WO2018233251A1 - 无线通信耳机检测装置和方法 - Google Patents
无线通信耳机检测装置和方法 Download PDFInfo
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- WO2018233251A1 WO2018233251A1 PCT/CN2017/117473 CN2017117473W WO2018233251A1 WO 2018233251 A1 WO2018233251 A1 WO 2018233251A1 CN 2017117473 W CN2017117473 W CN 2017117473W WO 2018233251 A1 WO2018233251 A1 WO 2018233251A1
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- wireless communication
- microphone
- speaker
- communication earphone
- earphone
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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
Definitions
- the present invention relates to the field of earphone detection technologies, and in particular, to a wireless communication earphone detection device and method.
- the wireless communication earphone After the wireless communication headset is assembled and before packaging, the performance of the acoustic parameters of the wireless communication headset needs to be confirmed.
- the usual method is to use a receiver to connect the wireless communication headset to the computer, and the computer sounds for listening test.
- the wireless communication earphone includes an earphone housing 1, and the earphone housing 1 is internally provided with a speaker 2, two microphones (a first microphone 3, a second microphone 4). And the circuit board.
- the speaker can only determine whether there is a sound, the final determination of the sound quality cannot be made, and the call microphone cannot be determined at the same time.
- the test of the speaker and the talk microphone separately needs to be performed separately. This test method is complicated, and the test cost is high and the test efficiency is low.
- the present invention provides a new wireless communication earphone testing apparatus and method.
- an object of the present invention is to provide a wireless communication earphone detecting apparatus and method to solve the problems of the current wireless communication earphone testing method being complicated, high in cost, and low in efficiency.
- the invention provides a wireless communication earphone detecting device, wherein the wireless communication earphone to be detected comprises a microphone and a speaker, the wireless communication earphone detecting device comprises a signal converter, a test unit connected with the signal converter, a simulation mouth and an artificial ear, and the simulation The mouth and the artificial ear are both connected to the wireless communication earphone; wherein the artificial mouth is configured to transmit the sound signal emitted by the signal converter to the microphone, The microphone transmits the received sound signal to the speaker; the artificial ear is configured to transmit the sound signal received by the speaker to the signal converter; and the signal converter is configured to convert the sound signal transmitted by the received simulated ear into a digital signal; And a testing unit, configured to determine an acoustic parameter of the wireless communication headset according to the digital signal.
- the wireless communication earphone to be detected comprises a microphone and a speaker
- the wireless communication earphone detecting device comprises a signal converter, a test unit connected with the signal converter, a simulation mouth and an artificial ear, and
- the wireless communication earphone detecting device further includes a protection device connected between the test unit and the wireless communication earphone for protecting the test unit.
- an instruction control unit configured to issue a connection instruction to the protection device and the wireless communication headset, and issue a connection instruction to the microphone and the speaker inside the wireless communication headset.
- the microphone includes a first microphone and a second microphone; the command control unit issues a connection instruction to the first microphone and the second microphone and the speaker, and the first microphone and the second microphone are simultaneously connected to the speaker; or, the command control The unit sends a connection instruction to the first microphone and the speaker, and the first microphone is connected to the speaker; or the command control unit sends a connection instruction to the second microphone and the speaker, and the second microphone is connected to the speaker.
- the signal converter is a sound card, the sound card, the test unit, the protection device and the command control unit are located in the computer.
- the invention also provides a wireless communication earphone detecting method, which uses the wireless communication earphone detecting device to test the wireless communication earphone to be detected, and the specific method comprises: transmitting the sound signal sent by the signal converter to the simulation mouth, and simulating the mouth signal
- the sound signal from the converter is transmitted to the microphone of the wireless communication earphone; the microphone transmits the received sound signal to the speaker of the wireless communication earphone; the speaker transmits the received sound signal to the artificial ear; the simulated ear transmits the received sound signal a signal converter converts the received sound signal into a digital signal;
- the test unit determines an acoustic parameter of the wireless communication earphone according to the digital signal; determines whether the acoustic performance of the wireless communication earphone is qualified according to the acquired acoustic parameter of the wireless communication earphone .
- a preferred solution is to compare the acoustic parameters of the acquired wireless communication earphone with the standard acoustic parameters in the process of determining whether the acoustic performance of the wireless communication earphone is qualified according to the acoustic parameters of the acquired wireless communication earphone, if obtained.
- the acoustic parameters of the wireless communication headset are within the range of standard acoustic parameters, and the acoustic performance of the wireless communication headset is acceptable.
- a preferred solution is to connect the protection device to the wireless communication earphone by the command control unit before the sound signal sent by the signal converter is transmitted to the simulation mouth.
- the microphone of the wireless communication headset includes a first microphone and a second microphone; and the first microphone and the second microphone and the speaker are connected by the instruction control unit, and the first microphone and the second microphone are simultaneously connected to the speaker.
- the acoustic performance test is performed on the first microphone, the second microphone, and the horn of the wireless communication earphone by the wireless communication earphone detecting device described above.
- a preferred solution is that the first microphone and the speaker are connected by the command control unit, and the first microphone is connected to the speaker, and the first microphone and the speaker of the wireless communication earphone are acoustically tested by the wireless communication earphone detecting device. or
- the second microphone and the speaker are connected by the command control unit, and the second microphone is connected to the speaker, and the second microphone and the speaker of the wireless communication earphone are acoustically tested by the wireless communication earphone detecting device.
- the wireless communication earphone detecting device and method provided by the present invention simultaneously test the performance of the wireless communication earphone speaker and the microphone through the dummy mouth and the artificial ear, and the device and the method can improve the accuracy of the test and save the economy. Test time and improve test efficiency.
- FIG. 1 is a schematic structural diagram of a wireless communication earphone detecting apparatus according to an embodiment of the present invention
- FIG. 2 is a schematic structural diagram of a wireless communication earphone according to an embodiment of the present invention.
- FIG. 3 is a schematic structural diagram of a wireless communication earphone PCB board according to an embodiment of the present invention.
- FIG. 4 is a schematic diagram showing a connection structure of a first microphone, a second microphone, and a speaker on a PCB of a wireless communication headset according to an embodiment of the invention
- FIG. 5 is a schematic diagram of a first microphone and speaker connection structure on a PCB of a wireless communication headset according to an embodiment of the invention
- FIG. 6 is a second microphone and speaker connected on a PCB of a wireless communication headset according to an embodiment of the invention. Schematic diagram of the connection structure
- FIG. 7 is a schematic flow chart of a method for detecting a wireless communication headset according to an embodiment of the invention.
- the reference numerals include: 1, earphone housing, 2, speaker, 3, first microphone, 4, second microphone, 5, computer, 6, software protector, 7, wireless communication headset, 8, artificial ear, 9, simulation mouth, 10, sound card, 51, test unit, 52, command control unit.
- the present invention provides a new wireless communication earphone detection device and method, and the detection provided by the present invention is provided for the problem that the existing wireless communication earphone testing method is complicated, high in cost and long in testing time.
- the device and method do not need to separately test the speaker and microphone of the wireless communication earphone to improve the test efficiency.
- the wireless communication earphone of the present invention includes a bluetooth earphone, an infrared wireless earphone, an FM radio frequency wireless earphone, etc., wherein the bluetooth earphone comprises a single ear type blue earphone and a binaural blue earphone, and is divided into a neckline type bluetooth. Headphones, neckband Bluetooth headsets, and true wireless Bluetooth headsets.
- FIG. 1 shows a structure of a wireless communication earphone detecting apparatus according to an embodiment of the present invention.
- the wireless communication earphone detecting apparatus comprises: a computer 5, an interconnected signal converter 10 and a test unit 51 disposed inside the computer 5, a dummy mouth 9 connected to the signal converter 10, and a simulation Ear 8.
- the wireless communication earphone 7 to be detected includes a microphone and a speaker, and the dummy mouth 9 and the dummy ear 8 are both connected to the wireless communication earphone 7.
- the simulation mouth 9 is configured to transmit the sound signal emitted by the signal converter 10 to the microphone of the wireless communication earphone 7, the microphone transmits the received sound signal to the speaker; the artificial ear 8 is used for the speaker of the wireless communication earphone 7
- the received sound signal is transmitted to the signal converter 10; the signal converter 10 is configured to convert the sound signal transmitted by the received artificial ear 8 into a digital signal; the test unit 51 is test software inside the computer 5 for The signal determines the acoustic parameters of the wireless communication headset 7 number.
- the signal converter 10 is a sound card and the sound card 10 is located inside the computer.
- signal converter 10 can also be a stand-alone device rather than being located within a computer.
- the test unit 51 can also be implemented in hardware as a stand-alone device rather than in a computer.
- the wireless communication earphone detecting device further comprises a protection device 6 connected between the test unit 51 and the wireless communication earphone 7 for protecting the test unit 51.
- the protection device 6 can be a software protector.
- an instruction control unit 52 is further disposed inside the computer 5, and the instruction control unit 52 is configured to issue a connection instruction to the software protector 6 and the wireless communication earphone 7 and to the wireless communication earphone before detecting the wireless communication earphone 7 7
- the internal microphone and speaker issue a connection command.
- the microphone of the wireless communication earphone 7 includes a first microphone 3 and a second microphone 4.
- the command control unit 52 can issue a connection instruction to the horn to one or both of the first microphone 3 and the second microphone 4, so that performance testing can be performed only on the microphone and the horn to be detected.
- protection device 6 and command control unit 52 can also be separate devices rather than within a computer.
- FIGS. 3 to 6 respectively exemplify the structure of the wireless communication earphone detecting device from different angles.
- FIG. 3 illustrates a wireless communication headset PCB (Printed Circuit Board) board structure according to an embodiment of the present invention
- FIG. 4 illustrates a first microphone on a wireless communication headset PCB board according to an embodiment of the present invention.
- a second microphone and speaker connection structure
- FIG. 5 shows a first microphone and speaker connection structure on a wireless communication earphone PCB according to an embodiment of the present invention
- FIG. 6 shows a wireless communication earphone PCB according to an embodiment of the present invention.
- the second microphone and the speaker are connected to each other.
- a first microphone 3, a second microphone 4, and a horn 2 are disposed on the wireless communication headphone PCB, and the dots are contacts of the acoustic elements in the PCB circuit board, and the acoustic elements are connected (the first microphone 3, The second microphone 4 and the speaker 2) and the Bluetooth circuit.
- the first microphone 3 and the second microphone 4 can be simultaneously horned by the command control unit. 2 connected; the first microphone 3 and the second microphone 4 receive the sound signal from the artificial mouth and transmit the sound signal to the horn 2; the horn 2 receives the sound signal from the first microphone 3 and the second microphone 4, and transmits the sound signal To the artificial ear, the sound signal that the artificial ear will receive
- the sound card converts the sound signal into a digital signal, and the test unit in the computer processes the digital signal in the sound card to obtain the acoustic parameters of the wireless communication earphone, thereby judging the acoustic performance of the wireless communication earphone.
- first microphone 3 and the second microphone 4 are connected to the four lines of the horn 2, which are solid lines, and the four solid lines are not external lines, and are distributed lines on the PCB of the wireless communication earphone.
- the connection control command may be issued by the command control unit to connect the first microphone 3 and the horn 2 with a solid line.
- the device is connected to the wireless communication earphone, the first microphone 3 receives the sound signal from the artificial mouth, and transmits the sound signal to the speaker 2; the speaker 2 receives the sound signal from the first microphone 3, and transmits the sound signal to the artificial ear, and simulates The sound signal received by the ear is transmitted back to the sound card, and the sound card converts the sound signal into a digital signal.
- the test unit in the computer processes the digital signal in the sound card to obtain the acoustic parameters of the wireless communication earphone, thereby determining the acoustic performance of the wireless communication earphone. .
- the connection command can be issued by the command control unit to connect the second microphone 4 and the horn 2 with a solid line.
- the device is connected to the wireless communication earphone, the second microphone 4 receives the sound signal from the artificial mouth, and transmits the sound signal to the speaker 2; the speaker 2 receives the sound signal from the second microphone 4, and transmits the sound signal to the artificial ear, and simulates After the ear is connected to the sound signal, it is sent back to the sound card, and the sound card converts the sound signal into a digital signal.
- the test unit processes the digital signal to obtain the acoustic parameters of the wireless communication earphone, and determines whether the wireless communication earphone is a qualified product according to the acoustic parameters obtained by the test. .
- the present invention also provides a wireless communication earphone detecting method, and FIG. 7 shows a flow of the wireless communication earphone detecting method according to an embodiment of the present invention.
- the wireless communication earphone detecting method provided by the present invention tests the wireless communication earphone to be detected by using the wireless communication earphone testing device, and the signal converter is a sound card and the protection device is a software protector.
- the specific methods include:
- S740 The speaker transmits the received sound signal to the artificial ear
- S760 the sound card converts the received sound signal into a digital signal
- test unit determines an acoustic parameter of the wireless communication earphone according to the digital signal
- S780 Determine whether the acoustic performance of the wireless communication earphone is qualified according to the acquired acoustic parameters of the wireless communication earphone.
- step S780 in determining whether the acoustic performance of the wireless communication earphone is qualified according to the acoustic parameter of the acquired wireless communication earphone, the acoustic parameters of the acquired wireless communication earphone are The standard acoustic parameters are compared.
- the acoustic performance of the wireless communication earphone is qualified; if the acquired acoustic parameters of the wireless communication earphone are not within the range of standard acoustic parameters Inside, the acoustic performance of the wireless communication earphone is unqualified and belongs to a defective product.
- the software protector is connected to the wireless communication earphone by the instruction control unit, that is, after the software protector is connected with the wireless communication earphone, Then detect the wireless communication headset.
- the microphone of the wireless communication headset includes a first microphone and a second microphone.
- the first microphone, the second microphone, and the speaker may be detected at the same time, or only the first microphone and the speaker may be detected; or only the second microphone and the speaker may be detected.
- the first microphone and the second microphone and the speaker are connected by the instruction control unit, and the first microphone and the second microphone are simultaneously connected with the speaker through a solid line.
- the communication earphone detecting device performs acoustic performance tests on the first microphone, the second microphone, and the speaker of the wireless communication earphone.
- the sound signal sent by the sound card is transmitted to the artificial mouth, the first microphone and the second microphone receive the sound signal emitted by the simulated mouth and transmit the sound signal to the speaker; the speaker receives the sound signal emitted by the first microphone and the second microphone, The sound signal is transmitted to the artificial ear, and the sound signal received by the artificial ear is transmitted back to the sound card, and the sound card converts the sound signal transmitted from the simulated ear into a digital signal, and the test unit processes the digital signal to obtain the acoustic parameter of the wireless communication earphone. According to the acoustic parameters obtained by the test, it is determined whether the wireless communication earphone is a qualified product.
- the acoustic performance of the wireless communication headset is acceptable; if the acoustic parameters of the acquired wireless communication headset are not within the range of standard acoustic parameters, then the wireless communication headset The acoustic performance is unqualified and belongs to a defective product.
- the first microphone and the speaker are connected by the command control unit, and the first microphone and the speaker are connected by a solid line.
- the wireless communication earphone detecting device is connected to the wireless communication earphone. The first microphone and the horn perform acoustic performance testing.
- the sound signal sent by the sound card is transmitted to the artificial mouth
- the first microphone receives the sound signal emitted by the simulated mouth and transmits the sound signal to the speaker
- the speaker receives the sound signal emitted by the first microphone, and transmits the sound signal to the artificial ear.
- the sound signal received by the artificial ear is transmitted back to the sound card
- the sound card converts the sound signal transmitted from the simulated ear into a digital signal
- the test unit processes the digital signal to obtain the acoustic parameters of the wireless communication earphone, and determines the acoustic parameters according to the test. Whether the first microphone and the horn in the wireless communication headset are within the range of standard acoustic parameters.
- the second microphone and the speaker connection command are issued by the command control unit, and the second microphone and the speaker are connected by a solid line.
- the wireless communication earphone detecting device is wirelessly connected. The second microphone of the communication headset and the horn perform acoustic performance testing.
- the sound signal sent by the sound card is transmitted to the artificial mouth
- the second microphone receives the sound signal emitted by the simulated mouth and transmits the sound signal to the speaker
- the speaker receives the sound signal emitted by the second microphone, and transmits the sound signal to the artificial ear
- the sound signal received by the artificial ear is transmitted back to the sound card
- the sound card converts the sound signal transmitted from the simulated ear into a digital signal
- the test unit processes the digital signal to obtain the acoustic parameters of the wireless communication earphone, and determines the acoustic parameters according to the test. Whether the second microphone and the horn of the wireless communication headset are within the range of standard acoustic parameters.
- the wireless communication earphone detecting apparatus and method provided by the present invention simultaneously test the performance of the wireless communication earphone speaker and the microphone through the dummy mouth and the artificial ear, and the device and the method can improve the accuracy of the test. Save test time and improve test efficiency.
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Abstract
本发明提供一种无线通信耳机检测装置,包括信号转换器以及与所述信号转换器连接的测试单元、仿真嘴和仿真耳;其中,仿真嘴,用于将信号转换器发出的声音信号传输到无线通信耳机;仿真耳,用于将无线通信耳机接收到的声音信号传输到信号转换器;信号转换器,用于将接到的仿真耳传输的声音信号转化为数字信号;测试单元,用于根据数字信号确定无线通信耳机的声学参数。利用本发明,能够解决目前无线通信耳机测试方法复杂、成本高以及效率低的问题。本发明还公开了一种采用上述无线通信耳机检测装置进行检测的检测方法。
Description
本发明涉及耳机检测技术领域,更为具体地,涉及一种无线通信耳机检测装置和方法。
在无线通信耳机组装完毕后且包装前,需要对无线通信耳机的声学参数进行性能确认,通常做法是使用接收器进行连接无线通信耳机和电脑,电脑发声进行听音测试。以图2的单无线通信耳机为例,如图2所示,无线通信耳机包括耳机壳体1,耳机壳体1内部设置有喇叭2、两个麦克风(第一麦克风3、第二麦克风4)以及电路板。
在对单无线通信耳机进行测试时,目前的测试方法中,对喇叭只能判定是否有声音,对音质无法进行最终判定,同时对通话麦克风也不能进行判定。若要进行判定此无线通信耳机的声学参数是否准确在框线内,则需要再分别进行喇叭和通话麦克风的测试,这种测试方法复杂,并且测试的成本高,测试效率低。
因此,为解决上述问题,本发明提供一种新的无线通信耳机测试装置和方法。
发明内容
鉴于上述问题,本发明的目的是提供一种无线通信耳机检测装置和方法,以解决目前无线通信耳机测试方法复杂、成本高以及效率低的问题。
本发明提供一种无线通信耳机检测装置,待检测的无线通信耳机包括麦克风和喇叭,所述无线通信耳机检测装置包括信号转换器、与信号转换器连接的测试单元、仿真嘴和仿真耳,仿真嘴和仿真耳均与所述无线通信耳机连接;其中,仿真嘴,用于将信号转换器发出的声音信号传输到麦克风,所述
麦克风将接收到的声音信号传输至喇叭;仿真耳,用于将喇叭接收到的声音信号传输到信号转换器;信号转换器,用于将接到的仿真耳传输的声音信号转化为数字信号;测试单元,用于根据数字信号确定无线通信耳机的声学参数。
此外,优选的方案是,所述无线通信耳机检测装置还包括保护装置,所述保护装置连接在测试单元与无线通信耳机之间,用于保护测试单元。
此外,优选的方案是,还包括指令控制单元,指令控制单元,用于对保护装置与无线通信耳机发出连接指令,以及对无线通信耳机内部的麦克风和喇叭发出连接指令。
此外,优选的方案是,麦克风包括第一麦克风和第二麦克风;指令控制单元对第一麦克风和第二麦克风与喇叭发出连接指令,第一麦克风和第二麦克风同时与喇叭连接;或者,指令控制单元对第一麦克风与喇叭发出连接指令,第一麦克风与喇叭连接;或者,指令控制单元对第二麦克风与喇叭发出连接指令,第二麦克风与喇叭连接。
此外,优选的方案是,所述信号转换器为声卡,声卡、测试单元、保护装置以及指令控制单元位于计算机中。
本发明还提供一种无线通信耳机检测方法,采用上述的无线通信耳机检测装置对待检测的无线通信耳机进行测试,具体方法包括:将信号转换器发出的声音信号传输至仿真嘴,仿真嘴将信号转换器发出的声音信号传输至无线通信耳机的麦克风;麦克风将接收到的声音信号传输至无线通信耳机的喇叭;喇叭将接收到的声音信号传输至仿真耳;仿真耳将接收到的声音信号传输至信号转换器;信号转换器将接收到的声音信号转化为数字信号;测试单元根据数字信号确定无线通信耳机的声学参数;根据获取的无线通信耳机的声学参数判定无线通信耳机的声学性能是否合格。
此外,优选的方案是,在根据获取的无线通信耳机的声学参数判定无线通信耳机的声学性能是否合格的过程中,将获取的无线通信耳机的声学参数与标准的声学参数进行比较,如果获取的无线通信耳机的声学参数在标准的声学参数的范围内,则无线通信耳机的声学性能合格。
此外,优选的方案是,在信号转换器发出的声音信号传输至仿真嘴之前,通过指令控制单元将保护装置与无线通信耳机连接。
此外,优选的方案是,无线通信耳机的麦克风包括第一麦克风和第二麦克风;通过指令控制单元发出第一麦克风、第二麦克风与喇叭连接指令,第一麦克风和第二麦克风同时与喇叭连接,通过上述的无线通信耳机检测装置对无线通信耳机的第一麦克风、第二麦克风以及喇叭进行声学性能测试。
此外,优选的方案是,通过指令控制单元发出第一麦克风与喇叭连接指令,第一麦克风与喇叭连接,通过上述的无线通信耳机检测装置对无线通信耳机的第一麦克风以及喇叭进行声学性能测试,或
通过指令控制单元发出第二麦克风与喇叭连接指令,第二麦克风与喇叭连接,通过上述的无线通信耳机检测装置对无线通信耳机的第二麦克风以及喇叭进行声学性能测试。
从上面的技术方案可知,本发明提供的无线通信耳机检测装置和方法,通过仿真嘴和仿真耳同时测试无线通信耳机喇叭和麦克风的性能,采用此装置和方法,能够提高测试的准确度,节约测试时间,提高测试效率。
为了实现上述以及相关目的,本发明的一个或多个方面包括后面将详细说明的特征。下面的说明以及附图详细说明了本发明的某些示例性方面。然而,这些方面指示的仅仅是可使用本发明的原理的各种方式中的一些方式。此外,本发明旨在包括所有这些方面以及它们的等同物。
通过参考以下结合附图的说明,并且随着对本发明的更全面理解,本发明的其它目的及结果将更加明白及易于理解。在附图中:
图1为根据本发明实施例的无线通信耳机检测装置结构示意图;
图2为根据本发明实施例的无线通信耳机结构示意图;
图3为根据本发明实施例的无线通信耳机PCB板结构示意图;
图4为根据本发明实施例的无线通信耳机PCB板上第一麦克风、第二麦克风与喇叭连接结构示意图;
图5为根据本发明实施例的无线通信耳机PCB板上第一麦克风与喇叭连接结构示意图;
图6为根据本发明实施例的无线通信耳机PCB板上第二麦克风与喇叭连
接结构示意图;
图7为根据本发明实施例的无线通信耳机检测方法流程示意图。
其中的附图标记包括:1、耳机壳体,2、喇叭,3、第一麦克风,4、第二麦克风,5、计算机,6、软件保护器,7、无线通信耳机,8、仿真耳,9、仿真嘴,10、声卡,51、测试单元,52、指令控制单元。
在所有附图中相同的标号指示相似或相应的特征或功能。
在下面的描述中,出于说明的目的,为了提供对一个或多个实施例的全面理解,阐述了许多具体细节。然而,很明显,也可以在没有这些具体细节的情况下实现这些实施例。
针对前述提出的现有的无线通信耳机测试方法复杂、成本高以及测试时间长的问题,为解决此问题,本发明提出了一种新的无线通信耳机检测装置和方法,通过本发明提供的检测装置和方法,不需要分别对无线通信耳机的喇叭和麦克风进行测试,提高测试效率。
其中,需要说明的是,本发明中无线通信耳机包括蓝牙耳机、红外无线耳机、FM射频无线耳机等,其中,蓝牙耳机包括单耳式蓝牙耳机和双耳式蓝牙耳机,分为颈线式蓝牙耳机、颈带式蓝牙耳机以及真无线式蓝牙耳机等。
以下将结合附图对本发明的具体实施例进行详细描述。
为了说明本发明提供的无线通信耳机检测装置的结构,图1示出了根据本发明实施例的无线通信耳机检测装置结构。
如图1所示,本发明提供的无线通信耳机检测装置包括:计算机5、设置在计算机5内部的相互连接的信号转换器10和测试单元51、与信号转换器10连接的仿真嘴9和仿真耳8。待检测的无线通信耳机7包括麦克风和喇叭,仿真嘴9和仿真耳8均与无线通信耳机7连接。
其中,仿真嘴9,用于将信号转换器10发出的声音信号传输到无线通信耳机7的麦克风,麦克风将接收到的声音信号传输至喇叭;仿真耳8,用于将无线通信耳机7的喇叭接收到的声音信号传输到信号转换器10;信号转换器10,用于将接到的仿真耳8传输的声音信号转化为数字信号;测试单元51为计算机5内部的测试软件,用于根据数字信号确定无线通信耳机7的声学参
数。
优选地,信号转换器10为声卡,声卡10位于计算机内部。
或者,信号转换器10也可为独立的器件,而不位于计算机内。测试单元51也可通过硬件实现,为独立的器件,而不位于计算机内。
优选地,无线通信耳机检测装置还包括保护装置6,保护装置6连接在测试单元51与无线通信耳机7之间,用于保护测试单元51。其中,保护装置6可以为软件保护器。
此外,在计算机5内部还设置有指令控制单元52,指令控制单元52,用于在对无线通信耳机7进行检测前,对软件保护器6与无线通信耳机7发出连接指令,以及对无线通信耳机7内部的麦克风和喇叭发出连接指令。优选地,无线通信耳机7的麦克风包括第一麦克风3和第二麦克风4。指令控制单元52可以对第一麦克风3和第二麦克风4中的一个或两个与喇叭发出连接指令,从而可以仅对需要检测的麦克风和喇叭进行性能测试。
类似地,保护装置6和指令控制单元52也可为独立的器件,而不位于计算机内。
为了详细说明无线通信耳机检测装置的结构,图3至图6分别从不同角度对无线通信耳机检测装置的结构进行了示例性标示。具体地,图3示出了根据本发明实施例的无线通信耳机PCB(Printed circuit board,印刷电路板)板结构;图4示出了根据本发明实施例的无线通信耳机PCB板上第一麦克风、第二麦克风与喇叭连接结构;图5示出了根据本发明实施例的无线通信耳机PCB板上第一麦克风与喇叭连接结构;图6示出了根据本发明实施例的无线通信耳机PCB板上第二麦克风与喇叭连接结构。
如图3所示,在无线通信耳机PCB板上设置有第一麦克风3、第二麦克风4以及喇叭2,圆点为PCB电路板中声学元件的触点,连接声学元件(第一麦克风3、第二麦克风4以及喇叭2)和蓝牙电路。
在图4所示的实施例中,在需要对第一麦克风3、第二麦克风4以及喇叭2进行测试时,可以通过指令控制单元发出连接指令使第一麦克风3和第二麦克风4同时与喇叭2连接;第一麦克风3和第二麦克风4接收仿真嘴发出的声音信号并将声音信号传输至喇叭2;喇叭2接收第一麦克风3和第二麦克风4发出的声音信号,并将声音信号传输至仿真耳,仿真耳将接到的声音信号传
回声卡中,声卡将声音信号转换为数字信号,计算机中的测试单元对声卡中的数字信号进行处理获取无线通信耳机的声学参数,从而判断无线通信耳机的声学性能。
其中,需要说明的是,第一麦克风3和第二麦克风4连接喇叭2的四条线,为实线,这四条实线并非外接的线,是无线通信耳机PCB板上的分布的线。
在图5所示的实施例中,在需要对第一麦克风3和喇叭2进行测试时,可以通过指令控制单元发出连接指令使第一麦克风3与喇叭2之间实线连通,此时软件保护器与无线通信耳机连通,第一麦克风3接收仿真嘴发出的声音信号,并将声音信号传输至喇叭2;喇叭2接收第一麦克风3发出的声音信号,并将声音信号传输至仿真耳,仿真耳将接到的声音信号传回声卡中,声卡将声音信号转换为数字信号,计算机中的测试单元对声卡中的数字信号进行处理获取无线通信耳机的声学参数,从而判断无线通信耳机的声学性能。
在图6所示的实施例中,在需要对第二麦克风4和喇叭2进行测试时,可以通过指令控制单元发出连接指令使第二麦克风4与喇叭2之间实线连通,此时软件保护器与无线通信耳机连通,第二麦克风4接收仿真嘴发出的声音信号,并将声音信号传输至喇叭2;喇叭2接收第二麦克风4发出的声音信号,并将声音信号传输至仿真耳,仿真耳接到声音信号后传回声卡中,声卡将声音信号转换为数字信号,测试单元对数字信号进行处理获取无线通信耳机的声学参数,根据测试得到的声学参数判定无线通信耳机的是否为合格产品。
与上述无线通信耳机检测装置相对应,本发明还提供一种无线通信耳机检测方法,图7示出了根据本发明实施例的无线通信耳机检测方法流程。
如图7所示,本发明提供的无线通信耳机检测方法,采用上述的无线通信耳机测试装置对待检测的无线通信耳机进行测试,以其中的信号转换器为声卡、保护装置为软件保护器为例进行说明,具体方法包括:
S710:将声卡发出的声音信号传输至仿真嘴;
S720:仿真嘴将声卡发出的声音信号传输至无线通信耳机的麦克风;
S730:麦克风将接收到的声音信号传输至无线通信耳机的喇叭;
S740:喇叭将接收到的声音信号传输至仿真耳;
S750:仿真耳将接收到的声音信号传输至声卡;
S760:声卡将接收到的声音信号转化为数字信号;
S770:测试单元根据数字信号确定无线通信耳机的声学参数;
S780:根据获取的无线通信耳机的声学参数判定无线通信耳机的声学性能是否合格。
上述为无线通信耳机的检测方法的具体步骤,在步骤S780中,在根据获取的无线通信耳机的声学参数判定无线通信耳机的声学性能是否合格的过程中,将获取的无线通信耳机的声学参数与标准的声学参数进行比较,如果获取的无线通信耳机的声学参数在标准的声学参数的范围内,则无线通信耳机的声学性能合格;如果获取的无线通信耳机的声学参数不在标准的声学参数的范围内,则无线通信耳机的声学性能不合格,属于不良品。
其中,在步骤S710之前,即,在声卡发出的声音信号传输至仿真嘴之前,通过指令控制单元将软件保护器与无线通信耳机连接,也就是说,将软件保护器与无线通信耳机连接后,再对无线通信耳机进行检测。
在本发明的实施中,无线通信耳机的麦克风包括第一麦克风和第二麦克风。在对无线通信耳机进行检测的过程中,可以对同时对第一麦克风、第二麦克风以及喇叭进行检测,也可以只对第一麦克风以及喇叭进行检测;或者只对第二麦克风以及喇叭进行检测。
在本发明一个具体的实施例中,通过指令控制单元发出第一麦克风、第二麦克风与喇叭连接指令,第一麦克风、第二麦克风同时与喇叭之间实线连接,此时,通过上述的无线通信耳机检测装置对无线通信耳机的第一麦克风、第二麦克风以及喇叭进行声学性能测试。
具体地,将声卡发出的声音信号传输至仿真嘴,第一麦克风和第二麦克风接收仿真嘴发出的声音信号并将声音信号传输至喇叭;喇叭接收第一麦克风和第二麦克风发出的声音信号,并将声音信号传输至仿真耳,仿真耳将接到的声音信号传回声卡中,声卡将仿真耳传回的声音信号转换为数字信号,测试单元对数字信号进行处理获取无线通信耳机的声学参数,根据测试得到的声学参数判定无线通信耳机是否是合格产品。如果获取的无线通信耳机的声学参数在标准的声学参数的范围内,则无线通信耳机的声学性能合格;如果获取的无线通信耳机的声学参数不在标准的声学参数的范围内,则无线通信耳机的声学性能不合格,属于不良品。
在本发明的另一具体实施例中,通过指令控制单元发出第一麦克风与喇叭连接指令,第一麦克风与喇叭之间实线连接,此时,通过上述的无线通信耳机检测装置对无线通信耳机的第一麦克风以及喇叭进行声学性能测试。
具体地,将声卡发出的声音信号传输至仿真嘴,第一麦克风接收仿真嘴发出的声音信号并将声音信号传输至喇叭;喇叭接收第一麦克风发出的声音信号,并将声音信号传输至仿真耳,仿真耳将接到的声音信号传回声卡中,声卡将仿真耳传回的声音信号转换为数字信号,测试单元对数字信号进行处理获取无线通信耳机的声学参数,根据测试得到的声学参数判定无线通信耳机中第一麦克风与喇叭是否在标准的声学参数的范围内。
此外,在本发明的另一具体实施例中,通过指令控制单元发出第二麦克风与喇叭连接指令,第二麦克风与喇叭之间实线连接,此时,通过上述的无线通信耳机检测装置对无线通信耳机的第二麦克风以及喇叭进行声学性能测试。
具体地,将声卡发出的声音信号传输至仿真嘴,第二麦克风接收仿真嘴发出的声音信号并将声音信号传输至喇叭;喇叭接收第二麦克风发出的声音信号,并将声音信号传输至仿真耳,仿真耳将接到的声音信号传回声卡中,声卡将仿真耳传回的声音信号转换为数字信号,测试单元对数字信号进行处理获取无线通信耳机的声学参数,根据测试得到的声学参数判定无线通信耳机的第二麦克风与喇叭是否在标准的声学参数的范围内。
通过上述实施方式可以看出,本发明提供的无线通信耳机检测装置和方法,通过仿真嘴和仿真耳同时测试无线通信耳机喇叭和麦克风的性能,采用此装置和方法,能够提高测试的准确度,节约测试时间,提高测试效率。
如上参照附图以示例的方式描述了根据本发明提出的无线通信耳机检测装置和方法。但是,本领域技术人员应当理解,对于上述本发明所提出的无线通信耳机检测装置和方法,还可以在不脱离本发明内容的基础上做出各种改进。因此,本发明的保护范围应当由所附的权利要求书的内容确定。
Claims (10)
- 一种无线通信耳机检测装置,待检测的无线通信耳机包括麦克风和喇叭,其特征在于,所述无线通信耳机检测装置包括信号转换器以及与所述信号转换器连接的测试单元、仿真嘴和仿真耳,所述仿真嘴和所述仿真耳均与所述无线通信耳机连接;其中,所述仿真嘴,用于将所述信号转换器发出的声音信号传输到所述麦克风,所述麦克风将接收到的声音信号传输至所述喇叭;所述仿真耳,用于将所述喇叭接收到的声音信号传输到所述信号转换器;所述信号转换器,用于将接到的所述仿真耳传输的声音信号转化为数字信号;所述测试单元,用于根据所述数字信号确定所述无线通信耳机的声学参数。
- 如权利要求1所述的无线通信耳机检测装置,其特征在于,所述无线通信耳机检测装置还包括保护装置,所述保护装置连接在所述测试单元与所述无线通信耳机之间,用于保护所述测试单元。
- 如权利要求2所述的无线通信耳机检测装置,其特征在于,还包括指令控制单元,所述指令控制单元,用于在对所述无线通信耳机进行检测前对所述保护装置与所述无线通信耳机发出连接指令,以及对所述麦克风和所述喇叭发出连接指令。
- 如权利要求3所述的无线通信耳机检测装置,其特征在于,所述麦克风包括第一麦克风和第二麦克风;所述指令控制单元对所述第一麦克风和所述第二麦克风与所述喇叭发出连接指令,所述第一麦克风和所述第二麦克风同时与所述喇叭连接;或者,所述指令控制单元对所述第一麦克风与所述喇叭发出连接指令,所述第一麦克风与所述喇叭连接;或者,所述指令控制单元对所述第二麦克风与所述喇叭发出连接指令,所述第二麦克风与所述喇叭连接。
- 如权利要求3所述的无线通信耳机检测装置,其特征在于,所述信号转换器为声卡,所述声卡、所述测试单元、所述保护装置以及所述指令控制单元位于计算机中。
- 一种无线通信耳机检测方法,采用如权利要求1至5中任一项所述的无线通信耳机检测装置对待检测的无线通信耳机进行测试,具体方法包括:将信号转换器发出的声音信号传输至仿真嘴;所述仿真嘴将所述信号转换器发出的声音信号传输至所述无线通信耳机的麦克风;所述麦克风将接收到的声音信号传输至所述无线通信耳机的喇叭;所述喇叭将接收到的声音信号传输至仿真耳;所述仿真耳将接收到的声音信号传输至所述信号转换器;所述信号转换器将接收到的声音信号转化为数字信号;测试单元根据所述数字信号确定所述无线通信耳机的声学参数;根据获取的无线通信耳机的声学参数判定所述无线通信耳机的声学性能是否合格。
- 如权利要求6所述的无线通信耳机检测方法,其特征在于,在根据获取的无线通信耳机的声学参数判定所述无线通信耳机的声学性能是否合格的过程中,将获取的无线通信耳机的声学参数与标准的声学参数进行比较,如果获取的无线通信耳机的声学参数在所述标准的声学参数的范围内,则所述无线通信耳机的声学性能合格。
- 如权利要求6所述的无线通信耳机检测方法,其特征在于,在所述信号转换器发出的声音信号传输至所述仿真嘴之前,通过指令控制单元将保护装置与所述无线通信耳机连接。
- 如权利要求8所述的无线通信耳机检测方法,其特征在于,所述无线通信耳机的麦克风包括第一麦克风和第二麦克风;通过所述指令控制单元发出所述第一麦克风、所述第二麦克风与所述喇叭连接指令,所述第一麦克风和所述第二麦克风同时与所述喇叭连接,通过所述无线通信耳机检测装置对所述无线通信耳机的第一麦克风、第二麦克风以及喇叭进行声学性能测试。
- 如权利要求9所述的无线通信耳机检测方法,其特征在于,通过所述指令控制单元发出所述第一麦克风与所述喇叭连接指令,所述第一麦克风与所述喇叭连接,通过所述无线通信耳机检测装置对所述无线通信耳机的第一麦克风以及喇叭进行声学性能测试,或通过所述指令控制单元发出所述第二麦克风与所述喇叭连接指令,所述第二麦克风与所述喇叭连接,通过所述无线通信耳机检测装置对所述无线通信耳机的第二麦克风以及喇叭进行声学性能测试。
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114025273A (zh) * | 2021-11-08 | 2022-02-08 | 深圳市智链信息技术有限公司 | 一种用于蓝牙耳机的对耳调试辅助装置 |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107071683A (zh) * | 2017-06-22 | 2017-08-18 | 歌尔股份有限公司 | 无线通信耳机检测装置和方法 |
CN108391217A (zh) * | 2018-01-18 | 2018-08-10 | 雅刚电子(惠州)有限公司 | 无线耳机自动测试方法及测试*** |
CN108235215B (zh) * | 2018-03-16 | 2024-01-30 | 深圳市指南测控技术有限公司 | 一种线控耳机测试装置及其测试电路 |
WO2019236015A1 (en) * | 2018-06-06 | 2019-12-12 | Pornrojnangkool Tarin | Headphone systems and methods for emulating the audio performance of multiple distinct headphone models |
CN111225332B (zh) * | 2020-01-21 | 2021-03-12 | 深圳市科奈信科技有限公司 | 一种蓝牙耳机的测试方法及*** |
CN111541981B (zh) * | 2020-03-30 | 2021-10-22 | 宇龙计算机通信科技(深圳)有限公司 | 音频处理方法、装置、存储介质及终端 |
CN111491248A (zh) * | 2020-04-07 | 2020-08-04 | 深圳回收宝科技有限公司 | 一种电子产品的音频检测***和音频检测方法 |
CN111526470A (zh) * | 2020-05-16 | 2020-08-11 | 杭州爱宏仪器有限公司 | 基于手持移动端的蓝牙电声器材测量*** |
CN112118525A (zh) * | 2020-09-15 | 2020-12-22 | 杭州兆华电子有限公司 | 一种自动化智能tws蓝牙耳机测试*** |
CN114554384B (zh) * | 2022-04-11 | 2024-03-12 | 深圳市得自在科技有限公司 | 蓝牙耳机抗干扰性能测试*** |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102185949A (zh) * | 2011-05-16 | 2011-09-14 | 杭州厚德通信技术有限公司 | 一种移动通信终端的音频测试***及方法 |
CN102291668A (zh) * | 2011-07-12 | 2011-12-21 | 广州市立伟电子有限公司 | 一种蓝牙耳机成品批量测试方法及*** |
CN102510417A (zh) * | 2011-09-29 | 2012-06-20 | 太仓市同维电子有限公司 | Ip电话终端装置免提音质测试***及其方法 |
CN103179496A (zh) * | 2011-12-20 | 2013-06-26 | 比亚迪股份有限公司 | 移动终端的耳机麦克风和扬声器的音频测试***及方法 |
CN103179495A (zh) * | 2011-12-20 | 2013-06-26 | 比亚迪股份有限公司 | 移动终端的耳机麦克风和听筒的音频测试方法及*** |
CN103260124A (zh) * | 2013-04-12 | 2013-08-21 | 惠州Tcl移动通信有限公司 | 移动终端的音频测试方法及其测试*** |
US20170047059A1 (en) * | 2015-08-11 | 2017-02-16 | Hit Incorporated | Portable hearing test apparatus |
CN107071683A (zh) * | 2017-06-22 | 2017-08-18 | 歌尔股份有限公司 | 无线通信耳机检测装置和方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2362678B1 (en) * | 2010-02-24 | 2017-07-26 | GN Audio A/S | A headset system with microphone for ambient sounds |
CN103188594B (zh) * | 2011-12-28 | 2017-06-06 | 比亚迪股份有限公司 | 一种耳机检测电路及其检测方法 |
CN203747882U (zh) * | 2014-02-10 | 2014-07-30 | 厦门亿联网络技术股份有限公司 | 一种高效检测ip电话音频性能的测试设备 |
CN105657607B (zh) * | 2014-11-15 | 2019-01-08 | 宏碁股份有限公司 | 声音终端装置 |
CN104618846A (zh) * | 2015-02-12 | 2015-05-13 | 歌尔声学股份有限公司 | 一种电子产品扬声器和麦克风测试***及测试方法 |
CN106170108B (zh) * | 2016-09-07 | 2021-05-04 | 合肥中感微电子有限公司 | 具有分贝提醒模式的耳机装置 |
CN106658265B (zh) * | 2017-02-14 | 2023-09-12 | 歌尔股份有限公司 | 降噪耳机以及电子设备 |
CN207531083U (zh) * | 2017-06-22 | 2018-06-22 | 歌尔股份有限公司 | 无线通信耳机检测装置 |
-
2017
- 2017-06-22 CN CN201710481766.XA patent/CN107071683A/zh active Pending
- 2017-12-20 WO PCT/CN2017/117473 patent/WO2018233251A1/zh active Application Filing
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102185949A (zh) * | 2011-05-16 | 2011-09-14 | 杭州厚德通信技术有限公司 | 一种移动通信终端的音频测试***及方法 |
CN102291668A (zh) * | 2011-07-12 | 2011-12-21 | 广州市立伟电子有限公司 | 一种蓝牙耳机成品批量测试方法及*** |
CN102510417A (zh) * | 2011-09-29 | 2012-06-20 | 太仓市同维电子有限公司 | Ip电话终端装置免提音质测试***及其方法 |
CN103179496A (zh) * | 2011-12-20 | 2013-06-26 | 比亚迪股份有限公司 | 移动终端的耳机麦克风和扬声器的音频测试***及方法 |
CN103179495A (zh) * | 2011-12-20 | 2013-06-26 | 比亚迪股份有限公司 | 移动终端的耳机麦克风和听筒的音频测试方法及*** |
CN103260124A (zh) * | 2013-04-12 | 2013-08-21 | 惠州Tcl移动通信有限公司 | 移动终端的音频测试方法及其测试*** |
US20170047059A1 (en) * | 2015-08-11 | 2017-02-16 | Hit Incorporated | Portable hearing test apparatus |
CN107071683A (zh) * | 2017-06-22 | 2017-08-18 | 歌尔股份有限公司 | 无线通信耳机检测装置和方法 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114025273A (zh) * | 2021-11-08 | 2022-02-08 | 深圳市智链信息技术有限公司 | 一种用于蓝牙耳机的对耳调试辅助装置 |
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