CN112969123A - 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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- H—ELECTRICITY
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- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
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- H—ELECTRICITY
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- 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
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- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
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Abstract
The invention discloses a noise reduction type 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 carrying out processing operation; analyzing the received data by using a statistical analysis module to obtain an internal sound value of internal sound and an external noise value of external noise; the regulation 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 regulation signal set, generating a regulation sound wave by using the regulation signal set, and broadcasting the regulation sound wave according to noise phase data; the invention also discloses a noise reduction method of the noise reduction type music Bluetooth headset, and solves the problems that the sound volume cannot be adjusted in a self-adaptive manner according to the condition that different users wear the headset, the hearing sense is not good due to the fact that the sound volume is not suitable for wearing for the first time, and the noise reduction effect of external sound is not good in the conventional scheme.
Description
Technical Field
The invention relates to the technical field of earphones, in particular to a noise reduction type music Bluetooth earphone and a noise reduction method thereof.
Background
The noise reduction earphone is an earphone which reduces noise by using a certain method, and the current noise reduction earphones are divided into two types: 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 to 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 silica gel earplugs and the like to block outside noise.
But the existing noise reduction type music bluetooth headset has the following defects: the problem that the sound volume is not properly adjusted to cause poor listening feeling when the earphone is worn by different users for the first time can not be solved, and the problem that the effect of noise reduction of external sound is poor can not 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 adjusted in a self-adaptive manner when different users wear the headset, the hearing sense is not good due to the fact that the volume is not suitable when the users wear the headset for the first time, and the noise reduction effect of external sound is not good.
The purpose of the invention can be realized 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 acquisition unit is used for acquiring a noise information set outside the earphone, and the noise information set comprises noise amplitude information, noise frequency information, noise wavelength information and noise phase information; sending the collected sound information set and the collected noise information set to a data processing module together;
the data processing module is used for receiving the sound information set and the noise information set and carrying out 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;
the statistical analysis module is used for analyzing 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 internal sound and an external noise value of external noise, and sending the internal sound value and the external noise value to the regulation control module;
the regulation 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 regulation signal set, generating a regulation sound wave by using the regulation signal set, and broadcasting the regulation sound wave 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 the processing operation include:
s21: receiving the sound information set and the noise information set, and acquiring sound loudness information and sound tone information in the sound information set;
s22: setting 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 SSxi, i is 1,2.. n; marking the total number of times of occurrence of the real-time sound loudness as SXCi, i is 1,2.. n;
s23: setting real-time voice tones and the total occurrence times thereof in the voice tone information as voice tone data, and marking the real-time voice tones as SSDi, i being 1,2.. n; marking the total number of occurrences of real-time sound tones as SDCi, 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 SZFi (1, 2.. n); setting real-time noise frequency in the noise frequency information as noise frequency data, and marking the real-time noise frequency as SZPi, i is 1,2.. n; setting real-time noise wavelength in the noise wavelength information as noise wavelength data, and marking the real-time noise wavelength as SZBi, i is 1,2.. n;
s25: setting a real-time noise phase in the noise phase information as noise phase data, and marking the real-time noise phase as SXwi, wherein i is 1,2.. n; the direction of real-time noise phase propagation is set as noise direction data, and the noise direction data is marked as ZFXi, i ═ 1,2.. n.
Further, the specific steps of the analysis operation of the statistical analysis module include:
s31: acquiring real-time sound loudness SSxi, total frequency SXCi of appearance of the real-time sound loudness, real-time sound tone SSDi and total frequency SDCi of appearance of the real-time sound tone after marking;
s32: calculating and acquiring an internal sound value of the internal sound by using a formula, wherein the formula is as follows:
wherein Q isnyExpressed as mediant values, g1, g2, g3 and g4 are expressed as different scaling factors, μ is expressed as a preset mediant modification factor, SSXi0 is expressed as a preset maximum sound loudness, ZCi is expressed as a total number of internally received sounds, SSDi0 is expressed as a preset maximum sound pitch;
s33: acquiring the real-time noise amplitude SZFi, the real-time noise frequency SZPi, the real-time noise wavelength SZBi and the real-time noise phase SXwi which are subjected to marking processing, and calculating and acquiring the external noise value of external noise by using a formula, wherein the formula is as follows:
wherein Q iswzExpressed as an external noise value, a1, a2, a3 and a4 are expressed as different scale factors, beta is expressed as a preset external noise correction factor, SZFi0 is expressed as a preset standard noise amplitude, SZPi0 is expressed as a preset standard noise frequency, SZBi0 is expressed as a preset standard noise wavelength, and SXWi0 is expressed as a preset standard noise phase.
Further, 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 a control 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 value, and if the internal sound value is not greater than the standard internal sound threshold value, judging that a user wearing the earphone is not replaced, does not need to adjust, and generates a first internal sound signal;
if the internal sound value is larger than the standard internal sound threshold value, judging that the user wearing the earphone needs to be adjusted when the user wears the earphone and generating a second internal sound signal; adjusting the volume of the earphone to a preset default volume according to the second internal sound signal; 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 value, and if the external noise value is not greater than the standard external noise threshold value, judging that the noise is in a preset noise reduction range and needing 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 a preset noise reduction range and does not need to be subjected to noise reduction to generate a second external noise signal; 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 and control signal set.
Further, utilize the regulation and control signal set to generate the regulation and control sound wave, broadcast the regulation and control sound wave according to noise phase place data, concrete step includes:
s51: receiving and analyzing a regulation and control signal set;
s52: if the regulation and control signal set comprises a first external noise signal, setting a real-time noise amplitude value in the noise amplitude information as a regulation and control amplitude, setting a real-time noise frequency value in the noise frequency information as a regulation and control frequency, setting a real-time noise wavelength value in the noise wavelength information as a regulation and control sound wavelength, setting an opposite number of a real-time noise phase value in the noise phase information as a regulation and control phase, and combining the regulation and control amplitude, the regulation and control frequency, the regulation and control sound wavelength and the regulation and control phase to obtain a regulation and control sound wave;
s53: acquiring the transmission direction of noise information concentrated noise, setting the transmission direction as a standard direction, setting the opposite direction of the standard direction as a noise reduction direction, and transmitting and broadcasting the regulated sound wave according to the noise reduction direction.
A noise reduction method of a noise reduction type music Bluetooth headset comprises the following specific steps:
the method comprises the following steps: 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 comprises 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 the internal sound and an external noise value of the external noise;
step four: and analyzing the internal sound value and the external noise value to generate a regulation and control signal set, wherein the regulation and control signal set comprises the following steps:
matching the internal sound value with a preset standard internal sound threshold value, and if the internal sound value is not greater than the standard internal sound threshold value, judging that a user wearing the earphone is not replaced, does not need to adjust, and generates a first internal sound signal; if the internal sound value is larger than the standard internal sound threshold value, judging that the user wearing the earphone needs to be adjusted when the user wears the earphone and generating a second internal sound signal; adjusting the volume of the earphone to a preset default volume according to the second internal sound signal; 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 value, and if the external noise value is not greater than the standard external noise threshold value, judging that the noise is in a preset noise reduction range and needing 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 a preset noise reduction range and does not need to be subjected to noise reduction to generate a second external noise signal; combining the first external noise signal and the second external noise signal to obtain an external noise signal set;
combining the internal signal set and the external noise signal set to obtain a regulation signal set;
step five: and generating a regulation sound wave by using the regulation signal set, and broadcasting the regulation sound wave according to the noise phase data.
The invention has the beneficial effects that:
in various aspects disclosed by the invention, 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 inside the earphone, wherein the sound information set comprises sound loudness information and sound tone information; acquiring a noise information set outside the earphone by using an external sound acquisition unit, wherein the noise information set comprises noise amplitude information, noise frequency information, noise wavelength information and noise phase information; by collecting and processing internal sound data and external sound data of the earphone, effective data support can be provided 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 carrying out processing operation; by processing the acquired data, the efficiency and the accuracy of calculation among all data can be improved;
analyzing the received data by using a statistical analysis module to obtain an internal sound value of internal sound and an external noise value of 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 relation between the data is established to obtain the associated internal sound value and external noise value, and reliable data support is provided for volume adjustment and noise reduction;
the regulation 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 regulation signal set, generating a regulation sound wave by using the regulation signal set, and broadcasting the regulation sound wave according to noise phase data; the purpose that the sound volume is adjusted in a self-adaptive mode when the earphone is worn by different users to overcome the defect that the sound volume is not suitable for wearing for the first time and the hearing sense is not good can be achieved, and the purpose of improving the noise reduction effect can be achieved.
Drawings
The invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic block diagram of a noise reduction type music bluetooth headset according to the present invention.
Detailed Description
The technical method in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Example 1
Referring to fig. 1, the present invention is a noise reduction type music bluetooth headset, including 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 acquisition unit is used for acquiring a noise information set outside the earphone, and the noise information set comprises noise amplitude information, noise frequency information, noise wavelength information and noise phase information; sending the collected sound information set and the collected noise information set to a data processing module together;
the data processing module is used for receiving the sound information set and the noise information set and carrying out 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;
the statistical analysis module is used for analyzing 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 internal sound and an external noise value of external noise, and sending the internal sound value and the external noise value to the regulation control module;
the regulation 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 regulation signal set, generating a regulation sound wave by using the regulation signal set, and broadcasting the regulation sound wave according to the noise phase data.
The data processing module is used for receiving the sound information set and the noise information set and carrying out processing operation, and the specific steps comprise:
receiving the sound information set and the noise information set, and acquiring sound loudness information and sound tone information in the sound information set;
setting 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 SSxi, i is 1,2.. n; marking the total number of times of occurrence of the real-time sound loudness as SXCi, i is 1,2.. n;
setting real-time voice tones and the total occurrence times thereof in the voice tone information as voice tone data, and marking the real-time voice tones as SSDi, i being 1,2.. n; marking the total number of occurrences of real-time sound tones as SDCi, 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 SZFi (1, 2.. n); setting real-time noise frequency in the noise frequency information as noise frequency data, and marking the real-time noise frequency as SZPi, i is 1,2.. n; setting real-time noise wavelength in the noise wavelength information as noise wavelength data, and marking the real-time noise wavelength as SZBi, i is 1,2.. n;
setting a real-time noise phase in the noise phase information as noise phase data, and marking the real-time noise phase as SXwi, wherein i is 1,2.. n; the direction of real-time noise phase propagation is set as noise direction data, and the noise direction data is marked as ZFXi, i ═ 1,2.. n.
The specific steps of the analysis operation of the statistical analysis module comprise:
acquiring real-time sound loudness SSxi, total frequency SXCi of appearance of the real-time sound loudness, real-time sound tone SSDi and total frequency SDCi of appearance of the real-time sound tone after marking;
calculating and acquiring an internal sound value of the internal sound by using a formula, wherein the formula is as follows:
wherein Q isnyExpressed as medians, g1, g2, g3 and g4 expressed as notThe same scale factor, μ represents a preset internal sound modification factor, SSXi0 represents a preset maximum sound loudness, ZCi represents the total number of times the sound is received internally, and SSDi0 represents a preset maximum sound pitch;
s33: acquiring the real-time noise amplitude SZFi, the real-time noise frequency SZPi, the real-time noise wavelength SZBi and the real-time noise phase SXwi which are subjected to marking processing, and calculating and acquiring the external noise value of external noise by using a formula, wherein the formula is as follows:
wherein Q iswzExpressed as an external noise value, a1, a2, a3 and a4 are expressed as different scale factors, beta is expressed as a preset external noise correction factor, SZFi0 is expressed as a preset standard noise amplitude, SZPi0 is expressed as a preset standard noise frequency, SZBi0 is expressed as a preset standard noise wavelength, and SXWi0 is expressed as a preset standard noise phase.
The regulation control module is used for receiving the internal sound value and the external noise value, analyzing and generating a regulation signal set, and comprises the following specific steps:
receiving an internal sound value and an external noise value for analysis;
matching the internal sound value with a preset standard internal sound threshold value, and if the internal sound value is not greater than the standard internal sound threshold value, judging that a user wearing the earphone is not replaced, does not need to adjust, and generates a first internal sound signal;
if the internal sound value is larger than the standard internal sound threshold value, judging that the user wearing the earphone needs to be adjusted when the user wears the earphone and generating a second internal sound signal; adjusting the volume of the earphone to a preset default volume according to the second internal sound signal; 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 and the preset standard internal sound threshold value are analyzed and used for matching and judging whether the wearing of the earphone is the original user or not, if not, the volume of the earphone is adjusted to adapt to the replaced user, and the purpose of adaptively adjusting the volume according to the wearing of different users to avoid bad hearing caused by the inappropriate volume of the first wearing is achieved;
matching the external noise value with a preset standard external noise threshold value, and if the external noise value is not greater than the standard external noise threshold value, judging that the noise is in a preset noise reduction range and needing 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 a preset noise reduction range and does not need to be subjected to noise reduction to generate a second external noise signal; combining the first external noise signal and the second external noise signal to obtain an external noise signal set;
combining the internal signal set and the external 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 analyzed for filtering and reducing the noise of external sound, wherein the effective upper limit range of the noise reduction frequency band is hundreds of Hz, and if the external sound exceeds the upper limit of the noise reduction frequency band, the noise is not reduced, for example, human voice or horn voice is not processed, so that the purpose of improving the noise reduction effect is achieved;
utilize the regulation and control signal set to generate the regulation and control sound wave, broadcast the regulation and control sound wave according to noise phase place data, concrete step includes:
receiving and analyzing a regulation and control signal set;
if the regulation and control signal set comprises a first external noise signal, setting a real-time noise amplitude value in the noise amplitude information as a regulation and control amplitude, setting a real-time noise frequency value in the noise frequency information as a regulation and control frequency, setting a real-time noise wavelength value in the noise wavelength information as a regulation and control sound wavelength, setting an opposite number of a real-time noise phase value in the noise phase information as a regulation and control phase, and combining the regulation and control amplitude, the regulation and control frequency, the regulation and control sound wavelength and the regulation and control phase to obtain a regulation and control sound wave;
acquiring the transmission direction of noise information concentrated noise, setting the transmission direction as a standard direction, setting the opposite direction of the standard direction as a noise reduction direction, and transmitting and broadcasting the regulated sound wave 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:
the method comprises the following steps: 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 comprises 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 the internal sound and an external noise value of the external noise;
step four: and analyzing the internal sound value and the external noise value to generate a regulation and control signal set, wherein the regulation and control signal set comprises the following steps:
matching the internal sound value with a preset standard internal sound threshold value, and if the internal sound value is not greater than the standard internal sound threshold value, judging that a user wearing the earphone is not replaced, does not need to adjust, and generates a first internal sound signal; if the internal sound value is larger than the standard internal sound threshold value, judging that the user wearing the earphone needs to be adjusted when the user wears the earphone and generating a second internal sound signal; adjusting the volume of the earphone to a preset default volume according to the second internal sound signal; 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 value, and if the external noise value is not greater than the standard external noise threshold value, judging that the noise is in a preset noise reduction range and needing 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 a preset noise reduction range and does not need to be subjected to noise reduction to generate a second external noise signal; combining the first external noise signal and the second external noise signal to obtain an external noise signal set;
step five: combining the internal signal set and the external noise signal set to obtain a regulation signal set;
and generating a regulation sound wave by using the regulation signal set, and broadcasting the regulation sound wave according to the noise phase data.
The working principle of the invention is as follows: in the embodiment of the invention, through the matching use of the sound acquisition module, the data processing module, the statistical analysis module and the regulation control module, the purpose of adaptively regulating the volume of sound to overcome the defect of poor hearing caused by inappropriate volume of sound during initial wearing can be realized according to the wearing of earphones 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 inside the earphone, wherein the sound information set comprises sound loudness information and sound tone information; acquiring a noise information set outside the earphone by using an external sound acquisition unit, wherein the noise information set comprises noise amplitude information, noise frequency information, noise wavelength information and noise phase information; by collecting and processing internal sound data and external sound data of the earphone, effective data support can be provided 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 carrying out processing operation; by processing the acquired data, the efficiency and the accuracy of calculation among all data can be improved;
analyzing the received data by a statistical analysis module by using a formula
Calculating and acquiring an internal sound value of the internal sound; using formulas
the regulation 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 regulation signal set, generating a regulation sound wave by using the regulation signal set, and broadcasting the regulation sound wave according to noise phase data; through analyzing and screening the outside sound, the sound that will fall the noise is fallen and is initiatively fallen and make an uproar, and the sound that will not fall the noise is filtered, can realize carrying out initiatively screening and falling the purpose of making an uproar to external noise.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus, device and method can be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules is only one logical functional division, and other divisions may be realized in practice.
The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the method of the embodiment.
In addition, functional modules in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional module.
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 attributes 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 obvious that the word "comprising" does not exclude other elements or steps, and the singular does not exclude the plural. A plurality of units or means recited in the system may also be implemented by one unit or means through software or hardware. The terms second, etc. are used to denote names, but not any particular order.
Finally, it should be noted that the above examples are only intended to illustrate the technical process of the present invention and not to limit the same, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical process of the present invention without departing from the spirit and scope of the technical process of the present invention.
Claims (6)
1. A 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 acquisition unit is used for acquiring a noise information set outside the earphone, and the noise information set comprises noise amplitude information, noise frequency information, noise wavelength information and noise phase information; sending the collected sound information set and the collected noise information set to a data processing module together;
the data processing module is used for receiving the sound information set and the noise information set and carrying out 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;
the statistical analysis module is used for analyzing 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 internal sound and an external noise value of external noise, and sending the internal sound value and the external noise value to the regulation control module;
the regulation 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 regulation signal set, generating a regulation sound wave by using the regulation signal set, and broadcasting the regulation sound wave according to the noise phase data.
2. The noise-reducing music Bluetooth headset of claim 1, wherein the data processing module is configured to receive the sound information set and the noise information set and perform processing operations comprising:
s21: receiving the sound information set and the noise information set, and acquiring sound loudness information and sound tone information in the sound information set;
s22: setting 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 SSxi, i is 1,2.. n; marking the total number of times of occurrence of the real-time sound loudness as SXCi, i is 1,2.. n;
s23: setting real-time voice tones and the total occurrence times thereof in the voice tone information as voice tone data, and marking the real-time voice tones as SSDi, i being 1,2.. n; marking the total number of occurrences of real-time sound tones as SDCi, 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 SZFi (1, 2.. n); setting real-time noise frequency in the noise frequency information as noise frequency data, and marking the real-time noise frequency as SZPi, i is 1,2.. n; setting real-time noise wavelength in the noise wavelength information as noise wavelength data, and marking the real-time noise wavelength as SZBi, i is 1,2.. n;
s25: setting a real-time noise phase in the noise phase information as noise phase data, and marking the real-time noise phase as SXwi, wherein i is 1,2.. n; the direction of real-time noise phase propagation is set as noise direction data, and the noise direction data is marked as ZFXi, i ═ 1,2.. n.
3. The noise reduction type music bluetooth headset of claim 2, wherein the specific step of analyzing the operation by the statistical analysis module comprises:
s31: acquiring real-time sound loudness SSxi, total frequency SXCi of appearance of the real-time sound loudness, real-time sound tone SSDi and total frequency SDCi of appearance of the real-time sound tone after marking;
s32: calculating and acquiring an internal sound value of the internal sound by using a formula, wherein the formula is as follows:
wherein Q isnyExpressed as mediant values, g1, g2, g3 and g4 are expressed as different scaling factors, μ is expressed as a preset mediant modification factor, SSXi0 is expressed as a preset maximum sound loudness, ZCi is expressed as a total number of internally received sounds, SSDi0 is expressed as a preset maximum sound pitch;
s33: acquiring the real-time noise amplitude SZFi, the real-time noise frequency SZPi, the real-time noise wavelength SZBi and the real-time noise phase SXwi which are subjected to marking processing, and calculating and acquiring the external noise value of external noise by using a formula, wherein the formula is as follows:
wherein Q iswzExpressed as an external noise value, a1, a2, a3 and a4 are expressed as different scale factors, beta is expressed as a preset external noise correction factor, SZFi0 is expressed as a preset standard noise amplitude, SZPi0 is expressed as a preset standard noise frequency, SZBi0 is expressed as a preset standard noise wavelength, and SXWi0 is expressed as a preset standard noise phase.
4. The noise reduction type music Bluetooth headset of claim 3, wherein the adjustment control module is configured to receive an internal sound value and an external noise value, analyze the internal sound value and the external noise value, and generate a regulation 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 value, and if the internal sound value is not greater than the standard internal sound threshold value, judging that a user wearing the earphone is not replaced, does not need to adjust, and generates a first internal sound signal;
if the internal sound value is larger than the standard internal sound threshold value, judging that the user wearing the earphone needs to be adjusted when the user wears the earphone and generating a second internal sound signal; adjusting the volume of the earphone to a preset default volume according to the second internal sound signal; 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 value, and if the external noise value is not greater than the standard external noise threshold value, judging that the noise is in a preset noise reduction range and needing 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 a preset noise reduction range and does not need to be subjected to noise reduction to generate a second external noise signal; 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 and control signal set.
5. The noise reduction type music Bluetooth headset of claim 4, wherein a modulated sound wave is generated by using a modulated signal set, and is broadcasted according to noise phase data, and the specific steps include:
s51: receiving and analyzing a regulation and control signal set;
s52: if the regulation and control signal set comprises a first external noise signal, setting a real-time noise amplitude value in the noise amplitude information as a regulation and control amplitude, setting a real-time noise frequency value in the noise frequency information as a regulation and control frequency, setting a real-time noise wavelength value in the noise wavelength information as a regulation and control sound wavelength, setting an opposite number of a real-time noise phase value in the noise phase information as a regulation and control phase, and combining the regulation and control amplitude, the regulation and control frequency, the regulation and control sound wavelength and the regulation and control phase to obtain a regulation and control sound wave;
s53: acquiring the transmission direction of noise information concentrated noise, setting the transmission direction as a standard direction, setting the opposite direction of the standard direction as a noise reduction direction, and transmitting and broadcasting the regulated sound wave according to the noise reduction direction.
6. A noise reduction method of a noise reduction type music Bluetooth headset is characterized by comprising the following specific steps:
the method comprises the following steps: 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 comprises 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 the internal sound and an external noise value of the external noise;
step four: and analyzing the internal sound value and the external noise value to generate a regulation and control signal set, wherein the regulation and control signal set comprises the following steps:
matching the internal sound value with a preset standard internal sound threshold value, and if the internal sound value is not greater than the standard internal sound threshold value, judging that a user wearing the earphone is not replaced, does not need to adjust, and generates a first internal sound signal; if the internal sound value is larger than the standard internal sound threshold value, judging that the user wearing the earphone needs to be adjusted when the user wears the earphone and generating a second internal sound signal; adjusting the volume of the earphone to a preset default volume according to the second internal sound signal; 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 value, and if the external noise value is not greater than the standard external noise threshold value, judging that the noise is in a preset noise reduction range and needing 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 a preset noise reduction range and does not need to be subjected to noise reduction to generate a second external noise signal; combining the first external noise signal and the second external noise signal to obtain an external noise signal set;
combining the internal signal set and the external noise signal set to obtain a regulation signal set;
step five: and generating a regulation sound wave by using the regulation signal set, and broadcasting the regulation sound wave according to the noise phase data.
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