CN108235164B - Microphone neck ring earphone - Google Patents

Microphone neck ring earphone Download PDF

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Publication number
CN108235164B
CN108235164B CN201711333483.7A CN201711333483A CN108235164B CN 108235164 B CN108235164 B CN 108235164B CN 201711333483 A CN201711333483 A CN 201711333483A CN 108235164 B CN108235164 B CN 108235164B
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China
Prior art keywords
microphone
user
neck
voice signal
earphone
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CN201711333483.7A
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Chinese (zh)
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CN108235164A (en
Inventor
陈运基
刘�东
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Anker Innovations Co Ltd
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Anker Innovations Co Ltd
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Priority to CN201711333483.7A priority Critical patent/CN108235164B/en
Publication of CN108235164A publication Critical patent/CN108235164A/en
Priority to PCT/CN2018/110271 priority patent/WO2019114398A1/en
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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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/08—Mouthpieces; Microphones; Attachments therefor
    • H04R1/083—Special constructions of mouthpieces
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; 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; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones

Abstract

The application discloses microphone neck ring earphone, this microphone neck ring earphone includes neck ring and earphone main part, and when microphone neck ring earphone was normally worn, the neck ring was worn at user's neck, and the earphone main part is worn in user's ear, wherein, the neck ring includes: the first microphone array is arranged at the first end part of the neck loop and at least comprises a first microphone and a second microphone for picking up a first voice signal around the first microphone array, wherein when the neck loop earphone is worn normally, a connecting line of the first microphone and the second microphone is directed to the mouth of a user, and the influence of ambient noise on conversation can be reduced through the neck loop earphone.

Description

Microphone neck ring earphone
Technical Field
The application relates to the technical field of earphones, in particular to a microphone neck ring earphone.
Background
With the continuous development of science and technology, earphones are used more and more.
The earphone is a conversion unit for receiving the electric signal sent by the media player, and then converting the electric signal into audible sound waves by using a loudspeaker close to the ear, and the earphone can independently listen to the sound without influencing other people.
The inventor of the present application finds, in a long-term study, that people often stay in an unstable environment during a call, for example, in a market, a factory, or a vehicle, and noise in these public places often causes that when an earphone transmits a voice signal, the voice signal at the source is unclear, which seriously affects the quality of the call and the user experience.
Disclosure of Invention
The technical problem that this application mainly solved provides a microphone neck ring earphone, can reduce the influence of ambient noise to the conversation.
In order to solve the technical problem, the application adopts a technical scheme that: there is provided a microphone neck ring earphone comprising a neck ring worn on a user's neck when the microphone neck ring earphone is normally worn and an earphone body worn in the user's ear, wherein the neck ring comprises: a first microphone array disposed at a first end of the neck loop, the first microphone array including at least a first microphone and a second microphone for picking up a first voice signal around the first microphone array, wherein a connection of the first microphone and the second microphone is directed toward a mouth of a user when the neck loop headset is normally worn.
The beneficial effect of this application is: in contrast to the prior art, the microphone neck ring earphone in the present application includes a neck ring worn on the neck of a user and an earphone body worn in the ear of the user when the microphone neck ring earphone is normally worn, wherein the neck ring includes: the first microphone array is arranged at the first end part of the neck loop and at least comprises a first microphone and a second microphone for picking up a first voice signal around the first microphone array, wherein when the neck loop earphone is worn normally, the connection line of the first microphone and the second microphone points to the mouth of a user. By the microphone neck ring earphone, the sound signal emitted by the user can be directionally picked up, and the influence of environmental noise on conversation is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Wherein:
FIG. 1 is a schematic view of a microphone neck loop headset of an embodiment of the present application as worn;
FIG. 2 is an enlarged schematic view at A in FIG. 1;
FIG. 3 is a schematic diagram of the internal structure of the neck loop earphone of the microphone of the embodiment of FIG. 1;
FIG. 4 is a schematic diagram of an external structure of another embodiment of a microphone neck ring earphone of the present application;
fig. 5 is a schematic diagram of the internal structure of the neck ring earphone of the microphone in the embodiment of fig. 4.
Detailed Description
Referring to fig. 1, fig. 1 is a schematic diagram of a microphone neck loop earphone according to an embodiment of the present application when being worn, the microphone neck loop earphone including: a neck collar 10 and an earphone body (not shown) which are connected by a wire (not shown) and which, when the microphone neck collar earphone is normally worn, the neck collar 10 is worn on the neck of the user and the earphone body is worn in the ear of the user. Wherein the neck ring 10 comprises: a first microphone array 11.
The first microphone array 11 is arranged at the first end 1 of the neck loop and is used for picking up a first voice signal around the first microphone array 11, wherein the first voice signal comprises both a voice signal emitted by a user during a call and a useful signal processed and delivered by the headset of the neck loop and a noise signal of the surrounding environment of the user during the call.
In order to better collect the surrounding voice signals, the first microphone array 11 includes at least a first microphone 111 and a second microphone 112, that is, the first microphone array 11 includes at least two microphones, wherein the models of the microphones may be the same or different.
When the neck ring earphone is worn normally, the connecting line of the first microphone 111 and the second microphone 112 points to the mouth of the user, so that the aim of directionally collecting sound signals emitted from the mouth of the user can be achieved, and the influence of environmental noise on conversation can be reduced.
Alternatively, in order to avoid that the microphones of the first microphone array 11 are simultaneously obstructed, referring to fig. 2, fig. 2 is an enlarged view at a in fig. 1, wherein the first microphone 111 and the second microphone 112 are located at different sides of the first end portion 1, thereby reducing the probability that the microphones of the first microphone array 11 are simultaneously obstructed, and ensuring the pick-up of the voice signal.
In general, a user wears accessories according to personal preference and wears collars of different heights, which may affect the pickup of the microphone arrays to the voice signals, so that, optionally, with reference to fig. 2, at least one microphone of the first microphone array 11 is located on a first side 101 (illustrated as the second microphone 112 on the first side 101 in fig. 2) of the first end portion 1, and when the first side 101, in particular the neck ring microphone set, is worn normally, the first end portion 1 is away from the side of the head of the user, i.e. away from the collars and the accessories of the user, so as to prevent the collars and the accessories of the user from affecting the pickup of the voice signals.
With continued reference to fig. 1, optionally, to ensure that the first microphone array 11 is close to the mouth of the user, the first microphone array 11 is positioned between the mouth and the chest of the user when the neck loop headset is worn normally.
Referring to fig. 3, fig. 3 is a schematic diagram of an internal structure of the microphone neck loop earphone in the embodiment of fig. 1, the microphone neck loop earphone further includes: a processor 12.
The processor 12 is connected to the first microphone array 11 and is configured to receive the first speech signal transmitted by the first microphone array 11.
Alternatively, in this embodiment, when the neck-loop earphone is worn normally, the distance between the first microphone 111 and the mouth of the user is smaller than the distance between the second microphone 112 and the mouth of the user, that is, the first microphone 111 is closer to the mouth of the user than the second microphone 112, and the processor 12 cancels the noise signal in the first microphone voice signal picked up by the first microphone 111 according to the second microphone voice signal picked up by the second microphone 112.
Specifically, since the first microphone array 11 includes at least two microphones and different microphones pick up different voice signals, the first microphone 111 near the mouth of the user is mainly used for picking up a sound signal emitted by the user, and the second microphone 112 far from the mouth of the user is mainly used for picking up a noise signal, when the processor 12 receives the first voice signal, the noise signal in the first microphone voice signal can be eliminated by using an algorithm according to a phase difference, a frequency band, a waveform change law and the like between the first microphone voice signal picked up by the first microphone 111 and the second microphone voice signal picked up by the second microphone 112, so as to reduce the influence of ambient noise on the call.
Optionally, in order to more conveniently apply the algorithm to perform denoising processing on the first microphone voice signal, the distance between the first microphone 111 and the second microphone 112 is greater than a first threshold, and when the distance between the microphones is greater than the first threshold, the difference between the sub-voice signals in the first voice signal is more obvious, so that the algorithm is advantageously applied to achieve the purpose of eliminating the noise signal.
In particular, the first threshold is determined by the wavelength of the speech signal. For example, in one application scenario, the first threshold is determined to be 10mm according to the wavelength of the speech signal, that is, the first microphone array 11 includes microphones with a distance greater than 10 mm.
Referring to fig. 4 and 5, fig. 4 is a schematic external structure diagram of another embodiment of the neck loop earphone of the microphone of the present application, and fig. 5 is a schematic internal structure diagram of the neck loop earphone of the microphone of fig. 4.
In this embodiment, the microphone neck loop headset further comprises: a second microphone array 13.
And a second microphone array 13, which is arranged at the second end part 2 of the neck ring 10, wherein the second end part 2 is opposite to the first end part 1, specifically, when the microphone neck ring earphone is worn normally, the first end part 1 and the second end part 2 are positioned at two different sides of the mouth of the user.
The second microphone array 13 includes at least a third microphone 133 and a fourth microphone 134, that is, the second microphone array 13 includes at least two microphones for picking up a second voice signal around the second microphone array 13, which is the same as the first voice signal, and the second voice signal also includes a sound signal and a noise signal. Optionally, the number of microphones in the second microphone array 13 is the same as the number of microphones in the first microphone array 11.
Optionally, the structure and the position relationship of the microphones in the second microphone array 13 are the same as those of the microphones in the first microphone array 11, and the details can be referred to above, and are not described herein again.
In the present embodiment, the processor 12 is connected to the first microphone array 11 and the second microphone array 13, respectively, and determines the deviation of the head of the user based on the received first voice signal transmitted by the first microphone array 11 and the received second voice signal transmitted by the second microphone array 13, and uses the microphone array close to the head of the user as the main body of sound collection. Wherein, taking the microphone array close to the head of the user as the sound pickup main body means: specifically, the processor 12 takes the data items of the voice signals picked up by the microphone array close to the head of the user as main data, and takes the data items of the voice signals picked up by the microphone array far from the head of the user as reference data, and processes the data items of the voice signals picked up by the microphone array far from the head of the user as reference data, and takes the data items of the voice signals compensated and corrected main data as reference data to obtain the finally delivered voice signals, for example, when the first microphone array 11 is closer to the head of the user than the second microphone array 13, the data items of the first voice signals are: phase, intensity, frequency band, etc. as main data, and taking each item of data of the second voice signal: the phase, intensity, frequency band and the like are used as reference data, and compensation correction is carried out on various items of data of the first voice signal by using the reference data, so that the first voice signal after compensation correction is used as a finally transmitted voice signal. Wherein the compensation correction comprises: strengthen the signal intensity of the sound signal frequency band, reduce the signal intensity of the noise frequency band, and the like.
Generally speaking, during a call, the head of a user inevitably rotates or shakes, the user hardly keeps the position at the center between the first end 1 and the second end 2 of the neck loop earphone, even in some noisy environments, the user intentionally leans to one side to make a call, at this time, a voice signal picked up by the microphone array close to the head of the user is clearer, the noise component of the voice signal is less, and a speech signal picked up by the microphone array far away from the head of the user has more noise component and smaller signal noise. In the prior art, generally, the speech signals picked up by the microphones on both sides are processed in the same proportion to obtain the finally transmitted speech signal, and at this time, the finally obtained speech signal has more noise components and smaller signal-to-noise ratio, which is easy to cause the degradation of the communication quality. In the embodiment, the microphone array close to the head of the user is used as the sound pickup main body, so that the influence of environmental noise on the call can be reduced, the signal-to-noise ratio of the voice signal is improved, and a clear voice signal is obtained.
Optionally, the processor 12 determines the head deviation of the user according to the signal strength of the first voice signal and the second voice signal. Specifically, the signal strength of the voice signal picked up by the microphone array close to the head of the user is greater than the signal strength of the voice signal picked up by the microphone array far from the head of the user.
Optionally, the processor 12 may further determine the head bias of the user according to the phase of the first voice signal and the second voice signal. Specifically, the phase of the speech signal picked up by the microphone array far from the head of the user lags behind the phase of the speech signal picked up by the microphone array near the head of the user.
Of course, the processor 12 may also determine the head deviation of the user by combining the signal strength and the phase of the first voice signal and the signal strength and the phase of the second voice signal at the same time, which is not described herein again.
Optionally, the processor 12 is further configured to locate the noise source according to the first voice signal and the second voice signal, and to increase the volume in the earpieces near the direction in which the noise source is located and decrease the volume in the earpieces far from the direction in which the noise source is located.
Specifically, the respective noise signals in the second voice signal of the first voice signal are obtained through the frequency bands of the signals received by the microphones in the respective first microphone array 11 and the second microphone array 13 and the change rule of the waveforms of the signals, and the noise sources are further located according to the signal strength, the phase difference and other parameters of the noise signals, wherein the initial direction of the noise sources can be judged according to the signal strength of the noise signals, then the phase difference is combined, the noise sources are located through an algorithm, the volume is increased in the earplugs close to the direction of the noise sources, the volume is reduced in the earplugs far away from the direction of the noise sources, so that the signal strength heard at the two sides of the user is the same as much as possible, and the user can hear balanced sound.
In summary, unlike the prior art, the neck-loop microphone set in the present application sets the connection line of the first microphone and the second microphone in the first microphone array to point to the mouth of the user, so as to be able to directionally pick up the sound signal emitted by the user and reduce the influence of the ambient noise on the call.
The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims (9)

1. A microphone neck loop earphone comprising a neck loop worn on a user's neck when the microphone neck loop earphone is normally worn and an earphone body worn in the user's ear, the neck loop comprising:
a first microphone array disposed at a first end of the neck loop, the first microphone array including at least a first microphone and a second microphone for picking up a first voice signal around the first microphone array, wherein a connection line of the first microphone and the second microphone is directed toward a mouth of a user when the neck loop headset is normally worn;
a second microphone array disposed at a second end of the neck loop, the second end being opposite the location of the first end, the second microphone array including at least a third microphone and a fourth microphone for picking up a second speech signal around the second microphone array;
a processor, the processor is respectively connected with the first microphone array and the second microphone array, and is used for obtaining respective noise signals in the first voice signal and the second voice signal through respective frequency bands and waveform change rules of signals received by the microphones in the first microphone array and the second microphone array, further positioning a noise source according to signal intensity and phase difference of the noise signals, increasing volume in an earplug close to the noise source positioning direction, and reducing volume in an earplug far away from the noise source positioning direction.
2. The microphone neck loop headset of claim 1,
the first microphone and the second microphone are located on different sides of the first end.
3. The microphone neck loop headset of claim 1,
the first microphone array is located between the mouth and the chest of the user when the microphone neck collar earphone is normally worn.
4. The microphone neck loop headset of claim 1,
the second microphone is located on a first side face of the first end portion, the first side face is a side face of the first end portion, when the microphone neck ring earphone is worn normally, the first end portion is far away from the head of the user, and when the microphone neck ring earphone is worn normally, the distance between the first microphone and the mouth of the user is smaller than the distance between the second microphone and the mouth of the user.
5. The microphone neck loop headset of claim 4,
the processor eliminates a noise signal in a first microphone voice signal picked up by the first microphone according to a second microphone voice signal picked up by the second microphone.
6. The microphone neck loop headset of claim 5,
a separation between the first microphone and the second microphone is greater than a first threshold.
7. The microphone neck loop headset of claim 6,
the first threshold is 10 mm.
8. The neckloop headset of claim 1, wherein the processor determines the head deviation of the user based on the received first voice signal transmitted by the first microphone array and the received second voice signal transmitted by the second microphone array, and uses the microphone array near the head of the user as a pickup body.
9. The microphone neck loop headset of claim 8,
and the processor judges the head deviation of the user according to the signal intensity of the first voice signal and the second voice signal and/or the phase of the first voice signal and the second voice signal.
CN201711333483.7A 2017-12-13 2017-12-13 Microphone neck ring earphone Active CN108235164B (en)

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CN201711333483.7A CN108235164B (en) 2017-12-13 2017-12-13 Microphone neck ring earphone
PCT/CN2018/110271 WO2019114398A1 (en) 2017-12-13 2018-10-15 Microphone neck ring earphone

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Application Number Priority Date Filing Date Title
CN201711333483.7A CN108235164B (en) 2017-12-13 2017-12-13 Microphone neck ring earphone

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CN108235164B true CN108235164B (en) 2020-09-15

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CN108235164B (en) * 2017-12-13 2020-09-15 安克创新科技股份有限公司 Microphone neck ring earphone
CN108235165B (en) * 2017-12-13 2020-09-15 安克创新科技股份有限公司 Microphone neck ring earphone
CN111163411B (en) * 2018-11-08 2022-11-18 达发科技股份有限公司 Method for reducing influence of interference sound and sound playing device
TWI723376B (en) * 2019-04-15 2021-04-01 美律實業股份有限公司 Hearing aid device
CN113163281B (en) * 2021-02-23 2023-06-02 深圳壹秘科技有限公司 Microphone and noise reduction system thereof

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WO2019114398A1 (en) 2019-06-20

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