CN112969123B - Noise-reduction type music Bluetooth headset and noise reduction method thereof - Google Patents
Noise-reduction type music Bluetooth headset and noise reduction method thereof Download PDFInfo
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- 238000007619 statistical method Methods 0.000 claims abstract description 16
- 230000005236 sound signal Effects 0.000 claims description 35
- 238000004364 calculation method Methods 0.000 claims description 5
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- 230000001276 controlling effect Effects 0.000 description 8
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
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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
- H04R1/1041—Mechanical or electronic switches, or control elements
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
- H04R2430/01—Aspects of volume control, not necessarily automatic, in sound systems
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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
- H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
- H04R2460/01—Hearing devices using active noise cancellation
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- 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
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- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
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Abstract
The invention discloses a noise-reducing music Bluetooth headset, which utilizes an internal sound acquisition unit to acquire a sound information set in the headset; collecting a noise information set outside the earphone by using an external sound collecting unit; receiving the sound information set and the noise information set by using a data processing module and performing processing operation; analyzing the received data by using a statistical analysis module to obtain an internal sound value of the internal sound and an external noise value of the external noise; the method comprises the steps that an adjusting control module is used for receiving an internal sound value and an external noise value to analyze and generate a regulating signal set, regulating sound waves are generated by the regulating signal set, and the regulating sound waves are broadcasted according to noise phase data; the invention also discloses a noise reduction method of the noise reduction type music Bluetooth headset, which solves the problems that in the prior art, the volume cannot be adaptively adjusted according to the wearing of the headset by different users, so that the listening feeling is poor due to the fact that the volume is unsuitable for the first time, and the noise reduction effect on external sound is poor.
Description
Technical Field
The invention relates to the technical field of headphones, in particular to a noise reduction type music Bluetooth headphone and a noise reduction method thereof.
Background
The noise-reducing earphone is one earphone for reducing noise by using a certain method, and two types of noise-reducing earphones are respectively: active noise reduction headphones and passive noise reduction headphones.
The active noise reduction function is to generate reverse sound waves equal to external noise through a noise reduction system and neutralize the noise, so that the noise reduction effect is realized; the passive noise reduction earphone mainly forms a closed space by surrounding ears, or adopts sound insulation materials such as a silica gel earplug and the like to block external noise.
However, the existing noise reduction type music bluetooth headset has the following defects: the problem that the hearing feeling is poor due to the fact that the volume is not suitable for the first time when the earphone is worn by different users can not be solved through self-adaptive volume adjustment, and the problem that the noise reduction effect on external sound is poor can be solved.
Disclosure of Invention
The invention aims to provide a noise reduction type music Bluetooth headset and a noise reduction method thereof, and mainly aims to solve the problems that the volume cannot be adaptively adjusted according to wearing of the headset by different users, so that the hearing feeling is poor due to unsuitable primary wearing volume, and the noise reduction effect on external sound is poor.
The aim of the invention can be achieved by the following technical method: a noise reduction type music Bluetooth headset comprises a sound acquisition module, a data processing module, a statistical analysis module and an adjustment control module;
the sound collection module comprises an internal sound collection unit and an external sound collection unit, wherein the internal sound collection unit is used for collecting a sound information set in the earphone, and the sound information set comprises sound loudness information and sound tone information; the external sound collecting unit is used for collecting a noise information set outside the earphone, wherein the noise information set comprises noise amplitude information, noise frequency information, noise wavelength information and noise phase information; the collected sound information set and the noise information set are sent to a data processing module together;
the data processing module is used for receiving the sound information set and the noise information set and performing processing operation to obtain sound loudness data, sound tone data, noise amplitude data, noise frequency data, noise wavelength data and noise phase data, and sending the sound loudness data, the sound tone data, the noise amplitude data, the noise frequency data, the noise wavelength data and the noise phase data to the statistical analysis module together;
the statistical analysis module is used for analyzing and operating the received sound loudness data, sound tone data, noise amplitude data, noise frequency data, noise wavelength data and noise phase data to obtain an internal sound value of the internal sound and an external noise value of the external noise, and sending the internal sound value and the external noise value to the regulation control module;
the adjusting control module is used for receiving the internal sound value and the external noise value, analyzing and generating a regulating and controlling signal set, generating regulating and controlling sound waves by utilizing the regulating and controlling signal set, and broadcasting the regulating and controlling sound waves according to the noise phase data.
Further, the specific steps of the data processing module for receiving the sound information set and the noise information set and performing processing operation include:
s21: receiving a sound information set and a noise information set, and acquiring sound loudness information and sound tone information in the sound information set;
s22: setting the real-time sound loudness and the total occurrence times of the real-time sound loudness in the sound loudness information as sound loudness data, and marking the real-time sound loudness as SSX i I=1, 2..n; marking the total number of occurrences of the loudness of real-time sound as SXC i ,i＝1,2...n；
S23：Setting the real-time voice tone in the voice tone information and the total number of occurrences thereof as voice tone data, and marking the real-time voice tone as SSD i I=1, 2..n; marking the total number of occurrences of real-time voice tones as SDC i ,i＝1,2...n；
S24: acquiring noise amplitude information, noise frequency information, noise wavelength information and noise phase information in the noise information set, setting real-time noise amplitude in the noise amplitude information as noise amplitude data, and marking the real-time noise amplitude as SZF i I=1, 2..n; setting the real-time noise frequency in the noise frequency information as noise frequency data, and marking the real-time noise frequency as SZP i I=1, 2..n; setting the real-time noise wavelength in the noise wavelength information as noise wavelength data, and marking the real-time noise wavelength as SZB i ,i＝1,2...n；
S25: setting the real-time noise phase in the noise phase information as noise phase data, and marking the real-time noise phase as SXW i I=1, 2..n; setting the direction of real-time noise phase propagation as noise direction data, and marking the noise direction data as ZFX i ,i＝1,2...n。
Further, the specific steps of the analysis operation of the statistical analysis module comprise:
s31: acquiring real-time sound loudness SSX for mark processing i Total number of occurrences SXC of real-time sound loudness i Real-time voice tone SSD i And total number of real-time tone occurrences SDC i ；
S32: and calculating and acquiring an internal sound value of the internal sound by using a formula, wherein the formula is as follows:
wherein Q is ny Expressed as internal sound value, g 1 、g 2 、g 3 And g 4 Expressed as different scaling factors, mu is expressed as a preset internal sound correction factor,expressed as a preset maximum sound loudness, ZC i Expressed as total number of times of internal reception of sound, +.>Expressed as a preset maximum sound tone;
s33: acquiring real-time noise amplitude SZF of marking process i Real-time noise frequency SZP i Real-time noise wavelength SZB i And real-time noise phase SXW i The external noise value of the external noise is obtained by calculation according to the formula:
wherein Q is wz Expressed as an external noise value, a 1 、a 2 、a 3 、a 4 Expressed as different scaling factors, beta is expressed as a preset external noise correction factor,expressed as a preset standard noise amplitude +.>Expressed as a preset standard noise frequency, +.>Expressed as a preset standard noise wavelength, +.>Represented as a preset standard noise phase.
Further, the adjusting control module is used for receiving the internal sound value and the external noise value to analyze and generate a regulating signal set, and the specific steps include:
s41: receiving an internal sound value and an external noise value for analysis;
s42: matching the internal sound value with a preset standard internal sound threshold, and if the internal sound value is not greater than the standard internal sound threshold, judging that a user wearing the earphone is not replaced, and generating a first internal sound signal without adjustment;
if the internal sound value is larger than the standard internal sound threshold value, judging that the user wearing the earphone has replacement need to be adjusted and generating a second internal sound signal; according to the second internal sound signal, adjusting the volume of the earphone to a preset default volume; combining the first internal sound signal and the second internal sound signal to obtain an internal sound signal set;
s43: matching the external noise value with a preset standard external noise threshold, and if the external noise value is not greater than the standard external noise threshold, judging that the noise is in a preset noise reduction range and needing to be subjected to noise reduction to generate a first external noise signal;
if the external noise value is larger than the standard external noise threshold value, judging that the noise is not in the preset noise reduction range and generating a second external noise signal without noise reduction; combining the first external noise signal and the second external noise signal to obtain an external noise signal set;
s44: and combining the internal sound signal set and the external noise signal set to obtain a regulation signal set.
Further, the regulation and control signal set is utilized to generate regulation and control sound waves, the regulation and control sound waves are broadcasted according to noise phase data, and the specific steps comprise:
s51: receiving and analyzing the regulation signal set;
s52: if the regulating signal set contains a first external noise signal, setting a real-time noise amplitude value in the noise amplitude information as a regulating amplitude, setting a real-time noise frequency value in the noise frequency information as a regulating frequency, setting a real-time noise wavelength value in the noise wavelength information as a regulating sound wavelength, setting the opposite number of the real-time noise phase value in the noise phase information as a regulating phase, and combining the regulating amplitude, the regulating frequency, the regulating sound wavelength and the regulating phase to obtain a regulating sound wave;
s53: the transmission direction of the noise information concentrated noise is acquired and set as a standard direction, the opposite direction of the standard direction is set as a noise reduction direction, and the regulated sound wave is transmitted and broadcast according to the noise reduction direction.
A noise reduction method of a noise reduction type music Bluetooth headset comprises the following specific steps:
step one: collecting a sound information set inside the earphone and a noise information set outside the earphone, wherein the sound information set comprises sound loudness information and sound tone information; the noise information set includes noise amplitude information, noise frequency information, noise wavelength information, and noise phase information;
step two: processing the sound information set and the noise information set to obtain a sound information processing set and a noise information processing set, wherein the sound information processing set comprises sound loudness data and sound tone data; the noise information processing set comprises noise amplitude data, noise frequency data, noise wavelength data and noise phase data;
step three: analyzing the sound information processing set and the noise information processing set to obtain an internal sound value of internal sound and an external noise value of external noise;
step four: analyzing the internal sound value and the external noise value to generate a regulation signal set, comprising:
matching the internal sound value with a preset standard internal sound threshold, and if the internal sound value is not greater than the standard internal sound threshold, judging that a user wearing the earphone is not replaced, and generating a first internal sound signal without adjustment; if the internal sound value is larger than the standard internal sound threshold value, judging that the user wearing the earphone has replacement need to be adjusted and generating a second internal sound signal; according to the second internal sound signal, adjusting the volume of the earphone to a preset default volume; combining the first internal sound signal and the second internal sound signal to obtain an internal sound signal set;
matching the external noise value with a preset standard external noise threshold, and if the external noise value is not greater than the standard external noise threshold, judging that the noise is in a preset noise reduction range and needing to be subjected to noise reduction to generate a first external noise signal; if the external noise value is larger than the standard external noise threshold value, judging that the noise is not in the preset noise reduction range and generating a second external noise signal without noise reduction; combining the first external noise signal and the second external noise signal to obtain an external noise signal set;
combining the inner sound signal set and the outer noise signal set to obtain a regulation signal set;
step five: and generating a regulating sound wave by using the regulating signal set, and broadcasting the regulating sound wave according to the noise phase data.
The invention has the beneficial effects that:
according to various aspects of the invention, a sound collection module comprises an internal sound collection unit and an external sound collection unit, and the internal sound collection unit is utilized to collect a sound information set inside the earphone, wherein the sound information set comprises sound loudness information and sound tone information; collecting a noise information set outside the earphone by using an external sound collecting unit, wherein the noise information set comprises noise amplitude information, noise frequency information, noise wavelength information and noise phase information; by collecting and processing the internal sound data and the external sound data of the earphone, effective data support can be realized for volume adjustment and noise reduction of the earphone;
receiving the sound information set and the noise information set by using a data processing module and performing processing operation; the efficiency and accuracy of calculation among the data can be improved by processing the collected data;
analyzing the received data by using a statistical analysis module to obtain an internal sound value of the internal sound and an external noise value of the external noise, and sending the internal sound value and the external noise value to an adjustment control module; the processed data are analyzed, so that the data can be connected to obtain the associated internal sound value and external noise value, and reliable data support is provided for volume adjustment and noise reduction;
the method comprises the steps that an adjusting control module is used for receiving an internal sound value and an external noise value to analyze and generate a regulating signal set, regulating sound waves are generated by the regulating signal set, and the regulating sound waves are broadcasted according to noise phase data; the purpose of overcoming poor hearing caused by improper primary wearing volume can be achieved by adaptively adjusting the volume according to the wearing time of the earphone by different users, and the purpose of improving the noise reduction effect can be achieved.
Drawings
The invention is further described below with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of a noise reduction type music bluetooth headset according to the present invention.
Detailed Description
The technical method according to the embodiments of the present invention will be clearly and completely described in the following description with reference to the drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1, the invention is a noise reduction type music bluetooth headset, which comprises a sound collection module, a data processing module, a statistical analysis module and an adjustment control module;
the sound collection module comprises an internal sound collection unit and an external sound collection unit, wherein the internal sound collection unit is used for collecting a sound information set in the earphone, and the sound information set comprises sound loudness information and sound tone information; the external sound collecting unit is used for collecting a noise information set outside the earphone, wherein the noise information set comprises noise amplitude information, noise frequency information, noise wavelength information and noise phase information; the collected sound information set and the noise information set are sent to a data processing module together;
the data processing module is used for receiving the sound information set and the noise information set and performing processing operation to obtain sound loudness data, sound tone data, noise amplitude data, noise frequency data, noise wavelength data and noise phase data, and sending the sound loudness data, the sound tone data, the noise amplitude data, the noise frequency data, the noise wavelength data and the noise phase data to the statistical analysis module together;
the statistical analysis module is used for analyzing and operating the received sound loudness data, sound tone data, noise amplitude data, noise frequency data, noise wavelength data and noise phase data to obtain an internal sound value of the internal sound and an external noise value of the external noise, and sending the internal sound value and the external noise value to the regulation control module;
the adjusting control module is used for receiving the internal sound value and the external noise value, analyzing and generating a regulating and controlling signal set, generating regulating and controlling sound waves by utilizing the regulating and controlling signal set, and broadcasting the regulating and controlling sound waves according to the noise phase data.
The data processing module is used for receiving the sound information set and the noise information set and performing processing operation, and the specific steps comprise:
receiving a sound information set and a noise information set, and acquiring sound loudness information and sound tone information in the sound information set;
setting the real-time sound loudness and the total occurrence times of the real-time sound loudness in the sound loudness information as sound loudness data, and marking the real-time sound loudness as SSX i I=1, 2..n; marking the total number of occurrences of the loudness of real-time sound as SXC i ,i＝1,2...n；
Setting the real-time voice tone in the voice tone information and the total number of occurrences thereof as voice tone data, and marking the real-time voice tone as SSD i I=1, 2..n; marking the total number of occurrences of real-time voice tones as SDC i ,i＝1,2...n；
Acquiring noise amplitude information, noise frequency information, noise wavelength information and noise phase information in the noise information set, setting real-time noise amplitude in the noise amplitude information as noise amplitude data, and marking the real-time noise amplitude as SZF i I=1, 2..n; setting the real-time noise frequency in the noise frequency information as noise frequency data, and marking the real-time noise frequency as SZP i I=1, 2..n; setting the real-time noise wavelength in the noise wavelength information as noise wavelength data, and marking the real-time noise wavelength as SZB i ,i＝1,2...n；
Setting the real-time noise phase in the noise phase information as noise phase data, and marking the real-time noise phase as SXW i I=1, 2..n; setting the direction of real-time noise phase propagation as noise direction data, and marking the noise direction data as ZFX i ,i＝1,2...n。
The specific steps of the analysis operation of the statistical analysis module comprise:
acquiring real-time sound loudness SSX for mark processing i Total number of occurrences SXC of real-time sound loudness i Real-time voice tone SSD i And total number of real-time tone occurrences SDC i ；
And calculating and acquiring an internal sound value of the internal sound by using a formula, wherein the formula is as follows:
wherein Q is ny Expressed as internal sound value, g 1 、g 2 、g 3 And g 4 Expressed as different scaling factors, mu is expressed as a preset internal sound correction factor,expressed as a preset maximum sound loudness, ZC i Expressed as total number of times of internal reception of sound, +.>Expressed as a preset maximum sound tone;
s33: acquiring real-time noise amplitude SZF of marking process i Real-time noise frequency SZP i Real-time noise wavelength SZB i And real-time noise phase SXW i The external noise value of the external noise is obtained by calculation according to the formula:
wherein Q is wz Expressed as an external noise value, a 1 、a 2 、a 3 、a 4 Expressed as different scaling factors, beta is expressed as a preset external noise correction factor,expressed as a preset standard noise amplitude +.>Expressed as a preset standard noise frequency, +.>Expressed as a preset standard noise wavelength, +.>Represented as a preset standard noise phase.
The adjusting control module is used for receiving the internal sound value and the external noise value to analyze and generate a regulating signal set, and the specific steps comprise:
receiving an internal sound value and an external noise value for analysis;
matching the internal sound value with a preset standard internal sound threshold, and if the internal sound value is not greater than the standard internal sound threshold, judging that a user wearing the earphone is not replaced, and generating a first internal sound signal without adjustment;
if the internal sound value is larger than the standard internal sound threshold value, judging that the user wearing the earphone has replacement need to be adjusted and generating a second internal sound signal; according to the second internal sound signal, adjusting the volume of the earphone to a preset default volume; combining the first internal sound signal and the second internal sound signal to obtain an internal sound signal set;
in the embodiment of the invention, the internal sound value is analyzed with the preset standard internal sound threshold value to be used for matching and judging whether the wearing of the earphone is the original user, if not, the volume of the earphone is adjusted to adapt to the replaced user, so that the aim of self-adapting volume adjustment according to different users to avoid bad hearing caused by improper primary wearing volume is achieved;
matching the external noise value with a preset standard external noise threshold, and if the external noise value is not greater than the standard external noise threshold, judging that the noise is in a preset noise reduction range and needing to be subjected to noise reduction to generate a first external noise signal;
if the external noise value is larger than the standard external noise threshold value, judging that the noise is not in the preset noise reduction range and generating a second external noise signal without noise reduction; combining the first external noise signal and the second external noise signal to obtain an external noise signal set;
combining the inner sound signal set and the outer noise signal set to obtain a regulation signal set;
in the embodiment of the invention, the external noise value and the preset standard external noise threshold value are used for analyzing and reducing the noise of external sound, wherein the effective upper limit range of the noise reduction frequency band is hundreds of Hz, if the external sound exceeds the upper limit of the noise reduction frequency band, the noise reduction is not carried out, for example, the human voice or the loudspeaker voice is not processed, and the purpose of improving the noise reduction effect is achieved;
generating a regulating sound wave by using a regulating signal set, broadcasting the regulating sound wave according to noise phase data, wherein the specific steps comprise:
receiving and analyzing the regulation signal set;
if the regulating signal set contains a first external noise signal, setting a real-time noise amplitude value in the noise amplitude information as a regulating amplitude, setting a real-time noise frequency value in the noise frequency information as a regulating frequency, setting a real-time noise wavelength value in the noise wavelength information as a regulating sound wavelength, setting the opposite number of the real-time noise phase value in the noise phase information as a regulating phase, and combining the regulating amplitude, the regulating frequency, the regulating sound wavelength and the regulating phase to obtain a regulating sound wave;
the transmission direction of the noise information concentrated noise is acquired and set as a standard direction, the opposite direction of the standard direction is set as a noise reduction direction, and the regulated sound wave is transmitted and broadcast according to the noise reduction direction.
Example two
A noise reduction method of a noise reduction type music Bluetooth headset comprises the following specific steps:
step one: collecting a sound information set inside the earphone and a noise information set outside the earphone, wherein the sound information set comprises sound loudness information and sound tone information; the noise information set includes noise amplitude information, noise frequency information, noise wavelength information, and noise phase information;
step two: processing the sound information set and the noise information set to obtain a sound information processing set and a noise information processing set, wherein the sound information processing set comprises sound loudness data and sound tone data; the noise information processing set comprises noise amplitude data, noise frequency data, noise wavelength data and noise phase data;
step three: analyzing the sound information processing set and the noise information processing set to obtain an internal sound value of internal sound and an external noise value of external noise;
step four: analyzing the internal sound value and the external noise value to generate a regulation signal set, comprising:
matching the internal sound value with a preset standard internal sound threshold, and if the internal sound value is not greater than the standard internal sound threshold, judging that a user wearing the earphone is not replaced, and generating a first internal sound signal without adjustment; if the internal sound value is larger than the standard internal sound threshold value, judging that the user wearing the earphone has replacement need to be adjusted and generating a second internal sound signal; according to the second internal sound signal, adjusting the volume of the earphone to a preset default volume; combining the first internal sound signal and the second internal sound signal to obtain an internal sound signal set;
matching the external noise value with a preset standard external noise threshold, and if the external noise value is not greater than the standard external noise threshold, judging that the noise is in a preset noise reduction range and needing to be subjected to noise reduction to generate a first external noise signal; if the external noise value is larger than the standard external noise threshold value, judging that the noise is not in the preset noise reduction range and generating a second external noise signal without noise reduction; combining the first external noise signal and the second external noise signal to obtain an external noise signal set;
step five: combining the inner sound signal set and the outer noise signal set to obtain a regulation signal set;
and generating a regulating sound wave by using the regulating signal set, and broadcasting the regulating sound wave according to the noise phase data.
The working principle of the invention is as follows: according to the embodiment of the invention, through the cooperation among the sound collection module, the data processing module, the statistical analysis module and the adjustment control module, the purpose of overcoming poor hearing caused by improper primary wearing volume can be achieved by adaptively adjusting the volume according to the wearing of the earphone by different users, and the purpose of improving the noise reduction effect can be achieved; the sound collection module comprises an internal sound collection unit and an external sound collection unit, and the internal sound collection unit is used for collecting a sound information set in the earphone, wherein the sound information set comprises sound loudness information and sound tone information; collecting a noise information set outside the earphone by using an external sound collecting unit, wherein the noise information set comprises noise amplitude information, noise frequency information, noise wavelength information and noise phase information; by collecting and processing the internal sound data and the external sound data of the earphone, effective data support can be realized for volume adjustment and noise reduction of the earphone;
receiving the sound information set and the noise information set by using a data processing module and performing processing operation; the efficiency and accuracy of calculation among the data can be improved by processing the collected data;
the statistical analysis module is used for analyzing and operating the received data, and the formula is used for
Calculating and obtaining an internal sound value of the internal sound; using the formula
Calculating and obtaining an external noise value of external noise, and sending the internal noise value and the external noise value to an adjusting control module; the processed data are analyzed, so that the data can be connected to obtain the associated internal sound value and external noise value, and reliable data support is provided for volume adjustment and noise reduction;
the method comprises the steps that an adjusting control module is used for receiving an internal sound value and an external noise value to analyze and generate a regulating signal set, regulating sound waves are generated by the regulating signal set, and the regulating sound waves are broadcasted according to noise phase data; through analyzing and screening outside sound, the sound that will fall the noise carries out the initiative and falls the noise, filters the sound that will not fall the noise, can realize carrying out the initiative to the external noise and screening and the purpose of falling the noise.
In the several embodiments provided in the present invention, it should be understood that the disclosed apparatus, device and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules is merely a logical function division, and there may be other manners of division when actually implemented.
The modules described as separate components may or may not be physically separate, and components shown as modules may or may not be physical units, may be located in one place, or may be distributed over multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the method of this embodiment.
In addition, each functional module in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units can be realized in a form of hardware or a form of hardware and a form of software functional modules.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.
The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims shall not be construed as limiting the claim concerned.
Furthermore, it is evident that the word "comprising" does not exclude other elements or steps, and that the singular does not exclude a plurality. Multiple units or means stated in the system may also be implemented by one unit or means, either by software or hardware. The terms second, etc. are used to denote a name, but not any particular order.
Finally, it should be noted that the above embodiments are only for illustrating the technical method of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical method of the present invention may be modified or substituted without departing from the spirit and scope of the technical method of the present invention.
Claims (4)
1. The noise reduction type music Bluetooth headset is characterized by comprising a sound acquisition module, a data processing module, a statistical analysis module and an adjustment control module;
the sound collection module comprises an internal sound collection unit and an external sound collection unit, wherein the internal sound collection unit is used for collecting a sound information set in the earphone, and the sound information set comprises sound loudness information and sound tone information; the external sound collecting unit is used for collecting a noise information set outside the earphone, wherein the noise information set comprises noise amplitude information, noise frequency information, noise wavelength information and noise phase information; the collected sound information set and the noise information set are sent to a data processing module together;
the data processing module is used for receiving the sound information set and the noise information set and performing processing operation to obtain sound loudness data, sound tone data, noise amplitude data, noise frequency data, noise wavelength data and noise phase data, and sending the sound loudness data, the sound tone data, the noise amplitude data, the noise frequency data, the noise wavelength data and the noise phase data to the statistical analysis module together;
the statistical analysis module is used for analyzing and operating the received sound loudness data, sound tone data, noise amplitude data, noise frequency data, noise wavelength data and noise phase data to obtain an internal sound value of the internal sound and an external noise value of the external noise, and sending the internal sound value and the external noise value to the regulation control module;
the adjusting control module is used for receiving the internal sound value and the external noise value, analyzing the internal sound value and the external noise value to generate a regulating signal set, generating a regulating sound wave by using the regulating signal set, and broadcasting the regulating sound wave according to the noise phase data;
the specific steps of the analysis operation of the statistical analysis module comprise:
s31: acquiring real-time sound loudness SSX for mark processing i Total number of occurrences SXC of real-time sound loudness i Real-time voice tone SSD i And total number of real-time tone occurrences SDC i ；
S32: and calculating and acquiring an internal sound value of the internal sound by using a formula, wherein the formula is as follows:
wherein Q is ny Expressed as internal sound value, g 1 、g 2 、g 3 And g 4 Expressed as different scaling factors, mu is expressed as a preset internal sound correction factor,expressed as a preset maximum sound loudness, ZC i Expressed as total number of times of internal reception of sound, +.>Expressed as a preset maximum sound tone;
s33: acquiring real-time noise amplitude SZF of marking process i Real-time noise frequency SZP i Real-time noise wavelength SZB i And real-time noise phase SXW i The external noise value of the external noise is obtained by calculation according to the formula:
wherein Q is wz Expressed as an external noise value, a 1 、a 2 、a 3 、a 4 Expressed as different scaling factors, beta is expressed as a preset external noise correction factor,expressed as a preset standard noise amplitude +.>Expressed as a preset standard noise frequency, +.>Expressed as a preset standard noise wavelength, +.>Expressed as a preset standard noise phase, i=1, 2.
2. The noise reduction type music bluetooth headset of claim 1, wherein the specific steps of the data processing module for receiving the sound information set and the noise information set and performing the processing operation include:
s21: receiving a sound information set and a noise information set, and acquiring sound loudness information and sound tone information in the sound information set;
s22: setting the real-time sound loudness and the total occurrence times of the real-time sound loudness in the sound loudness information as sound loudness data, and marking the real-time sound loudness as SSX i I=1, 2..n; marking the total number of occurrences of the loudness of real-time sound as SXC i ,i＝1,2...n；
S23: setting the real-time voice tone in the voice tone information and the total number of occurrences thereof as voice tone data, and marking the real-time voice tone as SSD i I=1, 2..n; marking the total number of occurrences of real-time voice tones as SDC i ,i＝1,2...n；
S24: acquiring noise amplitude information, noise frequency information, noise wavelength information and noise phase information in the noise information set, setting real-time noise amplitude in the noise amplitude information as noise amplitude data, and marking the real-time noise amplitude as SZF i I=1, 2..n; setting the real-time noise frequency in the noise frequency information as noise frequency data, and marking the real-time noise frequency as SZP i I=1, 2..n; setting the real-time noise wavelength in the noise wavelength information as noise wavelength data, and marking the real-time noise wavelength as SZB i ,i＝1,2...n；
S25: setting the real-time noise phase in the noise phase information as noise phase data, and marking the real-time noise phase as SXW i I=1, 2..n; phase propagating real-time noiseThe direction is set as noise direction data, and the noise direction data is marked as ZFX i ,i＝1,2...n。
3. The noise reduction type music bluetooth headset of claim 1, wherein the adjusting control module is configured to receive the internal sound value and the external noise value, analyze the internal sound value and the external noise value, and generate the adjusting signal set, and specifically comprises the following steps:
s41: receiving an internal sound value and an external noise value for analysis;
s42: matching the internal sound value with a preset standard internal sound threshold, if the internal sound value is not greater than the standard internal sound threshold, judging that the wearing user of the earphone is not replaced, and generating a first internal sound signal without adjustment;
if the internal sound value is larger than the standard internal sound threshold value, judging that the wearing user of the earphone has replacement, and adjusting and generating a second internal sound signal; according to the second internal sound signal, adjusting the volume of the earphone to a preset default volume; combining the first internal sound signal and the second internal sound signal to obtain an internal sound signal set;
s43: matching the external noise value with a preset standard external noise threshold, if the external noise value is not greater than the standard external noise threshold, judging that the noise is in a preset noise reduction range, and generating a first external noise signal by noise reduction;
if the external noise value is larger than the standard external noise threshold value, judging that the noise is not in the preset noise reduction range, and generating a second external noise signal without noise reduction; combining the first external noise signal and the second external noise signal to obtain an external noise signal set;
s44: and combining the internal sound signal set and the external noise signal set to obtain a regulation signal set.
4. A noise reduction type music bluetooth headset according to claim 3, wherein the adjusting sound wave is generated by using an adjusting signal set, and the adjusting sound wave is broadcasted according to the noise phase data, and the specific steps include:
s51: receiving and analyzing the regulation signal set;
s52: if the regulating signal set contains a first external noise signal, setting a real-time noise amplitude value in the noise amplitude information as a regulating amplitude, setting a real-time noise frequency value in the noise frequency information as a regulating frequency, setting a real-time noise wavelength value in the noise wavelength information as a regulating sound wavelength, setting the opposite number of the real-time noise phase value in the noise phase information as a regulating phase, and combining the regulating amplitude, the regulating frequency, the regulating sound wavelength and the regulating phase to obtain a regulating sound wave;
s53: the transmission direction of the noise information concentrated noise is acquired and set as a standard direction, the opposite direction of the standard direction is set as a noise reduction direction, and the regulated sound wave is transmitted and broadcast according to the noise reduction direction.
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