CN111372155B - Tactical earphone control method and tactical earphone - Google Patents
Tactical earphone control method and tactical earphone Download PDFInfo
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- CN111372155B CN111372155B CN201811589518.8A CN201811589518A CN111372155B CN 111372155 B CN111372155 B CN 111372155B CN 201811589518 A CN201811589518 A CN 201811589518A CN 111372155 B CN111372155 B CN 111372155B
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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
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1083—Reduction of ambient noise
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Abstract
The invention provides a tactical headset control method and a tactical headset, wherein the tactical headset can be switched among a first mode, a second mode and a third mode; the method comprises the following steps: a feedforward microphone collects ambient sound; under the condition that the tactical headset is in a first mode, the processor processes first noise in the ambient sound to generate first reverse noise which is the same as the frequency spectrum of the first noise and opposite in phase, and the loudspeaker plays the first reverse noise; under the condition that the tactical earphone is in the second mode, the processor separates out the sound of the human voice frequency band from the environment sound, and the loudspeaker plays the sound of the human voice frequency band; and under the condition that the tactical headset is in the third mode, the processor amplifies the environment sound and then plays the environment sound through the loudspeaker. The invention can enable the tactical earphone to have the function of noise reduction, and further enable a single soldier to hear the instruction more easily in the battle environment with more noise.
Description
Technical Field
The invention relates to the technical field of military earphones, in particular to a tactical earphone control method and a tactical earphone.
Background
The individual soldier is an important soldier species for integrated operation, is mainly used for reconnaissance, stealing, blasting, communication, information, long-term latent operation or special task operation and the like, and the performance of the communication equipment plays an important role in information transmission, sharing, operation and survival guarantee.
Tactical earphones are important equipment for single soldier combat time and are generally used for single soldier communication. The existing tactical earphone can not reduce noise generally, so that when more noise exists in the operation environment where an individual soldier is located, the individual soldier can difficultly hear an instruction to influence operation.
Disclosure of Invention
The embodiment of the invention provides a tactical headset control method and a tactical headset, and aims to solve the problem that the existing tactical headset cannot reduce noise generally, so that when more noise exists in a combat environment where an individual soldier is located, the individual soldier cannot hear an instruction clearly, and the combat is influenced.
In order to solve the technical problem, the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a tactical headset control method, where the tactical headset can be switched among a first mode, a second mode, and a third mode;
the method comprises the following steps:
a feedforward microphone collects ambient sound;
with the tactical headset in the first mode, a processor processes a first noise in the ambient sound to generate a first inverse noise having a same frequency spectrum as the first noise and an opposite phase, a speaker playing the first inverse noise;
with the tactical headset in the second mode, the processor separates a vocal range of sound from the ambient sound, the speaker playing the vocal range of sound;
with the tactical headset in the third mode, the processor amplifies the ambient sound for playback through the speaker.
Optionally, in the case that the tactical headset is in the first mode, the method further comprises:
the feedback microphone collects sound at the vibrating diaphragm;
the processor processes second noise in sound at the diaphragm to generate second reverse noise which has the same frequency spectrum and opposite phase with the second noise, and the loudspeaker plays the second reverse noise simultaneously when playing the first reverse noise.
Optionally, in a case where the tactical headset is in the second mode, the method further comprises:
the feedback microphone collects sound at the vibrating diaphragm;
the processor processes second noise in sound at the diaphragm to generate second reverse noise which has the same frequency spectrum as the second noise and is opposite in phase, and the loudspeaker plays the second reverse noise simultaneously when playing sound in the human voice frequency band.
Optionally, in a case that the tactical headset is in the third mode, the method further comprises:
the processor controls the feedback microphone to stop working.
Optionally, in the case that the tactical headset is in the first mode, the method further comprises:
the processor controls the input gain of the feedforward microphone to increase to a first preset value in a case where the sound pressure level of the ambient sound is greater than or equal to a first preset sound pressure level.
Optionally, in a case where the tactical headset is in the second mode, the method further comprises:
the processor controls the input gain of the feedforward microphone to be increased to a second preset value so as to increase the voice of the human voice frequency band.
Optionally, in a case that the tactical headset is in the third mode, the method further comprises:
the processor controls an input gain of the feedforward microphone to increase to a third preset value to increase the ambient sound.
Optionally, in a case that the tactical headset is in the target mode, the method further comprises:
the processor controls the tactical headset to switch from the target mode to the first mode if the sound pressure level of the ambient sound is greater than or equal to a second preset sound pressure level;
the target mode is the second mode or the third mode.
Optionally, the method further includes:
the processor controls the tactical headset to switch from the first mode to the target mode if the sound pressure level of the ambient sound is less than or equal to a third preset sound pressure level.
In a second aspect, embodiments of the present invention further provide a tactical headset, the tactical headset comprising a feedforward microphone, a feedback microphone, a speaker and a processor, the processor being electrically connected to the feedforward microphone, the feedback microphone and the speaker, respectively;
the tactical headset processes sound by adopting the tactical headset control method.
Optionally, the tactical headset further comprises an earshell, wherein the earshell is provided with a passive noise reduction structure;
the feedforward microphone is arranged on the outer surface of the ear shell;
the feedback microphone with the speaker all set up in the concha, just the feedback microphone is located the sound production side of speaker.
Optionally, the earmuff includes a front cavity, a middle cavity, a rear cavity and a rear cover to form a four-layer passive noise reduction structure;
the middle cavity is internally provided with a first cavity, and the middle cavity is provided with a first side and a second side which are oppositely arranged; the front cavity is positioned on the first side of the middle cavity, and the front cavity is connected with the middle cavity and surrounds the middle cavity to form a second cavity; the rear cavity is positioned on the second side of the middle cavity, and the rear cavity is connected with the middle cavity and forms a third cavity by being surrounded with the middle cavity; the rear cover is positioned on the second side of the middle cavity and connected with the middle cavity, and the rear cover, the middle cavity and the rear cavity enclose to form a fourth cavity;
the feedforward microphone is arranged on the outer surface of the rear cover;
the feedback microphone with the speaker all set up in the first cavity, the sound production side orientation of speaker the front chamber body sets up.
The invention has the following beneficial technical effects:
in the tactical headset in the embodiment of the invention, under the first mode, the first reverse noise which has the same frequency spectrum with the first noise in the environment sound and is opposite in phase is generated, and the first reverse noise is played, so that when the tactical headset is used under the first mode, the first reverse noise can counteract the first noise in the environment sound, and the tactical headset in the embodiment of the invention has a noise reduction function, and thus, a single soldier can hear an instruction more easily under a combat environment with more noise; in addition, in the second mode, the voice in the human voice frequency band can be separated from the environmental voice, and the voice in the human voice frequency band is played, so that the individual soldier can hear the human voice in the environment more clearly, that is, the tactical headset in the embodiment of the invention also has the function of monitoring the human voice in the surrounding environment; in addition, in the third mode, the environmental sound is amplified and then played, so that the individual soldier can hear the environmental sound more clearly, that is, the tactical headset in the embodiment of the invention also has the function of monitoring all the sound in the surrounding environment, and the individual soldier can better perceive the environment.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a flow chart of a tactical headset control method according to an embodiment of the present invention;
fig. 2 is a front view of a tactical headset provided in accordance with an embodiment of the present invention;
fig. 3 is a left side view of a tactical headset provided with an embodiment of the present invention;
fig. 4 is a partial block diagram of a tactical headset according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides a tactical headset control method, where the tactical headset can be switched among a first mode, a second mode and a third mode;
the method comprises the following steps:
a feedforward microphone collects ambient sound;
under the condition that the tactical earphone is in a first mode, the processor processes first noise in the environment sound to generate first reverse noise which is the same as the frequency spectrum of the first noise and is opposite in phase, and the loudspeaker plays the first reverse noise;
under the condition that the tactical earphone is in the second mode, the processor separates out the sound of the human voice frequency band from the environment sound, and the loudspeaker plays the sound of the human voice frequency band;
and under the condition that the tactical headset is in the third mode, the processor amplifies the environment sound and then plays the environment sound through the loudspeaker.
The tactical headset may be a head-mounted tactical headset, an in-ear tactical headset, or other types of tactical headsets, which is not limited in the embodiments of the present invention. The tactical headset can be provided with a communication function, for example, various communication devices (such as a radio station and a handset) can be accessed to realize communication.
The tactical earphone can be provided with an on-off key, and when the on-off key is pressed for a long time, the tactical earphone can be started or shut down; furthermore, the tactical headset can be further provided with a switch indicator light, when the tactical headset is in a starting state, the switch indicator light is lightened or flickers, and when the tactical headset is in a shutdown state, the switch indicator light is turned off or stops flickering. The tactical headset can be provided with at least two electric quantity indicator lamps, and the corresponding electric quantity indicator lamps are controlled to be turned on or flash according to the current residual electric quantity when the tactical headset is in a starting state; for example, 4 power indicator lamps may be provided on the tactical headset, where the 4 power indicator lamps correspond to 100%, 75%, 50%, and 25% of remaining power, respectively, when the user double-clicks the on-off key, the power indicator lamp corresponding to the current remaining power control flashes in green, and when the remaining power is lower than 10%, at least one of the power indicator lamps flashes in red.
The tactical headset can be switched among a first mode, a second mode and a third mode, which can mean that the tactical headset can be switched among the first mode, the second mode and the third mode according to the operation of a user; for example, a mode switching key electrically connected to the processor may be provided on the tactical headset, the default mode is the first mode when the tactical headset is powered on, and the user performs mode switching by clicking the mode switching key, and the mode switching is performed in a "three modes" of the first mode, the second mode, and the third mode in sequence. Further, the tactical headset may further be provided with a mode indicator light, and the mode indicator light may be used to indicate a current mode of the tactical headset, for example, three mode indicator lights may be provided on the tactical headset, the three mode indicator lights correspond to "three modes" of the tactical headset one-to-one, and when the tactical headset is turned on and switched between modes, the corresponding mode indicator light is controlled to light up or flash according to the current mode. The power indicator light and the mode indicator light can be different indicator lights or the same indicator light.
The tactical headset can be provided with a control handle, and the switch key, the switch indicator light, the electric quantity indicator light, the mode switching key, the mode indicator light and the like can be arranged on the control handle; the processor may be disposed within the control handle.
The above-mentioned ambient sound may refer to all sounds in the surroundings of the tactical headset; the first noise in the environmental sound may be environmental noise, and the environmental noise may be sound of which a middle frequency band is within a first preset range. The opposite phases may refer to phases that are 180 degrees apart. The loudspeaker can be a moving coil loudspeaker, a capacitance loudspeaker, a reed loudspeaker or a crystal loudspeaker and other loudspeakers; because the anti-noise effect of the moving coil speaker is better, the sound effect of the tactical headset is better when the moving coil speaker is adopted. The vocal range may refer to a frequency of 300 hz to 1800 hz, and specifically, the vocal range may be set as required.
In the tactical headset in the embodiment of the invention, under the first mode, the first reverse noise which has the same frequency spectrum with the first noise in the environment sound and is opposite in phase is generated, and the first reverse noise is played, so that when the tactical headset is used under the first mode, the first reverse noise can counteract the first noise in the environment sound, and the tactical headset in the embodiment of the invention has a noise reduction function, and thus, a single soldier can hear an instruction more easily under a combat environment with more noise; in addition, in the second mode, the voice in the human voice frequency band can be separated from the environmental voice, and the voice in the human voice frequency band is played, so that the individual soldier can hear the human voice in the environment more clearly, that is, the tactical headset in the embodiment of the invention also has the function of monitoring the human voice in the surrounding environment, and the voice hearing-through is realized; in addition, in the third mode, the environmental sound is amplified and then played, so that the individual soldier can hear the environmental sound more clearly, that is, the tactical headset in the embodiment of the invention also has the function of monitoring all the sound in the surrounding environment, and the individual soldier can better perceive the environment.
In a specific application, the first mode of the tactical headset in the embodiment of the invention can be applied to the situation that an individual soldier carries out channel communication in a noise environment; the second mode of the tactical headset in the embodiment of the invention can be applied to channel-free communication among teammates in a noise environment, and at the moment, the tactical headset picks up the teammate sound in the environment sound and performs amplification playing; the third mode of the tactical headset in the embodiment of the invention can be applied to battlefield reconnaissance in a quiet environment, and at the moment, the tactical headset picks up environmental sound to amplify.
Optionally, in the case that the tactical headset is in the first mode, the method further comprises:
the feedback microphone collects sound at the vibrating diaphragm;
the processor processes second noise in sound at the diaphragm to generate second reverse noise which has the same frequency spectrum and opposite phase with the second noise, and the loudspeaker plays the second reverse noise simultaneously when playing the first reverse noise.
The sound at the diaphragm can be all the sound at the diaphragm; the second noise in the sound at the diaphragm may be a noise at the diaphragm, and the noise at the diaphragm may be a sound at a second preset range in a middle frequency range of the sound at the diaphragm.
Therefore, the second reverse noise generated is the same as and opposite in phase to the second noise in the sound at the diaphragm, so that when the tactical earphone is used in the first mode, the second reverse noise can offset the second noise in the sound at the diaphragm, that is, the noise at the diaphragm can be further offset, so as to realize the mixed feed type two-stage active noise reduction combining the feedforward noise reduction and the feedback noise reduction, and further enable the tactical earphone in the embodiment of the invention to have larger noise reduction amount and better noise reduction effect.
Specifically, in this embodiment, the first mode may include a conventional noise reduction sub-mode and a depth noise reduction sub-mode; wherein, when the tactical headset is in the normal noise reduction sub-mode, the processor may process only the ambient sound to generate a first inverse noise (i.e., only feed forward noise reduction); when the tactical headset is in the deep noise reduction sub-mode, the processor may process both the ambient sound and the sound at the diaphragm to generate a first inverse noise and a second inverse noise (i.e., perform feedforward plus feedback noise reduction). More specifically, the tactical headset may have a default mode of a conventional noise reduction sub-mode in the first mode when the tactical headset is turned on, and the user performs mode switching by clicking the mode switching key, and cyclically switches the conventional noise reduction sub-mode in the first mode, the deep noise reduction sub-mode in the first mode, the second mode, and the third mode in "four modes". If the first mode comprises a conventional noise reduction sub-mode and a depth noise reduction sub-mode, the conventional noise reduction sub-mode can be selected in the noise environment with the sound pressure level lower than a preset value (such as 95 decibels) during actual application; and under the noise environment with the sound pressure level greater than or equal to the preset value, a deep noise reduction sub-mode can be selected.
Optionally, in the case that the tactical headset is in the second mode, the method further comprises:
the feedback microphone collects sound at the vibrating diaphragm;
the processor processes the second noise in the sound at the diaphragm to generate a second inverse noise with the same frequency spectrum and opposite phase as the second noise, and the loudspeaker plays the second inverse noise simultaneously when playing the sound in the human voice frequency band.
Like this, because the frequency spectrum of the second noise in the second reverse noise that produces and the sound of vibrating diaphragm department is the same and the opposite phase place, therefore when using tactics earphone under the second mode, the second reverse noise can offset the second noise offset in the sound of vibrating diaphragm department, can further offset the noise of vibrating diaphragm department promptly to realize the combination of voice hearing-through function and noise reduction function, thereby make the individual soldier hear the people's voice in the environment more clearly, can further improve the effect of voice hearing-through promptly.
Optionally, in the case that the tactical headset is in the third mode, the method further comprises:
the processor controls the feedback microphone to stop working.
Since in the third mode the feedback microphone is not needed, the feedback microphone is controlled to stop working in this mode, which can further reduce the energy consumption of the tactical headset.
Optionally, in the case that the tactical headset is in the first mode, the method further comprises:
the processor controls the input gain of the feedforward microphone to increase to a first preset value in a case where a sound pressure level of the ambient sound is greater than or equal to a first preset sound pressure level.
The first preset sound pressure level may be 95 db, or may be another value greater than or less than 95 db, for example, 90 db, and may be specifically set as required.
Therefore, when the sound pressure level of the environmental sound is too high, the hearing of the user is easily damaged, and therefore in the first mode, when the sound pressure level of the environmental sound is greater than or equal to the first preset sound pressure level, the input gain of the feedforward microphone is automatically controlled to be increased to the first preset value, the noise reduction amount of the feedforward noise reduction is increased, the noise reduction effect is improved, the hearing of the user can be protected from or less damaged by sudden noise (such as gunshot sound and explosion sound), and the hearing of the user can be better protected.
Optionally, in the case that the tactical headset is in the second mode, the method further comprises:
the processor controls the input gain of the feedforward microphone to be increased to a second preset value so as to increase the sound of the human voice frequency band.
The processor controls the input gain of the feedforward microphone to increase to a second preset value, which may be the input gain of the feedforward microphone controlled to increase to the second preset value according to the operation of the user.
Therefore, in the second mode, the input gain of the feedforward microphone is controlled to be increased to the second preset value, the acquired sound of the human sound frequency band can be increased, and then a user can clearly hear the sound of the human sound frequency band in the environmental sound.
Optionally, in the case that the tactical headset is in the third mode, the method further comprises:
the processor controls the input gain of the feedforward microphone to increase to a third preset value to increase the ambient sound.
Like this, under the third mode, through the input gain increase to the third default of control feedforward microphone, can increase the environmental sound who acquires, and then can make the user hear the environmental sound more clearly to further promote the perceptibility of user to the environment.
Optionally, in some embodiments, the input gain of the feedforward microphone may also be adjusted according to the operation of the user, for example, an input gain increasing key and an input gain decreasing key may be provided on the tactical headset, the input gain of the feedforward microphone increases when the user presses the input gain increasing key, and the input gain of the feedforward microphone decreases when the user presses the input gain increasing key; more specifically, the input gain increase key and the input gain decrease key may be provided on the control handle.
Optionally, in the case that the tactical headset is in the target mode, the method further comprises:
the processor controls the tactical headset to switch from the target mode to the first mode if the sound pressure level of the ambient sound is greater than or equal to a second preset sound pressure level;
the target mode is the second mode or the third mode.
The second preset sound pressure level may be 95 db, or may be another value greater than or less than 95 db, for example, 90 db, and may be specifically set as required.
Therefore, when the sound pressure level of the environmental sound is larger than or equal to the second preset sound pressure level, the tactical headset is controlled to be switched from the second mode or the third mode to the first mode (namely, the noise reduction mode) so as to protect the hearing of the user from or less damage caused by sudden noise (such as gunshot sound and explosion sound), and further protect the hearing of the user better.
Optionally, the method further includes:
the processor controls the tactical headset to switch from the first mode to the target mode if the sound pressure level of the ambient sound is less than or equal to a third preset sound pressure level.
The third preset sound pressure level may be 95 db, or may be another value greater than or less than 95 db, for example, 90 db, and may be specifically set as required.
Therefore, when the sound pressure level of the environmental sound is less than or equal to the third preset sound pressure level, the tactical headset can automatically recover to the target mode without manual operation for recovery, namely, the step of manual operation is omitted, so that the tactical headset is more convenient to use.
As shown in fig. 2 to 4, the embodiment of the present invention further provides a tactical headset, which includes a feedforward microphone 1, a feedback microphone 2, a speaker 3 and a processor, wherein the processor is electrically connected to the feedforward microphone 1, the feedback microphone 2 and the speaker 3 respectively;
the tactical headset processes the sound by adopting the tactical headset control method in the embodiment.
Wherein, the feedforward microphone 1 may be arranged on the outer surface of the tactical headset, and the surface of the feedforward microphone 1 for collecting sound may be arranged away from the tactical headset (i.e. towards the environment). The feedback microphone 2 and the speaker 3 may be disposed inside the tactical headset, and the feedback microphone 2 may be located on a sound emitting side of the speaker 3.
According to the tactical headset in the embodiment of the invention, as the sound is processed by adopting the tactical headset control method in the embodiment, the tactical headset has the function of reducing noise, so that a single soldier can hear an instruction more easily in an operation environment with more noise; the system also has the function of monitoring the human voice in the surrounding environment so as to realize voice hearing; still possess the function of listening to all sounds in the surrounding environment, and then can make the perception ability of individual soldier to the environment better.
Optionally, the tactical headset further comprises an earshell 4, and the earshell 4 is provided with a passive noise reduction structure;
the feedforward microphone 1 is arranged on the outer surface of the ear shell 4;
both the feedback microphone 2 and the speaker 3 are disposed in the ear shell 4, and the feedback microphone 2 is located on the sound production side of the speaker 3.
The number of the above-mentioned ear shells 4 may be at least one, two or more; the number of the feedforward microphones 1, the feedback microphones 2 and the loudspeakers 3 can be corresponding to the number of the ear shells, that is, each ear shell is correspondingly provided with one feedforward microphone 1, one feedback microphone 2 and one loudspeaker 3; the number of the processors may be one, and the number of the processors may correspond to the number of the earshells. For example, in one embodiment, the number of the ear shells 4 is two, and the number of the feedforward microphone 1, the feedback microphone 2, the speaker 3 and the processor is also two, that is, one feedforward microphone 1, one feedback microphone 2, one speaker 3 and one processor are correspondingly disposed on each ear shell 4. When the number of the ear shells 4 is two or more, all the ear shells 4 may have the same structure.
The tactical headset may further comprise a head bow 5, and the head bow 5 may be connected to the earmuff 4. The tactical headset may further include a microphone holder cavity 6 and a microphone 7, wherein the microphone holder cavity 6 may be connected to the earmuff 5, the microphone 7 (e.g., a moving coil microphone) may be rotatably connected to the microphone holder cavity 6 through a rotation shaft 10, the microphone may be used to collect a voice signal of a user, and the microphone 7 may be in a normally-on state; further, when the tactical headset includes the microphone 7, the tactical headset may further include a microphone start key 81 electrically connected to the microphone 7, and when the user presses the start key 81, the microphone 7 starts to operate. The tactical headset may further include a control handle 8, the control handle 8 may be connected to the microphone cradle cavity 6 through a shielded cable, the processor may be disposed in the control handle 8, and the control handle may further be disposed with a switch key 82, a mode switch key 83, an input gain increase key 84, an input gain decrease key 85, a switch indicator, an electric quantity indicator, a mode indicator, and a microphone start key 81, where explanations of the switch key 82, the mode switch key 83, the input gain increase key 84, the input gain decrease key 85, the switch indicator, the electric quantity indicator, the mode indicator, and the microphone start key 81 may refer to explanations of corresponding parts in the foregoing method embodiments, and thus, descriptions thereof are omitted. The tactical headset can further comprise a connector plug 9, the connector plug 9 can be connected with the control handle 8 through a shielding spring wire, the connector plug 9 can be customized according to the needs of a user, and the connector plug 9 can be used for being connected with various communication devices (such as radio stations and handsets) to achieve communication of the tactical headset.
The feedforward microphone 1 may be provided on the outer surface of the earshell 4, or may be provided on the outer surface of the tactical headset at a position other than the earshell 4.
Optionally, the earmuff 4 includes a front cavity 401, a middle cavity 402, a rear cavity 403, and a rear cover 404 to form a four-layer passive noise reduction structure;
a first cavity is arranged in the middle cavity 402, and the middle cavity 402 is provided with a first side and a second side which are oppositely arranged; the front cavity 401 is positioned at the first side of the middle cavity 402, and the front cavity 401 is connected with the middle cavity 402 and forms a second cavity with the middle cavity 402 in a surrounding manner; the rear cavity 403 is located at a second side of the middle cavity 402, and the rear cavity 403 is connected with the middle cavity 402 and encloses with the middle cavity 402 to form a third cavity; the rear cover 404 is located on the second side of the middle cavity 402, the rear cover 404 is connected with the middle cavity 402, and the rear cover 404, the middle cavity 402 and the rear cavity 403 enclose to form a fourth cavity;
the feedforward microphone 1 is disposed on the outer surface of the rear cover 404;
the feedback microphone 2 and the speaker 3 are both disposed in the first cavity, and the sound emitting side of the speaker 3 is disposed toward the front cavity 401.
The connection between the front cavity 401 and the middle cavity 402 may be the adhesion or the screw connection between the front cavity 401 and the middle cavity 402; the connection between the rear cavity 403 and the middle cavity 402 may be the adhesion or the screw connection between the rear cavity 403 and the middle cavity 402; the connection between the rear cover 404 and the middle cavity 402 may be a bonding or screwing process between the rear cover 404 and the middle cavity 402.
In order to further improve the sound effect and protect the devices inside the earmuff 4, the end of the front cavity 401 far away from the middle cavity 402 may be sequentially provided with tuning cotton 11 and a sound filtering net 12, the second cavity may be provided with sound absorbing foam 13, and the rear cover 404 may be provided with a tuning baffle 14. The surface of the feedforward microphone 1 for collecting sound may be disposed away from the rear cover 404 to collect sound outside the ear shell 4.
Like this, because the passive structure of making an uproar of falling of four layers that the earlap formed has better physics noise insulation ability to make external noise more difficult to get into the earlap inside, and then can make the ability of making an uproar of falling of tactical earphone better. The active noise reduction and the passive noise reduction are combined, so that the noise reduction frequency range of the tactical headset is wider.
Optionally, in order to further improve the noise reduction capability, an ear pad 15 may be further disposed at an end edge of the end of the front cavity 401 far from the middle cavity 402, and the ear pad 15 may be a silicone gel ear pad.
Like this, can increase the travelling comfort when the user wears through setting up the ear pad on the one hand, on the other hand can play noise reduction effect. Especially when adopting the silica gel ear pad, because the silica gel ear pad material is soft, can get better with user's facial laminating, therefore can make the concha have better physics and separate the ability of making an uproar, and then can further improve the ability of making an uproar of falling of tactics earphone.
Optionally, in order to further improve the noise reduction capability, a sealing member 16 (e.g., a sealing ring) may be further disposed at the joint of the middle cavity 402 and the rear cover 404, and the material of the sealing member 16 may be rubber or silicone gel.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (11)
1. A tactical headset control method, wherein the tactical headset is switchable between a first mode, a second mode, and a third mode;
the method comprises the following steps:
a feedforward microphone collects ambient sound;
with the tactical headset in the first mode, a processor processes a first noise in the ambient sound to generate a first inverse noise having a same frequency spectrum as the first noise and an opposite phase, a speaker playing the first inverse noise; and, in case the sound pressure level of the ambient sound is greater than or equal to a first preset sound pressure level, the processor controls the input gain of the feedforward microphone to increase to a first preset value to increase the noise reduction amount of the feedforward noise reduction;
when the tactical headset is in the second mode, the processor separates out sound in a preset vocal range from the environmental sound, and the loudspeaker plays the sound in the preset vocal range;
with the tactical headset in the third mode, the processor amplifies the ambient sound for playback through the speaker.
2. The method of claim 1, wherein with the tactical headset in the first mode, the method further comprises:
the feedback microphone collects sound at the vibrating diaphragm;
the processor processes second noise in sound at the diaphragm to generate second reverse noise which has the same frequency spectrum and opposite phase with the second noise, and the loudspeaker plays the second reverse noise simultaneously when playing the first reverse noise.
3. The method of claim 1, wherein with the tactical headset in the second mode, the method further comprises:
the feedback microphone collects sound at the vibrating diaphragm;
the processor processes second noise in sound at the diaphragm to generate second reverse noise which has the same frequency spectrum as the second noise and is opposite in phase, and the loudspeaker plays the second reverse noise simultaneously when playing sound in the human voice frequency band.
4. The method of claim 1, wherein with the tactical headset in the third mode, the method further comprises:
the processor controls the feedback microphone to stop working.
5. The method of claim 1, wherein with the tactical headset in the second mode, the method further comprises:
the processor controls the input gain of the feedforward microphone to be increased to a second preset value so as to increase the sound of the human voice frequency band.
6. The method of claim 1, wherein with the tactical headset in the third mode, the method further comprises:
the processor controls an input gain of the feedforward microphone to increase to a third preset value to increase the ambient sound.
7. The method of claim 1 or 2, wherein in case the tactical headset is in a target mode, the method further comprises:
the processor controls the tactical headset to switch from the target mode to the first mode if the sound pressure level of the ambient sound is greater than or equal to a second preset sound pressure level;
the target mode is the second mode or the third mode.
8. The method of claim 7, further comprising:
the processor controls the tactical headset to switch from the first mode to the target mode if a sound pressure level of the ambient sound is less than or equal to a third preset sound pressure level.
9. A tactical headset comprising a feedforward microphone, a feedback microphone, a speaker and a processor electrically connected to the feedforward microphone, the feedback microphone and the speaker, respectively;
the tactical headset processes sound using the tactical headset control method of any of claims 1 to 8.
10. The tactical headset of claim 9, further comprising an earshell, said earshell being provided with a passive noise reduction structure;
the feedforward microphone is arranged on the outer surface of the ear shell;
the feedback microphone with the speaker all set up in the concha, just the feedback microphone is located the sound production side of speaker.
11. The tactical headset of claim 10, wherein the earshell comprises a front cavity, a middle cavity, a back cavity, and a back cover to form a four-layer passive noise reduction structure;
the middle cavity is internally provided with a first cavity, and the middle cavity is provided with a first side and a second side which are oppositely arranged; the front cavity is positioned on the first side of the middle cavity, and the front cavity is connected with the middle cavity and encloses with the middle cavity to form a second cavity; the rear cavity is positioned on the second side of the middle cavity, and the rear cavity is connected with the middle cavity and forms a third cavity by being surrounded with the middle cavity; the rear cover is positioned on the second side of the middle cavity and connected with the middle cavity, and the rear cover, the middle cavity and the rear cavity enclose to form a fourth cavity;
the feedforward microphone is arranged on the outer surface of the rear cover;
the feedback microphone with the speaker all set up in the first cavity, the sound production side orientation of speaker the front chamber body sets up.
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| CN201811589518.8A CN111372155B (en) | 2018-12-25 | 2018-12-25 | Tactical earphone control method and tactical earphone |
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| CN112055279A (en) * | 2020-09-10 | 2020-12-08 | 江苏紫米电子技术有限公司 | Earphone noise reduction method and device, earphone and medium |
| CN113099340B (en) * | 2021-03-23 | 2023-06-23 | 中山大学附属口腔医院 | Noise reduction method and device based on noise of dental office |
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| CN104735232B (en) * | 2013-12-18 | 2018-08-31 | 深圳桑菲消费通信有限公司 | A kind of method and apparatus for realizing function of hearing aid on mobile terminals |
| CN104618829A (en) * | 2014-12-29 | 2015-05-13 | 歌尔声学股份有限公司 | Adjusting method of earphone environmental sound and earphone |
| FR3044197A1 (en) * | 2015-11-19 | 2017-05-26 | Parrot | AUDIO HELMET WITH ACTIVE NOISE CONTROL, ANTI-OCCLUSION CONTROL AND CANCELLATION OF PASSIVE ATTENUATION, BASED ON THE PRESENCE OR ABSENCE OF A VOICE ACTIVITY BY THE HELMET USER. |
| KR101756674B1 (en) * | 2016-05-27 | 2017-07-25 | 주식회사 이엠텍 | Active noise reduction headset device with hearing aid features |
| CN107517415B (en) * | 2016-06-16 | 2024-06-07 | 江西斐耳科技有限公司 | Intelligent earphone |
| CN108847208B (en) * | 2018-05-04 | 2020-11-27 | 歌尔科技有限公司 | Noise reduction processing method and device and earphone |
| CN108769857A (en) * | 2018-06-26 | 2018-11-06 | 会听声学科技（北京）有限公司 | sound compensation method, system and earphone |
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