CN112954574A - Microphone tightness testing method and device - Google Patents
Microphone tightness testing method and device Download PDFInfo
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- CN112954574A CN112954574A CN201911258509.5A CN201911258509A CN112954574A CN 112954574 A CN112954574 A CN 112954574A CN 201911258509 A CN201911258509 A CN 201911258509A CN 112954574 A CN112954574 A CN 112954574A
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- 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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- H04R29/004—Monitoring arrangements; Testing arrangements for microphones
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Abstract
The invention discloses a microphone sealing performance testing method and device, and relates to the technical field of intelligent home. One embodiment of the method comprises: receiving a first sound signal from a first sound source; obtaining a first sound intensity of the first sound signal received by a first microphone and a second sound intensity of the first sound signal received by a second microphone; analyzing the first sound intensity and the second sound intensity to obtain a first test value, and judging whether the first test value meets a test standard value; wherein a sealing material is assembled between the first microphone and a first sound pickup hole corresponding to the first microphone, and wherein a sealing material is not assembled between the second microphone and a second sound pickup hole corresponding to the second microphone. According to the embodiment, the testing error caused by the fact that the sound pick-up hole for shielding the microphone forms the cavity is reduced, and the accuracy of the microphone sealing performance test is improved.
Description
Technical Field
The invention relates to the field of smart home, in particular to a method, a device and a system for testing microphone tightness.
Background
With the development of smart homes, the functions of smart devices are more and more improved. For example, a smart device that is in a sleep state at ordinary times can be woken up by receiving a voice instruction. And users want to be able to wake up the smart device to work to a greater extent. For example, the user returns to home and issues a voice command "please turn on the light". The lamp can be opened far away from the door of the room of the intelligent lamp, and obviously, the intelligent lamp can be opened more conveniently than the intelligent lamp which can be opened by sending a voice command in the middle of the room at a short distance. For another example, when a user has a meal, the user sends a voice instruction "please play music" to a distant smart sound box at a dining table, which is obviously much more convenient than the user who walks to the vicinity of the smart sound box to play music with the voice instruction.
In this case, the wake-up distance of the microphone on the smart device is one of the key indicators affecting the performance of the smart device. The key indicator affecting the wake-up distance of a microphone is the sealing performance of the microphone.
In carrying out the present invention, the inventors have found that the sealing performance of the current test microphone is achieved by assembling a sealing material and then masking the surface of the pilot hole of the microphone with plasticine. The method has some problems, such as inaccurate audio signals and incapability of actually analyzing the sealing effect due to the fact that a cavity is formed by blocking a sound pickup hole of the microphone. In addition, under the condition that the intelligent device is an intelligent sound box, the existing testing method usually uses an external sound source to play sound, and the sealing effect of a microphone of the intelligent sound box cannot be effectively verified.
Disclosure of Invention
In view of this, embodiments of the present invention provide a microphone method, which can avoid forming a cavity formed by blocking a sound pickup hole of a microphone by respectively assembling a sealing material for testing different microphones on an intelligent device, so as to effectively improve accuracy of an obtained audio signal. And the sealing effect of the microphone of the intelligent equipment (such as the intelligent loudspeaker box) is effectively verified by playing the sound by utilizing the internal sound source.
To achieve the above object, according to an aspect of an embodiment of the present invention, there is provided a microphone tightness test method, including:
receiving a first sound signal from a first sound source;
obtaining a first sound intensity of the first sound signal received by a first microphone and a second sound intensity of the first sound signal received by a second microphone; and
analyzing the first sound intensity and the second sound intensity to obtain a first test value, and judging whether the first test value meets a test standard value;
wherein a sealing material is assembled at the first microphone, and
wherein a sealing material is not assembled at the second microphone.
According to an aspect of the embodiments of the present invention, there is provided a microphone tightness test method, wherein the first sound signal is calibrated by:
receiving a second sound signal played by the first sound source; and
adjusting the first sound source to cause the first sound source to play the first sound signal, wherein the first sound signal causes the sound intensity obtained by the sound pressure meter at the first microphone and the second microphone to be initial standard intensity.
According to an aspect of the embodiments of the present invention, there is provided a microphone tightness testing method, characterized in that:
the second sound signal is 0dB of white noise; and
the initial standard intensity is 70db (c).
According to an aspect of the embodiments of the present invention, there is provided a microphone tightness test method, wherein the first test value is a difference between the second sound intensity and the first sound intensity.
According to an aspect of the embodiments of the present invention, there is provided a microphone tightness test method, wherein the first sound intensity is a first average amplitude RMS, and the second sound intensity is a second average amplitude RMS.
According to an aspect of the embodiments of the present invention, there is provided a method for testing microphone sealing performance, wherein the determining whether the first test value meets the test standard value includes:
and judging whether the first test value is greater than or equal to the test standard value.
According to an aspect of an embodiment of the present invention, there is provided a microphone sealing test method, wherein assembling a sealing material at the first microphone includes assembling a sealing material between the first microphone and a first sound pickup hole corresponding to the first microphone
According to an aspect of the embodiments of the present invention, there is provided a method for testing microphone sealing performance, further including:
receiving the first sound signal from the first sound source;
obtaining a third sound intensity of the first sound signal received by the first microphone and a fourth sound intensity of the first sound signal received by the second microphone; and
analyzing the third sound intensity and the fourth sound intensity to obtain a second test value, and judging whether the second test value meets a test standard value;
wherein a sealing material is not assembled at the first microphone, and
wherein a sealing material is assembled at the second microphone.
According to an aspect of the embodiments of the present invention, there is provided a microphone tightness test method, wherein the second test value is a difference between the third sound intensity and the fourth sound intensity.
According to an aspect of the embodiments of the present invention, there is provided a microphone tightness test method, wherein the third sound intensity is a third average amplitude RMS, and the fourth sound intensity is a fourth average amplitude RMS.
According to an aspect of the embodiments of the present invention, there is provided a method for testing microphone sealing performance, wherein the determining whether the second test value meets the test standard value includes:
and judging whether the second test value is greater than or equal to the test standard value.
According to an aspect of the embodiments of the present invention, there is provided a method for testing microphone sealing performance, further including:
comparing the first test value and the second test value to verify a test result.
According to an aspect of the embodiments of the present invention, there is provided a microphone sealing test method, wherein assembling a sealing material at the second microphone includes assembling a sealing material between the second microphone and a second sound pickup hole corresponding to the second microphone.
According to an aspect of the embodiments of the present invention, there is provided a microphone tightness test method, wherein the test standard value is 20 dB.
According to an aspect of the embodiments of the present invention, there is provided a microphone sealing performance testing method, wherein the sealing material is at least one of EVA or Rubber.
According to an aspect of an embodiment of the present invention, there is provided an apparatus for testing microphone sealing performance, including:
the sound receiving module is used for receiving a first sound signal from a first sound source; and
the analysis module is used for obtaining a first sound intensity of the first sound signal received by a first microphone and a second sound intensity of the first sound signal received by a second microphone; analyzing the first sound intensity and the second sound intensity to obtain a first test value, and judging whether the first test value meets a test standard value;
wherein a sealing material is assembled at the first microphone, and
wherein a sealing material is not assembled at the second microphone.
According to an aspect of an embodiment of the present invention, there is provided a microphone tightness test device, wherein the first sound source is located inside or outside the device.
According to an aspect of the embodiments of the present invention, there is provided an apparatus for testing microphone sealing performance, further including:
and the recording module is used for recording the preset time length at the first microphone and the second microphone.
One embodiment of the above invention has the following advantages or benefits: because the technical means of respectively assembling the sealing materials for testing different microphones of the intelligent equipment is adopted, the technical problem of inaccurate analysis caused by the fact that the cavity is formed by shielding the whole microphone is solved, and the technical effect of accurately testing the microphone sealing performance is achieved.
Further effects of the above-mentioned non-conventional alternatives will be described below in connection with the embodiments.
Drawings
The drawings are included to provide a better understanding of the invention and are not to be construed as unduly limiting the invention. Wherein:
fig. 1 is a schematic view of a main flow of a microphone leak test method according to an embodiment of the present invention;
fig. 2 is a schematic diagram of another main flow of a microphone tightness testing method according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of another main flow of a microphone tightness testing method according to an embodiment of the invention;
4-5 are schematic illustrations of assembled microphone sealing materials according to embodiments of the present invention;
fig. 6 is a schematic view of a microphone sealability testing apparatus according to an embodiment of the present invention;
FIG. 7 is a block diagram of a computer system suitable for use with the apparatus for implementing an embodiment of the invention.
Detailed Description
Exemplary embodiments of the present invention are described below with reference to the accompanying drawings, in which various details of embodiments of the invention are included to assist understanding, and which are to be considered as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.
Fig. 1 is a schematic diagram of a main flow of a method of microphone tightness testing according to an embodiment of the present invention, and as shown in fig. 1, the main flow of the method of microphone tightness testing includes steps S101 and S102.
Step S101: and receiving a second sound signal played by the first sound source.
Before starting the test, the sound signal received by the microphone to be tested may be calibrated to ensure the test conditions. The calibration procedure involves first playing 0dB of white noise with the sound source.
When the microphone to be tested is a microphone on the smart sound box, the sound source can be played by the smart sound box, so that the test environment is closer to the real use.
Step S102: adjusting the first sound source to cause the first sound source to play the first sound signal, wherein the first sound signal causes the sound intensity obtained by the sound pressure meter at the first microphone and the second microphone to be initial standard intensity.
In this step, a sound pressure meter is placed at the microphone pick-up aperture to be tested. And adjusting the sound source to enable the microphone pickup hole to be tested to receive the audio signal with certain sound intensity. For example, 70db (c) is used in the embodiment of the present invention.
Through the calibration of the steps S101 and S102, the microphone to be tested is in the required test condition, and the first sound signal meeting the test condition can be received.
Fig. 2 is a schematic diagram of another main flow of a method of microphone tightness testing according to an embodiment of the present invention, and as shown in fig. 2, the main flow of the method of microphone tightness testing includes steps S201, S202, and S203.
Step S201: a first sound signal is received from a first sound source.
In this step, a calibrated first sound signal is received from a first sound source, either external or internal. The calibration procedure is detailed in fig. 1.
Step S202: a first sound intensity of the first sound signal received by a first microphone and a second sound intensity of the first sound signal received by a second microphone are obtained.
Wherein a sealing material is assembled between a first microphone and a first sound pickup hole corresponding to the first microphone, and wherein a sealing material is not assembled between a second microphone and a second sound pickup hole corresponding to the second microphone.
The assembling of the sealing material means that the sealing material is assembled between the microphone and the sound pickup hole. For example, a microphone at location a on the smart device may be assembled with the sealing material and a microphone at location B may remain unassembled with the sealing material. The a and B positions may be any position on the smart device where the microphone is located, such as left and right sides, top and bottom sides, etc. The present embodiment is described by taking microphones on the left and right sides as an example, but the embodiments of the present invention are not limited to this embodiment. The sealing material may be any material capable of achieving microphone sealing, such as EVA or Rubber.
For simplicity of illustration, the smart device is described as having N first microphones on the left side and M second microphones on the right side (the left and right are merely exemplary illustrations of relative positions and do not constitute a limitation on the embodiments of the present invention). Where N is a natural number greater than or equal to 1 and M is a natural number greater than or equal to 1.
N is 1, and M is 1, indicating that a sealing material is interposed between the left microphone and the pickup hole thereof, and that no sealing material is interposed between the right microphone and the pickup hole thereof. The two microphones on the left and right sides receive the first sound signal at the same time. N is 2, M is 2, and means that the sealing material is interposed between the two microphones on the left side and the pickup holes thereof, the sealing material is not interposed between the two microphones on the right side and the pickup holes thereof, and four of the left and right sides simultaneously receive the first audio signal. When the sum of N and M is an odd number, for example, N is 1 and M is 2, a sealing material is interposed between one microphone on the left side and the pickup hole thereof, and a sealing material is not interposed between two microphones on the right side and the pickup hole thereof.
With the sealing material assembled as needed, sound recordings are made at the N first microphones and the M second microphones, respectively, for a predetermined period of time. In the present embodiment, the predetermined time period is, for example, 15 seconds, and other predetermined time periods may be adopted as needed. And then, respectively analyzing the sound recordings by using sound recording software to extract first sound intensity at the N first microphones and second sound intensity at the M second microphones for subsequent analysis. In one embodiment, the sound intensity may be represented by an average amplitude RMS indicator of sound, with a first sound intensity being represented by a first average amplitude RMS and a second sound intensity being represented by a second average amplitude RMS. Other sound intensity indicators may be used to represent sound intensity.
Step S203: and analyzing the first sound intensity and the second sound intensity to obtain a first test value, and judging whether the first test value meets a test standard value.
In this step, a first test value is obtained based on the first sound intensity and the second sound intensity obtained in step S202. In the embodiment where the sound intensity is represented by the average amplitude RMS, the second average amplitude RMS is subtracted from the first average amplitude RMS, and the difference in RMS between the second microphone without the sealing material assembled and the first microphone with the sealing material assembled is obtained as the first test value. If the difference is larger than or equal to the test standard value, the difference is in accordance with the test standard value. In one embodiment, the test standard value may preferably be 20 dB. In other embodiments, the test standard value may be any value that can achieve practical needs, such as 30dB, 10dB, 5dB, etc. That is, the first test value satisfies the following constraint:
unassembled RMS-assembled RMS ≧ 20dB (1)
It should be noted that the values of N and M are only examples, and the number of microphones with and/or without the sealing material assembled in the embodiment of the present invention may be any suitable number according to actual needs. In addition, the left side and the right side are also only examples, and the position of the microphone in the embodiment of the present invention may be any suitable position on the smart device in actual use.
In one embodiment, after step S205, the blocked pick-up holes may be swapped, the test values calculated again, and the two calculated test values compared to verify the results. The specific steps are shown in fig. 3.
Fig. 3 is a schematic diagram of another main flow of a method of microphone sealing test according to an embodiment of the present invention, and as shown in fig. 3, the main flow of the method of microphone sealing test includes steps S301, S302, S303, S304, and S305.
Step S301: the sealing material at the first microphone is removed and the sealing material is assembled at the second microphone.
In this step, an assembly sealing material is exchanged between the N first microphones and the M second microphones. Taking the example where N is 1 and M is 1 as an example, the sealing material is assembled in the first microphone on the left side in the process of fig. 2, and the sealing material is removed from the first microphone on the left side in this step, and the sealing material is assembled in the second microphone on the right side. In the example where N is 2 and M is 2, the sealing material is assembled for the two first microphones on the left side in the procedure of fig. 2, and the sealing material is assembled for the two second microphones on the right side instead in this step.
Step S302: receiving the first sound signal played by the first sound source.
It should be noted that, for the sake of comparison, the first sound signal received in this step is the same as the first sound signal received in the flow of fig. 2. I.e. both sound signals from the same internal or external sound source and calibrated by the procedure of fig. 1.
Step S303: obtaining a third sound intensity of the first sound signal received by the first microphone and a fourth sound intensity of the first sound signal received by the second microphone.
With the sealing material assembled as needed, sound recordings are made at the N first microphones and the M second microphones, respectively, for a predetermined period of time. In the present embodiment, the predetermined time period is, for example, 15 seconds, and other predetermined time periods may be adopted as needed. And then, respectively analyzing the sound recordings by using sound recording software to extract third sound intensities at the N first microphones and fourth sound intensities at the M second microphones for subsequent analysis. In one embodiment, the sound intensity may be represented by an average amplitude RMS index of sound, the third sound intensity by a third average amplitude RMS, and the fourth sound intensity by a fourth average amplitude RMS. Other sound intensity indicators may be used to represent sound intensity.
Step S304: and analyzing the third sound intensity and the fourth sound intensity to obtain a second test value, and judging whether the second test value meets a test standard value.
In this step, a second test value is obtained based on the third sound intensity and the fourth sound intensity obtained in step S303. In the embodiment where the sound intensity is represented by the average amplitude RMS, the third average amplitude RMS and the fourth average amplitude RMS are subtracted, and the difference in RMS of the first microphone without the sealing material assembled and the second microphone with the sealing material assembled is obtained as the second test value. If the difference is larger than or equal to the test standard value, the difference is in accordance with the test standard value. In one embodiment, the test standard value may preferably be 20 dB. In other embodiments, the test standard value may be any value that can achieve practical needs, such as 30dB, 10dB, 5dB, etc. That is, the second test value also satisfies the constraint of equation (1):
unassembled RMS-assembled RMS ≧ 20dB (1).
Preferably, the method further comprises the step S305: comparing the first test value and the second test value to verify a test result.
In this step, the first test value is compared with the second test value to verify the test result. Since the test conditions of the two tests are not changed, the first sound source and the first sound signal are the same, and the two tests are only exchanged to assemble the microphone. Then if the results of the two tests differ significantly, it is evident that a problem has occurred in the testing process and the test needs to be repeated again.
It should be noted that the values of N and M are only examples, and the number of microphones with and/or without the sealing material assembled in the embodiment of the present invention may be any suitable number according to actual needs. In addition, the left side and the right side are also only examples, and the position of the microphone in the embodiment of the present invention may be any suitable position on the smart device in actual use.
Fig. 4-5 illustrate schematic diagrams of a smart device with one microphone on the left and two microphones on the left and right.
As shown in fig. 4, the smart device has a microphone on each of the left and right sides. L is1Denotes the left microphone, microphone L in the flow of FIG. 21A sealing material is assembled; r1The right-hand microphone, the microphone R in the flow of FIG. 21The sealing material is not assembled. In the flow of fig. 3, the microphone L1Without assembling the sealing material, and the microphone R1A sealing material is assembled. In this embodiment, the first test value and the second test value satisfy formula (2):
first test value ═ R1 RMS-L1 RMS；
Second test value ═ L1 RMS-R1 RMS；
As shown in fig. 5, the smart device has two microphones on the left and right sides. L is1And L2Two microphones on the left side are shown, and a sealing material is assembled in the flow of fig. 2; r1And R2The two microphones on the right side are shown, and no sealing material is assembled in the flow of fig. 2. In the flow of fig. 3, the microphone L1And L2Without assembling the sealing material, and the microphone R1And R2Assembled with sealing propertyA material.
In this embodiment, the sound intensity at each microphone is acquired separately and a test value is calculated for each assembled and/or unassembled microphone.
For example, the microphone L1And R1In contrast, the first test value (L)1，R1) Satisfies formula (3):
first test value (L)1，R1)＝R1 RMS-L1 RMS；
Microphone L2And R1In contrast, the first test value (L)2，R1) Satisfies formula (4):
first test value (L)2，R1)＝R1 RMS-L2 RMS；
Microphone L1And R2In contrast, the first test value (L)2，R1) Satisfies formula (5):
first test value (L)1，R2)＝R2 RMS-L1RMS；
Microphone L2And R2In contrast, the first test value (L)2，R2) Satisfies formula (6):
first test value (L)2，R2)＝R2 RMS-L2 RMS。
The calculation method of the second test value is similar to that of the first test value, and is not repeated.
It is to be understood that when any number of microphones are present on the smart device, the test values are calculated by taking the sound intensity at each microphone separately and comparing each assembled and/or unassembled microphone two by two. For example, when N is 1 and M is 2, i.e. a first microphone L1Two second microphones R assembled with a sealing material1And R2In the case of unassembled sealing material, two unassembled second microphones R are used1And R2Respectively with the first microphone L1And (3) comparison:
first test value (L)1，R1)＝R1 RMS-L1 RMS；
First test value (L)1，R2)＝R2 RMS-L1 RMS。。
It should be noted that the above numbers, positions such as left and right sides, identification manners of microphones, and the like are merely examples, and the embodiments of the present invention may be implemented in any other manners according to actual needs.
Fig. 6 is a schematic diagram of main blocks of a microphone seal test apparatus according to an embodiment of the present invention, and as shown in fig. 6, the main blocks of a microphone seal test apparatus 600 include blocks 601, 602, 603, and 604.
The module 601: and the sound receiving module receives a second sound signal played by the first sound source and receives a first sound signal from the first sound source.
A module 602: and the recording module is used for recording sound for a preset time length at the N first microphones and the M second microphones respectively under the condition that the sealing material is assembled as required. The predetermined time period is, for example, 15 seconds.
A module 603: the analysis module is used for extracting a first sound intensity, a second sound intensity, a third sound intensity, a fourth sound intensity and the like from the recording; comparing the first test value and/or the second test value with the test standard value to judge whether the first test value and/or the second test value accords with the test standard value; and the test module is also used for comparing the second test value with the first test value so as to verify the test result. Where the sound intensity may be represented by the average amplitude RMS.
The block 604: and the playing module comprises a first sound source. The playing module can be positioned inside or outside the microphone tightness testing device. In an embodiment where the microphone tightness testing device is located inside the smart device to be tested or is implemented with the smart device to be tested, the playing module is located inside or outside the smart device. When the playing module is located inside the intelligent device, for the microphone on the device to be tested, the microphone is an internal sound source. When the playing module is located outside the intelligent device, the microphone on the device to be tested is an external sound source.
Referring now to FIG. 7, shown is a block diagram of a computer system 700 suitable for use with a terminal device implementing an embodiment of the present invention. The terminal device shown in fig. 7 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiments of the present invention.
As shown in fig. 7, the computer system 700 includes a Central Processing Unit (CPU)701, which can perform various appropriate actions and processes in accordance with a program stored in a Read Only Memory (ROM)702 or a program loaded from a storage section 708 into a Random Access Memory (RAM) 703. In the RAM 703, various programs and data necessary for the operation of the system 700 are also stored. The CPU 701, the ROM 702, and the RAM 703 are connected to each other via a bus 704. An input/output (I/O) interface 705 is also connected to bus 704.
The following components are connected to the I/O interface 705: an input portion 706 including a keyboard, a mouse, and the like; an output section 707 including a display such as a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), and the like, and a speaker; a storage section 708 including a hard disk and the like; and a communication section 709 including a network interface card such as a LAN card, a modem, or the like. The communication section 709 performs communication processing via a network such as the internet. A drive 710 is also connected to the I/O interface 705 as needed. A removable medium 711 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is mounted on the drive 710 as necessary, so that a computer program read out therefrom is mounted into the storage section 708 as necessary.
In particular, according to the embodiments of the present disclosure, the processes described above with reference to the flowcharts may be implemented as computer software programs. For example, embodiments of the present disclosure include a computer program product comprising a computer program embodied on a computer readable medium, the computer program comprising program code for performing the method illustrated in the flow chart. In such an embodiment, the computer program can be downloaded and installed from a network through the communication section 709, and/or installed from the removable medium 711. The computer program performs the above-described functions defined in the system of the present invention when executed by the Central Processing Unit (CPU) 701.
It should be noted that the computer readable medium shown in the present invention can be a computer readable signal medium or a computer readable storage medium or any combination of the two. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples of the computer readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present invention, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In the present invention, however, a computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, fiber optic cable, RF, etc., or any suitable combination of the foregoing.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The modules described in the embodiments of the present invention may be implemented by software or hardware. The described modules may also be provided in a processor, which may be described as: a processor comprises a radio module, a recording module, an analysis module and a playing module. Where the names of the modules do not in some cases constitute a limitation of the module itself, for example, the sound receiving unit may also be described as a "module receiving a first sound signal from a first sound source".
As another aspect, the present invention also provides a computer-readable medium that may be contained in the apparatus described in the above embodiments; or may be separate and not incorporated into the device. The computer readable medium carries one or more programs which, when executed by a device, cause the device to comprise:
receiving a first sound signal from a first sound source;
obtaining a first sound intensity of the first sound signal received by a first microphone and a second sound intensity of the first sound signal received by a second microphone; and
analyzing the first sound intensity and the second sound intensity to obtain a first test value, and judging whether the first test value meets a test standard value;
wherein a sealing material is assembled at the first microphone, and
wherein a sealing material is not assembled at the second microphone.
The first sound signal is calibrated by:
receiving a second sound signal played by the first sound source; and
adjusting the first sound source to cause the first sound source to play the first sound signal, wherein the first sound signal causes the sound intensity obtained by the sound pressure meter at the first microphone and the second microphone to be initial standard intensity.
The judging whether the first test value meets the test standard value comprises:
and judging whether the first test value is greater than or equal to the test standard value.
Receiving the first sound signal from the first sound source;
obtaining a third sound intensity of the first sound signal received by the first microphone and a fourth sound intensity of the first sound signal received by the second microphone; and
analyzing the third sound intensity and the fourth sound intensity to obtain a second test value, and judging whether the second test value meets a test standard value;
wherein a sealing material is not assembled at the first microphone, and
wherein a sealing material is assembled at the second microphone.
Judging whether the second test value meets the test standard value comprises:
and judging whether the second test value is greater than or equal to the test standard value.
According to the technical scheme of the embodiment of the invention, the formation of the cavity formed by shielding the sound pickup hole of the microphone can be avoided by respectively assembling the sealing material for testing different microphones on the intelligent device, so that the accuracy of the obtained audio signal is effectively improved. And the sealing effect of the microphone of the intelligent equipment (such as the intelligent loudspeaker box) is effectively verified by playing the sound by utilizing the internal sound source.
The above-described embodiments should not be construed as limiting the scope of the invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions can occur, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
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