CN109862458B - Psychological perception state detection system and method - Google Patents
Psychological perception state detection system and method Download PDFInfo
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Abstract
The invention provides a psychological perception state detection system, which comprises an earphone, a sound acquisition device, a control device, a cardiovascular index detection device and a brain wave detection device, wherein the earphone is connected with the sound acquisition device; the control device comprises a signal transmission unit and a noise reduction unit; the signal transmission unit is used for receiving the environmental noise signal collected by the sound collection device; the noise reduction unit is used for generating an inverse noise reduction signal according to the environment noise signal; the signal transmission unit is also used for sending the anti-phase noise-eliminating signal and the recorded audio signals with different volumes to the earphone; the cardiovascular index detection device and the brain wave detection device are respectively used for testing the cardiovascular index and the brain wave index of the tested person when the earphone plays the audio signal. The invention also provides a psychological perception state detection method. The invention solves the technical problems of higher hardware equipment cost, maintenance cost and labor cost when the traditional sound volume is tested to influence the psychological perception state of a tested person.
Description
Technical Field
The invention relates to the technical field of data analysis, in particular to a system and a method for detecting a psychological perception state.
Background
Modern science has found that sound volume can have an effect on the psycho-perceptual state of a user. At present, the influence of the sound volume on the psychological perception state of a tested person is generally arranged to enable the tested person to enter a specially arranged sound insulation room, and various specialized devices are utilized to carry out related detection experiments. However, such methods still have high hardware equipment cost and maintenance cost, and require special staff to follow in real time, so that such detection experiments have time and place limitations, and are not favorable for acquiring and acquiring sufficient data sample size.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide a system and a method for detecting a psychological perception state, and aims to solve the technical problems of high hardware equipment cost, maintenance cost and labor cost when the conventional test sound volume influences the psychological perception state of a tested person.
In order to achieve the above object, the present invention provides a psychological sensing state detection system, which comprises an earphone, a sound collection device, a control device, a cardiovascular index detection device, and a brain wave detection device; the earphone, the sound acquisition device, the cardiovascular index detection device and the brain wave detection device are respectively connected with the control device;
the control device comprises a signal transmission unit and a noise reduction unit;
the signal transmission unit is used for receiving the environmental noise signal collected by the sound collection device; the noise reduction unit is used for generating an inverse noise reduction signal according to the environment noise signal; the signal transmission unit is also used for sending the anti-phase noise-eliminating signal and the recorded audio signals with different volumes to an earphone;
the cardiovascular index detection device is used for testing the cardiovascular index of the tested person when the earphone plays the audio signal and sending the cardiovascular index test data to the control device;
the brain wave detection device is used for testing the brain wave indexes of the testee when the earphone plays the audio signals and sending the brain wave index test data to the control device.
Preferably, the sound collection device comprises a plurality of microphones, and the microphones are used for collecting an ambient noise signal and transmitting the ambient noise signal to the noise reduction unit;
the noise reduction unit comprises a noise acquisition module, an environmental noise characteristic acquisition module and an inverse noise-eliminating signal generation module;
the noise acquisition module is used for acquiring an environment noise signal;
the environmental noise characteristic acquisition module is used for acquiring the phase, frequency and amplitude corresponding to each environmental noise signal;
the reverse phase noise-canceling signal generating module is used for determining a main environmental noise signal and a corresponding phase, frequency and amplitude according to the phase, frequency and amplitude corresponding to each environmental noise signal; and generating an inverse noise cancellation signal with the phase opposite to that of the main environmental noise signal, the same frequency and the same amplitude according to the phase, the frequency and the amplitude of the main environmental noise signal.
Preferably, the control device further comprises a hearing protection unit; the hearing protection unit is used for acquiring the volume value of the audio signal sent to the earphone and the output time of the audio signal; and when the volume value exceeds a preset volume threshold value and/or the output time of the audio signal exceeds a preset time threshold value, stopping the output of the audio signal by the signal transmission unit.
Preferably, the earphone comprises an ear muff and an earphone cord, a loudspeaker is arranged in the ear muff, and the earphone is connected with the control device through the earphone cord; the loudspeaker is used for outputting the anti-phase noise-eliminating signal and the audio signals with different volumes.
Preferably, the system further comprises a display screen terminal and a question answering device which are respectively connected with the control device; the display screen terminal is used for displaying test question information; the answer device is used for inputting answer data of the tested person and transmitting the answer data to the control device.
In addition, in order to achieve the above object, the present invention further provides a method for detecting a psychological perception state, applied to the psychological perception state detection system, the method comprising the steps of:
receiving an environmental noise signal collected by a sound collection device; generating an inverse noise cancellation signal according to the environment noise signal; sending the anti-phase noise-canceling signal and the recorded audio signals with different volumes to an earphone;
receiving cardiovascular index test data of a tested person sent by a cardiovascular index detection device;
receiving the brain wave index test data of the tested person sent by the brain wave detection device.
Preferably, the step of generating an inverted noise cancellation signal according to the environmental noise signal specifically includes:
acquiring the phase, frequency and amplitude corresponding to each environmental noise signal;
determining a main environmental noise signal and a corresponding phase, frequency and amplitude according to the phase, frequency and amplitude corresponding to each environmental noise signal;
and generating an inverse noise cancellation signal with the phase opposite to that of the main environmental noise signal, the same frequency and the same amplitude according to the phase, the frequency and the amplitude of the main environmental noise signal.
Preferably, the step of sending the inverted noise-canceling signal and the recorded audio signal with different volumes to an earphone further includes:
acquiring the volume value of the audio signal sent to the earphone and the output time of the audio signal;
and when the volume value exceeds a preset volume threshold value and/or the output time of the audio signal exceeds a preset time threshold value, stopping outputting the audio signal.
Preferably, before the step of receiving the ambient noise signal collected by the sound collection device, the method further includes:
and sending a noise signal acquisition signal to the preset microphone so that the preset microphone acquires an environmental noise signal within a preset frequency range.
Preferably, the step of sending the inverted noise-canceling signal and the recorded audio signal with different volumes to an earphone further includes:
sending test question display information to a preset display screen terminal; and receiving the answer data of the tested person recorded by the preset answer device.
The embodiment of the invention provides a psychological perception state detection system and a psychological perception state detection method. The powerful operation function of the control device is utilized to replace the earphone to perform noise reduction processing, a noise reduction processing device is not required to be loaded in the earphone, the structure of the earphone is simplified, the cost is reduced, the total weight and the volume of the earphone are reduced, meanwhile, the hardware requirement of the psychological perception state test of sound volume and the investment of hardware/manpower cost are also reduced, and the popularization of a test experiment and the wide collection of sample data are facilitated.
Drawings
FIG. 1 is a schematic diagram of the psychological perception state detecting system according to the present invention;
FIG. 2 is a schematic diagram of a preferred hardware configuration of the mental state detection system according to the present invention;
fig. 3 is a flowchart illustrating a method for detecting a psychological perception state according to a first embodiment of the present invention.
The objects, features and advantages of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Please refer to fig. 1, which is a system for detecting a psychological perception state according to various embodiments of the present invention, specifically including an earphone 10, a sound collecting device 20, a control device 30, a cardiovascular index detecting device 40, and a brain wave detecting device 50; the earphone 10, the sound collection device 20, the cardiovascular index detection device 40 and the brain wave detection device 50 are respectively connected with the control device 30;
preferably, the earphone 10 includes an ear cup and an earphone cord, a speaker is disposed in the ear cup, and the earphone 10 is connected to the control device 30 through the earphone cord; the loudspeaker is used for outputting the anti-phase noise-eliminating signal and the audio signals with different volumes.
Compared with the existing specialized sound insulation room, the sound insulation room has no special hardware equipment limitation, and can be tested in a common indoor environment. The earphone adopts the ear muff can wrap up tester's external ear to more be favorable to the noise among the separation external environment, and then produce better syllable-dividing effect.
The control device 30 may be embodied in various forms. For example, mobile terminals such as mobile phones, tablet computers, notebook computers, palmtop computers, Personal Digital Assistants (PDAs), Portable Media Players (PMPs), and fixed terminals such as Digital TVs, desktop computers, and the like.
The control device 30 comprises a signal transmission unit 310 and a noise reduction unit 320;
the signal transmission unit 310 is configured to receive an environmental noise signal collected by the sound collection device 20; the noise reduction unit 320 is configured to generate an inverse noise cancellation signal according to the ambient noise signal; the signal transmission unit 310 is further configured to send the inverted noise-canceling signal and the recorded audio signals with different volumes to the earphone 10;
the signal transmission unit 310 may specifically receive the environmental noise signal collected by the sound collection device 20 through a wired or wireless communication manner.
Specifically, the sound collection device 20 includes several microphones, and the microphones are used to collect the ambient noise signal and transmit the ambient noise signal to the noise reduction unit 320; the microphone is arranged in an accessory area of the head of the tested person, so that the distribution of the acquired environmental noise signals is more suitable for the environment of the tested person.
The denoising unit 320 includes a noise collecting module 3201, an ambient noise feature obtaining module 3202, and an inverse denoising signal generating module 3203;
the noise collection module 3201 is used for obtaining an environmental noise signal
The environmental noise characteristic obtaining module 3202 is configured to obtain a phase, a frequency, and an amplitude corresponding to each of the environmental noise signals; the environmental noise signals collected and transmitted by each microphone are processed and analyzed to obtain characteristic parameter values of various environmental noise signals: phase, frequency and amplitude of the signal. In the processing process, the method also can relate to data filtering, Fourier transform and simulation and correction of signal wave functions of various signals.
The inverse noise canceling signal generating module 3203 is configured to determine a main ambient noise signal and a corresponding phase, frequency, and amplitude according to a phase, frequency, and amplitude corresponding to each of the ambient noise signals; and generating an inverse noise cancellation signal with the phase opposite to that of the main environmental noise signal, the same frequency and the same amplitude according to the phase, the frequency and the amplitude of the main environmental noise signal.
Since various noise signals may exist in the environment, wherein the noise signal that plays a main role in interference is defined as a "main ambient noise signal", specifically, the inverse noise cancellation signal generation module 3203 may calculate the signal strength of each ambient noise signal, and the ambient noise signal with the largest signal strength is labeled as the main ambient noise signal.
When the control device 30 determines the main ambient noise signal according to the collected ambient noise signals, it generates the anti-phase noise cancellation signal according to the main ambient noise signal.
For example, the phase, frequency and amplitude of the main environmental noise signal are analyzed; after the analysis is finished, generating an inverse noise-eliminating signal with the phase opposite to, the same frequency as and the same amplitude as the main environment noise signal through the analyzed phase, frequency and amplitude
The anti-phase noise-canceling signal is sent to the earphone, and when the earphone plays audio signals with different volumes, the anti-phase noise-canceling signal is superposed to eliminate surrounding environment noise signals when the audio signals are played, so that the sound interference of the environment noise to a tested person is eliminated.
The audio signals played by the earphone can process the same original audio signals to obtain audio signals with different volumes; the audio signals are divided according to different sound volumes (average decibel values) so as to be divided into audio signals with different sound volumes.
The cardiovascular index detection device 40 is configured to test cardiovascular indexes of the subject when the earphone plays the audio signal, and send cardiovascular index test data to the control device;
among these, cardiovascular indicators specifically include but are not limited to: resting heart rate, blood pressure value.
The brain wave detection device 50 is configured to test a brain wave index of the subject when the earphone plays the audio signal, and send the brain wave index test data to the control device.
Brain wave indicators specifically include, but are not limited to: alpha wave, beta wave, theta wave, wave.
While the earphone 10 plays, the cardiovascular index detection device 40 and the brain wave detection device 50 respectively detect the cardiovascular condition and the brain wave condition of the user, and transmit the corresponding data to the control device 30, so that the control device 30 can perform subsequent analysis and processing.
In this embodiment, after the sound collection device is arranged to collect the environmental noise signal, the control device determines the main environmental noise signal according to the collected environmental noise signal, generates the anti-phase noise cancellation signal according to the main environmental noise signal, and finally sends the anti-phase noise cancellation signal and the audio signals with different volumes to the earphone, so that the earphone can eliminate the surrounding environmental noise by using the anti-phase noise cancellation signal when playing audio, and the playing tone quality of the earphone is improved. The powerful operation function of the control device is utilized to replace the earphone to perform noise reduction processing, a noise reduction processing device is not required to be loaded in the earphone, the structure of the earphone is simplified, the total weight and the volume of the earphone are reduced, meanwhile, the hardware requirement of the psychological perception state test of sound volume and the investment of hardware/manpower cost are also reduced, and the popularization of a test experiment and the wide collection of sample data are facilitated.
Further, as shown in fig. 1, the control device 30 further includes a hearing protection unit 330; the hearing protection unit 330 is configured to obtain a volume value of the audio signal sent to the earphone 10 and an output time of the audio signal; when the volume value exceeds a preset volume threshold and/or the output time of the audio signal exceeds a preset time threshold, the signal transmission unit 310 stops outputting the audio signal.
When the volume of the audio played by the earphone is too high and the playing time is too long, the hearing of the testee is easily damaged. Therefore, the hearing protection unit 330 is provided to help protect the hearing of the subject. The specific preset volume threshold and the preset time threshold may be set according to actual empirical values. After the output of the audio signal by the suspension signal transmission unit 310, the control device 30 may emit a corresponding sound or light prompt signal to prompt the suspension of the output of the audio signal.
Further, as shown in fig. 2, fig. 2 is a preferred psychological perception state detecting system, which further includes a display screen terminal 60 and an answering device 70 respectively connected to the control device; the display screen terminal 60 is used for displaying test question information; the answering device 70 is used for inputting the answering data of the testee and transmitting the answering data to the control device.
The display screen terminal 60 may be a display screen or a display; the answering device 70 may be an answering machine that includes a plurality of keys. In the test process, the display screen terminal 60 displays the relevant test questions, and the testee answers the questions through the answering device 70 according to the personal conditions. Therefore, the answer of the tested person to the test question is recorded, so that the influence of the sound volume on the psychological perception state of the tested person can be analyzed subsequently.
The invention also provides a psychological perception state detection method which is applied to the psychological perception state detection system. As shown in fig. 3, the method comprises the steps of:
step S10, receiving an environmental noise signal collected by a sound collection device;
specifically, the environmental noise signal collected by the sound collection device can be received through a wired or wireless communication mode. Specifically, the sound collection device comprises a plurality of microphones, and the microphones are used for collecting an environmental noise signal and transmitting the environmental noise signal to the noise reduction unit; the microphone is arranged in an accessory area of the head of the tested person, so that the distribution of the acquired environmental noise signals is more suitable for the environment of the tested person.
Step S20, generating an inverted noise-eliminating signal according to the environment noise signal;
the method specifically comprises the following steps:
step S21, obtaining the phase, frequency and amplitude corresponding to each environment noise signal;
step S22, determining the main environmental noise signal and the corresponding phase, frequency and amplitude according to the phase, frequency and amplitude corresponding to each environmental noise signal;
and step S23, generating an inverse noise-canceling signal with the phase opposite to, the same frequency as and the same amplitude as the main environmental noise signal according to the phase, the frequency and the amplitude of the main environmental noise signal.
The environmental noise signals collected and transmitted by each microphone are processed and analyzed to obtain characteristic parameter values of various environmental noise signals: phase, frequency and amplitude of the signal. In the processing process, the method also can relate to data filtering, Fourier transform and simulation and correction of signal wave functions of various signals.
Since various noise signals may exist in the environment, wherein the noise signal playing a main role in interference is defined as "main ambient noise signal", specifically, the signal strength of each ambient noise signal may be calculated, and the ambient noise signal with the largest signal strength is labeled as the main ambient noise signal.
And after determining a main environmental noise signal according to the collected environmental noise signals, generating an anti-phase noise-canceling signal according to the main environmental noise signal.
For example, the phase, frequency and amplitude of the main environmental noise signal are analyzed; after the analysis is completed, the phase, the frequency and the amplitude are analyzed to generate an inverse noise elimination signal which has the opposite phase, the same frequency and the same amplitude with the main environment noise signal.
Step S30, the anti-phase noise-eliminating signal and the recorded audio signals with different volumes are sent to an earphone;
the anti-phase noise-canceling signal is sent to the earphone, and when the earphone plays audio signals with different volumes, the anti-phase noise-canceling signal is superposed to eliminate surrounding environment noise signals when the audio signals are played, so that the sound interference of the environment noise to a tested person is eliminated.
The audio signals played by the earphone can process the same original audio signals to obtain audio signals with different volumes; the audio signals are divided according to different sound volumes (average decibel values) so as to be divided into audio signals with different sound volumes.
Step S40, receiving cardiovascular index test data of the tested person sent by the cardiovascular index detection device;
among these, cardiovascular indicators specifically include but are not limited to: resting heart rate, blood pressure value.
Step S50 is to receive the electroencephalogram index test data of the subject sent from the electroencephalogram detecting apparatus.
Brain wave indicators specifically include, but are not limited to: alpha wave, beta wave, theta wave, wave.
When the earphone is played, the cardiovascular index detection device and the brain wave detection device respectively detect the cardiovascular condition and the brain wave condition of the user and transmit corresponding data to the control device, so that the control device can conveniently perform subsequent analysis and processing.
In this embodiment, after the sound collection device is arranged to collect the environmental noise signal, the control device determines the main environmental noise signal according to the collected environmental noise signal, generates the anti-phase noise cancellation signal according to the main environmental noise signal, and finally sends the anti-phase noise cancellation signal and the audio signals with different volumes to the earphone, so that the earphone can eliminate the surrounding environmental noise by using the anti-phase noise cancellation signal when playing audio, and the playing tone quality of the earphone is improved. The powerful operation function of the control device is utilized to replace the earphone to perform noise reduction processing, a noise reduction processing device is not required to be loaded in the earphone, the structure of the earphone is simplified, the cost is reduced, the total weight and the volume of the earphone are reduced, meanwhile, the hardware requirement of the psychological perception state test of sound volume and the investment of hardware/manpower cost are also reduced, and the popularization of a test experiment and the wide collection of sample data are facilitated.
Further, the step of sending the inverted noise-canceling signal and the recorded audio signal with different volume to an earphone further includes:
step S60, acquiring the volume value of the audio signal sent to the earphone and the output time of the audio signal;
and step S61, when the volume value exceeds a preset volume threshold value and/or the output time of the audio signal exceeds a preset time threshold value, stopping outputting the audio signal.
When the volume of the audio played by the earphone is too high and the playing time is too long, the hearing of the testee is easily damaged. Therefore, the hearing protection unit 330 is provided to help protect the hearing of the subject. The specific preset volume threshold and the preset time threshold may be set according to actual empirical values. After the output of the audio signal by the suspension signal transmission unit 310, the control device 30 may emit a corresponding sound or light prompt signal to prompt the suspension of the output of the audio signal.
Further, before the step of receiving the ambient noise signal collected by the sound collection device, the method further includes:
step S70, sending a noise signal collection signal to the preset microphone, so that the preset microphone collects an ambient noise signal within a preset frequency range.
Because the sound that the human body can perceive is the sound signal of certain frequency range (such as 20Hz to 20000Hz), consequently through sending noise signal collection signal to predetermineeing the microphone, control it and gather the suitable environmental noise signal of predetermineeing frequency range (such as 20Hz to 20000Hz), avoid collection that exceeds standard, reduce controlling means's operation load to improve the degree of accuracy of anti-phase noise elimination signal, and then help reinforcing noise cancelling effect.
Further, the step of sending the inverted noise-canceling signal and the recorded audio signal with different volume to an earphone further includes:
step S70, sending display test question information to a preset display screen terminal; and step S71, receiving the answer data of the tested person recorded by the preset answer device.
And a display screen terminal and a question answering device which are respectively connected with the control device are arranged on the test site. The display screen terminal can be a display screen or a display; the answering device can be an answering machine which comprises a plurality of keys. In the testing process, relevant testing questions are displayed on the display screen terminal, and the testee answers the questions through the answering device according to personal conditions. Therefore, the answer of the tested person to the test question is recorded, so that the influence of the test sound volume on the psychological perception state of the tested person can be analyzed subsequently.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
1. A psychological perception state detection system is characterized by comprising an earphone, a sound acquisition device, a control device, a cardiovascular index detection device and a brain wave detection device; the earphone, the sound acquisition device, the cardiovascular index detection device and the brain wave detection device are respectively connected with the control device, and the system further comprises a display screen terminal and a question answering device which are respectively connected with the control device; the display screen terminal is used for displaying test question information; the answer device is used for inputting answer data of the tested person and transmitting the answer data to the control device;
the control device comprises a signal transmission unit and a noise reduction unit;
the signal transmission unit is used for receiving the environmental noise signal collected by the sound collection device; the noise reduction unit is used for generating an inverse noise reduction signal according to the environment noise signal; the signal transmission unit is further used for transmitting the anti-phase noise-canceling signal and the recorded audio signals with different volumes to earphones, wherein the earphones comprise earmuffs, and the ambient noise signals comprise main ambient noise signals;
the cardiovascular index detection device is used for testing the cardiovascular index of the tested person when the earphone plays the audio signal and sending the cardiovascular index test data to the control device;
the brain wave detection device is used for testing the brain wave indexes of the testee when the earphone plays the audio signals and sending the brain wave index test data to the control device.
2. The system of claim 1, wherein the sound collection device comprises a plurality of microphones, the microphones being configured to collect an ambient noise signal and transmit the ambient noise signal to the noise reduction unit;
the noise reduction unit comprises a noise acquisition module, an environmental noise characteristic acquisition module and an inverse noise-eliminating signal generation module;
the noise acquisition module is used for acquiring an environment noise signal;
the environmental noise characteristic acquisition module is used for acquiring the phase, frequency and amplitude corresponding to each environmental noise signal;
the reverse phase noise-canceling signal generating module is used for determining the main environmental noise signal and the corresponding phase, frequency and amplitude according to the phase, frequency and amplitude corresponding to each environmental noise signal; and generating an inverse noise cancellation signal with the phase opposite to that of the main environmental noise signal, the same frequency and the same amplitude according to the phase, the frequency and the amplitude of the main environmental noise signal.
3. The system of claim 1, wherein said control device further comprises a hearing protection unit; the hearing protection unit is used for acquiring the volume value of the audio signal sent to the earphone and the output time of the audio signal; and when the volume value exceeds a preset volume threshold value and/or the output time of the audio signal exceeds a preset time threshold value, stopping the output of the audio signal by the signal transmission unit.
4. The system of claim 1, wherein the ear-phones comprise ear-cups and ear-phone wires, the ear-cups are provided with speakers, and the ear-phones are connected to the control device through the ear-phone wires; the loudspeaker is used for outputting the anti-phase noise-eliminating signal and the audio signals with different volumes.
5. A psychological perception state detection method applied to the psychological perception state detection system according to any one of claims 1 to 4, wherein the method comprises the steps of:
receiving an environmental noise signal collected by a sound collection device;
generating an inverse noise cancellation signal according to the environment noise signal;
sending the anti-phase noise-canceling signal and the recorded audio signals with different volumes to an earphone;
receiving cardiovascular index test data of a tested person sent by a cardiovascular index detection device;
receiving the brain wave index test data of the tested person sent by the brain wave detection device.
6. The method for detecting a psychological perception state according to claim 5, wherein the step of generating an inverted noise-canceling signal according to the environmental noise signal specifically includes:
acquiring the phase, frequency and amplitude corresponding to each environmental noise signal;
determining a main environmental noise signal and a corresponding phase, frequency and amplitude according to the phase, frequency and amplitude corresponding to each environmental noise signal;
and generating an inverse noise cancellation signal with the phase opposite to that of the main environmental noise signal, the same frequency and the same amplitude according to the phase, the frequency and the amplitude of the main environmental noise signal.
7. The mental state detection method of claim 5, wherein said step of sending said inverted noise canceling signal and said recorded audio signal of different volume to an earphone further comprises:
acquiring the volume value of the audio signal sent to the earphone and the output time of the audio signal;
and when the volume value exceeds a preset volume threshold value and/or the output time of the audio signal exceeds a preset time threshold value, stopping outputting the audio signal.
8. The mental state detection method of claim 5, wherein said step of receiving the ambient noise signal collected by the sound collection device is preceded by the step of:
and sending a noise signal acquisition signal to the preset microphone so that the preset microphone acquires an environmental noise signal within a preset frequency range.
9. The mental state detection method of claim 5, wherein said step of sending said inverted noise canceling signal and said recorded audio signal of different volume to an earphone further comprises:
sending test question display information to a preset display screen terminal; and receiving the answer data of the tested person recorded by the preset answer device.
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| CN104254358A (en) * | 2012-04-26 | 2014-12-31 | 体悟C&C股份有限公司 | System and method for potentiating effective brainwave by controling volume of sound |
| CN205268165U (en) * | 2015-07-24 | 2016-06-01 | 杨东欣 | Multi -functional mental health testboard |
| CN205514631U (en) * | 2016-03-15 | 2016-08-31 | 邵阳职业技术学院 | Simple structure's mental health testing arrangement |
| CN106730239A (en) * | 2017-02-07 | 2017-05-31 | 陈大庆 | A kind of closed loop hypnosis head-shield based on brain wave monitoring |
| CN107376091A (en) * | 2017-06-30 | 2017-11-24 | 重庆柚瓣家科技有限公司 | It is adapted to the intelligent music relaxation system of old application |
| CN107743279A (en) * | 2017-10-09 | 2018-02-27 | 维沃移动通信有限公司 | A kind of earphone noise-reduction method, earphone and mobile terminal |
| CN108989931A (en) * | 2018-06-19 | 2018-12-11 | 美特科技(苏州)有限公司 | Hearing-protection earphone and its method for protecting hearing ability, computer program memory medium |
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