CN110139204A - Intelligent sound equipment acoustical behavior test method and system - Google Patents
Intelligent sound equipment acoustical behavior test method and system Download PDFInfo
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- CN110139204A CN110139204A CN201910458080.8A CN201910458080A CN110139204A CN 110139204 A CN110139204 A CN 110139204A CN 201910458080 A CN201910458080 A CN 201910458080A CN 110139204 A CN110139204 A CN 110139204A
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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
- H04R29/00—Monitoring arrangements; Testing arrangements
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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
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Abstract
The disclosure provides a kind of intelligent sound equipment acoustical behavior test method and system, by generating and playing frequency sweep audio-frequency test signal, intelligent sound equipment to be measured is controlled with audio-frequency test signal described in identical reception distance and identical height and different angular acceptances, and determine the corresponding acoustical behavior parameter of audio-frequency test signal received, to realize acoustical behavior detection of the sound pick up equipment of intelligent sound equipment under different angle, can be provided safeguard for the speech recognition of intelligent sound equipment or assignment test；If the acoustical behavior consistency of intelligent sound equipment is better under different angle, intelligent sound equipment wakes up performance difference with regard to smaller to the voice under different angle, and voice wakes up and identification error rate is lower；The intelligent sound equipment acoustical behavior testing scheme of the disclosure executes before intelligent sound equipment tuning, if the test of intelligent sound equipment acoustical behavior does not pass through, will not continue to tuning, to use manpower and material resources sparingly, improves product yield.
Description
Technical field
This disclosure relates to pick up facility the field of test technology, and in particular to a kind of intelligent sound equipment acoustical behavior test side
Method and system.
Background technique
Intelligent sound equipment needs to carry out speech recognition arousal function in use, when the source of sound of wake-up come from
When different direction, recognition effect can be had differences, and be needed under different angle to the microphone array strake of intelligent sound equipment
Acoustical behavior is tested, is analyzed.
Most of intelligent sound box default uses full directional microphone, by the otherness shadow of microphone monomer in microphone array
It rings, the parameters,acoustic that array received arrives under different angle is different.When needing intelligent sound equipment to do source of sound positioning, available to
At this moment uni-directional microphone or two fingers need to do angle measurement to intelligent sound equipment, judge wake-up sound to microphone array
The position source in source accurately identifies wake-up in the case where waking up the identical situation of word to be located at more intelligent sound equipment of different location
Word.
However, currently without the skill for testing acoustical behavior of the microphone array strake of intelligent sound equipment under different angle
Art scheme.
Summary of the invention
The disclosure aiming at the above shortcomings existing in the prior art, provides a kind of intelligent sound equipment acoustical behavior test side
Method and system.
In a first aspect, the embodiment of the present disclosure provides a kind of intelligent sound equipment acoustical behavior test method, the method packet
It includes:
Audio-frequency test signal is generated and plays, the audio-frequency test signal is swept-frequency signal；
Intelligent sound equipment to be measured is controlled with sound described in identical reception distance and identical height and different angular acceptances
Frequency test signal；
Determine the corresponding acoustical behavior parameter of audio-frequency test signal received.
Further, after the broadcasting audio-frequency test signal, control intelligent sound equipment to be measured is with identical reception distance
Before audio-frequency test signal described in identical height and different angular acceptances, the method also includes: according to the reception
The sound pressure level of range calibration audio-frequency test signal.
Preferably, the broadcasting audio-frequency test signal, specifically includes: playing the audio according to preset playback period and surveys
Trial signal；
The control intelligent sound equipment to be measured is with identical reception distance and identical height and different angular acceptances institute
Audio-frequency test signal is stated, is specifically included:
It controls intelligent sound equipment to be measured to horizontally rotate in situ, so that the sound pick up equipment of the intelligent sound equipment to be measured
It is rotated coaxially with the intelligent sound equipment to be measured, and during rotation according to preset interval angles pause preset duration,
So that the intelligent sound equipment to be measured receives the audio-frequency test signal when pausing；Wherein, the preset duration is described
Playback period.
Preferably, the interval angles are 10-20 degree.
Preferably, the control intelligent sound equipment to be measured horizontally rotates in situ, specifically includes: control intelligent language to be measured
Sound equipment horizontally rotates in situ 0-360 degree.
Preferably, the acoustical behavior parameter includes at least frequency response；
After the corresponding acoustical behavior parameter of audio-frequency test signal that the determination receives, the method also includes: it is raw
At the frequency response comparison diagram of different angle, and/or, heart shape diagram is generated according to the corresponding frequency response of default frequency point.
Further, the acoustical behavior parameter further include: total harmonic distortion, phase and polarity.
On the other hand, the embodiment of the present disclosure also provides a kind of intelligent sound equipment acoustical behavior test macro, comprising:
Audio signal processor, playing device and controller；
The audio signal processor is used for, and generates audio-frequency test signal, and the audio-frequency test signal is sent to
The playing device；The audio-frequency test signal is swept-frequency signal；And it receives the audio that intelligent sound equipment to be measured is sent and surveys
Trial signal, and determine the corresponding acoustical behavior parameter of audio-frequency test signal received；
The playing device is used for, and plays the audio-frequency test signal；
The controller is used for, and the control intelligent sound equipment to be measured is with identical reception distance and identical height and not
Audio-frequency test signal described in same angular acceptance, and the audio-frequency test signal received is sent to the Audio Signal Processing and is filled
It sets.
Further, the intelligent sound equipment acoustical behavior test macro further includes calibrator (-ter) unit, the calibrator (-ter) unit
For, after the playing device plays the audio-frequency test signal, the controller control intelligent sound equipment to be measured with
Before audio-frequency test signal described in identical reception distance and identical height and different angular acceptances, in the intelligent language to be measured
The sound pressure level of the reserved location calibration audio-frequency test signal of sound equipment.
Preferably, the playing device is specifically used for, and plays the audio-frequency test signal according to preset playback period；
The controller is specifically used for, and controls intelligent sound equipment to be measured and horizontally rotates in situ, so that the intelligence to be measured
The sound pick up equipment of energy speech ciphering equipment is rotated coaxially with the intelligent sound equipment to be measured, and during rotation according to preset
Every angle pause preset duration, so that the intelligent sound equipment to be measured receives the audio-frequency test signal when pausing；Wherein,
The preset duration is the playback period.
Preferably, the interval angles are 10-20 degree.
Preferably, the controller is specifically used for, and controls intelligent sound equipment to be measured and horizontally rotates 0-360 degree in situ.
Preferably, the acoustical behavior parameter includes at least frequency response；
The audio signal processor is also used to, and is determining the corresponding acoustical behavior ginseng of audio-frequency test signal received
After number, the frequency response comparison diagram of different angle is generated, and/or, it is generated according to the corresponding frequency response of default frequency point heart-shaped
Figure.
Further, the acoustical behavior parameter further include: total harmonic distortion, phase and polarity.
Embodiment of the disclosure, by generating and play frequency sweep audio-frequency test signal, control intelligent sound equipment to be measured with
Audio-frequency test signal described in identical reception distance and identical height and different angular acceptances, and determine that the audio received is surveyed
The corresponding acoustical behavior parameter of trial signal, to realize acoustical behavior of the sound pick up equipment of intelligent sound equipment under different angle
Detection can provide safeguard for the speech recognition of intelligent sound equipment or assignment test；If intelligent sound equipment under different angle
Acoustical behavior consistency it is better, intelligent sound equipment under different angle voice wake up performance difference it is just smaller, voice is called out
It wakes up and identification error rate is lower；The intelligent sound equipment acoustical behavior testing scheme of the disclosure intelligent sound equipment tuning it
Preceding execution will not continue to tuning if the test of intelligent sound equipment acoustical behavior does not pass through, to use manpower and material resources sparingly, improve
Product yield.
Detailed description of the invention
Fig. 1 is embodiment of the present disclosure intelligent sound equipment acoustical behavior test system structure figure；
Fig. 2 is one embodiment intelligent sound equipment acoustical behavior test method flow chart of the disclosure；
Fig. 3 is another embodiment intelligent sound equipment acoustical behavior test method flow chart of the disclosure；
Fig. 4 is the another embodiment intelligent sound equipment acoustical behavior test method flow chart of the disclosure.
Specific embodiment
Example embodiment will hereinafter be described more fully hereinafter with reference to the accompanying drawings, but the example embodiment can be with difference
Form embodies and should not be construed as being limited to embodiment set forth herein.Conversely, the purpose for providing these embodiments is
It is thoroughly and complete to make the disclosure, and those skilled in the art will be made to fully understand the scope of the present disclosure.
As it is used herein, term "and/or" includes any and all combinations of one or more associated listed entries.
Term as used herein is only used for description specific embodiment, and is not intended to limit the disclosure.As used herein
, "one" is also intended to "the" including plural form singular, unless in addition context is expressly noted that.It will also be appreciated that
Be, when in this specification use term " includes " and/or " by ... be made " when, specify there are the feature, entirety, step,
Operation, element and/or component, but do not preclude the presence or addition of other one or more features, entirety, step, operation, element,
Component and/or its group.
Embodiment described herein can by the idealized schematic diagram of the disclosure and reference planes figure and
/ or sectional view be described.It therefore, can be according to manufacturing technology and/or tolerance come modified example diagram.Therefore, real
It applies example and is not limited to embodiment shown in the drawings, but the modification of the configuration including being formed based on manufacturing process.Therefore, attached drawing
The area of middle illustration has schematic attribute, and the shape in area as shown in the figure instantiates the concrete shape in the area of element, but not
It is intended to restrictive.
Unless otherwise defined, the otherwise meaning of all terms (including technical and scientific term) used herein and this field
The normally understood meaning of those of ordinary skill is identical.It will also reason
Solution, such as those those of limited in common dictionary term should be interpreted as having and its relevant technologies with
And the consistent meaning of meaning under the background of the disclosure, and will be not interpreted as removing with idealization or excessively formal meaning
Non- so restriction clear herein.
The disclosure provides a kind of intelligent sound equipment acoustical behavior test method, and this method is applied to intelligence as shown in Figure 1
Can speech ciphering equipment acoustical behavior test macro, the system comprises audio signal processor 1, playing device 2 and controller 3,
For testing the acoustical behavior of intelligent sound equipment 4 to be measured.It should be noted that the intelligent sound equipment acoustical behavior of the disclosure
Test is carried out under free-field condition, and free-field condition refers to only direct sound wave, and without reflected sound, the disclosure utilizes noise elimination
Free-field condition of the room as simulation, playing device 2 and intelligent sound equipment 4 to be measured are arranged in anechoic room, audio signal
Processing unit 1 and controller 3 are arranged outside anechoic room.Audio signal processor 1 can produce audio-frequency test signal, and audio is surveyed
Trial signal is played via playing device 2, and the sound pick up equipment (not being painted in figure) of intelligent sound equipment 4 to be measured receives the audio-frequency test
Signal, and the audio-frequency test signal received is sent to audio signal processor 1, it is calculated by audio signal processor 1
Obtain corresponding acoustical behavior parameter.Audio signal processor 1 can be audio analyzer, and playing device 2 can be speaker,
Controller 3 can be host computer, and sound pick up equipment can be microphone or microphone array.Intelligent sound equipment 4 to be measured can be
Smart home device, for example, intelligent sound box, smart television etc..
Below in conjunction with Fig. 1 and Fig. 2, the intelligent sound equipment acoustical behavior test method of an embodiment of the present disclosure is carried out
It is described in detail.As shown in Fig. 2, method includes the following steps:
Step 11, it generates and plays audio-frequency test signal.
Specifically, audio signal processor 1 includes standard audio signal generator, standard audio signal generator conduct
Exciting signal source can produce audio-frequency test signal, and the audio-frequency test signal of generation be sent to playing device 2.It needs
Bright, in the disclosure, audio-frequency test signal is swept-frequency signal, and frequency range is 20Hz~20KHz, and audio-frequency test is believed
Number sound pressure level be 94dBSPL.
As shown in Figure 1, it is preferred that the intelligent sound equipment acoustical behavior test macro can also include that power amplification fills
5 are set, power amplifier device 5 is connected with audio signal processor 1 and playing device 2 respectively, for filling to Audio Signal Processing
The audio-frequency test signal for setting 1 generation carries out power amplification, and the audio-frequency test signal after power amplification is sent to playing device
2.Therefore, the audio-frequency test signal that playing device 2 plays is the audio-frequency test signal by power amplification.
Specifically, playing device 2 plays audio-frequency test signal according to preset playback period, in a playback period,
Complete the broadcasting of a swept-frequency signal (i.e. audio-frequency test signal), it is preferred that playback period can be set to 3-8s.It is all when playing
When phase is set as 5s, under logarithm frequency sweep (Log sweep) mode, the sweep parameters of swept-frequency signal are as follows: 1/6 octave, minimum
Duration 20ms, minimal circulation period 20Cycles.
Step 12, intelligent sound equipment to be measured is controlled with identical reception distance and identical height and different angular acceptances
Audio-frequency test signal.
During the test, the relative altitude between intelligent sound equipment 4 to be measured and playing device 2 and apart from constant, but
Relative angle between the two changes.Preferably, in the embodiments of the present disclosure, receiving distance can be set to 0.5m.It needs
It is noted that during the test, the sound pick up equipment of intelligent sound equipment 4 to be measured is located at the side of intelligent sound equipment 4 to be measured
Face, the high settings such as playing device 2 and intelligent sound equipment 4 to be measured.
There can be 2 kinds of modes to adjust the angle between intelligent sound equipment 4 to be measured and playing device 2, a kind of mode is control
The rotation in situ of intelligent sound equipment 4 to be measured is made, another way is control intelligent sound equipment 4 to be measured around playing device 2
Rotation.In the embodiments of the present disclosure, it is carried out specifically for controlling the scheme that intelligent sound equipment 4 to be measured rotates in situ
It is bright.Horizontally rotate in situ specifically, controlling intelligent sound equipment 4 to be measured, so that the sound pick up equipment of intelligent sound equipment 4 to be measured
It is rotated coaxially with intelligent sound equipment 4 to be measured, and during rotation according to preset interval angles pause preset duration, so that
Intelligent sound equipment 4 to be measured receives audio-frequency test signal when pausing；Wherein, preset duration is the playback period.Namely
It says, intelligent sound equipment 4 to be measured pauses a period of time at interval of certain angle to receive audio-frequency test signal.Wherein, angular interval
Degree can be 10-20 degree, and preferably 15 degree, interval angles are smaller, and measuring accuracy is higher.
In the embodiments of the present disclosure, as shown in connection with fig. 1, turntable 6, intelligent sound equipment to be measured can be set in anechoic room
4 are placed on turntable 6, control turntable 6 by controller 3 and horizontally rotate.If just by the sound pick up equipment in intelligent sound equipment 4 to be measured
0 degree is defined as to the position of player 2, turntable 6 rotates counterclockwise, then intelligent sound equipment 4 to be measured is in 270 degree in Fig. 1
Position.
Preferably, controller 3 controls intelligent sound equipment 4 to be measured and horizontally rotates 0-360 degree in situ, i.e. test scope is
0-360 degree, to realize the comprehensive test of acoustical behavior.
It, can be with it should be noted that surround the scheme that playing device 2 rotates for intelligent sound equipment 4 to be measured is controlled
Playing device 2 is the center of circle (playing device 2 remains stationary), and intelligent sound equipment 4 to be measured rotates and its own around playing device 2
It does not rotate, can equally test acoustical behavior of the intelligent sound equipment 4 under different angle, but due to playing device 2 itself
It is an area source of sound, sound has directive property, and therefore, it is not optimal case that this testing scheme accuracy is bad.
Step 13, the corresponding acoustical behavior parameter of audio-frequency test signal received is determined.
Specifically, corresponding acoustical behavior can be calculated after audio signal processor 1 receives audio-frequency test signal
Parameter.Determine that the specific implementation of the corresponding acoustical behavior parameter of audio-frequency test signal belongs to the prior art, it is no longer superfluous herein
It states.
It can be seen that the disclosure by generating and playing frequency sweep audio-frequency test signal by step 11-13, control intelligence to be measured
Energy speech ciphering equipment is with audio-frequency test signal described in identical reception distance and identical height and different angular acceptances, and determination connects
The corresponding acoustical behavior parameter of audio-frequency test signal received, to realize the sound pick up equipment of intelligent sound equipment in different angle
Under acoustical behavior detection, can for intelligent sound equipment speech recognition or assignment test provide safeguard；If under different angle
The acoustical behavior consistency of intelligent sound equipment is better, and intelligent sound equipment wakes up performance difference just to the voice under different angle
Smaller, voice wakes up and identification error rate is lower；The intelligent sound equipment acoustical behavior testing scheme of the disclosure is in intelligent language
It is executed before sound equipment tuning, if the test of intelligent sound equipment acoustical behavior does not pass through, will not continue to tuning, to save people
Power material resources improve product yield.
It further include calibration audio in the intelligent sound equipment acoustical behavior test method that another embodiment of the disclosure provides
The step of testing the sound pressure level of signal, as shown in figure 3, (i.e. after step 11), controlling intelligence to be measured playing audio-frequency test signal
Can speech ciphering equipment with identical reception distance and identical height and different angular acceptance audio-frequency test signals (i.e. step 12) it
Before, the method also includes following steps:
Step 11 ', according to the sound pressure level for receiving range calibration audio-frequency test signal.
As shown in connection with fig. 1, the intelligent sound equipment acoustical behavior test macro further includes calibrator (-ter) unit 7, calibrator (-ter) unit 7
It can be standard microphone, the frequency response curve of standard microphone is in straight line in the frequency bandwidth used substantially, is led to
Often float up and down positive and negative 1dB.Preferably, the standard microphone that microphone is 1/2 " or 1/4 " can be selected to calibrate.
Specifically, calibrator (-ter) unit 7 is placed on intelligent sound equipment 4 to be measured before testing intelligent sound equipment 4 to be measured
Reserved location, i.e., calibrator (-ter) unit 7 is placed on turntable 6 to (turntable 6 and 2 distance 0.5m of playing device), and set using calibration
The sound pressure level of audio-frequency test signal is calibrated to 94dBSPL by standby 7.
After the wind pressure grade that audio-frequency test signal is completed in calibration, intelligent sound equipment to be measured that the test can be started 4 is not
With the acoustical behavior under angle.In the present embodiment, step 11,12,13 specific implementation it is identical as previous embodiment,
This is repeated no more.
Preferably, acoustical behavior parameter includes at least frequency response (Frequency Response, FR), correspondingly,
In the intelligent sound equipment acoustical behavior test method of the another embodiment of the disclosure, as shown in figure 4, determining the audio received
Test the corresponding acoustical behavior parameter of signal (i.e. after step 13), the method can with the following steps are included:
Step 14, the frequency response comparison diagram of different angle is generated, and/or, according to the corresponding frequency response of default frequency point
Generate heart shape diagram.
Specifically, being previously provided with default frequency point in audio signal processor 1, frequency point can be according to audio-frequency test signal
Sweep parameters and frequency sweep mode determine, for example, default frequency point can be 500Hz, 1KHz, 2KHz, 4KHz, 8KHz.It is calculating
Out after the corresponding frequency response of audio-frequency test signal, audio signal processor 1 can determine the default corresponding frequency of frequency point
Rate response, and heart shape diagram is generated according to the frequency response.Heart shape diagram indicates the relationship between angle and frequency response, in figure
Every curve characterizes different choacoustic frequency points respectively.For uni-directional microphone, 0 ° of position, (i.e. microphone face is broadcast
Put the position of device 2) sensitivity is maximum, and it is minimum in 180 ° of positions (i.e. microphone back to the position of playing device 2) sensitivity；It is right
For full directional microphone, the sensitivity of all angles is equal；For double directional microphones, 0 ° of position and
180 ° of position-sensitivity maximums.
Audio signal processor 1 can also generate different angle frequency response curve according to the frequency response determined
Comparison diagram, the abscissa of frequency response curve is the frequency of audio-frequency test signal, and ordinate is frequency response, and every frequency is rung
Curve is answered to characterize different test angles respectively, the comparison diagram of different angle frequency response curve can intuitively reflect each angle
The difference of frequency response of degree.
It should be noted that acoustical behavior parameter can also include: total harmonic distortion (Total Harmonic
Distortion, THD), phase (Phase) and polarity (Polarity) etc..
Present disclose provides ability (the i.e. acoustics that a kind of test intelligent sound equipment receives voice signal under different angle
Performance parameter) scheme, data reference can be provided for speech recognition algorithm.According to usage scenario, these acoustical behavioies are joined
The index item that several consistency is tested as intelligent sound device hardware, if the consistency of acoustical behavior parameter is unsatisfactory for wanting
It asks, will not further carry out tuning on the hardware.The acoustical behavior parameter of intelligent sound equipment is consistent under different angle
Property it is better, intelligent sound equipment under different angle voice wake up performance difference will be smaller, voice wake up and identification mistake
Rate will show lower.For example, smart television requires 180 degree indifference, intelligent sound box requires 360 degree of indifferences.
Based on the same technical idea, the embodiment of the present disclosure also provides a kind of intelligent sound equipment acoustical behavior test system
System, as shown in Figure 1, the intelligent sound equipment acoustical behavior test macro includes: audio signal processor 1,2 and of playing device
Controller 3.
Audio signal processor 1 is used for, and generates audio-frequency test signal, and the audio-frequency test signal is sent to broadcasting
Device 2；The audio-frequency test signal is swept-frequency signal；And receive the audio-frequency test letter that intelligent sound equipment 4 to be measured is sent
Number, and determine the corresponding acoustical behavior parameter of audio-frequency test signal received.
Playing device 2 is used for, and plays the audio-frequency test signal.
Controller 3 is used for, and controls intelligent sound equipment 4 to be measured with identical reception distance and identical height and different angles
Degree receives the audio-frequency test signal, and the audio-frequency test signal received is sent to audio signal processor 1.
In another embodiment of the disclosure, intelligent sound equipment acoustical behavior test macro further includes calibrator (-ter) unit 7, calibration
Equipment 7 is used for, after playing device 2 plays the audio-frequency test signal, controller 3 control intelligent sound equipment to be measured with phase
Before audio-frequency test signal described in reception distance and identical height and different angular acceptances, in intelligent sound equipment to be measured
The sound pressure level of 4 reserved location calibration audio-frequency test signal.
Preferably, playing device 2 is specifically used for, and plays the audio-frequency test signal according to preset playback period.
Controller 3 is specifically used for, and controls intelligent sound equipment 4 to be measured and horizontally rotates in situ, so that intelligent sound to be measured
The sound pick up equipment of equipment 4 is rotated coaxially with intelligent sound equipment 4 to be measured, and is stopped during rotation according to preset interval angles
Preset duration, so that intelligent sound equipment 4 to be measured receives the audio-frequency test signal when pausing；Wherein, when described default
A length of playback period.
Preferably, interval angles are 10-20 degree.
Preferably, controller 3 is specifically used for, and controls intelligent sound equipment 4 to be measured and horizontally rotates 0-360 degree in situ.
Preferably, the acoustical behavior parameter includes at least frequency response；
Audio signal processor 1 is also used to, and is determining the corresponding acoustical behavior parameter of audio-frequency test signal received
Later, the frequency response comparison diagram of different angle is generated, and/or, heart shape diagram is generated according to the corresponding frequency response of default frequency point.
Further, the acoustical behavior parameter further include: total harmonic distortion, phase and polarity.
It will appreciated by the skilled person that in whole or certain steps, device in method disclosed hereinabove
Functional module/unit may be implemented as software, firmware, hardware and its combination appropriate.In hardware embodiment, with
Division between the functional module/unit referred in upper description not necessarily corresponds to the division of physical assemblies；For example, a physics
Component can have multiple functions or a function or step and can be executed by several physical assemblies cooperations.Certain physical sets
Part or all physical assemblies may be implemented as by processor, as central processing unit, digital signal processor or microprocessor are held
Capable software is perhaps implemented as hardware or is implemented as integrated circuit, such as specific integrated circuit.Such software can be with
Distribution on a computer-readable medium, computer-readable medium may include computer storage medium (or non-transitory medium) and
Communication media (or fugitive medium).As known to a person of ordinary skill in the art, term computer storage medium is included in use
In any method or technique of storage information (such as computer readable instructions, data structure, program module or other data)
The volatile and non-volatile of implementation, removable and nonremovable medium.Computer storage medium include but is not limited to RAM,
ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disc (DVD) or other optical disc storages, magnetic holder,
Tape, disk storage or other magnetic memory apparatus or it can be used for storing desired information and can be accessed by a computer
Any other medium.In addition, known to a person of ordinary skill in the art be, communication media generally comprises computer-readable finger
It enables, other data in the modulated data signal of data structure, program module or such as carrier wave or other transmission mechanisms etc,
It and may include any information delivery media.
Example embodiment has been disclosed herein, although and use concrete term, they are only used for simultaneously only should
It is interpreted general remark meaning, and is not used in the purpose of limitation.In some instances, aobvious to those skilled in the art and
Be clear to, unless otherwise expressly stated, the feature that description is combined with specific embodiment that otherwise can be used alone, characteristic and/
Or element, or the feature, characteristic and/or element of description can be combined with other embodiments and be applied in combination.Therefore, art technology
Personnel will be understood that, in the case where not departing from the scope of the present invention illustrated by the attached claims, can carry out various forms
With the change in details.
Claims (14)
1. a kind of intelligent sound equipment acoustical behavior test method, wherein the described method includes:
Audio-frequency test signal is generated and plays, the audio-frequency test signal is swept-frequency signal；
Intelligent sound equipment to be measured is controlled with the survey of audio described in identical reception distance and identical height and different angular acceptances
Trial signal；
Determine the corresponding acoustical behavior parameter of audio-frequency test signal received.
2. the method for claim 1, wherein after the broadcasting audio-frequency test signal, control intelligent sound to be measured is set
Before with audio-frequency test signal described in identical reception distance and identical height and different angular acceptances, the method is also wrapped
It includes: according to the sound pressure level for receiving range calibration audio-frequency test signal.
3. the method for claim 1, wherein broadcasting audio-frequency test signal, specifically includes: according to preset broadcasting
Period plays the audio-frequency test signal；
The control intelligent sound equipment to be measured is with sound described in identical reception distance and identical height and different angular acceptances
Frequency test signal, specifically includes:
It controls intelligent sound equipment to be measured to horizontally rotate in situ, so that the sound pick up equipment of the intelligent sound equipment to be measured and institute
It states intelligent sound equipment to be measured to rotate coaxially, and during rotation according to preset interval angles pause preset duration, so that
The intelligent sound equipment to be measured receives the audio-frequency test signal when pausing；Wherein, the preset duration is the broadcasting
Period.
4. method as claimed in claim 3, wherein the interval angles are 10-20 degree.
5. method as claimed in claim 3, wherein the control intelligent sound equipment to be measured horizontally rotates in situ, specifically
It include: that control intelligent sound equipment to be measured horizontally rotates in situ 0-360 degree.
6. the method according to claim 1 to 5, wherein the acoustical behavior parameter includes at least frequency response；
After the corresponding acoustical behavior parameter of audio-frequency test signal that the determination receives, the method also includes: it generates not
With the frequency response comparison diagram of angle, and/or, heart shape diagram is generated according to the corresponding frequency response of default frequency point.
7. method as claimed in claim 6, wherein the acoustical behavior parameter further include: total harmonic distortion, phase and pole
Property.
8. a kind of intelligent sound equipment acoustical behavior test macro, wherein include: audio signal processor, playing device and
Controller；
The audio signal processor is used for, and generates audio-frequency test signal, and the audio-frequency test signal is sent to described
Playing device；The audio-frequency test signal is swept-frequency signal；And receive the audio-frequency test letter that intelligent sound equipment to be measured is sent
Number, and determine the corresponding acoustical behavior parameter of audio-frequency test signal received；
The playing device is used for, and plays the audio-frequency test signal；
The controller is used for, and controls the intelligent sound equipment to be measured with identical reception distance and identical height and different
Audio-frequency test signal described in angular acceptance, and the audio-frequency test signal received is sent to the audio signal processor.
9. intelligent sound equipment acoustical behavior test macro as claimed in claim 8, wherein it further include calibrator (-ter) unit, it is described
Calibrator (-ter) unit is used for, after the playing device plays the audio-frequency test signal, controller control intelligent language to be measured
Before sound equipment is with audio-frequency test signal described in identical reception distance and identical height and different angular acceptances, it is described to
Survey the sound pressure level of the reserved location calibration audio-frequency test signal of intelligent sound equipment.
10. intelligent sound equipment acoustical behavior test macro as claimed in claim 8, wherein the playing device is specifically used
According to the preset playback period broadcasting audio-frequency test signal；
The controller is specifically used for, and controls intelligent sound equipment to be measured and horizontally rotates in situ, so that the intelligent language to be measured
The sound pick up equipment of sound equipment is rotated coaxially with the intelligent sound equipment to be measured, and during rotation according to preset angular interval
Pause preset duration is spent, so that the intelligent sound equipment to be measured receives the audio-frequency test signal when pausing；Wherein, described
Preset duration is the playback period.
11. intelligent sound equipment acoustical behavior test macro as claimed in claim 10, wherein the interval angles are 10-
20 degree.
12. intelligent sound equipment acoustical behavior test macro as claimed in claim 10, wherein the control implement body is used
In controlling intelligent sound equipment to be measured and horizontally rotate 0-360 degree in situ.
13. such as the described in any item intelligent sound equipment acoustical behavior test macros of claim 8-12, wherein the acoustics
Energy parameter includes at least frequency response；
The audio signal processor is also used to, determine the corresponding acoustical behavior parameter of audio-frequency test signal that receives it
Afterwards, the frequency response comparison diagram of different angle is generated, and/or, heart shape diagram is generated according to the corresponding frequency response of default frequency point.
14. intelligent sound equipment acoustical behavior test macro as claimed in claim 13, wherein the acoustical behavior parameter is also
It include: total harmonic distortion, phase and polarity.
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Application publication date: 20190816 |