CN116055935A - Sleep noise reduction earphone and method for automatically adjusting noise reduction level thereof - Google Patents

Sleep noise reduction earphone and method for automatically adjusting noise reduction level thereof Download PDF

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Publication number
CN116055935A
CN116055935A CN202211698792.5A CN202211698792A CN116055935A CN 116055935 A CN116055935 A CN 116055935A CN 202211698792 A CN202211698792 A CN 202211698792A CN 116055935 A CN116055935 A CN 116055935A
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noise reduction
feedforward
noise
module
reduction module
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CN202211698792.5A
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Chinese (zh)
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徐剑波
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Individual
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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
    • H04R1/1058—Manufacture or assembly
    • 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
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; 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; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2410/00—Microphones
    • H04R2410/01—Noise reduction using microphones having different directional characteristics
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

The invention relates to a sleeping noise reduction earphone, which comprises a feedforward microphone, a feedforward noise reduction module, a feedback microphone, a feedback noise reduction module and a noise reduction level control module, wherein the feedforward noise reduction module is used for receiving a feedback signal from a user; the feedforward microphone is used for detecting an environmental noise signal, the noise reduction level control module automatically adjusts the noise reduction intensity of the feedforward noise reduction module and/or the feedforward noise reduction module according to the magnitude of the environmental noise decibel value acquired by the feedforward microphone, and when the environmental noise decibel value acquired by the feedforward microphone is large, the noise reduction intensity of the feedforward noise reduction module and/or the feedforward noise reduction module is automatically improved; otherwise, the noise reduction intensity of the feedforward noise reduction module and/or the feedback noise reduction module is automatically reduced. The invention also provides a method for automatically adjusting the noise reduction level of the sleep noise reduction earphone. By adopting the sleep noise reduction earphone and the method for automatically adjusting the noise reduction level, the wearing comfort of the earphone can be improved, and the compression feeling caused by the large drop of active noise reduction and environmental noise can be avoided; meanwhile, the power consumption of the sleeping noise reduction earphone can be greatly reduced, and the wearing time is prolonged.

Description

Sleep noise reduction earphone and method for automatically adjusting noise reduction level thereof
Technical Field
The invention relates to the field of sleep headphones, in particular to a sleep noise reduction headphone and a method for automatically adjusting noise reduction level thereof.
Background
At present, a plurality of noise reduction earphones appear on the market, and the noise reduction earphone is generally divided into an active noise reduction earphone and a passive noise reduction earphone, wherein the active noise reduction principle is that environmental noise is collected by a noise reduction microphone, and then the noise reduction microphone is used for processing the environmental noise through an active noise reduction (Active Noise Cancellation, ANC) chip to generate a reverse 180-degree phase sound wave, the reverse 180-degree phase sound wave is transmitted to an auditory canal through an earphone loudspeaker and is 180 degrees out of phase with the noise, so that the environmental noise which is supposed to be heard by the human ear is counteracted, and the purpose of noise reduction is achieved. Active noise reduction includes feedforward type single-feed noise reduction, feedforward type single-feed noise reduction and feedforward and feedback type mixed noise reduction. The sleeping noise reduction earphone generally has the function of actively reducing noise, but the existing active noise reduction sleeping earphone has the following defects: 1. when the sleeping noise reduction earphone is used, a user can start or close the active noise reduction function according to self feeling, but when environmental noise is reduced or does not exist in the using process, the active noise reduction function is still in an open state and the original noise reduction intensity is maintained, and because the active noise reduction is excessive, the user can generate a pressing sense when wearing the earphone, so that wearing comfort is affected; 2. when the user starts the active noise reduction function and plays music to mask noise in a noisy environment, in order to mask noise, the played music sound is necessarily larger, and when the environmental noise is reduced in the sleeping process of the user, the music sound with larger volume can influence the sleeping of the user, and even can cause harm to the eardrum of the user; 3. the active noise reduction function is continuously started, and the power consumption of the sleeping noise reduction earphone can be greatly increased.
Disclosure of Invention
The invention aims to provide a method for automatically adjusting the noise reduction level of a sleep noise reduction earphone, which can automatically adjust the noise reduction level of the sleep noise reduction earphone according to the obtained environment noise condition, so that a user does not feel uncomfortable due to the pressing sense caused by the large fall between active noise reduction and environment noise in the wearing process, and meanwhile, the power consumption of the sleep noise reduction earphone can be reduced, and the working time of the sleep noise reduction earphone is prolonged.
In order to achieve the above object, the present invention provides a sleep noise reduction earphone, which comprises a feedforward microphone, a feedforward noise reduction module, a feedforward microphone and a feedforward noise reduction module, wherein the feedforward microphone is connected with the feedforward noise reduction module, and the sleep noise reduction earphone further comprises a noise reduction level control module; the feedforward microphone is used for detecting an environmental noise signal, the noise reduction level control module automatically adjusts the noise reduction intensity of the feedforward noise reduction module and/or the feedforward noise reduction module according to the magnitude of the environmental noise decibel value acquired by the feedforward microphone, and when the environmental noise decibel value acquired by the feedforward microphone is large, the noise reduction intensity of the feedforward noise reduction module and/or the feedforward noise reduction module is automatically improved; otherwise, the noise reduction intensity of the feedforward noise reduction module and/or the feedback noise reduction module is automatically reduced.
According to one embodiment of the invention, a noise decibel value threshold A is preset by a user according to the sensitivity of the user to noise, and when the noise decibel value of the environment detected by the feedforward microphone is greater than or equal to the threshold A, the functions of the feedforward noise reduction module and the feedforward noise reduction module are started at the same time.
According to one embodiment of the invention, the user also sets another noise decibel value threshold B, wherein B is smaller than A, and when the noise decibel value of the environment detected by the feedforward microphone is smaller than or equal to the threshold B, the feedforward noise reduction module and the feedback noise reduction module are closed at the same time; when the feedforward microphone detects that the noise decibel value of the environment is between the intervals (B, A), the noise reduction function of the feedforward noise reduction module is started, but the noise reduction function of the feedforward noise reduction module is not started.
Another object of the present invention is to provide a method for automatically adjusting noise reduction level of a sleep noise reduction earphone, the method comprising: the noise reduction intensity of the feedforward noise reduction module and/or the feedforward noise reduction module is automatically adjusted according to the detected noise decibel value by a feedforward microphone arranged on the sleep noise reduction earphone, and when the noise decibel value of the environment collected by the feedforward microphone is large, the noise reduction intensity of the feedforward noise reduction module and/or the feedforward noise reduction module is automatically improved; otherwise, the noise reduction intensity of the feedforward noise reduction module and/or the feedback noise reduction module is automatically reduced.
According to one embodiment of the invention, a noise decibel value threshold A is preset by a user according to the sensitivity of the user to noise, and when the noise decibel value of the environment detected by the feedforward microphone is greater than or equal to the threshold A, the functions of the feedforward noise reduction module and the feedforward noise reduction module are started at the same time.
According to one embodiment of the invention, the user also sets another noise decibel value threshold B, wherein B is smaller than A, and when the noise decibel value of the environment detected by the feedforward microphone is smaller than or equal to the threshold B, the feedforward noise reduction module and the feedback noise reduction module are closed at the same time; when the feedforward microphone detects that the noise decibel value of the environment is between the intervals (B, A), the noise reduction function of the feedforward noise reduction module is started, but the noise reduction function of the feedforward noise reduction module is not started.
According to one embodiment of the invention, the threshold A is (50 dBA,60 dBA) and the threshold B is (30 dBA,40 dBA).
According to one embodiment of the invention, the threshold A is 55dBA and the threshold B is 35dBA.
According to one embodiment of the invention, when the feedforward microphone detects that the noise decibel value of the environment is smaller than or equal to the threshold value B, and the feedback microphone detects that the sound level of the self-playing audio signal of the sleep noise reduction earphone in the auditory canal of the user is larger than the threshold value B, the self-playing sound of the sleep noise reduction earphone is automatically reduced.
According to one embodiment of the invention, when the feedforward microphone detects the presence of noise at a particular frequency in the environment, the feedforward noise reduction block will directly cancel the noise at that particular frequency.
Compared with the prior art, the method for automatically adjusting the noise reduction level of the sleeping noise reduction earphone has the following advantages:
1. according to the sleep noise reduction earphone, the feedforward noise reduction module and the feedback noise reduction module are automatically adjusted according to the noise reduction intensity of the feedforward microphone to collect the decibel value of the environmental noise, so that the noise reduction intensity of the sleep noise reduction earphone is matched with the noise of the environment, the comfort level of a user wearing the sleep noise reduction earphone is remarkably improved, and the pressure feeling of a wearer cannot be brought due to the large fall of the active noise reduction and the environmental noise.
2. According to the feedforward microphone and the noise thresholds A and B which are preset, the feedforward noise reduction module and the feedback noise reduction module are turned on and off, so that the feedforward noise reduction module and the feedback noise reduction module can be turned on under the condition of reducing unnecessary noise, the power consumption of the sleeping noise reduction earphone is reduced, and the wearing time is prolonged.
3. The sleep noise reduction earphone can also identify environmental noise with specific frequencies, such as snore, wind noise, rain noise and the like, through the feedforward microphone, and the feedforward noise reduction module directly eliminates the noise at the moment, so that the active noise reduction effect is improved.
Drawings
Fig. 1 is a schematic block diagram of a sleep noise reduction earphone of the present invention.
FIG. 2 is a schematic diagram of an embodiment of the present invention.
Detailed Description
The technical scheme of the invention is further described in detail below with reference to the specific embodiments.
As shown in fig. 1, the invention provides a sleep noise reduction earphone, which comprises a feedforward microphone, a feedforward noise reduction module, a feedforward microphone and a feedforward noise reduction module, wherein the feedforward microphone is connected with the feedforward noise reduction module, and the feedforward microphone is connected with the feedforward noise reduction module. The feedforward noise reduction module is mainly characterized in that a feedforward microphone collects noise signals of external environment noise of the earphone, and an earphone loudspeaker is used for playing an opposite-phase signal so as to offset the noise; the main characteristic of the feedback noise reduction module is that the feedback microphone is positioned in the coupling cavity of the earphone and the human ear, and the sound in the coupling cavity of the earphone and the human ear is collected (the sound contains normal music signals and environmental noise and is processed by the noise reduction chip to achieve the purpose of noise reduction). It should be noted that, the sleeping noise reduction earphone further includes conventional components that are most basic in implementing the function of the earphone in the prior art, such as a casing, a PCB board, a bluetooth module, etc., and are not described herein because they are all known to those skilled in the art. The sleeping noise reduction earphone also comprises a noise reduction level control module; the feedforward microphone is used for detecting an environmental noise signal, the noise reduction level control module automatically adjusts the noise reduction intensity of the feedforward noise reduction module and/or the feedforward noise reduction module according to the magnitude of the environmental noise decibel value acquired by the feedforward microphone, and when the environmental noise decibel value acquired by the feedforward microphone is large, the noise reduction intensity of the feedforward noise reduction module and/or the feedforward noise reduction module is automatically improved; otherwise, the noise reduction intensity of the feedforward noise reduction module and/or the feedback noise reduction module is automatically reduced. The adjusting device enables the environmental noise to be matched with the active noise reduction function, solves the problem that the user wears the device to generate a pressing sense, and improves the use comfort.
As shown in fig. 2, another object of the present invention is to provide a method for automatically adjusting noise reduction level of a sleep noise reduction earphone, where the method includes: the noise decibel value in the environment is detected through a feedforward microphone arranged on the sleep noise reduction earphone, the noise reduction intensity of the feedforward noise reduction module and/or the feedforward noise reduction module is automatically adjusted according to the detected noise decibel value, and when the noise decibel value of the environment collected by the feedforward microphone is large, the noise reduction intensity of the feedforward noise reduction module and/or the feedforward noise reduction module is automatically improved; otherwise, the noise reduction intensity of the feedforward noise reduction module and/or the feedback noise reduction module is automatically reduced. The user presets a noise decibel value threshold A according to the sensitivity of the user to noise, and when the noise decibel value of the environment detected by the feedforward microphone is larger than or equal to the threshold A, the functions of the feedforward noise reduction module and the feedback noise reduction module are started at the same time, namely the hybrid active noise reduction is realized. The user also sets another noise decibel value threshold B, wherein B is smaller than A, and when the noise decibel value of the environment detected by the feedforward microphone is smaller than or equal to the threshold B, the feedforward noise reduction module and the feedback noise reduction module are closed at the same time; when the noise decibel value of the environment detected by the feedforward microphone is between the intervals (B, A), the noise reduction function of the feedforward noise reduction module is started, but the noise reduction function of the feedforward noise reduction module is not started, namely the single-feedback active noise reduction is realized. In the embodiment of the invention, the user can set the thresholds A and B according to the own needs, and the adopted mode can be remotely controlled by a mobile phone and also can be set or changed on the sleep noise reduction earphone, which belongs to the protection scope of the invention.
In the embodiment of the invention, the threshold A is (50 dBA,60 dBA), and the preferred threshold A is 55dBA. Threshold B is (30 dBA,40 dBA), preferably threshold B is 35dBA.
According to the embodiment of the invention, when the environmental noise is slowly reduced or eliminated after the user wears the sleep noise reduction earphone, the noise decibel value of the environment detected by the feedforward microphone is smaller than or equal to the threshold value B, and when the noise decibel value of the self-played audio signal of the sleep noise reduction earphone in the auditory canal of the user is larger than the threshold value B detected by the feedback microphone, the self-played sound of the sleep noise reduction earphone is automatically regulated down, so that the influence of the larger played sound on the sleep quality is avoided.
In the embodiment of the invention, in order to improve the noise reduction effect and performance, the sleep noise reduction earphone can directly eliminate some relatively conventional noise, and when the feedforward microphone detects that the noise with specific frequency exists in the environment, the feedforward noise reduction module can directly eliminate the noise with the specific frequency, such as snore, wind and rain sound and the like.
In the sleep noise reduction earphone, the feedforward microphone is used for collecting the decibel value of the environmental noise, and the noise reduction strengths of the feedforward noise reduction module and the feedback noise reduction module are automatically adjusted according to the magnitude of the decibel value of the environmental noise, so that the noise reduction strengths of the sleep noise reduction earphone are matched with the environmental noise, the comfort level of a user wearing the sleep noise reduction earphone is obviously improved, and the pressure feeling is not brought to a wearer due to the large fall of the active noise reduction and the environmental noise. In addition, the invention realizes the opening and closing of the feedforward noise reduction module and the feedback noise reduction module according to the feedforward microphone and the noise threshold values A and B which are preset, so that the opening of the feedforward noise reduction module and the feedback noise reduction module under the unnecessary condition of the noise reduction earphone can be reduced, the power consumption of the sleeping noise reduction earphone is reduced, and the wearing time is prolonged.
While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (10)

1. The sleep noise reduction earphone comprises a feedforward microphone, a feedforward noise reduction module, a feedforward microphone and a feedforward noise reduction module, wherein the feedforward microphone is connected with the feedforward noise reduction module, and the feedforward microphone is connected with the feedforward noise reduction module; the feedforward microphone is used for detecting an environmental noise signal, the noise reduction level control module automatically adjusts the noise reduction intensity of the feedforward noise reduction module and/or the feedforward noise reduction module according to the magnitude of the environmental noise decibel value acquired by the feedforward microphone, and when the environmental noise decibel value acquired by the feedforward microphone is large, the noise reduction intensity of the feedforward noise reduction module and/or the feedforward noise reduction module is automatically improved; otherwise, the noise reduction intensity of the feedforward noise reduction module and/or the feedback noise reduction module is automatically reduced.
2. The sleep noise reduction earphone according to claim 1, wherein a noise decibel value threshold a is preset by a user according to the sensitivity of the user to noise, and when the noise decibel value of the environment detected by the feedforward microphone is greater than or equal to the threshold a, the functions of the feedforward noise reduction module and the feedforward noise reduction module are simultaneously started.
3. The sleep noise reduction earphone according to claim 2, wherein the user further sets another noise decibel value threshold B, and B is smaller than a, and when the feedforward microphone detects that the noise decibel value of the environment is smaller than or equal to the threshold B, the noise reduction functions of the feedforward noise reduction module and the feedforward noise reduction module are simultaneously turned off; when the feedforward microphone detects that the noise decibel value of the environment is between the intervals (B, A), the noise reduction function of the feedforward noise reduction module is started, but the noise reduction function of the feedforward noise reduction module is not started.
4. A method of automatically adjusting noise reduction levels based on the sleep noise reduction headphones of claim 1, the method comprising: the noise reduction intensity of the feedforward noise reduction module and/or the feedforward noise reduction module is automatically adjusted according to the detected noise decibel value by a feedforward microphone arranged on the sleep noise reduction earphone, and when the noise decibel value of the environment collected by the feedforward microphone is large, the noise reduction intensity of the feedforward noise reduction module and/or the feedforward noise reduction module is automatically improved; otherwise, the noise reduction intensity of the feedforward noise reduction module and/or the feedback noise reduction module is automatically reduced.
5. The method for automatically adjusting noise reduction level of a sleep noise reduction earphone according to claim 4, wherein a noise decibel value threshold A is preset by a user according to the sensitivity of the user to noise, and when the noise decibel value of the environment detected by the feedforward microphone is greater than or equal to the threshold A, the functions of the feedforward noise reduction module and the feedback noise reduction module are started at the same time.
6. The method for automatically adjusting the noise reduction level of the sleep noise reduction earphone according to claim 5, wherein the user also sets another noise decibel value threshold B, and B is smaller than a, and when the feedforward microphone detects that the noise decibel value of the environment is smaller than or equal to the threshold B, the feedforward noise reduction module and the feedback noise reduction module are simultaneously turned off; when the feedforward microphone detects that the noise decibel value of the environment is between the intervals (B, A), the noise reduction function of the feedforward noise reduction module is started, but the noise reduction function of the feedforward noise reduction module is not started.
7. The method of automatically adjusting noise reduction levels of a sleep noise reduction earphone of claim 6, wherein the threshold a is (50 dba,60 dba) and the threshold B is (30 dba,40 dba).
8. The method of automatically adjusting noise reduction levels of a sleep noise reduction earphone of claim 7, wherein the threshold a is 55dBA and the threshold B is 35dBA.
9. The method for automatically adjusting the noise reduction level of the sleep noise reduction earphone according to claim 6, wherein when the feedforward microphone detects that the noise decibel value of the environment is smaller than or equal to the threshold value B and the noise decibel value of the sleep noise reduction earphone in the auditory canal of the user is larger than the threshold value B, the sound size of the sleep noise reduction earphone is automatically adjusted.
10. The method of automatically adjusting noise reduction levels of a sleep noise reducing earphone of claim 4, wherein the feedforward noise reduction module directly removes noise of a particular frequency when the feedforward microphone detects the presence of such noise in the environment.
CN202211698792.5A 2022-12-28 2022-12-28 Sleep noise reduction earphone and method for automatically adjusting noise reduction level thereof Pending CN116055935A (en)

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CN202211698792.5A CN116055935A (en) 2022-12-28 2022-12-28 Sleep noise reduction earphone and method for automatically adjusting noise reduction level thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211698792.5A CN116055935A (en) 2022-12-28 2022-12-28 Sleep noise reduction earphone and method for automatically adjusting noise reduction level thereof

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CN116055935A true CN116055935A (en) 2023-05-02

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