CN106211014A - Loudspeaker detection method and device - Google Patents
Loudspeaker detection method and device Download PDFInfo
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- CN106211014A CN106211014A CN201610648974.XA CN201610648974A CN106211014A CN 106211014 A CN106211014 A CN 106211014A CN 201610648974 A CN201610648974 A CN 201610648974A CN 106211014 A CN106211014 A CN 106211014A
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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
- H04R29/001—Monitoring arrangements; Testing arrangements for loudspeakers
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Abstract
The invention discloses a kind of loudspeaker detection method, including: control audio signal generator and generate left audio signal and the right audio signal of frequency diverse；Control audio signal generator and left audio signal, right audio signal are sent respectively to left horn and the right horn of equipment under test, so that left horn sends left sound wave, right horn sends right sound wave；Receive, by left mike, the left channel signals that left sound wave is converted into, and receive, by right mike, the right-channel signals that right sound wave is converted into；When the frequency judging left channel signals, to belong to the first frequency of the frequency comprising right audio signal interval, and when the frequency of right-channel signals belongs to the second frequency interval of the frequency comprising left audio signal, it determines the left and right loudspeaker of described equipment under test connect instead.Correspondingly, the invention also discloses a kind of loudspeaker detection device.Use the embodiment of the present invention, it is possible to detect whether the left and right loudspeaker of electronic equipment connect instead exactly, and detection efficiency can be improved.
Description
Technical field
The present invention relates to Audiotechnica field, particularly relate to a kind of loudspeaker detection method and device.
Background technology
See Fig. 1, be the loudspeaker wiring schematic diagram in the electronic equipment of band loudspeaker, the positive pole of left horn L and audible warning
Input LOConnect, the positive pole of right horn R and audible warning input ROConnect, the negative pole of left horn L and right horn R all ground connection.
So-called left and right loudspeaker connect, it is simply that refer to positive pole and the right horn signal input part R of left horn LOConnection, positive pole and a left side of right horn R
Audible warning input LOConnect, and the negative pole of left horn L and right horn R all ground connection.
Whether the left and right loudspeaker of current detection electronic equipment connect anti-scheme is, artificial in advance by audio signal generator
The HDMI being connected to electronic equipment of HDMI wire, then controls audio signal generator generation L channel sound and sends a left side to
Loudspeaker, the most manually listen whether the left and right both sides loudspeaker of electronic equipment send sound, when left horn does not has sound and right horn is sent out
When going out sound, can judge that the left and right loudspeaker of this electronic equipment connect instead.
But such scheme there are following defect: easily goes out by the way of using artificial cognition loudspeaker whether to send sound
Now judge by accident, and for needing substantial amounts of electronic equipment is carried out to detect for whether loudspeaker connect anti-application scenarios, above-mentioned side
The detection efficiency of case is low；Secondly, when occur manually listening electronics set left and right both sides loudspeaker the most do not send sound time, the most now
Cannot judge whether the left and right loudspeaker of this electronic equipment connect instead.
Summary of the invention
The embodiment of the present invention proposes a kind of loudspeaker detection method, it is possible to detect the left and right loudspeaker of electronic equipment exactly
Whether connect anti-, and detection efficiency can be improved.
A kind of loudspeaker detection method that the embodiment of the present invention proposes, including:
Control audio signal generator and generate left audio signal and right audio signal；Wherein, described left audio signal and institute
State the waveshape signal that right audio signal is frequency diverse；
Control described audio signal generator and described left audio signal is sent to the left horn of equipment under test and by described
Right audio signal is sent to the right horn of described equipment under test, sends left sound for described left horn according to described left audio signal
Ripple, described right horn send right sound wave according to described right audio signal；
Receive left channel signals by left mike, and receive right-channel signals by right mike；Wherein, a described left side
Sound channel signal is, by described left mike, it is collected the signal that left sound wave is converted, and described right-channel signals is by institute
State the signal that right sound wave that it is collected by right mike is converted；
Judge whether the frequency of described left channel signals belongs to first frequency interval, and judge described right-channel signals
It is interval whether frequency belongs to second frequency；Wherein, it is interval that the frequency of described right audio signal belongs to described first frequency, a described left side
It is interval that the frequency of audio signal belongs to described second frequency；
When the frequency of described left channel signals belongs to described first frequency interval, and the frequency of described right-channel signals belongs to
During described second frequency interval, it determines the left and right loudspeaker of described equipment under test connect instead.
Further, described left audio signal and the waveshape signal that described right audio signal is that amplitude is identical, the most described loudspeaker
Detection method also includes:
Judge whether the amplitude of described left channel signals and the amplitude of described right-channel signals belong to amplitude interval；Wherein,
It is interval that the amplitude of described left audio signal and described right audio signal belongs to described amplitude；
If it is interval to belong to described amplitude, then differentiate shaking to touch and being in the shape that normally works of described left horn and described right horn
State；
If it is interval that the amplitude of described left channel signals is not belonging to described amplitude, then differentiate that the vibrating diaphragm of described left horn is in non-
Normal operating conditions；
If it is interval that the amplitude of described right-channel signals is not belonging to described amplitude, then differentiate that the vibrating diaphragm of described right horn is in non-
Normal operating conditions.
Further, after receiving described left channel signals and described right-channel signals, also include:
Noise signal is received by noise reduction microphone；Wherein, described noise signal is to be adopted by described noise reduction microphone
The noise signal that the noise sound wave of the surrounding of equipment under test that collection arrives is converted；
According to described noise signal, received described left channel signals and described right-channel signals are dropped respectively
Make an uproar process.
Yet further, described loudspeaker detection method also includes:
When the frequency of described left channel signals belongs to described first frequency interval, and the frequency of described right-channel signals belongs to
During described second frequency interval, when the amplitude of described left channel signals is not belonging in described amplitude interval or when described right sound
When the amplitude of road signal is not belonging to described amplitude interval, generate alarm control signal；
Control alarm module according to described alarm control signal and carry out alert process.
Further, described loudspeaker detection method also includes:
Described differentiation result is shown in display screen.
Correspondingly, the embodiment of the present invention also provides for a kind of loudspeaker detection device, including:
Audio signal generation module, is used for controlling audio signal generator and generates left audio signal and right audio signal；Its
In, described left audio signal and described right audio signal are the waveshape signal of frequency diverse；
Audio signal sending module, is used for controlling described audio signal generator and is sent to tested by described left audio signal
The left horn of equipment and described right audio signal is sent to the right horn of described equipment under test, for described left horn according to institute
State that left audio signal sends left sound wave, described right horn sends right sound wave according to described right audio signal；
Sound channel signal receiver module, for receiving left channel signals by left mike, and is received by right mike
Right-channel signals；Wherein, described left channel signals is, by described left mike, it is collected the letter that left sound wave is converted
Number, described right-channel signals is the signal that the right sound wave it collected by described right mike is converted；
Frequency judge module, interval for judging whether the frequency of described left channel signals belongs to first frequency, and sentence
It is interval whether the frequency of disconnected described right-channel signals belongs to second frequency；Wherein, the frequency of described right audio signal belongs to described
First frequency is interval, and it is interval that the frequency of described left audio signal belongs to described second frequency；
Loudspeaker state discrimination module, for belonging to described first frequency interval, and institute when the frequency of described left channel signals
State the frequency of right-channel signals when belonging to described second frequency interval, it determines the left and right loudspeaker of described equipment under test connect instead.
Further, described left audio signal and the waveshape signal that described right audio signal is that amplitude is identical, the most described loudspeaker
Detection device also includes:
Amplitude judge module, for judging whether the amplitude of described left channel signals and the amplitude of described right-channel signals belong to
Interval in amplitude；Wherein, the amplitude of described left audio signal and described right audio signal belongs to described amplitude interval；
First vibrating diaphragm discrimination module, for all belonging to when the amplitude of described left channel signals and the amplitude of described right-channel signals
When described amplitude interval, it determines the shaking to touch of described left horn and described right horn is in normal operating conditions；
Second vibrating diaphragm discrimination module, for when the amplitude of described left channel signals is not belonging to described amplitude interval, it determines
The vibrating diaphragm of described left horn is in abnormal operating state；
3rd vibrating diaphragm discrimination module, for when the amplitude of described right-channel signals is not belonging to described amplitude interval, it determines
The vibrating diaphragm of described right horn is in abnormal operating state.
Further, described detection device also includes:
Noise Rx module, for passing through noise reduction wheat after receiving described left channel signals and described right-channel signals
Gram wind receives noise signal；Wherein, described noise signal is the week of the equipment under test collected by described noise reduction microphone
The noise signal that the noise sound wave in collarette border is converted；
Noise reduction process module, is used for received described left channel signals and described right sound according to described noise signal
Road signal carries out noise reduction process respectively.
Yet further, described loudspeaker detection device also includes:
Warning generation module, for belonging to described first frequency interval, and the described right side when the frequency of described left channel signals
When the frequency of sound channel signal belongs to described second frequency interval, when the amplitude of described left channel signals, to be not belonging to described amplitude interval
Time interior or when the amplitude of described right-channel signals is not belonging to described amplitude interval, generate alarm control signal；
Alarm control module, carries out alert process for controlling alarm module according to described alarm control signal.
Further, described loudspeaker detection device also includes:
Display control module, for showing described differentiation result in display screen.
Implement the embodiment of the present invention, have the advantages that
The loudspeaker detection method that the embodiment of the present invention provides, controls audio signal generator and generates the left audio frequency of frequency diverse
Signal and right audio signal, and it is sent respectively to left horn and the right horn of equipment under test, so that left horn sends left sound
Ripple, right horn send right sound wave；And then receive left channel signals by left mike again, and receive right sound by right mike
Road signal；Wherein, described left channel signals is, by described left mike, it is collected the signal that left sound wave is converted, institute
Stating right-channel signals is the converted signal of the right sound wave it collected by described right mike；Finally when judging
State the frequency of left channel signals to belong to interval and described right-channel signals the frequency of described first frequency and belong to described second frequency
Time interval, it determines the left and right loudspeaker of described equipment under test connect instead.The process of the differentiation of this scheme has unified standard, can be accurately
Judge whether the left and right loudspeaker of equipment under test connect instead, and substantial amounts of electronic equipment is carried out being applied to by the method
When whether detection loudspeaker connect anti-application scenarios, detection efficiency is high.
Accompanying drawing explanation
Fig. 1 is the loudspeaker wiring schematic diagram in the electronic equipment of band loudspeaker；
Fig. 2 is the schematic flow sheet of an embodiment of the loudspeaker detection method that the present invention provides；
Fig. 3 is the structural representation of an embodiment of the loudspeaker detecting system that the present invention provides；
Fig. 4 is the structural representation of an embodiment of the loudspeaker polarity devices that the present invention provides.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
Seeing Fig. 2, be the schematic flow sheet of an embodiment of the loudspeaker detection method that the present invention provides, these loudspeaker detect
Method is performed by processor, including step S1 to S5, specific as follows:
S1, controls audio signal generator and generates left audio signal and right audio signal；Wherein, described left audio signal and
Described right audio signal is the waveshape signal of frequency diverse；
S2, controls described audio signal generator and described left audio signal is sent to the left horn of equipment under test and by institute
State right audio signal and be sent to the right horn of described equipment under test, send a left side for described left horn according to described left audio signal
Sound wave, described right horn send right sound wave according to described right audio signal；
S3, receives left channel signals by left mike, and receives right-channel signals by right mike；Wherein, institute
Stating left channel signals is, by described left mike, it is collected the signal that left sound wave is converted, and described right-channel signals is
The signal that the right sound wave that it collected by described right mike is converted；
S4, it is judged that it is interval whether the frequency of described left channel signals belongs to first frequency, and judges that described R channel is believed
Number frequency whether to belong to second frequency interval；Wherein, it is interval that the frequency of described right audio signal belongs to described first frequency, institute
The frequency stating left audio signal belongs to described second frequency interval；Preferably, the frequency of described right audio signal is described first
The intermediate value of frequency separation, the frequency of described left audio signal is the centre that described second frequency is interval.
S5, when the frequency of described left channel signals belongs to described first frequency interval, and the frequency of described right-channel signals
When belonging to described second frequency interval, it determines the left and right loudspeaker of described equipment under test connect instead.
It should be noted that the left and right loudspeaker of equipment under test described herein connect instead, refer to positive pole and the right horn of left horn
Audio input end connects, the positive pole of right horn is connected with left horn audio input end, and the negative pole of left horn and right horn all connects
Ground.
Further, since equipment under test usual band loudspeaker are the most all left and right two loudspeaker, and assembling the mistake of equipment under test
Two loudspeaker of journey middle left and right connect with corresponding left and right two audio input ends, be to be connected by wire, and two wires connected
Cheng Rongyi phase mutual connection is anti-, generally detects that wherein a line connects instead, the most i.e. sentences left and right loudspeaker and connect instead, it may be assumed that when described left sound
It is interval that the frequency of road signal belongs to described first frequency, but the frequency of described right-channel signals is not belonging to described second frequency interval
Time, it determines the left and right loudspeaker of described equipment under test connect instead, and the right horn of described equipment under test is in abnormal operating state；
When the frequency of described left acoustical signal is not belonging to described first frequency interval, but the frequency of described right-channel signals belongs to described second
During frequency separation, the left and right loudspeaker of equipment under test described in difference connect instead, and the left horn of described equipment under test is in improper work
Make state.
Further, described left audio signal and the waveshape signal that described right audio signal is that amplitude is identical, the most described loudspeaker
Detection method also includes that the following sound size judging that left and right loudspeaker are sent is the most normal:
Judge whether the amplitude of described left channel signals and the amplitude of described right-channel signals belong to amplitude interval；Wherein,
It is interval that the amplitude of described left audio signal and described right audio signal belongs to described amplitude；
If it is interval to belong to described amplitude, then differentiate shaking to touch and being in the shape that normally works of described left horn and described right horn
State；
If it is interval that the amplitude of described left channel signals is not belonging to described amplitude, then differentiate that the vibrating diaphragm of described left horn is in non-
Normal operating conditions；
If it is interval that the amplitude of described right-channel signals is not belonging to described amplitude, then differentiate that the vibrating diaphragm of described right horn is in non-
Normal operating conditions.
It should be noted that can be differentiated that by the amplitude judging signal the size of the sound of loudspeaker is the most normal, if sound
Sound is excessive or too small, then the amplitude of signal all can be not belonging to above-mentioned default amplitude interval, and then can go out tested loudspeaker with difference
Vibrating diaphragm be in abnormal operating state.
Further, when gathering, due to mike, the sound wave that loudspeaker send, this sound wave may be by the shadow of outside noise
Ring, then mike is converted into left channel signals and right-channel signals are all band noises, can disturb differentiation result, thus need
Left channel signals and right-channel signals will be carried out noise reduction process, concrete operations are: receiving described left channel signals and institute
After stating right-channel signals, also include performing following operation:
Noise signal is received by noise reduction microphone；Wherein, described noise signal is to be adopted by described noise reduction microphone
The noise signal that the noise sound wave of the surrounding of equipment under test that collection arrives is converted；
According to described noise signal, received described left channel signals and described right-channel signals are dropped respectively
Make an uproar process.
Yet further, described loudspeaker detection method also includes carrying out alert process when detecting exception, particularly as follows:
When the frequency of described left channel signals belongs to described first frequency interval, and the frequency of described right-channel signals belongs to
During described second frequency interval, when the amplitude of described left channel signals is not belonging in described amplitude interval or when described right sound
When the amplitude of road signal is not belonging to described amplitude interval, generate alarm control signal；
Control alarm module according to described alarm control signal and carry out alert process.
It should be noted that this alarm module can be display lamp or buzzer etc.
Further, described loudspeaker detection method also includes:
Described differentiation result is shown in display screen.
Below by use the sine wave signal that left audio signal is as 10000Hz, amplitude is as 1Vrms, the second audio signal
It is whether the sine wave signal of 1Vrms connects to the left and right loudspeaker detecting television set 03 and return as an example for 2500Hz, amplitude, knot
Close the structural representation of an embodiment of the loudspeaker detecting system that Fig. 3 provides, be illustrated:
Step 1: loudspeaker are detected device and tested television set 03 is placed in quiet room, so that the place of loudspeaker detection device
Reason device 01 receives sound (above-mentioned left sound wave and right sound wave) that the loudspeaker of tested television set 03 send by extraneous by mike
Disturb less；The left and right loudspeaker of the correspondence that left and right mike 05 is placed on tested television set 03 are current, in order to gather loudspeaker
The sound sent；It addition, noise reduction microphone to be placed on the top of the loudspeaker axis, left and right of tested television set 03, in order to gather
Environment noise.These loudspeaker detection device includes processor 01, audio signal generator 02, gram mike 04, right mike 05 and
Noise reduction microphone.
Step 2: by the audio input end of the audio signal output end of audio signal generator 02 and television set 03 (such as HDMI
Port or USB port) connect.
Step 3: processor 01 controls that audio signal generator 02 exports 10000Hz, amplitude is the sine wave signal of 1Vrms
Give the left horn of tested television set 03 as left audio signal, and the sine wave signal that output 2500Hz, amplitude are 1Vrms is made
For right audio signal give tested television set 03 right horn, the left horn of tested television set 03 audio signal (if left and right loudspeaker
Connecting normal, this audio signal is left audio signal；If left and right loudspeaker connect returning, this audio signal is right audio signal) effect
Under cause the vibration of diaphragm to send left sound wave, the right horn of tested television set 03 audio signal (if left and right loudspeaker connect just
Often, this audio signal is right audio signal；If left and right loudspeaker connect returning, this audio signal is left audio signal) effect under draw film
The vibration of sheet sends right sound wave.
Step 4: processor 01, while control audio signal generator 02 exports left and right audio signal, controls gram wheat
Gram wind 04 gathers sound that the left horn of tested television set 03 sent, controls right mike 05 and gather the right side of tested television set 03
The sound (sound herein refers to above-mentioned left sound wave and right sound wave) that loudspeaker are sent, and control noise microphone 06 gather
The noise of environment；Left sound wave is converted into left channel signals by left mike 04, and right sound wave is converted into R channel by right mike 05
Signal, noise is converted into noise signal by noise microphone 06.
Step 5: processor 01 carries out noise reduction process according to noise signal to left channel signals and right-channel signals.
Step 6: in judging whether the frequency of described left channel signals belongs to the frequency of described right audio signal as interval
The first frequency of value is interval, and judges whether the frequency of described right-channel signals belongs to and with the frequency of described left audio signal be
The second frequency of interval intermediate value is interval；Differentiate that the left and right loudspeaker of described equipment under test connect instead when judging and being all, and perform step
7；
And, it is judged that whether the amplitude of described left channel signals and the amplitude of described right-channel signals belong to described left sound
Frequently the amplitude of signal is the amplitude interval of intermediate value；If belonging in described amplitude interval, then differentiate described left horn and the described right side
The shaking to touch of loudspeaker is in normal operating conditions；If it is interval that the amplitude of described left channel signals is not belonging to described amplitude, then differentiate institute
The vibrating diaphragm stating left horn is in abnormal operating state, and performs step 7；If the amplitude of described right-channel signals is not belonging to described
Amplitude is interval, then differentiate that the vibrating diaphragm of described right horn is in abnormal operating state, and perform step 7.
Step 7: when the left and right loudspeaker detecting described equipment under test connect inverse time, and processor 01 controls alarm lamp 07
Report to the police, and will differentiate that result shows at display.
The loudspeaker detection method that the embodiment of the present invention provides, controls audio signal generator and generates the left audio frequency of frequency diverse
Signal and right audio signal, and it is sent respectively to left horn and the right horn of equipment under test, so that left horn sends left sound
Ripple, right horn send right sound wave；And then receive left channel signals by left mike again, and receive right sound by right mike
Road signal；Wherein, described left channel signals is, by described left mike, it is collected the signal that left sound wave is converted, institute
Stating right-channel signals is the converted signal of the right sound wave it collected by described right mike；Finally when judging
State the frequency of left channel signals to belong to interval and described right-channel signals the frequency of described first frequency and belong to described second frequency
Time interval, it determines the left and right loudspeaker of described equipment under test connect instead.The process of the differentiation of this scheme has unified standard, can be accurately
Judge whether the left and right loudspeaker of equipment under test connect instead, and substantial amounts of electronic equipment is carried out being applied to by the method
When whether detection loudspeaker connect anti-application scenarios, detection efficiency is high.
See Fig. 4, be the structural representation of an embodiment of the loudspeaker polarity devices that the present invention provides, this detection device
Can realize whole flow processs of loudspeaker detection method that above-described embodiment provides, this detection device is that floppy disk system is arranged on processor and works as
In, these loudspeaker detection device, including:
Audio signal generation module 11, is used for controlling audio signal generator and generates left audio signal and right audio signal；
Wherein, described left audio signal and described right audio signal are the waveshape signal of frequency diverse；
Audio signal sending module 12, be used for controlling described audio signal generator described left audio signal is sent to by
The left horn of measurement equipment and described right audio signal is sent to the right horn of described equipment under test, for described left horn according to
Described left audio signal sends left sound wave, described right horn sends right sound wave according to described right audio signal；
Sound channel signal receiver module 13, for receiving left channel signals by left mike, and is connect by right mike
Receive right-channel signals；Wherein, by described left mike, it to be collected left sound wave converted for described left channel signals
Signal, described right-channel signals is the signal that the right sound wave it collected by described right mike is converted；
Frequency judge module 14, interval for judging whether the frequency of described left channel signals belongs to first frequency, and
Judge whether the frequency of described right-channel signals belongs to second frequency interval；Wherein, the frequency of described right audio signal belongs to institute
Stating first frequency interval, it is interval that the frequency of described left audio signal belongs to described second frequency；
Loudspeaker state discrimination module 15, for belonging to described first frequency interval when the frequency of described left channel signals, and
When the frequency of described right-channel signals belongs to described second frequency interval, it determines the left and right loudspeaker of described equipment under test connect instead.
Further, described left audio signal and the waveshape signal that described right audio signal is that amplitude is identical, the most described loudspeaker
Detection device also includes:
Whether amplitude judge module 16, for judging the amplitude of the amplitude of described left channel signals and described right-channel signals
Belong to amplitude interval；Wherein, the amplitude of described left audio signal and described right audio signal belongs to described amplitude interval；
First vibrating diaphragm discrimination module 17, is used for when the amplitude of described left channel signals and the amplitude of described right-channel signals are equal
When belonging to described amplitude interval, it determines the shaking to touch of described left horn and described right horn is in normal operating conditions；
Second vibrating diaphragm discrimination module 18, for when the amplitude of described left channel signals is not belonging to described amplitude interval, sentences
The vibrating diaphragm of the most described left horn is in abnormal operating state；
3rd vibrating diaphragm discrimination module 19, for when the amplitude of described right-channel signals is not belonging to described amplitude interval, sentences
The vibrating diaphragm of the most described right horn is in abnormal operating state.
Further, described detection device also includes:
Noise Rx module 20, for passing through noise reduction after receiving described left channel signals and described right-channel signals
Mike receives noise signal；Wherein, described noise signal is the equipment under test collected by described noise reduction microphone
The noise signal that the noise sound wave of surrounding is converted；
Noise reduction process module 21, is used for received described left channel signals and the described right side according to described noise signal
Sound channel signal carries out noise reduction process respectively.
Yet further, described loudspeaker detection device also includes:
Warning generation module 22 is for belonging to described first frequency interval when the frequency of described left channel signals and described
It is not belonging to described amplitude district when the frequency of right-channel signals belongs to described second frequency interval, when the amplitude of described left channel signals
Time interior or when the amplitude of described right-channel signals is not belonging to described amplitude interval, generate alarm control signal；
Alarm control module 23, carries out alert process for controlling alarm module according to described alarm control signal.
Further, described loudspeaker detection device also includes:
Display control module 24, for showing described differentiation result in display screen.
The loudspeaker detection method that the embodiment of the present invention provides, controls audio signal generator and generates the left audio frequency of frequency diverse
Signal and right audio signal, and it is sent respectively to left horn and the right horn of equipment under test, so that left horn sends left sound
Ripple, right horn send right sound wave；And then receive left channel signals by left mike again, and receive right sound by right mike
Road signal；Wherein, described left channel signals is, by described left mike, it is collected the signal that left sound wave is converted, institute
Stating right-channel signals is the converted signal of the right sound wave it collected by described right mike；Finally when judging
State the frequency of left channel signals to belong to interval and described right-channel signals the frequency of described first frequency and belong to described second frequency
Time interval, it determines the left and right loudspeaker of described equipment under test connect instead.The process of the differentiation of this scheme has unified standard, can be accurately
Judge whether the left and right loudspeaker of equipment under test connect instead, and substantial amounts of electronic equipment is carried out being applied to by the method
When whether detection loudspeaker connect anti-application scenarios, detection efficiency is high.
One of ordinary skill in the art will appreciate that all or part of flow process realizing in above-described embodiment method, be permissible
Instructing relevant hardware by computer program to complete, described program can be stored in a computer read/write memory medium
In, this program is upon execution, it may include such as the flow process of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic
Dish, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access
Memory, RAM) etc..
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (10)
1. a loudspeaker detection method, it is characterised in that including:
Control audio signal generator and generate left audio signal and right audio signal；Wherein, described left audio signal and the described right side
Audio signal is the waveshape signal of frequency diverse；
Control described audio signal generator and described left audio signal is sent to the left horn of equipment under test and by described right sound
Frequently signal is sent to the right horn of described equipment under test, for described left horn according to described left audio signal send left sound wave,
Described right horn sends right sound wave according to described right audio signal；
Receive left channel signals by left mike, and receive right-channel signals by right mike；Wherein, described L channel
Signal is, by described left mike, it is collected the signal that left sound wave is converted, and described right-channel signals is by the described right side
The signal that right sound wave that it is collected by mike is converted；
Judge whether the frequency of described left channel signals belongs to first frequency interval, and judge the frequency of described right-channel signals
Whether belong to second frequency interval；Wherein, it is interval that the frequency of described right audio signal belongs to described first frequency, described left audio frequency
It is interval that the frequency of signal belongs to described second frequency；
When the frequency of described left channel signals belongs to described first frequency interval, and the frequency of described right-channel signals belongs to described
During second frequency interval, it determines the left and right loudspeaker of described equipment under test connect instead.
2. loudspeaker detection method as claimed in claim 1, it is characterised in that described left audio signal and described right audio signal
For the waveshape signal that amplitude is identical, the most described loudspeaker detection method also includes:
Judge whether the amplitude of described left channel signals and the amplitude of described right-channel signals belong to amplitude interval；Wherein, described
It is interval that the amplitude of left audio signal and described right audio signal belongs to described amplitude；
If it is interval to belong to described amplitude, then differentiate shaking to touch and being in normal operating conditions of described left horn and described right horn；
If it is interval that the amplitude of described left channel signals is not belonging to described amplitude, then differentiate that the vibrating diaphragm of described left horn is in improper
Duty；
If it is interval that the amplitude of described right-channel signals is not belonging to described amplitude, then differentiate that the vibrating diaphragm of described right horn is in improper
Duty.
3. loudspeaker detection method as claimed in claim 1, it is characterised in that receiving described left channel signals and the described right side
After sound channel signal, also include:
Noise signal is received by noise reduction microphone；Wherein, described noise signal is to be collected by described noise reduction microphone
The converted noise signal of the noise sound wave of surrounding of equipment under test；
According to described noise signal, received described left channel signals and described right-channel signals are carried out at noise reduction respectively
Reason.
4. loudspeaker detection method as claimed in claim 2, it is characterised in that described loudspeaker detection method also includes:
When the frequency of described left channel signals belongs to described first frequency interval, and the frequency of described right-channel signals belongs to described
During second frequency interval, when the amplitude of described left channel signals is not belonging in described amplitude interval or when described R channel is believed
Number amplitude when being not belonging to described amplitude interval, generate alarm control signal；
Control alarm module according to described alarm control signal and carry out alert process.
5. the loudspeaker detection method as described in any one of Claims 1-4, it is characterised in that described loudspeaker detection method is also wrapped
Include:
Described differentiation result is shown in display screen.
6. a loudspeaker detection device, it is characterised in that including:
Audio signal generation module, is used for controlling audio signal generator and generates left audio signal and right audio signal；Wherein, institute
State left audio signal and described right audio signal is the waveshape signal of frequency diverse；
Audio signal sending module, is used for controlling described audio signal generator and described left audio signal is sent to equipment under test
Left horn and described right audio signal is sent to the right horn of described equipment under test, for described left horn according to a described left side
Audio signal sends left sound wave, described right horn sends right sound wave according to described right audio signal；
Sound channel signal receiver module, for receiving left channel signals by left mike, and receives right sound by right mike
Road signal；Wherein, described left channel signals is, by described left mike, it is collected the signal that left sound wave is converted, institute
Stating right-channel signals is the converted signal of the right sound wave it collected by described right mike；
Frequency judge module, interval for judging whether the frequency of described left channel signals belongs to first frequency, and judge institute
Whether the frequency stating right-channel signals belongs to second frequency interval；Wherein, the frequency of described right audio signal belongs to described first
Frequency separation, it is interval that the frequency of described left audio signal belongs to described second frequency；
Loudspeaker state discrimination module, for belonging to described first frequency interval, and the described right side when the frequency of described left channel signals
When the frequency of sound channel signal belongs to described second frequency interval, it determines the left and right loudspeaker of described equipment under test connect instead.
7. loudspeaker detection device as claimed in claim 6, it is characterised in that described left audio signal and described right audio signal
For the waveshape signal that amplitude is identical, the most described loudspeaker detection device also includes:
Amplitude judge module, for judging whether the amplitude of described left channel signals and the amplitude of described right-channel signals belong to width
Value interval；Wherein, the amplitude of described left audio signal and described right audio signal belongs to described amplitude interval；
First vibrating diaphragm discrimination module, for belonging to described width when the amplitude of described L channel and the amplitude of described right-channel signals
When value is interval, it determines the shaking to touch of described left horn and described right horn is in normal operating conditions；
Second vibrating diaphragm discrimination module, for when the amplitude of described left channel signals is not belonging to described amplitude interval, it determines described
The vibrating diaphragm of left horn is in abnormal operating state；
3rd vibrating diaphragm discrimination module, for when the amplitude of described right-channel signals is not belonging to described amplitude interval, it determines described
The vibrating diaphragm of right horn is in abnormal operating state.
8. loudspeaker detection device as claimed in claim 6, it is characterised in that described detection device also includes:
Noise Rx module, for passing through noise reduction microphone after receiving described left channel signals and described right-channel signals
Receive noise signal；Wherein, described noise signal is surrounding's ring of the equipment under test collected by described noise reduction microphone
The noise signal that the noise sound wave in border is converted；
Noise reduction process module, for believing received described left channel signals and described R channel according to described noise signal
Number carry out noise reduction process respectively.
9. loudspeaker detection device as claimed in claim 7, it is characterised in that described loudspeaker detection device also includes:
Warning generation module, for belonging to described first frequency interval, and described R channel when the frequency of described left channel signals
When the frequency of signal belongs to described second frequency interval, in the amplitude of described left channel signals is not belonging to described amplitude interval
Time or when the amplitude of described right-channel signals is not belonging to described amplitude interval, generate alarm control signal；
Alarm control module, carries out alert process for controlling alarm module according to described alarm control signal.
10. the loudspeaker detection device as described in any one of claim 6 to 9, it is characterised in that described loudspeaker detection device also wraps
Include:
Display control module, for showing described differentiation result in display screen.
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| CN201610648974.XA CN106211014B (en) | 2016-08-09 | 2016-08-09 | Loudspeaker detection method and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111726740A (en) * | 2019-03-22 | 2020-09-29 | 北京京东尚科信息技术有限公司 | Electronic equipment testing method and device |
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| CN111479207A (en) * | 2020-03-17 | 2020-07-31 | 深圳市金锐显数码科技有限公司 | Crosstalk detection method and system and audio analyzer |
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| JPH07184293A (en) * | 1993-12-24 | 1995-07-21 | Fujitsu Ten Ltd | Automatic phase correction device |
| CN101931851A (en) * | 2009-06-19 | 2010-12-29 | 中山市天键电子工业有限公司 | Polarity testing device of horns |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3959590A (en) * | 1969-01-11 | 1976-05-25 | Peter Scheiber | Stereophonic sound system |
| JPH07184293A (en) * | 1993-12-24 | 1995-07-21 | Fujitsu Ten Ltd | Automatic phase correction device |
| CN101931851A (en) * | 2009-06-19 | 2010-12-29 | 中山市天键电子工业有限公司 | Polarity testing device of horns |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111726740A (en) * | 2019-03-22 | 2020-09-29 | 北京京东尚科信息技术有限公司 | Electronic equipment testing method and device |
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