicted in another embodiment of the present invention
Figure；
Fig. 4 is the functional-block diagram of the audio signal output device according to depicted in yet another embodiment of the invention；
Fig. 5 is the flow chart of the method for the adjust automatically voice directions of another embodiment according to the present invention.
Wherein, appended drawing reference
10 systems
12,30 audio signal output device
121,31 to upper speaker
122 horizontal loudspeakers
14 audio signal reception devices
20 audio-visual spaces
22 ceilings
24 radio reception regions
W1, W2, W3 waveform
The first time section T1, T3
The second time interval of T2, T4
R1 the first radio reception waveform
R2 the second radio reception waveform
A, B tests the elevation angle
V1, V2 waveform characteristics difference
D1, d2 time difference
33 rotating members
35 controllers
37 data storage devices
Specific embodiment
Describe detailed features and advantage of the invention in detail in embodiments below, content is enough to make any to be familiar with
Relevant art understands technology contents of the invention and implements accordingly, and according to content disclosed by this specification, claim
Range and attached drawing, it is any to be familiar with relevant art and be readily understood upon the relevant purpose of the present invention and advantage.Embodiment below
The viewpoint that present invention be described in more detail, but it is non-anyways to limit scope of the invention.
Fig. 1 to Fig. 3 is please referred to, Fig. 1 is the system of the adjust automatically voice directions according to depicted in one embodiment of the invention
The schematic diagram being configured in audio-visual space, Fig. 2 be the test audio signal according to depicted in one embodiment of the invention waveform and
The schematic diagram of radio reception waveform, Fig. 3 are the waveform and radio reception wave of the test audio signal according to depicted in another embodiment of the present invention
The schematic diagram of shape.As shown in Figure 1, the system 10 of adjust automatically voice directions has audio signal output device 12 and audio signal reception device
14.Audio signal output device 12 and audio signal reception device 14 are configured in audio-visual space 20, such as parlor or other conjunctions in family
In suitable space.Audio signal output device 12 has to upper speaker 121, to towards the ceiling 22 in audio-visual space 20
Output audio signal.In one embodiment, audio signal output device 12 has more horizontal loudspeaker 122, regards to direction
The horizontal plane output audio signal in space is listened, but not limited to this.In addition, audio signal output device 12 can be used to export number
Or analog audio signal.
Audio signal reception device 14 is, for example, remote controler, smartphone or other devices with function of radio receiver.Work as audio signal
When output device 12 is newly configured at audio-visual space 20, audio signal output device 12 is adjusted by executing test program to raising up
The voice directions appropriate of sound device 121.In test program, audio signal reception device 14 is placed on radio reception region 24 as shown in Figure 1, receives
The position of sofa in the position, parlor of for example, listener of sound region 24, and in one embodiment, what audio signal reception device 14 was placed
Height can be equal to listener when sitting posture, and the position of ear height, but not limited to this.In practice, audio signal reception device 14 is to have
Line wirelessly connects audio signal output device 12.
In one embodiment, audio signal output device 12 can be controlled by audio signal reception device 14 to execute test program,
Such as with audio signal reception device 14 for for smartphone, smartphone can be executed to control audio signal output device 12
Application program, and from application program control audio signal output device 12 execute test pattern.In other embodiments, sound
Frequency signal output apparatus 12 can also be controlled by a triggering key or other audio signal sources of audio signal output device 12
Device, test program is executed such as television set, enlarger or other suitable devices, and the present embodiment not limits.
In test pattern, audio signal output device 12 controls to upper speaker 121 and is respectively facing multiple test elevations angle
Export test audio signal.Testing the elevation angle is, for example, the angle to upper speaker 121 axis direction and horizontal plane.Shown in Fig. 1
For, test audio signal is exported towards test elevation angle A or test elevation angle B to upper speaker 121, makes to be located at radio reception region 24
In audio signal reception device 14 receive test audio signal according to position to generate radio reception waveform.
For example, as shown in Fig. 2, to upper speaker 121 in first time section T1, towards test elevation angle A output
One section of test audio signal, such as waveform W1.Audio signal reception device 14 is in first time section T1 according in the audio signal received
Hold and generates the first radio reception waveform R1.To upper speaker 121 in the second time interval T2, another section is exported towards test elevation angle B
Test audio signal, such as waveform W2.Audio signal reception device 14 is generated in the second time interval T2 according to the audio signal content received
Second radio reception waveform R2.To upper speaker 121 in the first time section T1 test audio signal exported and the second time interval
The test audio signal of T2 output is not limited to identical or different.
In another embodiment, as shown in figure 3, continuously changing the test elevation angle to upper speaker 121 and exporting test tone
Frequency signal makes the tool of audio signal reception device 14 generate radio reception waveform R3 such as waveform W3.Such as in first time section T3, upward loudspeaking
Device 121 retains towards test elevation angle A output test audio signal, then adjusts to the test elevation angle of upper speaker 121 and extremely tests
Elevation angle B, and in the second time interval T4, test elevation angle B output test audio signal is retained towards to upper speaker 121.It receives
Mixer 14 in the radio reception waveform R3 that radio reception region 24 generates also can in first time section T3 and the second time interval T4, with
To the test elevation angle of upper speaker 121 change and be varied.
Then, in one embodiment, audio signal reception device 14 exports the radio reception waveform of generation to audio signal output device
12, by audio signal output device 12 according to radio reception waveform, judge radio reception information.Radio reception information is, for example, each time interval
In, intensity of sound performance and propagation time delay performance between the waveform and radio reception waveform of test audio signal.Shown in Fig. 2
Embodiment for, 12 ratio of audio signal output device is in first time section T1, the waveform W1 of test audio signal is strong
The waveform characteristics of degree and the first radio reception waveform R1, judge that the waveform of the waveform W1 and the first radio reception waveform R1 of test audio signal are strong
Spend difference V1.Also, 12 ratio of audio signal output device is in the second time interval T2, the waveform W2 of test audio signal is strong
The waveform characteristics of degree and the second radio reception waveform R2, judge that the waveform of the waveform W2 and the second radio reception waveform R2 of test audio signal are strong
Spend difference V2.It is showed with waveform characteristics difference V1 and waveform characteristics difference V2 as the intensity of sound of radio reception waveform.
Furthermore audio signal output device 12 is also dependent on the comparison in first time section T1, the first radio reception wave is judged
The time difference d1 of waveform variation between shape R1 and the waveform W1 of test audio signal.Also, audio signal output device 12
The comparison being dependent in the second time interval T2 judges the wave between the second radio reception waveform R2 and the waveform W2 of test audio signal
The time difference d2 of deformation.It is showed with time difference d1 and time difference d2 as the propagation time delay in radio reception waveform.
In one embodiment, test audio signal has a signature waveform, for example, particular amplitude pulse or
The sine wave of one specific period, audio signal output device 12 can according in test audio signal signature waveform generate when
Between point, compare radio reception waveform in character pair waveform time point, accordingly calculate test audio signal waveform and radio reception waveform
Time difference, as in radio reception waveform propagation time delay show, but not limited to this.
Then, audio signal output device 12 selects a test elevation angle as the default elevation angle from multiple test elevations angle.
For example, audio signal output device 12 compares radio reception waveform in the intensity of sound performance of first time section T1 and in second
The intensity of sound of time interval T2 shows, and compare radio reception waveform in the propagation time delay performance of first time section T1 and
It is showed in the propagation time delay of the second time interval T2, judges radio reception waveform in the intensity of sound and biography of first time section T1
The performance of defeated time delay relatively meets judgment criteria, then audio signal output device 12 according to upper speaker 121 at the first time
The test elevation angle A of section T1 is as the default elevation angle.
Judge that the standard of intensity of sound and propagation time delay performance can be according to the different characteristics to upper speaker, audiovisual
The environmental condition in space or the demand of user determine that the present embodiment not limits.In one embodiment, judgment criteria can
To be intensity of sound performance compared with powerhouse or propagation time delay performance shorter one, but not limited to this.
After audio signal output device 12 selects a default elevation angle according to radio reception information, then, in playing program
In, audio signal output device 12 is controlled by mode select signal, corresponded to from mode selected in table multiple amendment numerical value wherein it
One adjusts the default elevation angle, with control to upper speaker 121 towards default elevation angle output audio signal adjusted.Mode corresponds to table
Define the amendment numerical value of each audio signal output mode in multiple audio signal output modes, mode select signal specified one
A audio signal output mode.For example, audio signal output mode for example film mode, mode standard, game mode and
Music pattern etc..It is 100% that mode, which corresponds to and defines the amendment numerical value of film mode in table, keeps the effect of three only stereo sound effects best
Change.The amendment numerical value of mode standard is 80%, when user being allowed to watch literature and art film, avoids experiencing the pressure of three only stereo sound effects
Compel sense.The amendment numerical value of game mode be 90%, allow game arrange in pairs or groups stereo sound, obtain preferable sound and light program.Music pattern
Amendment numerical value be 40%, with being intended to eliminate as much as the reflection tone channel come from above, listener is made to have tranquil music taste.
When mode select signal specific audio frequency signal output apparatus 12 executes film mode, audio signal output device 12 is according to film
The amendment numerical value 100% of mode adjusts predetermined angle, and controls and export sound to upper speaker 121 towards 100% predetermined angle
Frequency signal.In other words, when mode select signal specifies film mode, audio is exported to upper speaker 121 towards predetermined angle
Signal.
Mode select signal can be generated by another controller, such as the control that audio signal output device 12 is attached
Device, television set, enlarger or other devices generate.For by taking television set or enlarger as an example, user passes through television set or expansion
Big machine selects audio-visual play mode, and the audio-visual play mode that television set or enlarger are selected according to user again generates mode choosing
Signal is selected to audio signal output device, executes audio signal output device 12 according to the selection of audio-visual play mode
Corresponding audio signal output mode.
In another embodiment, mode select signal can be by equally producing as the smartphone of audio signal reception device 14
It is raw.For clear explanation, below hereby by taking smartphone is as audio signal reception device 14 as an example, description adjust automatically voice directions are
The actual operation mode of system.
Firstly, after audio signal output device 12 is installed on audio-visual space 20, audio signal output device 12 and intelligence
Type mobile phone line, and smartphone is placed in radio reception region 24.Then the upward loudspeaking of audio signal output device 12
Device 121 exports test audio signal with the test elevation angle of every 5 ° of differences between 30 °~70 °, that is, defeated to upper speaker towards 30 °
A test audio signal out, a direction test audio signal of 35 ° of output, a direction test audio signal of 40 ° of output, with
This analogizes.
Smartphone will generate radio reception waveform, and send radio reception waveform to audio signal output according to radio reception content
Device 12.Audio signal output device 12 according to from the received radio reception waveform of smartphone, judgement when to upper speaker 121 with
When 50 ° of the test elevation angle exports test audio signal, the intensity of sound and transmission time of the radio reception waveform that smartphone generates
Delay performance more meets judgment criteria.Audio signal output device 12 is then selected with 50 ° as the default elevation angle.Later, Yu Bo
In mode playback, when listener executes music pattern from smartphone middle finger audio signal output device 12, audio signal
Amendment numerical value 40% of the output device 12 according to music pattern adjusts the default elevation angle, make to upper speaker 121 towards 50 ° ×
40%=20 ° of sounding elevation angle output audio signal.Amendment numerical value is not necessarily ratio value, is also possible to offset.For example, sound
The amendment numerical value of happy mode is -20 °, then the sounding elevation angle output audio to upper speaker 121 towards 50 ° -20 °=30 ° is believed
Number.
In in practice, elevation angle is preset to upper speaker 121 towards adjusted this when audio signal output device 12 is controlled
When, time of the audio signal output device 12 more according to propagation time delay performance adjustment output audio signal.With identical reality
It applies for example, when to upper speaker 121 towards 20 ° of elevation angle output audio signal, the distance of voice transmission is also with upward
The elevation angle of loudspeaker 121 and change, therefore, when audio signal output device 12 is according to upper speaker 121 towards 20 °, radio reception
The time of the propagation time delay performance adjustment output audio signal of waveform.In one embodiment, the default elevation angle adjusted
It is contained in the test elevation angle that audio signal output device 12 is tested in test pattern.In other embodiments, work as adjustment
When the default elevation angle afterwards is not tested in test pattern, audio signal output device 12 can also be tested with other in test pattern
The performance of propagation time delay caused by the elevation angle, is made with interpolation method or other suitable algorithms to calculate the default elevation angle adjusted
At propagation time delay performance.
In embodiment above-mentioned, radio reception information is the receipts generated by audio signal output device 12 according to audio signal reception device 14
It is that sound wave shape judges as a result, radio reception information can also be judged by audio signal reception device 14 in other embodiments.With radio reception
Device 14 is for smartphone, and smartphone can require audio signal output device 12 to transmit test audio signal
Waveform compares the waveform of test audio signal and radio reception waveform in same time interval with smartphone to smartphone,
Radio reception information is judged accordingly.After, then send radio reception information to audio signal output device 12, make audio signal output device
12 select the default elevation angle according to radio reception information.Audio signal reception device 14 judges described in for example previous embodiment of the mode of radio reception information,
It is not repeated here in this.
It is the function of the audio signal output device according to depicted in yet another embodiment of the invention please with reference to Fig. 4, Fig. 4
Block diagram.It is stored up as shown, audio signal output device 30 has to upper speaker 31, rotating member 33, controller 35 and data
Storage 37.To upper speaker 31 to output audio signal.Rotating member 33 is controlled by control to carry to upper speaker 31
Signal, to adjust the voice directions to upper speaker 31.Controller 35 be electrically connected rotating member 33, to generate control signal with
Control rotating member 33 adjusts the voice directions to upper speaker 31.In test program, controller 35 controls rotating member 33 and adjusts
Test audio signal is exported to upper speaker 31 towards multiple test elevations angle, and according to radio reception information, selects a test elevation angle
As the default elevation angle.
Reception situation of the radio reception information association test audio signal in radio reception region, such as with smartphone in radio reception
The test audio signal that region detection is issued to upper speaker 31, and radio reception wave is generated according to the audio signal content received
Shape.After smartphone generates radio reception waveform, then from the waveform of the reception test audio signal of audio signal output device 30, to sentence
The intensity and waveform variation of disconnected radio reception waveform and the waveform of test audio signal, generate radio reception information accordingly.Smartphone from
The waveform of the reception test audio signal of audio signal output device 30 is, for example, the audio signal files of test audio signal waveform
Or other suitable file types.In this present embodiment, smartphone is from the received test tone of audio signal output device 30
Frequency signal, the non-audio signal detected by the radio reception device of smartphone, but it is defeated by smartphone and audio signal
Obtained file is wired or wirelessly connected between device 30 out.In other embodiments, smartphone can also will be produced
Raw radio reception waveform is by being wired or wirelessly connected to be transferred to audio signal output device 30, by audio signal output device 30
Controller 35 judge radio reception waveform and test audio signal waveform intensity and waveform variation, accordingly generate radio reception information.
In playing program, controller 35 corresponds to one amendment numerical value of selection in table according to mode select signal, from mode
The default elevation angle is adjusted, and controls rotating member 33 and adjusts to upper speaker 31 towards default elevation angle output audio signal adjusted.
Mode select signal specifies an audio signal output mode.In this present embodiment, mode select signal can be by intelligent hand
Machine generates, and can also be generated by other controllers.In other words, audio signal output device 30 can be by an audio signal reception device
Generate radio reception waveform, select audio signal output mode by another controller, in other embodiments, audio signal reception device and
Controller can be the same device, such as smartphone, to generate radio reception waveform and specific audio frequency signal output mode.
Data storage device 37 corresponds to table to storage mode, and mode corresponds to table and defines each audio signal output mode
Correct numerical value.Audio signal output mode is, for example, film mode, mode standard, game mode and music pattern, and mode is corresponding
The amendment numerical value that film mode is defined in table is 100%, and the amendment numerical value of mode standard is the amendment numerical value of 80%, game mode
Amendment numerical value for 90% and music pattern is 40%.
In other embodiments, mode corresponds to the amendment numerical value that table can also be defined as different users.For example, make
User such as father, mother, child, and wherein father's height 180cm, mother height 165cm, child's height 120cm.Mode pair
The height in table according to father, mother, child is answered, the amendment numerical value for defining father is 100%, the amendment numerical value of mother is
90%, the amendment numerical value of child is 70%.In this embodiment, when audio signal output device 30 executes test program, it is
It is tested on the basis of the height of father, therefore the amendment numerical value of father is 100%.In this present embodiment, the people of user
Number, height and amendment numerical value are not in a limitative way the present invention only for convenience of purposes of discussion.
Method in order to explain adjust automatically voice directions of the invention, adjust automatically sounding shown in FIG. 1 of arranging in pairs or groups below
The system in direction illustrates together.The adjust automatically hair of another embodiment according to the present invention is painted please also refer to Fig. 1 and Fig. 5, Fig. 5
The flow chart of the method in sound direction.As shown, in step S401, when Yu Zhihang test program, to divide to upper speaker 12
Test audio signal is not exported towards multiple test elevations angle.In step S403, when Yu Zhihang test program, with audio signal reception device 14
The test audio signal exported to upper speaker 121 is received positioned at radio reception region 24, and according to the test audio signal received
Generate radio reception waveform.In step S405, radio reception information is generated according to radio reception waveform.In step S407, foundation radio reception information,
Select a test elevation angle as the default elevation angle.In step S409, when Yu Zhihang playing program, according to mode select signal,
Corresponding to from mode selects an amendment numerical value to adjust the default elevation angle in table.Mode corresponds to table and defines multiple audio signal output modes
In each audio signal output mode amendment numerical value, and mode select signal specify an audio signal output mode.In
In step S411, when Yu Zhihang playing program, to upper speaker 121 towards default elevation angle output audio signal adjusted.This
The method of the invention adjust automatically voice directions is actually disclosed in the embodiment of foregoing description, the present embodiment
Not repeated explanation herein.
In summary, the embodiment of the present invention provides a kind of system of adjust automatically voice directions, audio signal output
Devices and methods therefor raises angle output test audio signal by upper speaker towards multiple tests, is located at audio signal reception device and listens
Test audio signal is detected in the position of hearer, and generates radio reception information accordingly, allows audio signal output device according to receipts
Message breath judge to be suitble to audio-visual space to the upper speaker elevation angle, use solution and be unable to reach most in different environmental conditions
The problem of good panorama audio.In addition, pre- to correct by the amendment numerical value that mode corresponds to different audio signals output mode in table
If the elevation angle, audio signal output device also makes listener exist other than listener can be allowed to have the impression of preferable panorama audio
Optimal audio can be obtained under a variety of situations.
Certainly, the present invention can also have other various embodiments, without deviating from the spirit and substance of the present invention, ripe
It knows those skilled in the art and makes various corresponding changes and modifications, but these corresponding changes and change in accordance with the present invention
Shape all should fall within the scope of protection of the appended claims of the present invention.
Claims (9)
1. a kind of system of adjust automatically voice directions characterized by comprising
One audio signal output device, at least with one to upper speaker, the audio signal output device in a test program
It controls this and is respectively facing multiple test elevation angle output at least test audio signals, and one radio reception information of foundation to upper speaker,
Select those test elevations angle therein one as a default elevation angle, the audio signal output device is controlled by a playing program
One mode select signal corresponds to from a mode and selects multiple amendment numerical value adjustment therein default elevation angle in table, with control
This is to upper speaker towards the default elevation angle output audio signal adjusted, and wherein the mode corresponds to table and defines multiple audio letters
The amendment numerical value of each audio signal output mode, the mode select signal specify those audio signals in number output mode
One of output mode；And
One audio signal reception device receives the test audio signal positioned at a radio reception region in the test program, and according to receiving
The test audio signal generate a radio reception waveform, the radio reception waveform to generate the radio reception information,
Wherein, this to upper speaker, each time interval in multiple time intervals is defeated towards those test one of elevations angle
The test audio signal out；And
Wherein, which includes the radio reception waveform in the intensity of sound performance of each time interval or a transmission time
Delay performance, intensity of sound performance are associated with the intensity of the radio reception waveform and the waveform characteristics difference of the test audio signal,
The time that propagation time delay performance is associated with the waveform variation of the radio reception waveform and the waveform of the test audio signal changes
Difference.
2. the system of adjust automatically voice directions according to claim 1, which is characterized in that the mode select signal is by this
Audio signal reception device generates.
3. the system of adjust automatically voice directions according to claim 1, which is characterized in that filled when the audio signal exports
Set control this to upper speaker towards the default elevation angle adjusted when, the audio signal output device is more according to the transmission time
The time of delay performance adjustment output audio signal.
4. a kind of audio signal output device of adjust automatically voice directions characterized by comprising
One to upper speaker, to output audio signal；
One rotating member is controlled by a control signal, to carry this to upper speaker to adjust the sounding side to upper speaker
To；
One controller is electrically connected the rotating member, adjusts the upward loudspeaking to generate the control signal to control the rotating member
The voice directions of device, in a test program, the controller control the rotating member adjust this be respectively facing to upper speaker it is multiple
Test the elevation angle and export an at least test audio signal, and according to a radio reception information, select one of those test elevations angle as
The one default elevation angle, the radio reception information association in the test audio signal in the reception situation in a radio reception region, in a playing program
In the controller according to a mode select signal, correspond to that select one of multiple amendment numerical value to adjust this in table pre- from a mode
If the elevation angle, and control the rotating member and adjust this to upper speaker towards the default elevation angle output audio signal adjusted, the mould
Formula selection signal specifies one of multiple audio signal output modes；And
One data storage device corresponds to table to store the mode, which corresponds to table and define each audio signal output mode
The amendment numerical value,
Wherein, this to upper speaker, each time interval in multiple time intervals is defeated towards those test one of elevations angle
The test audio signal out；And
Wherein, which includes a radio reception waveform in the intensity of sound performance of each time interval or a transmission time
Delay performance, intensity of sound performance are associated with the intensity of the radio reception waveform and the waveform characteristics difference of the test audio signal,
The time that propagation time delay performance is associated with the waveform variation of the radio reception waveform and the waveform of the test audio signal changes
Difference.
5. the audio signal output device of adjust automatically voice directions according to claim 4, which is characterized in that when the control
When device processed controls the rotating member and adjusts this to upper speaker towards the default elevation angle adjusted, the controller is more according to the transmission
The time of time delay performance adjustment output audio signal.
6. the audio signal output device of adjust automatically voice directions according to claim 4, which is characterized in that the mode
Selection signal is generated by an audio signal reception device.
7. a kind of method of adjust automatically voice directions characterized by comprising
In a test program, multiple test elevation angle output at least test audio signals are respectively facing to upper speaker with one；
In the test program, a radio reception region is located at an audio signal reception device and receives the test audio signal, and foundation receives
The test audio signal generate a radio reception waveform；
A radio reception information is generated according to the radio reception waveform；
According to the radio reception information, select one of those test elevations angle as a default elevation angle；
In a playing program, according to a mode select signal, corresponded to from a mode selected in table multiple amendment numerical value wherein it
The one adjustment default elevation angle, the mode correspond to table and define each audio signal output mode in multiple audio signal output modes
The amendment numerical value, and the mode select signal specifies one of those audio signal output modes；And
In the playing program, this presets elevation angle output audio signal to upper speaker towards adjusted this,
Wherein, this to upper speaker, each time interval in multiple time intervals is defeated towards those test one of elevations angle
The test audio signal out further includes in the step of generating the radio reception information according to the radio reception waveform according to the audio signal reception device
The radio reception waveform generated in each time interval, generates the radio reception information；And
Wherein, which includes the radio reception waveform in the intensity of sound performance of each time interval or a transmission time
Delay performance, intensity of sound performance are associated with the intensity of the radio reception waveform and the waveform characteristics difference of the test audio signal,
The time that propagation time delay performance is associated with the waveform variation of the radio reception waveform and the waveform of the test audio signal changes
Difference.
8. the method for adjust automatically voice directions according to claim 7, which is characterized in that the mode select signal is by this
Audio signal reception device generates.
9. the method for adjust automatically voice directions according to claim 7, which is characterized in that further include when the upward loudspeaking
It when device presets elevation angle towards adjusted this, is showed according to the propagation time delay, adjusts this to upper speaker output audio letter
Number time.
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