CN115665612A - Generation method and application of customized audio frequency response curve for distinguishing left ear from right ear - Google Patents
Generation method and application of customized audio frequency response curve for distinguishing left ear from right ear Download PDFInfo
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- CN115665612A CN115665612A CN202211333280.9A CN202211333280A CN115665612A CN 115665612 A CN115665612 A CN 115665612A CN 202211333280 A CN202211333280 A CN 202211333280A CN 115665612 A CN115665612 A CN 115665612A
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Abstract
The invention provides a generation method and application of a customized audio frequency response curve for distinguishing left and right ears, belonging to the technical field of loudspeakers. A generation method for distinguishing left and right ear customized audio frequency response curves comprises the steps of S1, establishing connection; s2, detecting environmental noise; s3, wearing detection; s4, testing and generating a frequency response curve; s5, customizing audio fusion, wherein the application of the audio fusion comprises the step I of initializing audio; step two, fusing EQ; step three, signal adjustment; step four, audio output and step five, ending the audio output; the invention generates the frequency response compensation curve data for the hearing of the left and the right ears of the person through the hearing test and transmits the frequency response compensation curve data back to the earphone to compensate the frequency response curve of the opened audio, the generation method and the application process are simple, the operation is convenient, and the generated frequency response compensation curve data for the hearing of the left and the right ears of the person are completely obtained according to the hearing test of the user, thereby better adapting to the current user and effectively optimizing the hearing sense of the user.
Description
Technical Field
The invention relates to the technical field of loudspeakers, in particular to a generation method and application of a customized audio frequency response curve for distinguishing left and right ears.
Background
The earphone is widely applied to the loudspeaker and becomes a necessary electronic product in life of people, so that the improvement of the use performance of the earphone is the key point of industrial research.
At present, two earphones are available on the market, one earphone is a common earphone, the structure is simple, only a received Audio signal can be converted into sound, the earphone does not have an Audio EQ (English: equalizer, chinese: audio Equalizer) adjusting function, matching of corresponding EQ configuration according to different music types is difficult, the listening feeling is poor, and the earphone is generally a bottom end product; the other type is a middle-high level earphone configured with an Audio EQ adjusting function, the middle-high level earphone is connected with intelligent equipment such as a mobile phone and the like through an APP (English: application, chinese: application), corresponding EQ configurations can be matched according to different music types in the using process, although the hearing sense can be improved, the existing earphone product only prestores a plurality of groups of EQ curves with different modes, the EQ curve modes can be switched through the APP by a user during use, or only fixed frequency points are opened for user-defined configuration, the user can perform user-defined adjustment on the APP according to personal preference, and adjustment is achieved, but the adjustment limitation is large. In addition, the above earphones do not consider the difference between the loudness and the frequency of the left and right ear hearing of the user, and in the usage scenario such as stereo or spatial audio, if the left and right ear hearing of the user is greatly different, for example, when the EQ curves of the left and right earphones are adjusted to the same mode, the earphone cannot adapt to the usage requirement of each user, some users may not listen to the slight difference in audio, miss the slight expression details, and still have the problem of affecting the hearing sense.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a generation method and application of a customized audio frequency response curve for distinguishing left and right ears, so that the customized audio frequency response curve can be wirelessly connected with an earphone through an intelligent device provided with an APP, a user can firstly control the earphone through the APP to perform hearing test to generate individual left and right ear hearing frequency response compensation curve data of the user, the generated individual left and right ear hearing frequency response compensation curve data are transmitted back to the earphone through the APP on the intelligent device after the test is finished, and a corresponding EQ curve is generated through a chip of the earphone, so that the left and right ear hearing difference can be compensated.
The specific technical scheme is as follows:
a generation method for distinguishing left and right ear customized audio response curves comprises the following steps:
step S1, establishing connection;
the method comprises the steps that wireless connection is established between the earphone and intelligent equipment provided with the APP, and the earphone is started through the APP and enters a test;
s2, detecting environmental noise;
detecting external environment noise of the earphone, judging the level of the environment noise, if the level of the environment noise is low, executing the step S3, otherwise, continuing to execute the step S2;
s3, detecting wearing;
detecting the wearing tightness of the earphone worn by the user, judging whether the wearing tightness is good or not, if the wearing tightness is good, executing the step S4, otherwise, continuing to execute the step S3;
s4, testing and generating a frequency response curve;
firstly, a single-ear fixed-frequency playing sound source with descending volume is carried out, a user generates a personal single-ear hearing frequency response curve on an APP according to the feedback of the hearing sense, then another single-ear hearing frequency response curve is generated by the same method to obtain a personal bilateral hearing frequency response curve, if the bilateral hearing frequency response curve can be obtained smoothly, the step S5 is executed, if the bilateral hearing frequency response curve can not be obtained smoothly, the step S2 is returned to be executed, and meanwhile, a left testing channel and a right testing channel are switched;
s5, customizing audio fusion;
and carrying out left and right customized audio EQ fusion on the obtained bilateral hearing frequency response curves of the individual through the APP to complete the test of the individual frequency response curves and obtain the hearing frequency response compensation curve data of the left and right ears of the individual.
In the above method for generating a customized audio response curve for distinguishing the left ear from the right ear, in step S1, the wireless connection between the earphone and the smart device is bluetooth connection.
In the above generation method of the customized audio response curve for distinguishing the left ear from the right ear, in step S2, when detecting the external environment noise of the earphone, the earphone needs to be in an open and quiet environment.
In the above method for generating the customized audio response curve for distinguishing the left ear from the right ear, in step S2, when detecting external environmental noise of the earphone, if the environmental noise level is high, a noise exceeding prompt is sent and displayed in the APP.
In the above method for generating a customized audio response curve for distinguishing left and right ears, in step S4, when generating a hearing response curve for a single ear of a person, it is necessary to ensure that the other single ear is in a mute state.
The method for generating the customized audio response curve for distinguishing the left ear from the right ear comprises the steps of pre-storing a plurality of groups of frequency response curve data with different modes in an earphone chip of the earphone, and correspondingly storing different audio types.
The generation method for distinguishing the left ear from the right ear customized audio response curve is characterized in that a plurality of fixed frequency points are opened in an APP of the intelligent device, and different fixed frequency points are configured to form customized audio response curve data.
Use of a customized audio response curve for left and right ear discrimination using the individual left and right ear hearing compensation curve data generated in the preceding claims, comprising the steps of:
firstly, initializing audio;
the method comprises the steps of ensuring that the earphone and the intelligent equipment provided with the APP are in a wireless connection state, and starting and initializing audio;
step two, fusing EQ;
the generated personal left and right ear hearing frequency response compensation curve data are transmitted back to the earphone through an APP in the intelligent equipment, and a DSP (Digital Signal processing) chip of the earphone fuses the transmitted personal left and right ear hearing frequency response compensation curve data and default frequency response curve data to form output data;
step three, signal adjustment;
output data is automatically adjusted through an AGC (Automatic Gain Control) amplifying circuit to realize Automatic Gain Control;
step four, audio output;
distinguishing left and right sound channels, and outputting from SPK (English: speaker, chinese: speaker);
and step five, ending the audio output.
In the second step, the default frequency response curve data is the frequency response curve data of the corresponding mode prestored in the earphone chip by the opened audio.
The positive effects of the technical scheme are as follows:
according to the method for generating the left and right ear distinguishing customized audio frequency response curve and the application thereof, the earphone is wirelessly connected with the intelligent equipment provided with the APP, the user controls the earphone to perform hearing test through the APP, and the user personal left and right ear hearing frequency response compensation curve data are generated, so that the generation process is simple and the operation is convenient; in addition, when the frequency response compensation curve data of the individual left and right ear hearing are generated, the user can transmit the generated frequency response compensation curve data of the individual left and right ear hearing back to the earphone through the APP, and corresponding frequency response curve data are generated by fusing the earphone chip and the default frequency response curve data, so that the difference of the left and right ear hearing is compensated, the difference acts on the left and right sound channels of the earphone, the hearing of the user is optimized, and the generated frequency response compensation curve data of the individual left and right ear hearing is obtained completely according to the hearing test of the user, so that the use requirements of each user can be met, the fine difference of the audio can be heard by each user, and the hearing is improved.
Drawings
FIG. 1 is a flow chart of an embodiment of a method of generating a customized audio response for distinguishing between left and right ears according to the present invention;
FIG. 2 is a flow chart of the present invention for applying a customized audio response to differentiate between the left and right ears.
Detailed Description
In order to make the technical means, creation features, achievement objects and effects of the present invention easily understood, the following embodiments are specifically set forth in the following description with reference to fig. 1 to fig. 2, but the following contents are not intended to limit the present invention.
FIG. 1 is a flow chart of an embodiment of a method for generating a customized audio response for left and right ear discrimination according to the present invention. As shown in fig. 1, the method for generating a customized audio response curve for distinguishing left and right ears according to this embodiment includes the following steps:
step S1, establishing connection;
s2, detecting environmental noise;
s3, detecting wearing;
s4, testing and generating a frequency response curve; and
and S5, customizing audio fusion.
Specifically, in step S1, in the process of establishing the connection, the wireless connection between the smart device equipped with the corresponding APP and the headset needs to be established first, so as to provide conditions for testing the headset controlled by the smart device subsequently and transmitting generated data of the user' S personal bilateral hearing frequency response curve back to the headset. After the earphone and the intelligent device are successfully connected, starting through the APP and entering a test to wait for subsequent operation.
As the preferred implementation mode, the wireless connection mode between the earphone and the intelligent device is Bluetooth connection, the connection technology is mature, the application is wide, and the data transmission is stable. In addition, smart machine can be for the electronic equipment that can install application such as cell-phone, IPA, computer, can satisfy to APP install and the operation demand can.
More specifically, after the test process is carried out, the step S2 is carried out, the ambient noise detection process is carried out, the external ambient noise of the earphone needs to be detected firstly, the level of the ambient noise is judged, the interference of the external ambient noise to the test is avoided, the generated personal bilateral hearing frequency response curve data is different from the actual requirement of a user, and the generated personal bilateral hearing frequency response curve data is more accurate. At this time, if the detected ambient noise level is low, the subsequent test can be performed, step S3 is executed, otherwise, step S2 needs to be continuously executed until the external ambient noise interference is eliminated, and the accuracy of the generated personal bilateral hearing frequency response curve data is ensured.
It is worth pointing out that, in order to improve the generation efficiency of the personal bilateral hearing frequency response curve data and avoid repeatedly performing noise detection on the external environment of the earphone, when the noise detection on the external environment of the earphone is performed in step S2, the user needs to be in an open and quiet environment, the influence of the external environment on the test is reduced to the maximum extent, and the accuracy of the generated personal bilateral hearing frequency response curve data is improved.
As a preferred embodiment, in step S2, a prompt function can be set in the APP, that is, when detecting the external environment noise of the earphone, if the environment noise level is high, the earphone can send out a noise exceeding prompt and display the noise exceeding prompt in the APP, so that a user can conveniently obtain the environment noise level in time, and the adjustment can be performed quickly, and the problem of time waste can be reduced.
More specifically, when judging that external environmental noise level is lower, then get into step S3, at this moment, need detect the user and wear the leakproofness of wearing of earphone, judge the quality of wearing the leakproofness, effectively avoided influencing the broadcast problem of audio frequency in the ear because of wearing the leakproofness of earphone, equally can be outside environment to the influence of test, furthest reduces external interference factor, promotes the accuracy of test. At this time, if the wearing tightness is judged to be good, subsequent tests can be carried out, the step S4 is executed, otherwise, the step S3 is continuously executed until the wearing tightness of the earphone is good, and the accuracy of the generated personal bilateral hearing frequency response curve data is ensured.
More specifically, under the condition that the wearing sealing performance of the user wearing the earphone is good, the step S4 is entered, at the moment, a single-ear fixed-frequency playing sound source with the decreased volume is firstly carried out, the user generates a personal single-ear hearing frequency response curve on the APP according to the test hearing feedback to realize data storage, then another single-ear hearing frequency response curve is generated in the same method, namely, the generation of the personal left and right ear audio frequency response curve is completed, and the personal two-side hearing frequency response curve is obtained. In the process, whether the bilateral hearing frequency response curve of the person can be obtained smoothly needs to be judged, if the bilateral hearing frequency response curve can be obtained smoothly, the success of generating the frequency response curve is proved, the subsequent operation can be carried out, the step S5 is executed, if the bilateral hearing frequency response curve can not be obtained smoothly, the step S2 is executed, errors can occur in links such as environmental noise detection, wearing detection and the like, the environmental noise detection and the wearing link detection need to be carried out again, the influence of the external environment on the test is eliminated as much as possible, meanwhile, the left test channel and the right test channel are switched, the test scheme is adjusted, and the test can be completed smoothly.
As a preferred embodiment, in step S4, when generating the individual monaural hearing frequency response curve, in order to ensure the accuracy of the monaural test, it is necessary to ensure that another monaural is in a mute state, so as to avoid the user from being interfered by another earphone during the test, and ensure that the generated monaural hearing frequency response curve can be more accurate.
More specifically, under the condition that the user personal bilateral hearing frequency response curve is smoothly generated in the step S4, the method enters the step S5, at the moment, the obtained personal bilateral hearing frequency response curve is subjected to left-right customized audio EQ fusion through the APP, convenience is provided for subsequent application of the generated frequency response curve, at the moment, the personal frequency response curve test can be judged to be completed, personal left-right ear hearing frequency response compensation curve data are obtained, the data can be stored in the intelligent equipment, and conditions are provided for subsequent retransmission to the earphone through the APP.
It is worth pointing out that, a plurality of groups of frequency response curve data in different modes are prestored in an earphone chip of the earphone, and the frequency response curve data in the different modes of the plurality of groups correspond to different audio types, namely, the frequency response curve data are the same and similar as those of the traditional earphone, so that even when the frequency response compensation curve data of the left and right ears of the user is not generated, a certain compensation effect can be provided, and meanwhile, data fusion can be realized after the frequency response compensation curve data of the left and right ears of the user are subsequently generated, so that data support is provided for improving the hearing sense.
Similarly, a plurality of fixed frequency points are opened in the APP installed in the intelligent equipment, and a user can configure different fixed frequency points to form user-defined frequency response curve data according to the self condition, so that frequency response curves of more modes are provided, and adjustability is better.
In addition, the embodiment also provides application of the personal left and right ear hearing frequency response compensation curve data generated by the generation method for distinguishing the left and right ear customized audio frequency response curve. FIG. 2 is a flow chart of the present invention for applying a customized audio response to differentiate between the left and right ears. As shown in fig. 2, the application of the customized audio response curve for distinguishing the left ear from the right ear provided by the present embodiment includes the following steps:
firstly, initializing audio;
first-selected, need to ensure that the earphone is in the wireless connection state with the smart machine who installs APP, for follow-up through APP with the individual left and right ears hearing frequency response compensation curve data passback that generate to the earphone provide the condition to under the normal condition of both connection states, open and initialize the audio frequency.
Step two, fusing EQ;
personal left and right ear hearing frequency response compensation curve data generated in the testing process are transmitted back to the earphone through the APP in the intelligent equipment, and the returned personal left and right ear hearing frequency response compensation curve data and default frequency response curve data are fused by the earphone chip DSP to form output data, so that conditions are provided for subsequent compensation audio output.
Step three, signal adjustment;
output data is automatically adjusted through an AGC amplifying circuit, automatic gain control is achieved, and the audio output performance of the earphone is guaranteed.
Step four, audio output;
left and right sound channels are distinguished, and the sound is output from the SPK, so that the audio output effect is improved, audio with higher detailed expression is provided for a user, and the listening feeling of the user is improved.
And step five, ending the audio output.
As a preferred embodiment, in the second step, the default frequency response curve data fused with the individual left and right ear hearing frequency response compensation curve data is frequency response curve data of a corresponding mode pre-stored in the earphone chip for currently-turned-on audio, so that the audio mode is better matched, the matching performance is higher, and the effect is better.
The generation method and the application of ear customized audio frequency response curve about distinguishing that this embodiment provided, the case is with earphone and the smart machine wireless connection who installs APP, then carry out the hearing test through APP control earphone, generate user's individual left and right ears hearing frequency response compensation curve data, not only the formation process is simple easy to operate, in addition, can also be through APP with individual left and right ears hearing frequency response compensation curve data passback to the earphone after individual left and right ears hearing frequency response compensation curve data generation, through the earphone chip with individual left and right ears hearing frequency response compensation curve data fuse with acquiescence frequency response curve data, realize the compensation to the left and right ears hearing difference of earphone, and, individual left and right ears hearing frequency response compensation curve data is obtained by user's test completely, ensure can the complete matching user, thereby guaranteed that the user can hear the slight difference of audio frequency, the sense of hearing is better.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made without departing from the spirit and scope of the invention.
Claims (9)
1. A generation method for distinguishing left and right ear customized audio response curves is characterized by comprising the following steps:
step S1, establishing connection;
the method comprises the steps that wireless connection is established between an earphone and intelligent equipment provided with an APP, and the earphone is started through the APP and enters a test;
s2, detecting environmental noise;
detecting external environment noise of the earphone, judging the level of the environment noise, if the level of the environment noise is low, executing the step S3, otherwise, continuing to execute the step S2;
s3, detecting wearing;
detecting the wearing tightness of the earphone worn by the user, judging whether the wearing tightness is good or not, if the wearing tightness is good, executing a step S4, otherwise, continuing to execute the step S3;
s4, testing and generating a frequency response curve;
firstly, a single-ear fixed-frequency playing sound source with descending volume is carried out, a user generates a personal single-ear hearing frequency response curve on the APP according to the feedback of the hearing sense, then another single-ear hearing frequency response curve is generated by the same method to obtain a personal bilateral hearing frequency response curve, if the bilateral hearing frequency response curve can be obtained smoothly, the step S5 is executed, if the bilateral hearing frequency response curve can not be obtained smoothly, the step S2 is returned to the execution step, and meanwhile, the left and right testing channels are switched;
s5, customizing audio fusion;
through the APP will obtain individual about bilateral hearing frequency response curve customization audio frequency EQ fuses, accomplishes individual frequency response curve test, obtains individual left and right ears hearing frequency response compensation curve data.
2. The method as claimed in claim 1, wherein in step S1, the wireless connection between the earphone and the smart device is bluetooth connection.
3. The method as claimed in claim 1, wherein the step S2 of detecting the ambient noise outside the earphone is performed in an open and quiet environment.
4. The method as claimed in claim 1, wherein in step S2, when the ambient noise outside the earphone is detected, if the ambient noise level is high, a noise exceeding prompt is issued and displayed in the APP.
5. The method as claimed in claim 1, wherein the step S4 is performed to generate the monaural hearing response curve of the individual while ensuring that the other monaural hearing curve is muted.
6. The method as claimed in claim 1, wherein a plurality of sets of frequency response curve data of different modes are pre-stored in the earphone chip of the earphone, and correspond to different audio types.
7. The method as claimed in claim 1, wherein a plurality of fixed frequency points are opened in the APP of the smart device, and the fixed frequency points are configured differently to form custom frequency response curve data.
8. Use of a left and right ear-specific audio response curve generated by the method for generating a left and right ear-specific audio response curve according to any one of claims 1-7, for compensating the hearing response of the individual's left and right ears, comprising the steps of:
firstly, initializing audio;
ensuring that the earphone and the intelligent equipment provided with the APP are in a wireless connection state, and starting and initializing audio;
step two, fusing EQ;
the generated personal left and right ear hearing frequency response compensation curve data are transmitted back to the earphone through the APP in the intelligent device, and the earphone chip DSP fuses the transmitted personal left and right ear hearing frequency response compensation curve data and default frequency response curve data to form output data;
step three, signal adjustment;
the output data is automatically adjusted through an AGC amplifying circuit, and automatic gain control is realized;
step four, audio output;
distinguishing left and right sound channels and outputting the left and right sound channels from the SPK;
and step five, ending the audio output.
9. The use of the customized audio response curve according to claim 1, wherein in the second step, the default response curve data is a pre-stored response curve data of a corresponding mode of the turned-on audio in the earphone chip.
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