CN111083591A - Configuration method and device of noise reduction earphone and noise reduction earphone - Google Patents
Configuration method and device of noise reduction earphone and noise reduction earphone Download PDFInfo
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- CN111083591A CN111083591A CN201911279620.2A CN201911279620A CN111083591A CN 111083591 A CN111083591 A CN 111083591A CN 201911279620 A CN201911279620 A CN 201911279620A CN 111083591 A CN111083591 A CN 111083591A
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- 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
- 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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Abstract
The invention discloses a configuration method and a configuration device of a noise reduction earphone and the noise reduction earphone. The method comprises the following steps: receiving a configuration instruction, wherein the configuration instruction is used for instructing a noise reduction earphone to start noise reduction configuration; reading and testing the noise reduction performance of a plurality of groups of noise reduction filter parameters according to the configuration instruction, and generating a plurality of groups of test results corresponding to different noise reduction filter parameters, wherein the plurality of groups of noise reduction filter parameters are prestored in the noise reduction earphone; and selecting the noise reduction filter parameter with the best noise reduction performance as the active noise reduction parameter of the noise reduction earphone according to the plurality of groups of test results. According to the invention, after the wireless earphone is assembled into a whole machine, according to the actual use environment of a user and a plurality of groups of noise reduction filter parameters prestored in the earphone chip, the optimal noise reduction filter coefficient matched with the current environmental noise is automatically tested and selected, so that the optimal active noise reduction effect is achieved, and the use experience of the user is better. And the parameter configuration process is automatically completed by the earphone, so that the testing cost of the earphone is reduced.
Description
Technical Field
The present invention relates to wireless headsets, and in particular, to a method and an apparatus for configuring a noise reduction headset, and a noise reduction headset.
Background
At present, the active noise reduction earphone gradually walks to the life of people, and people can obtain a relatively quiet environment in a noisy environment. The principle is to reduce the noise heard by the ear by actively emitting sound waves of opposite phase to cancel the sound waves (feed forward) or adding a feedback acoustic path to the sound path (feedback). Therefore, the active noise reduction earphone of true wireless stereo is also widely used.
The active noise reduction earphone for the true wireless stereo has the following characteristics of test and noise reduction parameter configuration. Because the noise reduction microphones of the earphones have inconsistency of sensitivity, phase and the like, and the sound cavities and the like of the earphones also have inconsistency, if the same noise reduction parameters are used, the active noise reduction effect of the earphones can be influenced. Therefore, for each earphone, the noise reduction parameters of the earphone are adjusted to be matched with the inconsistency of noise reduction microphones of the earphone, the inconsistency of sound cavities of the earphone and the like, so that the earphone achieves better noise reduction performance. However, the assembled complete machine of the true wireless stereo active noise reduction earphone generally has no wired connection interface connected with the outside. Before and after the earphone is assembled, the characteristics of the sound cavity and the like of the earphone can be changed. Before the earphone is assembled into a complete machine, active noise reduction parameters are tested and configured, and the parameters obtained when the active noise reduction parameters are different from the parameters obtained when the complete machine is assembled, so that the noise reduction performance of the complete machine of the earphone is influenced.
Disclosure of Invention
The invention discloses a configuration method and a configuration device of a noise reduction earphone and the noise reduction earphone, and aims to solve the problem that the existing noise reduction parameter configuration is not flexible enough, so that user experience is influenced.
In order to achieve the above object, an embodiment of the present invention provides a method for configuring a noise reduction headphone, including: receiving a configuration instruction, wherein the configuration instruction is used for instructing a noise reduction earphone to start noise reduction configuration; reading and testing the noise reduction performance of a plurality of groups of noise reduction filter parameters according to the configuration instruction, and generating a plurality of groups of test results corresponding to different noise reduction filter parameters, wherein the plurality of groups of noise reduction filter parameters are prestored in the noise reduction earphone; and selecting the noise reduction filter parameter with the best noise reduction performance as the active noise reduction parameter of the noise reduction earphone according to the plurality of groups of test results.
In some embodiments, the receiving the configuration instruction comprises: receiving a configuration instruction sent by an intelligent terminal; the intelligent terminal is connected with the noise reduction earphone in a wireless mode including Bluetooth and low-power-consumption Bluetooth, and the configuration instruction is wirelessly transmitted to the noise reduction earphone by the intelligent terminal.
In some embodiments, the receiving the configuration instruction comprises: the configuration instructions are generated when one or more buttons on the noise reduction headset are actuated, the configuration instructions instructing the actuation of noise reduction configuration functions of the noise reduction headset.
In some embodiments, the reading and testing the noise reduction performance of multiple sets of noise reduction filter parameters according to the configuration instruction to generate multiple sets of test results corresponding to different noise reduction filter parameters includes: sequentially testing the in-ear noise collected by the feedback path microphones corresponding to the parameters of each group of noise reduction filters according to a set reading sequence and a set time interval; taking the in-ear noise collected by the feedback path microphone as a test result; correspondingly, selecting the noise reduction filter parameter with the best noise reduction performance as the active noise reduction parameter of the noise reduction earphone, and the method comprises the following steps: and selecting the noise reduction filter parameter with the minimum in-ear noise as the active noise reduction parameter of the noise reduction earphone.
In some embodiments, the reading and testing the noise reduction performance of multiple sets of noise reduction filter parameters according to the configuration instruction to generate multiple sets of test results corresponding to different noise reduction filter parameters includes: sequentially testing the in-ear noise collected by the feedback path microphone and the out-of-ear noise collected by the feedforward path microphone corresponding to each group of noise reduction filter parameters according to a set reading sequence and a set time interval; taking the ratio of the out-of-ear noise collected by the feedforward path microphone corresponding to each group of noise reduction filter parameters to the in-ear noise collected by the feedback path microphone as a test result; correspondingly, selecting the noise reduction filter parameter with the best noise reduction performance as the active noise reduction parameter of the noise reduction earphone, and the method comprises the following steps: and selecting the noise reduction filter parameter with the maximum ratio of the noise outside the ear to the noise inside the ear as the active noise reduction parameter of the noise reduction earphone.
In some embodiments, the method of configuring a noise reducing headphone further comprises: and measuring the in-ear noise and/or the out-of-ear noise corresponding to each group of noise reduction filter parameters for multiple times, and calculating average noise energy as a test result of the in-ear noise and/or the out-of-ear noise corresponding to each group of noise reduction filter parameters.
In some embodiments, the method of configuring a noise reducing headphone further comprises: and filtering the in-ear noise and/or the out-of-ear noise corresponding to each group of noise reduction filter parameters, and then calculating the noise energy of the in-ear noise and/or the out-of-ear noise.
In some embodiments, the method of configuring a noise reducing headphone further comprises: and weighting different frequency points of the in-ear noise and/or the out-of-ear noise corresponding to each group of noise reduction filter parameters in a frequency domain.
In some embodiments, the noise reduction filter parameters are noise reduction filter coefficients of a feedforward path.
In some embodiments, the sets of noise reduction filter parameters are test switched using soft switching.
In order to achieve the above object, an embodiment of the present invention further provides a device for configuring a noise reduction headphone, including: the receiving module is used for receiving a configuration instruction; the storage module is used for storing a plurality of groups of noise reduction filter parameters; the test result generation module is used for reading and testing the noise reduction performance of the noise reduction filter parameters according to the configuration instruction and generating a plurality of groups of test results corresponding to different noise reduction filter parameters; and the selection module is used for selecting the noise reduction filter parameter with the best noise reduction performance as the active noise reduction parameter of the noise reduction earphone according to the plurality of groups of test results.
In order to achieve the above object, an embodiment of the present invention further provides a noise reduction headphone, which includes a memory and a processor, where the memory includes a computer program, and when the computer program is executed by the processor, the method for configuring the noise reduction headphone according to any embodiment of the present invention is implemented.
According to the noise reduction earphone parameter configuration method and device and the noise reduction earphone, after the wireless earphone is assembled into a whole machine, according to the actual use environment of a user and a plurality of groups of noise reduction filter parameters prestored in an earphone chip, the optimal noise reduction filter coefficient matched with the current environmental noise is automatically tested and selected, so that the optimal active noise reduction effect is achieved, and the use experience of the user is better. And the parameter configuration process is automatically completed by the earphone, so that the testing cost of the earphone is reduced.
Specific embodiments of the present invention are disclosed in detail with reference to the following description and drawings, indicating the manner in which the principles of the invention may be employed. It should be understood that the embodiments of the invention are not so limited in scope. The embodiments of the invention include many variations, modifications and equivalents within the spirit and scope of the appended claims.
Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments, in combination with or instead of the features of the other embodiments.
It should be emphasized that the term "comprises/comprising" when used herein, is taken to specify the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps or components.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a process flow diagram of a configuration method of a noise reduction headphone according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a configuration device of a noise reduction headphone according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a noise reduction headphone according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are 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.
As will be appreciated by one skilled in the art, embodiments of the present invention may be embodied as a system, apparatus, device, method, or computer program product. Accordingly, the present disclosure may be embodied in the form of: entirely hardware, entirely software (including firmware, resident software, micro-code, etc.), or a combination of hardware and software.
The principles and spirit of the present invention are explained in detail below with reference to several representative embodiments of the invention.
The configuration method of the noise reduction earphone and the noise reduction earphone disclosed by the embodiment of the invention can automatically configure the noise reduction coefficient according to the actual use environment at that time, namely: when the noise reduction configuration function is started, the optimal noise reduction coefficient matched with the ambient noise at that time is automatically calculated and selected according to a plurality of groups of noise reduction filter parameters prestored in the earphone chip, so that the optimal active noise reduction effect is achieved, and the user experience is better.
Fig. 1 is a processing flow chart of a configuration method of a noise reduction headphone according to an embodiment of the present invention. As shown in the figure, the noise reduction parameter configuration method of the embodiment includes:
step S101, receiving a configuration instruction, wherein the configuration instruction is used for indicating a noise reduction earphone to start noise reduction configuration;
step S102, reading and testing the noise reduction performance of a plurality of groups of noise reduction filter parameters according to the configuration instruction, and generating a plurality of groups of test results corresponding to different noise reduction filter parameters, wherein the plurality of groups of noise reduction filter parameters are prestored in the noise reduction earphone;
and step S103, selecting the noise reduction filter parameter with the best noise reduction performance as the active noise reduction parameter of the noise reduction earphone according to the plurality of groups of test results.
In step S101, the configuration command may be a command signal input by an external device, or a command signal generated by the noise reduction earphone itself through the operation of the noise reduction earphone by the user.
In some embodiments, the noise reduction earphone is wirelessly connected with an external intelligent terminal in a wireless mode such as Bluetooth and low-power Bluetooth, and the intelligent terminal is provided with an APP module for controlling the noise reduction earphone. The user controls and inputs the APP in a voice or touch mode, for example, an active noise reduction configuration function in the APP is opened, that is, a noise reduction configuration instruction is sent to a noise reduction earphone terminal, and the noise reduction earphone is instructed to start noise reduction configuration. In one embodiment, the intelligent terminal sends the configuration command to one of the earphones, such as the left earphone, and then the left earphone forwards the configuration command or the parameters belonging to the right earphone.
In other embodiments, a button or some combination of buttons may be provided on the left and right earphones or on a single earphone of the noise reduction earphones, so as to activate the noise reduction configuration function of the noise reduction earphones and perform the performance measurement of the noise reduction filter parameters. In one embodiment, taking the button on the left earphone as an example, pressing the button on the left earphone not only starts the noise reduction measurement of the left earphone, but also sends a start command to the right earphone through wireless connection, and after receiving the start command, the right earphone starts the noise reduction measurement of the right earphone.
In the embodiment of the invention, a plurality of groups of noise reduction filter parameters are pre-stored in a memory of the noise reduction earphone chip. In one embodiment, the parameters may be written into the memory at the time of factory shipment and may not be modified, and in another embodiment, the parameters may be rewritten or may be modified in a manner controlled by the smart terminal APP, for example, rewritten at the time of firmware upgrade, so that the noise reduction configuration is more flexible. After the noise reduction configuration is started through step S101, the plurality of sets of noise reduction filter parameters are read and the noise reduction performance of each set of noise reduction filter parameters is tested.
In some embodiments, reading the plurality of sets of noise reduction filter parameters may include sequentially testing the noise reduction performance of each set of noise reduction filter parameters according to a set reading order and a set time interval. In one embodiment, each group of noise reduction filter parameters may be read in sequence for testing according to the storage address of the noise reduction filter parameters; in another embodiment, each set of noise reduction filter parameters corresponds to an index value, which may be, for example, 1, 2, … …, N, or each set of noise reduction filter parameters may be read sequentially according to the order of the index values. The invention is not limited to the above two reading modes, as long as each group of parameters can be read in sequence to obtain the corresponding test result. In this embodiment, the noise reduction filter parameters may be read and tested at set time intervals, for example, the time intervals are set to 100ms to 3 s. It should be noted that each parameter reading and measuring time interval is not longer, so as to reduce the influence of environmental noise variation on the measurement result.
In this embodiment, the measurement result of the noise reduction filter parameter may be determined by measuring the in-ear noise collected by the feedback path microphone (FBMIC). And sequentially measuring the in-ear noise collected by the FB MIC corresponding to each group of noise reduction filter parameters by the noise reduction earphone according to a set reading sequence and a set time interval (such as 500 ms). In addition, in order to deal with the randomness of noise, related to the current environment, the in-ear noise acquired by FB MICs corresponding to multiple groups of different noise reduction filter parameters can be measured for multiple times in sequence, and the acquired multiple noise signals corresponding to each group of noise reduction filter parameters can be fused, for example, energy averaging, median filtering and the like can be performed on noise energy. The advantage of the sequential measurement adopted in this embodiment is that the time interval of different measurements of the same set of noise reduction filter parameters is longer, the correlation of the environmental noise is weakened, and the influence of the environmental noise change on the measurement result can be reduced.
In the embodiment of the invention, for example, N groups of noise reduction filter parameters are measured once, and then N groups of noise reduction filter parameters are measured once, so that M times can be measured in total, and then M test results corresponding to each group of noise reduction filter parameters are averaged. The reason is that noise energy and noise reduction are affected by the environment sound outside the ear, the environment sound outside the ear is often changed, N groups of the noise energy and noise reduction are measured once, the time spent by each group is short, the environment sound outside the ear is changed slightly, the noise energy and noise reduction measured by different groups are affected slightly by the change of the environment sound, and M times of repeated measurement are carried out, so that the test result is more accurate.
In some embodiments, the evaluation of the noise reduction performance is not only dependent on the in-ear noise collected by the feedback path microphone (FB MIC) corresponding to each set of noise reduction filter parameters, but also dependent on the out-of-ear noise collected by the feedforward path microphone (FF MIC) corresponding to each set of noise reduction filter parameters. For example, the ratio of the ear noise collected by the FF MIC to the ear noise collected by the FB MIC may be used as the test result of the noise reduction filter parameters. And when the ratio of the extra-aural noise collected by the FF MIC to the in-aural noise collected by the FB MIC is selected as a test result, selecting the noise reduction filter parameter with the maximum ratio as the active noise reduction parameter of the noise reduction earphone.
In some embodiments, the in-ear noise/out-of-ear noise collected by the FB MIC and the FF MIC may be filtered first. The filtering may be a high pass filter with cut-off frequencies such as 20Hz, 50Hz, 100 Hz; there may also be a low pass filter with cut-off frequencies such as 500Hz, 1KHz, 2 KHz. After filtering, the noise energy is calculated. The high-pass filter and the low-pass filter need to be set in consideration of the noise reduction bandwidth of the FF channel, and simultaneously consider the possible amplification effect of the noise signal outside the noise reduction bandwidth of the FF channel.
In some embodiments, the in-ear noise/out-of-ear noise collected by the FB MIC and the FF MIC may be weighted at different frequency points in the frequency domain. A relatively large weight may be used within the noise reduction bandwidth of the FF channel and a smaller or 0 weight may be used for frequencies that are susceptible to interference. For example, for low frequencies (below 50 Hz), a smaller or 0 weight is used. In addition, different sensitivities of human ears to different frequencies can be utilized, and different frequencies can be weighted by utilizing a human ear frequency sensitivity curve.
In the embodiment of the invention, the noise reduction filter parameters are noise reduction filter parameters of a feedforward path. The wearing manner of the user includes the tightness of wearing the earphone, the orientation of the earphone relative to the ear canal and the like. Because the noise reduction filter parameters of the feedforward channel are sensitive to noise reduction effects for different wearers and different wearing modes, such as wearing tightness, wearing specification and the like. And the noise reduction filter parameters of the feedback channel are relatively insensitive to noise reduction effect for different wearers and different wearing modes. Therefore, in general, the noise reduction filter parameters are configured for the noise reduction filter parameters of the feedforward channel, as well as the present invention. However, the present invention is not limited to this, and the method of configuring the noise reduction parameters is also applicable to setting the noise reduction filter parameters for the feedback channel.
Configuring noise reduction filter parameters of a feedforward channel, and testing noise reduction effect, wherein in some embodiments, a noise reduction channel of a feedback channel can be opened to work normally; in other embodiments, the noise reduction channel of the feedback channel can be closed, and at the moment, only the noise reduction effect of the feedforward channel is tested, so that the influence of the noise reduction filter parameters of different feedforward channels on the noise reduction effect can be more clearly obtained.
In the embodiment of the invention, in the switching of different noise reduction filter parameters, a soft switching method is used, so that the noise reduction filter coefficients are smoothly switched from one group to another group, and a user does not feel sudden change of noise, and harsh noise such as papa, sudden burst and the like.
When a user configures the parameters of the noise reduction earphones according to the method described in the above embodiment, the user wears the left and right wireless earphones first, sets of different noise reduction filter parameters are configured in the left and right earphones, and the FB MIC collects the in-ear noise. The user sends a configuration instruction through the intelligent terminal APP or manually opens a button on the earphone to start a noise reduction configuration function of the noise reduction earphone, the left earphone and the right earphone read multiple sets of currently stored noise reduction filter parameters in sequence at the moment and measure the in-ear noise collected by the FF MIC under each set of noise reduction filter parameters, and the noise reduction filter parameters corresponding to the minimum in-ear noise are selected as the final active noise reduction parameters.
According to the noise reduction earphone parameter configuration method disclosed by the embodiment, after the wireless earphone is assembled into a whole machine, according to the actual use environment of a user and a plurality of groups of noise reduction filter parameters prestored in an earphone chip, the optimal noise reduction filter coefficient matched with the current environmental noise is automatically tested and selected, so that the optimal active noise reduction effect is achieved, and the use experience of the user is better. And the parameter configuration process is automatically completed by the earphone, so that the testing cost of the earphone is reduced.
Having described the method of an exemplary embodiment of the present invention, a configuration apparatus of a noise reduction headphone of an exemplary embodiment of the present invention will be described next with reference to fig. 2. The implementation of the device can be referred to the implementation of the method, and repeated details are not repeated. The terms "module" and "unit", as used below, may be software and/or hardware that implements a predetermined function. While the modules described in the following embodiments are preferably implemented in software, implementations in hardware, or a combination of software and hardware are also possible and contemplated.
Fig. 2 is a schematic structural diagram of a configuration device of a noise reduction headphone according to an embodiment of the present invention. As shown in fig. 2, the configuration apparatus of the noise reduction headphone of the present embodiment includes:
a receiving module 21, configured to receive a configuration instruction;
a storage module 22 for storing a plurality of sets of noise reduction filter parameters;
a test result generating module 23, configured to read and test the noise reduction performance of the multiple sets of noise reduction filter parameters according to the configuration instruction, and generate multiple sets of test results corresponding to different noise reduction filter parameters;
and the selecting module 24 is configured to select, according to the multiple groups of test results, a noise reduction filter parameter with the best noise reduction performance as an active noise reduction parameter of the noise reduction earphone.
In some embodiments, the receiving module 21 receives a configuration instruction, including: receiving a configuration instruction sent by an intelligent terminal; the intelligent terminal is connected with the noise reduction earphone in a wireless mode including Bluetooth and low-power-consumption Bluetooth, and the configuration instruction is wirelessly transmitted to the noise reduction earphone by the intelligent terminal.
In other embodiments, the receiving module 21 receives a configuration instruction, including: the configuration instructions are generated when one or more buttons on the noise reduction headset are actuated, the configuration instructions instructing the actuation of noise reduction configuration functions of the noise reduction headset.
In some embodiments, the reading and testing the noise reduction performance of the noise reduction filter parameters by the test result generating module 23 according to the configuration instruction to generate multiple sets of test results corresponding to different noise reduction filter parameters includes: sequentially testing the in-ear noise collected by the feedback path microphones corresponding to the parameters of each group of noise reduction filters according to a set reading sequence and a set time interval; taking the in-ear noise collected by the feedback path microphone as a test result; correspondingly, the selecting module 24 selects the noise reduction filter parameter with the best noise reduction performance as the active noise reduction parameter of the noise reduction headphone, including: and selecting the noise reduction filter parameter with the minimum in-ear noise as the active noise reduction parameter of the noise reduction earphone.
In some embodiments, the reading and testing the noise reduction performance of the noise reduction filter parameters by the test result generating module 23 according to the configuration instruction to generate multiple sets of test results corresponding to different noise reduction filter parameters includes: sequentially testing the in-ear noise collected by the feedback path microphone and the out-of-ear noise collected by the feedforward path microphone corresponding to each group of noise reduction filter parameters according to a set reading sequence and a set time interval; taking the ratio of the out-of-ear noise collected by the feedforward path microphone corresponding to each group of noise reduction filter parameters to the in-ear noise collected by the feedback path microphone as a test result; correspondingly, the selecting module 24 selects the noise reduction filter parameter with the best noise reduction performance as the active noise reduction parameter of the noise reduction headphone, including: and selecting the noise reduction filter parameter with the maximum ratio of the noise outside the ear to the noise inside the ear as the active noise reduction parameter of the noise reduction earphone.
In some embodiments, the test result generation module 23 is further configured to: and measuring the in-ear noise and/or the out-of-ear noise corresponding to each group of noise reduction filter parameters for multiple times, and calculating average noise energy as a test result of the in-ear noise and/or the out-of-ear noise corresponding to each group of noise reduction filter parameters.
In some embodiments, the test result generation module 23 is further configured to: and filtering the in-ear noise and/or the out-of-ear noise corresponding to each group of noise reduction filter parameters, and then calculating the noise energy of the in-ear noise and/or the out-of-ear noise.
In some embodiments, the test result generation module 23 is further configured to: and weighting different frequency points of the in-ear noise and/or the out-of-ear noise corresponding to each group of noise reduction filter parameters in a frequency domain.
In some embodiments, the test result generation module 23 is further configured to: and testing and switching the multiple groups of noise reduction filter parameters by using soft switching.
Furthermore, although in the above detailed description several units of the configuring means of the noise reducing headset are mentioned, such division is only not mandatory. Indeed, the features and functions of two or more of the units described above may be embodied in one unit, according to embodiments of the invention. Also, the features and functions of one unit described above may be further divided into embodiments by a plurality of units. For example, the memory module 22 may be implemented using an existing memory unit within the noise reducing headphone chip.
An embodiment of the present application further discloses a noise reduction earphone, as shown in fig. 3, an internal circuit of the noise reduction earphone includes a memory a and a processor b, the memory a includes a computer program, and when the computer program is executed by the processor b, the configuration method of the noise reduction earphone in the embodiment shown in fig. 1 is implemented.
According to the configuration method and device for the noise reduction earphone and the noise reduction earphone disclosed by the embodiment of the invention, after the wireless earphone is assembled into a whole machine, according to the actual use environment of a user and a plurality of groups of noise reduction filter parameters prestored in an earphone chip, the optimal noise reduction filter coefficient matched with the current environmental noise is automatically tested and selected, so that the optimal active noise reduction effect is achieved, and the use experience of the user is better. And the parameter configuration process is automatically completed by the earphone, so that the testing cost of the earphone is reduced.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The principle and the implementation mode of the invention are explained by applying specific embodiments in the invention, and the description of the embodiments is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (12)
1. A method of configuring a noise reducing headphone, the method comprising:
receiving a configuration instruction, wherein the configuration instruction is used for instructing a noise reduction earphone to start noise reduction configuration;
reading and testing the noise reduction performance of a plurality of groups of noise reduction filter parameters according to the configuration instruction, and generating a plurality of groups of test results corresponding to different noise reduction filter parameters, wherein the plurality of groups of noise reduction filter parameters are prestored in the noise reduction earphone;
and selecting the noise reduction filter parameter with the best noise reduction performance as the active noise reduction parameter of the noise reduction earphone according to the plurality of groups of test results.
2. The method of configuring a noise reducing headphone according to claim 1, wherein the receiving a configuration instruction comprises:
receiving a configuration instruction sent by an intelligent terminal;
the intelligent terminal is connected with the noise reduction earphone in a wireless mode including Bluetooth and low-power-consumption Bluetooth, and the configuration instruction is wirelessly transmitted to the noise reduction earphone by the intelligent terminal.
3. The method of configuring a noise reducing headphone according to claim 1, wherein the receiving a configuration instruction comprises:
the configuration instructions are generated when one or more buttons on the noise reduction headset are actuated, the configuration instructions instructing the actuation of noise reduction configuration functions of the noise reduction headset.
4. The method according to claim 1, wherein the reading and testing the noise reduction performance of the noise reduction filter parameters according to the configuration instruction to generate a plurality of sets of test results corresponding to different noise reduction filter parameters comprises:
sequentially testing the in-ear noise collected by the feedback path microphones corresponding to the parameters of each group of noise reduction filters according to a set reading sequence and a set time interval;
taking the in-ear noise collected by the feedback path microphone as a test result;
correspondingly, selecting the noise reduction filter parameter with the best noise reduction performance as the active noise reduction parameter of the noise reduction earphone, and the method comprises the following steps:
and selecting the noise reduction filter parameter with the minimum in-ear noise as the active noise reduction parameter of the noise reduction earphone.
5. The method according to claim 1, wherein the reading and testing the noise reduction performance of the noise reduction filter parameters according to the configuration instruction to generate a plurality of sets of test results corresponding to different noise reduction filter parameters comprises:
sequentially testing the in-ear noise collected by the feedback path microphone and the out-of-ear noise collected by the feedforward path microphone corresponding to each group of noise reduction filter parameters according to a set reading sequence and a set time interval;
taking the ratio of the out-of-ear noise collected by the feedforward path microphone corresponding to each group of noise reduction filter parameters to the in-ear noise collected by the feedback path microphone as a test result;
correspondingly, selecting the noise reduction filter parameter with the best noise reduction performance as the active noise reduction parameter of the noise reduction earphone, and the method comprises the following steps:
and selecting the noise reduction filter parameter with the maximum ratio of the noise outside the ear to the noise inside the ear as the active noise reduction parameter of the noise reduction earphone.
6. The method of configuring a noise reducing headphone according to claim 4 or 5, further comprising:
and measuring the in-ear noise and/or the out-of-ear noise corresponding to each group of noise reduction filter parameters for multiple times, and calculating average noise energy as a test result of the in-ear noise and/or the out-of-ear noise corresponding to each group of noise reduction filter parameters.
7. The method of configuring a noise reducing headphone according to claim 4 or 5, further comprising:
and filtering the in-ear noise and/or the out-of-ear noise corresponding to each group of noise reduction filter parameters, and then calculating the noise energy of the in-ear noise and/or the out-of-ear noise.
8. The method of configuring a noise reducing headphone according to claim 4 or 5, further comprising:
and weighting different frequency points of the in-ear noise and/or the out-of-ear noise corresponding to each group of noise reduction filter parameters in a frequency domain.
9. A method of configuring a noise reducing headphone according to any of the claims 1-5, wherein the noise reducing filter parameters are noise reducing filter coefficients of a feed forward path.
10. A method of configuring noise reducing headphones according to any of claims 1-5, wherein the groups of noise reducing filter parameters are test switched using soft switching.
11. A device for configuring a noise reducing headphone, comprising:
the receiving module is used for receiving a configuration instruction;
the storage module is used for storing a plurality of groups of noise reduction filter parameters;
the test result generation module is used for reading and testing the noise reduction performance of the noise reduction filter parameters according to the configuration instruction and generating a plurality of groups of test results corresponding to different noise reduction filter parameters;
and the selection module is used for selecting the noise reduction filter parameter with the best noise reduction performance as the active noise reduction parameter of the noise reduction earphone according to the plurality of groups of test results.
12. A noise reducing headphone comprising a memory and a processor, the memory including a computer program, wherein the computer program when executed by the processor implements the method of configuring the noise reducing headphone of any of claims 1-10.
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| CN201911279620.2A CN111083591A (en) | 2019-12-13 | 2019-12-13 | Configuration method and device of noise reduction earphone and noise reduction earphone |
| PCT/CN2020/082478 WO2021114514A1 (en) | 2019-12-13 | 2020-03-31 | Active noise control headphones |
| US16/836,919 US10834494B1 (en) | 2019-12-13 | 2020-04-01 | Active noise control headphones |
| US17/068,765 US11317192B2 (en) | 2019-12-13 | 2020-10-12 | Active noise control headphones |
| US17/151,545 US11330359B2 (en) | 2019-12-13 | 2021-01-18 | Active noise control headphones |
| US17/718,667 US11595748B2 (en) | 2019-12-13 | 2022-04-12 | Active noise control headphones |
| US17/975,921 US11653141B2 (en) | 2019-12-13 | 2022-10-28 | Active noise control headphones |
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