WO2020019956A1 - 多麦降噪耳机及方法 - Google Patents

多麦降噪耳机及方法 Download PDF

Info

Publication number
WO2020019956A1
WO2020019956A1 PCT/CN2019/094569 CN2019094569W WO2020019956A1 WO 2020019956 A1 WO2020019956 A1 WO 2020019956A1 CN 2019094569 W CN2019094569 W CN 2019094569W WO 2020019956 A1 WO2020019956 A1 WO 2020019956A1
Authority
WO
WIPO (PCT)
Prior art keywords
microphone
microphones
noise reduction
sound signal
main
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2019/094569
Other languages
English (en)
French (fr)
Inventor
赵燕鹏
徐敏龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Goertek Inc
Original Assignee
Goertek Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Goertek Inc filed Critical Goertek Inc
Priority to US17/259,738 priority Critical patent/US11350209B2/en
Publication of WO2020019956A1 publication Critical patent/WO2020019956A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers
    • H04R3/005—Circuits for transducers for combining the signals of two or more microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1058—Manufacture or assembly
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/326—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only for microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1058—Manufacture or assembly
    • H04R1/1066—Constructional aspects of the interconnection between earpiece and earpiece support
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1058—Manufacture or assembly
    • H04R1/1075—Mountings of transducers in earphones or headphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1008—Earpieces of the supra-aural or circum-aural type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1083—Reduction of ambient noise
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/406—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/10—Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups
    • H04R2201/105—Manufacture of mono- or stereophonic headphone components
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/10—Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups
    • H04R2201/107—Monophonic and stereophonic headphones with microphone for two-way hands free communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/40—Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups
    • H04R2201/401—2D or 3D arrays of transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2430/00—Signal processing covered by H04R, not provided for in its groups
    • H04R2430/20—Processing of the output signals of the acoustic transducers of an array for obtaining a desired directivity characteristic
    • H04R2430/21—Direction finding using differential microphone array [DMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R29/00—Monitoring arrangements; Testing arrangements
    • H04R29/004—Monitoring arrangements; Testing arrangements for microphones
    • H04R29/005—Microphone arrays

Definitions

  • the present application relates to the field of earphone noise reduction, and more particularly, to a multi-mai noise reduction earphone and method.
  • the uplink noise reduction function is mainly to eliminate local environmental noise as much as possible when the user is using the headset to ensure that the voice signal is transmitted as clearly as possible. Peer to ensure call quality.
  • the uplink noise reduction of the headset is mainly implemented by setting a single microphone or a dual microphone in cooperation with a noise reduction algorithm.
  • the general principle of the dual microphones with the noise reduction algorithm is as follows: The dual microphones are close to the target sound source-the user's mouth as the main microphone, and the farther from the user's mouth as the secondary microphone, because there is a certain distance between the primary and secondary microphones. But the distance will not be too far, and the distance between the user's mouth and the main and auxiliary microphones will be much smaller than the distance from the noise source in the surrounding environment to the main and auxiliary microphones.
  • the surrounding environment in the sound signal picked up by the main and auxiliary microphones can be considered There will be no difference in the noise signal, and when the user wears the headset in the normal wearing manner shown in Figure 1, the voice signal in the sound signal picked up by the main and auxiliary microphones will have amplitude difference, time difference and phase difference.
  • the sound signal picked up by the auxiliary microphone is used as the input of the noise reduction algorithm.
  • the noise reduction algorithm is executed, the waveform of the sound signal picked up by the main and auxiliary microphones is analyzed, and the amplitude, time difference or phase of the voice signal in the sound signal picked up by the main and auxiliary microphones is used. Difference (usually using time difference or phase difference) In addition.
  • the noise reduction performance of the dual microphones combined with the noise reduction algorithm largely depends on the locations of the main and auxiliary microphones. Specifically, on the one hand, the distance between the main and auxiliary microphones is relatively long, and usually cannot be less than 20mm. On the other hand, the included angle between the connection between the main microphone and the auxiliary microphone and the connection between the main microphone and the user's mouth should be small enough. Ideally, the included angle is zero, that is, the auxiliary microphone, the main microphone, and the target sound source. The lines of the people form a straight line. In short, if the distance between the main and auxiliary microphones is large and the included angle is small, the noise reduction performance is good.
  • the design of the headset is when the user wears the normal wearing method shown in Figure 1, the auxiliary microphone and the main microphone Make a line with the target sound source.
  • the connection between the main microphone and the auxiliary microphone and the main microphone The angle between the connection with the user's mouth will increase, and the noise reduction performance will decrease.
  • a rotation mechanism such as a rotating shaft is usually provided at the position where the headset body is combined with the headband, so that the headset body can be rotated and tilted within a certain angle, which is convenient for the headset to be worn.
  • this will also form the angle between the connection between the main microphone and the auxiliary microphone and the connection between the main microphone and the user's mouth will increase, and the noise reduction performance will decline.
  • the condition of the body can also be regarded as an abnormal wearing method, but in this case, the angle between the connection between the main microphone and the auxiliary microphone and the connection between the main microphone and the user's mouth is limited. Compared to the abnormal wearing method shown, the impact on noise reduction performance is relatively small.
  • the purpose of this application is to provide a multi-noise noise-reducing earphone and method that can ensure noise-reduction performance, especially when a user wears headphones abnormally.
  • Some embodiments of the present application provide a multi-noise noise-reducing earphone, which includes a headband and a headphone body respectively connected to two ends of the headband, and further includes a microprocessor and at least three arranged on an outer surface of the headphone body. microphone;
  • the microprocessor selects the microphone closest to the target sound source as the primary microphone according to the comparison of the sound signals picked up by the microphones, and selects the microphone that is farthest from the main microphone as the secondary microphone according to the preset relative position of each microphone.
  • the first sound signal picked up by the main microphone and the second sound signal picked up by the auxiliary microphone are input as a noise reduction algorithm, and a noise reduction algorithm is executed to achieve noise reduction.
  • the at least three microphones are respectively disposed on the outer surface edge of the earphone body.
  • the multi-noise noise-reducing earphone includes at least four microphones, and the at least four microphones are evenly distributed on an outer surface edge of the earphone body in a circumferential direction.
  • the microprocessor performs a fusion comparison between the sound signals picked up by the microphones other than the main and auxiliary microphones and the first sound signals picked up by the auxiliary microphones according to the preset relative positions of the microphones to obtain
  • the fused sound signal picked up virtually at the edge of the outer surface of the main body of the earphone body of the extension line connecting the main microphone and the target sound source is input with the first sound signal and the fused sound signal as a noise reduction algorithm.
  • At least one other microphone is arranged near the auxiliary microphone.
  • a method for reducing noise of a mai including:
  • the microphone closest to the target sound source is selected as the primary microphone, and the microphone with the furthest distance from the main microphone is selected as the secondary microphone according to the preset relative position of each microphone.
  • a sound signal and a second sound signal picked up by the auxiliary microphone are input as a noise reduction algorithm, and a noise reduction algorithm is executed to achieve noise reduction.
  • arranging at least three microphones on the outer surface of the earphone body further includes: arranging at least three microphones on the outer surface edge of the earphone body.
  • arranging at least three microphones on the outer surface edge of the earphone body further includes: uniformly arranging at least four microphones on the outer surface edge of the earphone body in the circumferential direction.
  • the method further includes:
  • the sound signals picked up by the microphones other than the main and auxiliary microphones are compared with the first sound signal picked up by the auxiliary microphones according to the preset relative positions of the respective microphones to obtain an extension of the connection between the main microphone and the target sound source.
  • the fused sound signal that is virtually picked up at the edge of the outer surface edge of the earphone body on the line away from the main microphone uses the first sound signal and the fused sound signal as noise reduction algorithms.
  • the technical solution described in this application can ensure the noise reduction performance, especially the noise reduction performance can be ensured when the user wears the headset abnormally.
  • FIG. 1 shows a schematic diagram of a user wearing a headset in a normal wearing manner.
  • FIG. 2 shows a schematic diagram of a user wearing a headset in an abnormal wearing manner.
  • FIG. 3 is a schematic diagram of a user wearing a multi-mode noise reduction earphone provided by an embodiment of the present application in an abnormal wearing manner.
  • FIG. 4 shows a schematic diagram of a Dmai noise reduction headset in an optional implementation manner of the embodiment worn by a user in a normal wearing manner.
  • FIG. 5 shows a schematic diagram of a Dmai noise reduction headset in an optional implementation manner of the embodiment worn by a user in an abnormal wearing manner.
  • FIG. 6 shows a schematic diagram of a Dmai noise reduction headset in another optional implementation manner of the embodiment by a user wearing the normal wearing manner.
  • FIG. 7 is a schematic structural diagram of a microprocessor according to an embodiment of the present application.
  • some embodiments of the present application provide a multi-noise noise-reducing earphone, which includes a headband 10 and a headphone body 20 respectively connected to both ends of the headband 10, and further includes a microprocessor and a headphone body. There are at least three microphones 30 on the outer surface of the microphone, wherein the outer surface of the earphone body is a surface remote from the user.
  • the microprocessor selects the microphone 30 closest to the target sound source as the primary microphone according to the comparison of the sound signals picked up by each microphone 30, and selects the microphone 30 that is the farthest from the main microphone as the secondary microphone according to the preset relative position of each microphone 30 ,
  • the first sound signal picked up by the main microphone and the second sound signal picked up by the auxiliary microphone are input as a noise reduction algorithm, and a noise reduction algorithm is executed to achieve noise reduction.
  • the sound signal picked up by the microphone 30 includes the target sound signal emitted by the target sound source and the noise signal generated by the noise source in the surrounding environment.
  • the comparison of the sound signal picked up by each microphone 30 can be based on the amplitude difference and time difference of the waveform of the sound signal. Compare with one or more of the phase differences.
  • the noise reduction algorithm may adopt various algorithms such as a delay-accumulation method (traditional beam method), an adaptive beam method, and a microphone array method based on post-adaptive filtering, which is not limited in this embodiment.
  • the specific number of the microphones 30 in the multi-noise noise reduction earphone provided in this embodiment is three.
  • the microprocessor is not shown in the figure, and may be provided in the headphone body 20 or in the headband 10.
  • there is also a headset on the market that has only one earphone body 20 connected to one end of the headband 10, which is not limited in this embodiment, and those skilled in the art may choose according to actual needs.
  • the headphone body 20 is respectively connected to both ends of the headband 10
  • noise reduction processing can be performed on the two headphone bodies 20 at the same time or only one headphone body 20 is required to perform noise reduction processing.
  • three microphones 30 can be arranged on the outer surfaces of the two earphone bodies 20 respectively, or three microphones 30 can be arranged on the outer surfaces of only one of the two earphone bodies 20.
  • the at least three microphones 30 provided by this embodiment are arranged with at least three microphones 30, and the microphone 30 closest to the target sound source is selected as the main microphone, and the farthest distance from the main microphone is selected according to the preset relative position of each microphone 30.
  • the microphone 30 is a secondary microphone. Compared with the existing dual microphones, the angle between the connection between the main microphone and the auxiliary microphone and the connection between the main microphone and the target sound source (such as the user's mouth) can be reduced when the user wears it abnormally.
  • the domai noise-reducing earphone provided in this embodiment is applicable to various environments, especially environments with high noise, such as bars, farmers' markets, machinery processing plants, and the like.
  • At least three microphones 30 are respectively disposed on the outer surface edges of the earphone body 20.
  • the distance between the main and auxiliary microphones can be guaranteed to be as far as possible.
  • the two sound signals picked up by the main and auxiliary microphones when the microprocessor executes the noise reduction algorithm are more in line with the theoretical distance of the noise reduction algorithm. Noise performance is better.
  • the multi-noise noise reduction earphone includes at least four microphones 30, and the at least four microphones 30 are evenly distributed on the outer surface of the earphone body 20 in the circumferential direction. edge.
  • the specific number of the microphones 30 in this implementation manner is four.
  • the uniform distribution in the circumferential direction is more conducive to reducing the included angle between the connection between the main and auxiliary microphones and the connection between the main microphone and the target sound source when the user wears it abnormally.
  • the surface is generally roughly square or roughly circular. Therefore, if three microphones 30 are arranged, the three microphones 30 are evenly distributed in the circumferential direction of the edges.
  • each of the microphones 30 can also be arranged in a straight line or an L-shape on the outer surface edge of the earphone body 20.
  • the microprocessor compares the sound signal picked up by the microphones other than the main microphone and the auxiliary microphone with the first sound signal picked up by the auxiliary microphone according to the preset relative position of each microphone 30 Perform a fusion comparison to obtain a virtual picked-up fused sound signal at an edge of the outer surface of the earphone body 20 of the extension line connecting the main microphone and the target sound source, and use the first sound signal and the fused sound signal as Noise reduction algorithm input.
  • the microphone 30 is fixed.
  • the preset relative position is obtained by fusing and comparing the sound signals picked up by other microphones with the first sound signals picked up by the auxiliary microphone, so as to obtain an extension line connecting the main microphone and the target sound source away from the outside of the earphone body 20 of the main microphone.
  • the picked-up fused sound signal at the surface edge position is virtual, and the first sound signal and the fused sound signal are used as noise reduction algorithm inputs to perform a noise reduction algorithm to improve noise reduction performance.
  • the amplitude difference, time difference, or phase difference of the target sound signal emitted by the target sound source among the sound signals picked up by the microphones 30 may be compared, and the amplitude difference, time difference, or phase difference obtained through fusion (usually using the time difference or phase difference) is combined with each
  • the preset relative position of the microphone 30 (the fixed relative distance brought by the fixed preset relative position and the included angle between the fixed adjacent microphones 30) are analyzed to obtain the main microphone and the target sound source.
  • the virtual picked up fused sound signal at the surface edge position uses the first sound signal and the fused sound signal as the noise reduction algorithm input to execute the noise reduction algorithm to improve the noise reduction performance. It should be noted that this implementation mode is more suitable for increasing the case where the included angle between the connection between the main microphone and the auxiliary microphone and the connection between the main microphone and the user's mouth is limited. Noise reduction performance.
  • At least one other microphone is arranged near the auxiliary microphone.
  • the estimated virtual picked-up fused sound signal is more accurate.
  • Some embodiments of the present application provide a method for noise reduction of a mai, including:
  • the microphone closest to the target sound source is selected as the primary microphone, and the microphone with the furthest distance from the main microphone is selected as the secondary microphone according to the preset relative position of each microphone.
  • a sound signal and a second sound signal picked up by the auxiliary microphone are input as a noise reduction algorithm, and a noise reduction algorithm is executed to achieve noise reduction.
  • arranging at least three microphones on the outer surface of the earphone body further includes: arranging at least three microphones on the outer surface edge of the earphone body.
  • arranging at least three microphones on the outer surface edge of the earphone body further includes: uniformly arranging at least four microphones on the outer surface edge of the earphone body in the circumferential direction.
  • the method for noise reduction provided by this embodiment further includes:
  • the sound signals picked up by the microphones other than the main and auxiliary microphones are compared with the first sound signal picked up by the auxiliary microphones according to the preset relative positions of the respective microphones to obtain an extension of the connection between the main microphone and the target sound source.
  • the fused sound signal that is virtually picked up at the edge of the outer surface edge of the earphone body on the line away from the main microphone uses the first sound signal and the fused sound signal as noise reduction algorithms.
  • a computer system suitable for implementing the microprocessor provided in this embodiment includes a central processing unit (CPU), which can be loaded according to a program stored in a read-only memory (ROM) or loaded from a storage part To a program in a random access memory (RAM) to perform various appropriate actions and processes.
  • CPU central processing unit
  • ROM read-only memory
  • RAM random access memory
  • various programs and data required for the operation of the computer system are also stored.
  • the CPU, ROM, and RAM are connected through this bus.
  • An input / input (I / O) interface is also connected to the bus.
  • the following components are connected to the I / O interface: including the input part of the keyboard, mouse, etc .; including the output part such as the liquid crystal display (LCD), etc .; the storage part including the hard disk, etc .; and the network including the LAN card, modem, etc. Communication part of the interface card.
  • the communication section performs communication processing via a network such as the Internet.
  • the drive is also connected to the I / O interface as required. Removable media, such as magnetic disks, optical disks, magneto-optical disks, semiconductor memories, etc., are installed on the drive as needed, so that a computer program read therefrom is installed into the storage section as needed.
  • this embodiment includes a computer program product including a computer program tangibly embodied on a computer-readable medium, the computer program containing program code for executing a method shown in a flowchart.
  • the computer program may be downloaded and installed from a network through a communication section, and / or installed from a removable medium.
  • each block in the flowchart or diagram may represent a module, program segment, or part of code, which contains one or more of the Execute the instruction.
  • the functions noted in the blocks may also occur in a different order than those marked in the drawings. For example, two successively represented boxes may actually be executed substantially in parallel, and they may sometimes be executed in the reverse order, depending on the functions involved.
  • each block in the schematic diagrams and / or flowcharts, and combinations of blocks in the schematic diagrams and / or flowcharts can be implemented by a dedicated hardware-based system that performs the specified function or operation , Or it can be implemented with a combination of dedicated hardware and computer instructions.
  • this embodiment also provides a non-volatile computer storage medium.
  • the non-volatile computer storage medium may be a non-volatile computer storage medium included in the foregoing device in the foregoing embodiment. It may be a non-volatile computer storage medium that exists separately and is not assembled into the terminal.
  • the non-volatile computer storage medium stores one or more programs, and when the one or more programs are executed by one device, the foregoing device is caused to:
  • the microphone closest to the target sound source is selected as the primary microphone, and the microphone with the furthest distance from the main microphone is selected as the secondary microphone according to the preset relative position of each microphone.
  • a sound signal and a second sound signal picked up by the auxiliary microphone are input as a noise reduction algorithm, and a noise reduction algorithm is executed to achieve noise reduction.
  • the terms “installation”, “connected”, and “connected” should be understood in a broad sense, for example, they may be fixed connections, detachable connections, or integral connections; they may be mechanical connections, It can also be an electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements.
  • installation should be understood in a broad sense, for example, they may be fixed connections, detachable connections, or integral connections; they may be mechanical connections, It can also be an electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • General Health & Medical Sciences (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

本申请公开一种多麦降噪耳机及方法。该耳机的一具体实施方式包括头带和分别连接在头带两端的耳机本体，还包括微处理器和布设于耳机本体的外侧表面的至少三个麦克风；微处理器，根据对各麦克风拾取的声音信号的比对选取离目标音源距离最近的麦克风为主麦克风，根据各麦克风的预设相对位置选取离主麦克风距离最远的麦克风为辅麦克风，将主麦克风拾取的第一声音信号和辅麦克风拾取的第二声音信号作为降噪算法输入，执行降噪算法以实现降噪。该实施方式可在用户非正常佩戴耳机的情况下保证降噪性能。

Description

多麦降噪耳机及方法
本申请要求于2018年7月24日提交中国专利局、申请号为201810815645.9、发明名称为“多麦降噪耳机及方法”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及耳机降噪领域，更具体地，涉及一种多麦降噪耳机及方法。
背景技术
现有的耳机，特别是头戴式耳机，一般都具有上行降噪功能，上行降噪功能主要是当用户利用耳机进行通话时，尽量将本地的环境噪声消除，保证语音信号尽量清晰地传递到对端，以保证通话质量。
目前耳机的上行降噪主要通过设置单麦克风或者双麦克风，配合降噪算法来实现。其中，双麦克风配合降噪算法的大致原理如下：双麦克风中靠近目标音源—用户嘴部的作为主麦克风，距用户嘴部较远的作为辅麦克风，由于主、辅麦克风之间存在一定的距离但距离不会太远，且用户嘴部距主、辅麦克风的距离远小于周围环境中的噪声源距主、辅麦克风的距离，因此，可认为主、辅麦克风拾取的声音信号中的周围环境的噪声信号不会存在差异，而当用户以如图1所示的正常佩戴方式佩戴耳机时，主、辅麦克风拾取的声音信号中的语音信号会存在幅度差、时间差和相位差，将主、辅麦克风拾取的声音信号作为降噪算法输入，执行降噪算法，分析主、辅麦克风拾取的声音信号的波形，利用主、辅麦克风拾取的声音信号中的语音信号存在的幅度差、时间差或相位差(通常为利用时间差或相位差)将语音信号与噪声信号，进而对噪声信号进行消除。
双麦克风配合降噪算法的降噪性能很大程度上取决于主、辅麦克风布设的位置。具体而言，一方面是主、辅麦克风之间的距离较远，通常不能小于20mm。另一方面是主麦克风与辅麦克风之间连线和主麦克风与用户嘴部之间连线的夹角应足够小，理想情况是该夹角为零，即辅麦克风、主麦克风和目 标音源三者的连线成一条直线。总之，主、辅麦克风之间的距离大，上述夹角小，则降噪性能好。
关于主麦克风与辅麦克风之间连线和主麦克风与用户嘴部之间连线的夹角，耳机的设计都是在用户以如图1所示的正常佩戴方式佩戴时，辅麦克风、主麦克风和目标音源三者的连线成一条直线。但是，由于过久佩戴耳机会引起疲劳、不舒服的感觉等原因，用户常常会以如图2所示的非正常佩戴方式佩戴耳机，此时，主麦克风与辅麦克风之间连线和主麦克风与用户嘴部之间连线的夹角会增大，降噪性能下降。另外，为解决佩戴舒适性和不同人群头部特性的问题，在耳机本体与头带结合的位置通常会设置转轴等转动机构，使耳机本体能够在一定的角度内旋转和倾斜，便于耳机在佩戴时能够尽量与用户头部贴合，这也会形成主麦克风与辅麦克风之间连线和主麦克风与用户嘴部之间连线的夹角会增大，降噪性能下降，这种转动耳机本体的情况，也可以视为非正常佩戴方式，只是这种情况下主麦克风与辅麦克风之间连线和主麦克风与用户嘴部之间连线的夹角增大的幅度有限，与图2所示的非正常佩戴方式相比，对降噪性能的影响相对较小。
因此，需要提供一种可保证降噪性能，特别是可在用户非正常佩戴耳机的情况下保证降噪性能的多麦降噪耳机及方法。
发明内容
本申请的目的在于提供一种可保证降噪性能，特别是可在用户非正常佩戴耳机的情况下保证降噪性能的多麦降噪耳机及方法。
为达到上述目的，本申请采用下述技术方案：
本申请一些实施例提供了一种多麦降噪耳机，包括头带和分别连接在所述头带两端的耳机本体，还包括微处理器和布设于所述耳机本体的外侧表面的至少三个麦克风；
所述微处理器，根据对各麦克风拾取的声音信号的比对选取离目标音源距离最近的麦克风为主麦克风，根据各麦克风的预设相对位置选取离主麦克风距离最远的麦克风为辅麦克风，将主麦克风拾取的第一声音信号和辅麦克风拾取的第二声音信号作为降噪算法输入，执行降噪算法以实现降噪。
一些实施例中，所述至少三个麦克风分别布设于所述耳机本体的外侧表 面边缘。
一些实施例中，该多麦降噪耳机包括至少四个麦克风，所述至少四个麦克风周向均布于所述耳机本体的外侧表面边缘。
一些实施例中，所述微处理器，将除主、辅麦克风之外的其他麦克风拾取的声音信号与辅麦克风拾取的第一声音信号依据各麦克风的预设相对位置进行融合比对，以得到主麦克风与目标音源之间连线的延长线上远离主麦克风的耳机本体的外侧表面边缘位置的虚拟拾取的融合声音信号，将第一声音信号和融合声音信号作为降噪算法输入。
一些实施例中，所述辅麦克风附近布设有至少一个其他麦克风。
本申请一些实施例中提供了一种多麦降噪方法，包括：
在耳机本体的外侧表面布设至少三个麦克风；
根据对各麦克风拾取的声音信号的比对选取离目标音源距离最近的麦克风为主麦克风，根据各麦克风的预设相对位置选取离主麦克风距离最远的麦克风为辅麦克风，将主麦克风拾取的第一声音信号和辅麦克风拾取的第二声音信号作为降噪算法输入，执行降噪算法以实现降噪。
一些实施例中，所述在耳机本体的外侧表面布设至少三个麦克风进一步包括：在耳机本体的外侧表面边缘布设至少三个麦克风。
一些实施例中，所述在耳机本体的外侧表面边缘布设至少三个麦克风进一步包括：在耳机本体的外侧表面边缘周向均布至少四个麦克风。
一些实施例中，该方法进一步包括：
将除主、辅麦克风之外的其他麦克风拾取的声音信号与辅麦克风拾取的第一声音信号依据各麦克风的预设相对位置进行融合比对，以得到主麦克风与目标音源之间连线的延长线上远离主麦克风的耳机本体的外侧表面边缘位置的虚拟拾取的融合声音信号，将第一声音信号和融合声音信号作为降噪算法输入。
本申请的有益效果如下：
本申请所述技术方案可保证降噪性能，特别是可在用户非正常佩戴耳机的情况下保证降噪性能。
附图说明
下面结合附图对本申请的具体实施方式作进一步详细的说明；
图1示出用户以正常佩戴方式佩戴耳机的示意图。
图2示出用户以非正常佩戴方式佩戴耳机的示意图。
图3示出用户以非正常佩戴方式佩戴本申请实施例提供的多麦降噪耳机的示意图。
图4示出用户以正常佩戴方式佩戴本实施例的可选的实现方式中多麦降噪耳机的示意图。
图5示出用户以非正常佩戴方式佩戴本实施例的可选的实现方式中多麦降噪耳机的示意图。
图6示出用户以正常佩戴方式佩戴本实施例的另一可选的实现方式中多麦降噪耳机的示意图。
图7示出本申请实施例提供的微处理器的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
如图3所示，本申请的一些实施例中提供了一种多麦降噪耳机，包括头带10和分别连接在头带10两端的耳机本体20，还包括微处理器和布设于耳机本体的外侧表面的至少三个麦克风30，其中，耳机本体的外侧表面为远离用户的表面。
微处理器根据对各麦克风30拾取的声音信号的比对选取离目标音源距离最近的麦克风30为主麦克风，根据各麦克风30的预设相对位置选取离主麦克风距离最远的麦克风30为辅麦克风，将主麦克风拾取的第一声音信号和辅麦克风拾取的第二声音信号作为降噪算法输入，执行降噪算法以实现降噪。
其中，麦克风30拾取的声音信号包括目标音源发出的目标声音信号和周围环境中的噪声源产生的噪声信号，对各麦克风30拾取的声音信号的比对可依据声音信号的波形的幅度差、时间差和相位差中的一种或几种进行比对。 降噪算法可采用延迟-累加法(传统波束法)、自适应波束法和基于后置自适应滤波的麦克风阵列法等多种算法，本实施例对此不做限定。
如图3所示，本实施例提供的多麦降噪耳机中麦克风30的具体数量为三个。微处理器未在图中示出，其可设于耳机本体20中，也可设于头带10中。另外，目前市场上也有一种只在头带10的一端连接一个耳机本体20的头戴式耳机，本实施例对此不做限定，本领域技术人员可根据实际需要进行选择。本领域技术人员可以理解的是，如果头带10两端分别连接有耳机本体20，则可根据需要同时对两个耳机本体20进行降噪处理或只需要对一个耳机本体20进行降噪处理的不同需求，分别可采用在两个耳机本体20的外侧表面分别布设三个麦克风30，或只在两个耳机本体20其中之一的外侧表面布设三个麦克风30的方式。
本实施例提供的多麦降噪耳机，布设至少三个麦克风30，且采用上述选取离目标音源距离最近的麦克风30为主麦克风，根据各麦克风30的预设相对位置选取离主麦克风距离最远的麦克风30为辅麦克风的方式。相比于现有的双麦克风，可以在用户非正常佩戴的情况下，使得主麦克风与辅麦克风之间连线和主麦克风与目标音源(例如用户嘴部)之间连线的夹角减小，或者说将辅麦克风近似布设在用于拾取目标音源发出的目标声音信号的主麦克风和目标音源之间连线的延长线上(最理想的情况是辅麦克风、主麦克风和目标音源三者的连线成一条直线)，微处理器执行降噪算法时依据的主、辅麦克风拾取的两个声音信号与降噪算法的理论角度更契合，降噪性能更好。本实施例提供的多麦降噪耳机适用于各种环境，特别是噪音较大的环境，例如酒吧、农贸市场、机械加工厂等。
在本实施例的一些可选的实现方式中，至少三个麦克风30分别布设于耳机本体20的外侧表面边缘。采用此实现方式，可保证主、辅麦克风之间的距离尽可能远，微处理器执行降噪算法时依据的主、辅麦克风拾取的两个声音信号与降噪算法的理论距离更契合，降噪性能更好。
在本实施例的一些可选的实现方式中，如图4和图5共同所示，该多麦降噪耳机包括至少四个麦克风30，至少四个麦克风30周向均布于耳机本体20的外侧表面边缘。本实现方式中麦克风30的具体数量为四个。采用此实现方式，周向均布更利于在用户非正常佩戴的情况下，使得主、辅麦克风之间连线与 主麦克风、目标音源之间连线的夹角减小，另外，由于耳机主体的外侧表面通常为大致方形或大致圆形，因此，如果布设三个麦克风30则三个麦克风30在边缘周向均布无法实现在用户正常佩戴的情况下使得主、辅麦克风之间连线与主麦克风、目标音源之间连线的夹角为零，因此本实现方式中布设至少四个麦克风30。可以理解的是，各麦克风30也可呈直线或L型布于耳机本体20的外侧表面边缘。
在本实施例的一些可选的实现方式中，微处理器，将除主、辅麦克风之外的其他麦克风拾取的声音信号与辅麦克风拾取的第一声音信号依据各麦克风30的预设相对位置进行融合比对，以得到主麦克风与目标音源之间连线的延长线上远离主麦克风的耳机本体20的外侧表面边缘位置的虚拟拾取的融合声音信号，将第一声音信号和融合声音信号作为降噪算法输入。采用此实现方式，可在用户非正常佩戴的情况下，主、辅麦克风之间连线与主麦克风、目标音源之间连线的夹角无法近似为零时，依据各麦克风30固定不变的预设相对位置通过将其他麦克风拾取的声音信号与辅麦克风拾取的第一声音信号进行融合比对，以得到主麦克风与目标音源之间连线的延长线上远离主麦克风的耳机本体20的外侧表面边缘位置的虚拟拾取的融合声音信号，利用第一声音信号和融合声音信号作为降噪算法输入执行降噪算法，提升降噪性能。具体可为比对各麦克风30拾取的声音信号中的目标音源发出的目标声音信号的幅度差、时间差或相位差，融合得到的幅度差、时间差或相位差(通常利用时间差或相位差)结合各麦克风30的预设相对位置(由固定不变的预设相对位置带来的固定不变的相对距离和固定不变的相邻麦克风30连线的夹角)进行分析，得到主麦克风与目标音源之间连线的延长线、耳机本体20的外侧表面上各位置的估算声音信号波形等信息，从而估算得到主麦克风与目标音源之间连线的延长线上远离主麦克风的耳机本体20的外侧表面边缘位置的虚拟拾取的融合声音信号(或者称为该位置的估算声音信号)，利用第一声音信号和融合声音信号作为降噪算法输入执行降噪算法，提升降噪性能。需要说明的是，该实现方式更适于在转动耳机本体20，主麦克风与辅麦克风之间连线和主麦克风与用户嘴部之间连线的夹角增大的幅度有限的情况下，提升降噪性能。
在本实施例的一些可选的实现方式中，如图6所示，辅麦克风附近布设有 至少一个其他麦克风。采用此实现方式，估算得到的虚拟拾取的融合声音信号更精确。
本申请的一些实施例提供了一种多麦降噪方法，包括：
在耳机本体的外侧表面布设至少三个麦克风；
根据对各麦克风拾取的声音信号的比对选取离目标音源距离最近的麦克风为主麦克风，根据各麦克风的预设相对位置选取离主麦克风距离最远的麦克风为辅麦克风，将主麦克风拾取的第一声音信号和辅麦克风拾取的第二声音信号作为降噪算法输入，执行降噪算法以实现降噪。
在本实施例的一些可选的实现方式中，在耳机本体的外侧表面布设至少三个麦克风进一步包括：在耳机本体的外侧表面边缘布设至少三个麦克风。
在本实施例的一些可选的实现方式中，在耳机本体的外侧表面边缘布设至少三个麦克风进一步包括：在耳机本体的外侧表面边缘周向均布至少四个麦克风。
在本实施例的一些可选的实现方式中，本实施例提供的多麦降噪方法进一步包括：
将除主、辅麦克风之外的其他麦克风拾取的声音信号与辅麦克风拾取的第一声音信号依据各麦克风的预设相对位置进行融合比对，以得到主麦克风与目标音源之间连线的延长线上远离主麦克风的耳机本体的外侧表面边缘位置的虚拟拾取的融合声音信号，将第一声音信号和融合声音信号作为降噪算法输入。
需要说明的是，本实施例提供的多麦降噪方法与前述实施例提供的多麦降噪耳机的原理及工作流程相似，相关之处可以参照上述说明，在此不再赘述。
如图7所示，适于用来实现本实施例提供的微处理器的计算机系统，包括中央处理单元(CPU)，其可以根据存储在只读存储器(ROM)中的程序或者从存储部分加载到随机访问存储器(RAM)中的程序而执行各种适当的动作和处理。在RAM中，还存储有计算机系统操作所需的各种程序和数据。CPU、ROM以及RAM通过总线被此相连。输入/输入(I/O)接口也连接至总线。
以下部件连接至I/O接口:包括键盘、鼠标等的输入部分；包括诸如液晶 显示器(LCD)等以及扬声器等的输出部分；包括硬盘等的存储部分；以及包括诸如LAN卡、调制解调器等的网络接口卡的通信部分。通信部分经由诸如因特网的网络执行通信处理。驱动器也根据需要连接至I/O接口。可拆卸介质，诸如磁盘、光盘、磁光盘、半导体存储器等等，根据需要安装在驱动器上，以便于从其上读出的计算机程序根据需要被安装入存储部分。
特别地，根据本实施例，上文流程图描述的过程可以被实现为计算机软件程序。例如，本实施例包括一种计算机程序产品，其包括有形地包含在计算机可读介质上的计算机程序，上述计算机程序包含用于执行流程图所示的方法的程序代码。在这样的实施例中，该计算机程序可以通过通信部分从网络上被下载和安装，和/或从可拆卸介质被安装。
附图中的流程图和示意图，图示了本实施例的系统、方法和计算机程序产品的可能实现的体系架构、功能和操作。在这点上，流程图或示意图中的每个方框可以代表一个模块、程序段或代码的一部分，上述模块、程序段或代码的一部分包含一个或多个用于实现规定的逻辑功能的可执行指令。也应当注意，在有些作为替换的实现中，方框中所标注的功能也可以以不同于附图中所标注的顺序发生。例如，两个接连地表示的方框实际上可以基本并行地执行，它们有时也可以按相反的顺序执行，这依所涉及的功能而定。也要注意的是，示意图和/或流程图中的每个方框、以及示意和/或流程图中的方框的组合，可以用执行规定的功能或操作的专用的基于硬件的系统来实现，或者可以用专用硬件与计算机指令的组合来实现。
作为另一方面，本实施例还提供了一种非易失性计算机存储介质，该非易失性计算机存储介质可以是上述实施例中上述装置中所包含的非易失性计算机存储介质，也可以是单独存在，未装配入终端中的非易失性计算机存储介质。上述非易失性计算机存储介质存储有一个或者多个程序，当上述一个或者多个程序被一个设备执行时，使得上述设备：
根据对各麦克风拾取的声音信号的比对选取离目标音源距离最近的麦克风为主麦克风，根据各麦克风的预设相对位置选取离主麦克风距离最远的麦克风为辅麦克风，将主麦克风拾取的第一声音信号和辅麦克风拾取的第二声音信号作为降噪算法输入，执行降噪算法以实现降噪。
在本申请的描述中，需要说明的是，术语“上”、“下”等指示的方位 或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
还需要说明的是，在本申请的描述中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
显然，本申请的上述实施例仅仅是为清楚地说明本申请所作的举例，而并非是对本申请的实施方式的限定，对于本领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动，这里无法对所有的实施方式予以穷举，凡是属于本申请的技术方案所引伸出的显而易见的变化或变动仍处于本申请的保护范围之列。

Claims (10)

  1. 一种多麦降噪耳机，包括头带和分别连接在所述头带两端的耳机本体，其特征在于，还包括微处理器和布设于所述耳机本体的外侧表面的至少三个麦克风；
    所述微处理器，根据对各麦克风拾取的声音信号的比对选取离目标音源距离最近的麦克风为主麦克风，根据各麦克风的预设相对位置选取离主麦克风距离最远的麦克风为辅麦克风，将主麦克风拾取的第一声音信号和辅麦克风拾取的第二声音信号作为降噪算法输入，执行降噪算法以实现降噪。
  2. 根据权利要求1所述的多麦降噪耳机，其特征在于，所述至少三个麦克风分别布设于所述耳机本体的外侧表面边缘。
  3. 根据权利要求2所述的多麦降噪耳机，其特征在于，该多麦降噪耳机包括至少四个麦克风，所述至少四个麦克风周向均布于所述耳机本体的外侧表面边缘。
  4. 根据权利要求2所述的多麦降噪耳机，其特征在于，所述微处理器，将除主、辅麦克风之外的其他麦克风拾取的声音信号与辅麦克风拾取的第一声音信号依据各麦克风的预设相对位置进行融合比对，以得到主麦克风与目标音源之间连线的延长线上远离主麦克风的耳机本体的外侧表面边缘位置的虚拟拾取的融合声音信号，将第一声音信号和融合声音信号作为降噪算法输入。
  5. 根据权利要求4所述的多麦降噪耳机，其特征在于，所述辅麦克风附近布设有至少一个其他麦克风。
  6. 根据权利要求3所述的多麦降噪耳机，其特征在于，所述微处理器，将除主、辅麦克风之外的其他麦克风拾取的声音信号与辅麦克风拾取的第一声音信号依据各麦克风的预设相对位置进行融合比对，以得到主麦克风与目标音源之间连线的延长线上远离主麦克风的耳机本体的外侧表面边缘位置的虚拟拾取的融合声音信号，将第一声音信号和融合声音信号作为降噪算法输入。
  7. 一种多麦降噪方法，其特征在于，包括：
    在耳机本体的外侧表面布设至少三个麦克风；
    根据对各麦克风拾取的声音信号的比对选取离目标音源距离最近的麦克 风为主麦克风，根据各麦克风的预设相对位置选取离主麦克风距离最远的麦克风为辅麦克风，将主麦克风拾取的第一声音信号和辅麦克风拾取的第二声音信号作为降噪算法输入，执行降噪算法以实现降噪。
  8. 根据权利要求7所述的多麦降噪方法，其特征在于，所述在耳机本体的外侧表面布设至少三个麦克风进一步包括：在耳机本体的外侧表面边缘布设至少三个麦克风。
  9. 根据权利要求8所述的多麦降噪方法，其特征在于，所述在耳机本体的外侧表面边缘布设至少三个麦克风进一步包括：在耳机本体的外侧表面边缘周向均布至少四个麦克风。
  10. 根据权利要求7-9中任一项所述的多麦降噪方法，其特征在于，该方法进一步包括：
    将除主、辅麦克风之外的其他麦克风拾取的声音信号与辅麦克风拾取的第一声音信号依据各麦克风的预设相对位置进行融合比对，以得到主麦克风与目标音源之间连线的延长线上远离主麦克风的耳机本体的外侧表面边缘位置的虚拟拾取的融合声音信号，将第一声音信号和融合声音信号作为降噪算法输入。
PCT/CN2019/094569 2018-07-24 2019-07-03 多麦降噪耳机及方法 Ceased WO2020019956A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US17/259,738 US11350209B2 (en) 2018-07-24 2019-07-03 Noise reduction headset having multi-microphone and noise reduction method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810815645.9 2018-07-24
CN201810815645.9A CN108696785B (zh) 2018-07-24 2018-07-24 多麦降噪耳机及方法

Publications (1)

Publication Number Publication Date
WO2020019956A1 true WO2020019956A1 (zh) 2020-01-30

Family

ID=63850791

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/094569 Ceased WO2020019956A1 (zh) 2018-07-24 2019-07-03 多麦降噪耳机及方法

Country Status (3)

Country Link
US (1) US11350209B2 (zh)
CN (1) CN108696785B (zh)
WO (1) WO2020019956A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114255733A (zh) * 2021-12-21 2022-03-29 中国空气动力研究与发展中心低速空气动力研究所 自噪声掩蔽系统及飞行设备

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108696785B (zh) * 2018-07-24 2019-10-29 歌尔股份有限公司 多麦降噪耳机及方法
CN109243456A (zh) * 2018-11-05 2019-01-18 珠海格力电器股份有限公司 一种控制设备的方法和设备
GB2580944B (en) 2019-01-31 2021-07-07 Dyson Technology Ltd Noise control
GB2582372B (en) 2019-03-22 2021-08-18 Dyson Technology Ltd Noise control
GB2582373B (en) * 2019-03-22 2021-08-11 Dyson Technology Ltd Noise control
GB2582374B (en) 2019-03-22 2021-08-18 Dyson Technology Ltd Noise control
TWI770384B (zh) * 2019-05-20 2022-07-11 美律實業股份有限公司 無線耳機
CN110099330A (zh) * 2019-06-03 2019-08-06 广州由我科技股份有限公司 一种耳机、耳机系统及耳机充电系统
US11335316B2 (en) 2020-09-16 2022-05-17 Apple Inc. Headphone with multiple reference microphones and oversight of ANC and transparency
US11437012B2 (en) * 2020-09-16 2022-09-06 Apple Inc. Headphone with multiple reference microphones ANC and transparency
CN112235675B (zh) * 2020-09-29 2022-03-11 头领科技（昆山）有限公司 一种耳机的主动降噪方法和芯片
CN112511943B (zh) * 2020-12-04 2023-03-21 北京声智科技有限公司 声音信号处理方法、装置及电子设备
CN113163281B (zh) * 2021-02-23 2023-06-02 深圳壹秘科技有限公司 麦克风及麦克风的降噪系统
US11689836B2 (en) * 2021-05-28 2023-06-27 Plantronics, Inc. Earloop microphone
CN114187920A (zh) * 2021-11-30 2022-03-15 歌尔光学科技有限公司 一种头戴设备及其远场声音处理方法、装置及系统
CN114355292B (zh) * 2021-12-28 2022-09-23 华南理工大学 一种无线耳机及其麦克风定位方法
CN114339524B (zh) * 2021-12-31 2025-05-06 歌尔科技有限公司 一种头戴设备及其声音处理方法、装置
CN114760554B (zh) * 2022-03-28 2024-10-25 广东小天才科技有限公司 一种夹耳式耳机的麦克风管理方法、装置及夹耳式耳机
CN115103267B (zh) * 2022-06-30 2025-08-01 歌尔科技有限公司 一种Beam-forming功能实现方法及系统
US12407982B1 (en) * 2025-06-10 2025-09-02 Relay, Inc. Optimal microphone selection on a remote speaker/microphone (RSM) assembly

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120284022A1 (en) * 2009-07-10 2012-11-08 Alon Konchitsky Noise reduction system using a sensor based speech detector
CN105229737A (zh) * 2013-03-13 2016-01-06 寇平公司 噪声消除麦克风装置
CN107071608A (zh) * 2017-02-14 2017-08-18 歌尔股份有限公司 降噪耳机以及电子设备
CN206640738U (zh) * 2017-02-14 2017-11-14 歌尔股份有限公司 降噪耳机以及电子设备
CN107396223A (zh) * 2017-07-31 2017-11-24 歌尔股份有限公司 耳机上行降噪方法
CN108696785A (zh) * 2018-07-24 2018-10-23 歌尔股份有限公司 多麦降噪耳机及方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8401178B2 (en) * 2008-09-30 2013-03-19 Apple Inc. Multiple microphone switching and configuration
CN105469819A (zh) * 2014-08-20 2016-04-06 中兴通讯股份有限公司 麦克选择方法及装置
CN104754436B (zh) * 2015-03-13 2024-01-16 钰太芯微电子科技（上海）有限公司 一种主动降噪方法以及降噪耳机
CN206237581U (zh) * 2016-12-21 2017-06-09 歌尔科技有限公司 一种双麦克风耳机
CN206481427U (zh) * 2017-01-05 2017-09-08 万魔声学科技有限公司 一种耳机
CN107371079B (zh) * 2017-04-17 2019-10-11 恒玄科技（上海）有限公司 一种耳机的双麦克降噪系统及降噪方法
CN107426643B (zh) * 2017-07-31 2019-08-23 歌尔股份有限公司 上行降噪耳机
CN207304841U (zh) * 2017-09-04 2018-05-01 深圳市硕泰华科技有限公司 一种数字耳机

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120284022A1 (en) * 2009-07-10 2012-11-08 Alon Konchitsky Noise reduction system using a sensor based speech detector
CN105229737A (zh) * 2013-03-13 2016-01-06 寇平公司 噪声消除麦克风装置
CN107071608A (zh) * 2017-02-14 2017-08-18 歌尔股份有限公司 降噪耳机以及电子设备
CN206640738U (zh) * 2017-02-14 2017-11-14 歌尔股份有限公司 降噪耳机以及电子设备
CN107396223A (zh) * 2017-07-31 2017-11-24 歌尔股份有限公司 耳机上行降噪方法
CN108696785A (zh) * 2018-07-24 2018-10-23 歌尔股份有限公司 多麦降噪耳机及方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114255733A (zh) * 2021-12-21 2022-03-29 中国空气动力研究与发展中心低速空气动力研究所 自噪声掩蔽系统及飞行设备
CN114255733B (zh) * 2021-12-21 2023-05-23 中国空气动力研究与发展中心低速空气动力研究所 自噪声掩蔽系统及飞行设备

Also Published As

Publication number Publication date
CN108696785B (zh) 2019-10-29
US20210144469A1 (en) 2021-05-13
US11350209B2 (en) 2022-05-31
CN108696785A (zh) 2018-10-23

Similar Documents

Publication Publication Date Title
WO2020019956A1 (zh) 多麦降噪耳机及方法
WO2020220721A1 (zh) 一种声学输出装置
US10524050B2 (en) Dual-use bilateral microphone array
US10158941B2 (en) Controlling wind noise in a bilateral microphone array
CN103026733B (zh) 用于多麦克风位置选择性处理的系统、方法、设备和计算机可读媒体
US10748521B1 (en) Real-time detection of conditions in acoustic devices
CN108432264A (zh) 基于密封质量的阻塞减少和主动降噪
CN113994711B (zh) 对主动降噪设备中多个前馈麦克风的动态控制
WO2015120475A1 (en) Conversation assistance system
CN108604450B (zh) 用于音频处理的方法、系统和计算机可读存储介质
CN205092949U (zh) 一种降噪耳机
CN113421540A (zh) 主动降噪方法、主动降噪装置及半入耳式主动降噪耳机
US12149919B2 (en) Automatic acoustic handoff
WO2020248113A1 (zh) 一种骨传声信号处理方法、装置、芯片、耳机及存储介质
US20130177164A1 (en) Ultrasonic sound reproduction on eardrum
TWI723376B (zh) 輔助聽力裝置
CN107948789A (zh) 基于云服务的主动降噪耳机设计系统及方法
CN219612003U (zh) 一种开放式耳机
WO2022143268A1 (zh) 位置识别方法和耳机设备
CN118055350A (zh) 耳机自适应主动降噪的方法、装置、存储介质和耳机
CN111785243B (zh) 一种耳机有源降噪方法及系统
US11303998B1 (en) Wearing position detection of boomless headset
CN119173941A (zh) 开放式可穿戴声学设备及其主动降噪方法
CN108615523A (zh) 调节反馈有源控制系统水床效应的频域自适应方法
US20240078994A1 (en) Active damping of resonant canal modes

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19841166

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19841166

Country of ref document: EP

Kind code of ref document: A1