CN108270913B - Mobile terminal and hearing protection method - Google Patents

Mobile terminal and hearing protection method Download PDF

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CN108270913B
CN108270913B CN201710004046.4A CN201710004046A CN108270913B CN 108270913 B CN108270913 B CN 108270913B CN 201710004046 A CN201710004046 A CN 201710004046A CN 108270913 B CN108270913 B CN 108270913B
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volume
earphone
sound
level
threshold
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CN108270913A (en
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帅哲
陈飞
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ZTE Corp
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ZTE Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
    • H04M1/7243—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality with interactive means for internal management of messages
    • H04M1/72433—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality with interactive means for internal management of messages for voice messaging, e.g. dictaphones
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • General Business, Economics & Management (AREA)
  • Human Computer Interaction (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Telephone Function (AREA)

Abstract

The invention relates to a mobile terminal which comprises a judging module and a configuration module. The method comprises the steps that a judging module obtains the earphone model of an earphone accessed into the mobile terminal, a configuration module obtains a safe volume threshold Vs of the earphone according to the earphone model, the safe volume threshold Vs is set to be the volume level number of a preset level N, whether a signal confirming the level number of the volume is received or not is judged, when the signal confirming the level number of the volume is received, the confirmed volume level number is set to be the system volume V, and audio playing is conducted according to the system volume V. The mobile terminal and the hearing protection method provided by the invention provide objective and safe system volume and sound energy control for the user so as to achieve the effect of protecting the hearing of the user.

Description

Mobile terminal and hearing protection method
[ technical field ] A method for producing a semiconductor device
The present invention relates to the field of control, and more particularly, to a mobile terminal and a hearing protection method.
[ background of the invention ]
With the rapid development of the mobile internet and the popularization of the intellectualization of the mobile communication terminal, more and more functions are carried by the mobile terminal, and the intelligent terminal has been deeply involved in the aspects of our lives. On a regular bus, a subway and a street, people can see that people take earphones everywhere, and use the intelligent terminal to listen to music, play games, watch movies, listen to FM radio and the like, so that under the condition that the surrounding environment is noisy, the identification of sound content in the earphones by people can be influenced. Generally, a general reaction of a person is to increase the volume to improve the recognition of sound, but when the volume is large to a certain extent and the listening time exceeds a certain time, the sound exceeds the physiological tolerance range of the human ear, and the hearing is damaged. If the headset is improperly used for a long period of time, irreversible permanent damage to hearing may occur.
According to the statistics of the world health organization, nearly half of users listen to the audio equipment of the smart phone at unsafe volume, which causes more or less damage to hearing. Physiologically, at birth, there are about 4 ten thousand hearing hair cells in the cochlea, and the hair cells will not regenerate once they die. Once hearing is impaired, it is not lost, and therefore, it becomes important to safely listen to the sound using the mobile terminal and the earphone.
At present, each mobile phone manufacturer also has a corresponding design for hearing protection, for example, when a music player of a millet mobile phone is used for listening to music, the volume is increased to exceed a certain degree, a system can display a safety prompt, and the content of the safety prompt is as follows: "will the volume be turned up above the recommended level? Maintaining high volume for long periods of time may impair hearing. The user may select "cancel" or "determine". If the sound volume reaches the threshold, the sound volume can not be turned up continuously; and "confirm" indicates user approval, and the volume may continue to be turned up. The above safety reminding mode has the following problems:
first, in a listening system with a mobile terminal and an earphone, the earphone also has a significant effect, not only the mobile terminal but also the earphone, which determines the sound level. Under the condition of the same sound source output, the determination of the sound volume of the earphone mainly comprises the following parameters such as impedance, sensitivity and the like: the larger the impedance, the smaller the sound, and the smaller the background noise; the higher the sensitivity, the easier the drive, and the louder the sound. With the same input power, headphones with 125db and 85db sensitivity, the volume difference is clearly perceived in the sound output. The safe volume threshold of the existing mobile terminal is a fixed value, and the system volume threshold of the mobile terminal is not changed no matter what earphones are plugged. Therefore, the influence of the headphone type on the sound volume is not considered.
Secondly, for the influence of the hearing health of the user, at the inherent volume level, the listening time using the earphone is also a very important parameter affecting the hearing.
Safe listening time recommended by the world health organization:
85 decibels-noise in car-8 hours
90 db-mower author-2 hours 30 minutes
95 dB-motorcycle on (average) -47 min
100 dB-automobile horn-15 min
105 decibels-loud rock concert-285 seconds
120 db-Wuwu grand-drag or siren-9 seconds
Third, when the audio content is played at a certain volume, the output sound power of the earphones at different times is different. For example, in the same recording, the same volume of the mobile terminal system is used to play audio content, the output real-time sound power of the earphones which are switched to private language and loud noise is different, the real-time sound power of the wind falling leaves and the lightning strike is different, and the blank between two songs on one album is different from the real-time sound power when the songs are being played.
[ summary of the invention ]
In view of the above, the present invention provides a mobile terminal, including:
the judging module is used for acquiring the earphone model of the earphone accessed to the mobile terminal; and
the configuration module is used for acquiring a safe volume threshold Vs of the earphone according to the earphone model; setting the safe volume threshold Vs as the volume level number of the preset number of levels N, judging whether a signal for confirming the number of levels of the volume is received, setting the confirmed volume level number as the system volume V when the signal for confirming the number of levels of the volume is received, and playing audio according to the system volume V.
Optionally, the configuration module is further configured to obtain a daily acoustic energy safety level threshold Es, an acoustic power distribution curved surface, and an earphone sound insulation efficiency η of the earphone according to the earphone model, where the mobile terminal further includes:
and the control module is used for calculating the current day accumulated sound energy E according to the sound power distribution curved surface and the earphone sound insulation efficiency eta, judging whether the current day accumulated sound energy E exceeds a daily sound energy safety level threshold Es, pausing audio output when the current day accumulated sound energy E exceeds the daily sound energy safety level threshold Es, and displaying a prompt of whether to continue playing audio.
Optionally, the mobile terminal further includes:
a sampling module, configured to obtain an ambient noise level Lw according to the ambient noise level Lw and a formula Wn-W0-10(Lw/10)Calculating to obtain the sound power Wn of the environmental noise, wherein W0 is the reference sound power; and
the control module is further configured to calculate daily cumulative acoustic energy E according to the ambient noise acoustic power Wn, the acoustic power distribution curved surface, and the earphone sound insulation efficiency η.
Optionally, the configuration module is further configured to set the safe volume threshold Vs to a volume level of a preset level N, use the volume level of the preset level N/2 as a temporary volume, play a test tone audio, determine whether a signal confirming the volume level is received, and set the current temporary volume to the system volume V when the signal confirming the volume level is received, where the preset level N/2 is rounded when a remainder is present.
Optionally, the mobile terminal further includes:
and the storage module is used for storing a safe volume threshold Vs, a daily sound energy safety level threshold Es, a sound power distribution curved surface, a sound insulation efficiency eta of the earphone, the calculated daily accumulated sound energy E and the system volume V of the earphone.
The invention also provides a hearing protection method, which comprises the following steps:
acquiring the earphone model of an earphone accessed to the mobile terminal;
acquiring a safe volume threshold Vs of the earphone according to the earphone model; and
setting the safe volume threshold Vs as the volume level number of the preset number of levels N, judging whether a signal for confirming the number of levels of the volume is received, setting the confirmed volume level number as the system volume V when the signal for confirming the number of levels of the volume is received, and playing audio according to the system volume V.
Optionally, the hearing protection method comprises:
acquiring a daily sound energy safety level threshold Es, a sound power distribution curved surface and a sound insulation efficiency eta of the earphone according to the type of the earphone; and
and calculating the current day accumulated sound energy E according to the sound power distribution curved surface and the sound insulation efficiency eta of the earphone, judging whether the current day accumulated sound energy E exceeds a safety level threshold Es of the current day sound energy, pausing audio output when the current day accumulated sound energy E exceeds the safety level threshold Es of the current day sound energy, and displaying a prompt of whether to continue playing the audio.
Optionally, the hearing protection method comprises:
obtaining an ambient noise level Lw, according to whichLw, formula Wn W0 × 10(Lw/10)Calculating to obtain the sound power Wn of the environmental noise, wherein W0 is the reference sound power; and
and calculating daily accumulated sound energy E according to the environmental noise sound power Wn, the sound power distribution curved surface and the earphone sound insulation efficiency eta.
Optionally, the hearing protection method comprises:
setting the safety volume threshold Vs as a volume level of a preset level N, taking the volume level of the preset level N/2 as temporary volume, playing a test tone audio, judging whether a signal for confirming the volume level is received, and setting the current temporary volume as system volume V when the signal for confirming the volume level is received, wherein the preset level N/2 is rounded when a remainder exists.
Optionally, the hearing protection method comprises:
and storing a safe volume threshold Vs, a daily sound energy safety level threshold Es, a sound power distribution curved surface, a sound insulation efficiency eta of the earphone, the calculated daily accumulated sound energy E and the system volume V of the earphone.
The mobile terminal and the hearing protection method provided by the invention have the advantages that the safe volume threshold is obtained according to the type of the earphone, the system volume is set according to the safe volume threshold, the daily accumulated sound energy is calculated according to the sound power distribution curved surface and the sound insulation efficiency of the earphone, when the daily accumulated sound energy exceeds the daily sound energy safe level threshold, the audio output is suspended, the prompt of whether to continue playing the audio is displayed, the objectivity and the practicability of hearing protection are improved, and the effect of really protecting the hearing is achieved.
[ description of the drawings ]
FIG. 1 is a functional block diagram of a mobile terminal according to an embodiment of the present invention;
FIG. 2 is a functional block diagram of a mobile terminal according to a second embodiment of the present invention;
FIG. 3 is a flow chart of a third hearing protection method according to an embodiment of the invention;
FIG. 4 is a flow chart of a four hearing protection method according to an embodiment of the present invention;
FIG. 5 is a flow chart of a five hearing protection method according to an embodiment of the present invention;
fig. 6 is a flow chart of a six hearing protection method according to an embodiment of the present invention.
Reference numerals:
mobile terminal 10
Judging module 101
Memory module 102
Configuration module 103
Control module 105
Sampling module 107
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a functional block diagram of a mobile terminal according to an embodiment of the invention. The mobile terminal 10 shown in fig. 1 includes a determining module 101 and a configuring module 103, wherein the determining module 101 is connected to the configuring module 103, and the detailed description of each functional module is described below.
After the mobile terminal accesses the headset, the determining module 101 obtains the headset model of the headset accessing the mobile terminal, and specifically, the headset model of the headset accessing may be obtained in the following manner: the judgment module 101 judges whether an earphone is accessed, prompts a user to select an earphone type, and obtains the earphone type of the accessed earphone according to the type selected by the user; the judgment module 101 judges whether a bluetooth headset is connected, and when the bluetooth headset is connected, the configuration information of the bluetooth headset is directly read, and the headset model of the connected bluetooth headset is obtained. The configuration module 103 obtains a safe volume threshold Vs of the earphone according to the earphone model, sets the safe volume threshold Vs to a volume level number of a preset number N, determines whether a signal confirming the number of the volume levels is received, sets the confirmed volume level number to a system volume V when the signal confirming the number of the volume levels is received, and plays audio according to the system volume V.
Referring to fig. 2, fig. 2 is a functional block diagram of a mobile terminal according to an embodiment of the invention. The mobile terminal 10 shown in fig. 2 includes a determining module 101, a storage module 102, a configuration module 103, a control module 105, and a sampling module 107, where the determining module 101 is connected to the storage module 102, the storage module 102 is connected to the configuration module 103, the configuration module 103 is connected to the control module 105, and the control module 105 is further connected to the determining module 101 and the sampling module 107, respectively. The functional modules are explained in detail below.
When a mobile terminal is connected with an earphone, a judging module 101 acquires the earphone model of the earphone connected with the mobile terminal, a configuration module 103 acquires a safe volume threshold Vs of the earphone according to the earphone model, sets the safe volume threshold Vs as the volume level number of a preset level N, judges whether a signal confirming the volume level is received, sets the confirmed volume level number as a system volume V when the signal confirming the volume level is received, and plays audio according to the system volume V, specifically, the configuration module 103 sets the safe volume threshold Vs as the volume level number of the preset level N, sets the volume level of the preset level N/2 as a temporary volume, plays a test audio, judges whether the signal confirming the volume level is received, and sets the current temporary volume as the system volume V when the signal confirming the volume level is received, wherein, when the preset series N/2 has remainder, it is rounded.
It should be noted that, according to the acoustic formula Lw ═ 10lg (W/W0), where: lw- -Sound Power level (dB), W- -Sound Power (W), W0- -reference Sound Power 10-12W is added. It is derived that W-W0 10(Lw/10). The safe listening time is 85 decibels and 8 hours in combination with the recommendation of the world health organization, and the sound power is W-10-12*1085/10＝10-3.5Tile with acoustic energy E-W-t-10-3.58 × 3600 ═ 9.10735 joules. 100 dB 15 min, its sound power is W10-12*10100/10＝10-2Tile with acoustic energy E-W-t-10-215 × 60 ═ 9.00000 joules; 120 dB 9 s, its sound power is W10-12*10120/10＝100The acoustic energy is E W9 9.00000 joules 1 watt. The sound energy corresponding to other sound levels and time is about 9 joules, so the safety level of the cumulative sound energy per day is an objectively existing value, and whether the safety level of the cumulative sound energy per day is exceeded is an objective standard for evaluating whether listening is safe.
The configuration module 103 obtains a daily sound energy safety level threshold Es of the earphone according to the earphone model, for example, the safety level threshold Es is set to 9 joules, the configuration module 103 also obtains an acoustic power distribution curved surface and an earphone sound insulation efficiency η according to the earphone model, the control module 105 calculates daily accumulated sound energy E according to the acoustic power distribution curved surface and the earphone sound insulation efficiency η, and judges whether the daily accumulated sound energy E exceeds the daily sound energy safety level threshold Es, and when the daily accumulated sound energy E exceeds the daily sound energy safety level threshold Es, the audio output is suspended, and a prompt of whether the audio is continuously played is displayed.
It is further added that the sound energy distribution curve data, the noise isolation efficiency η and the safe volume threshold Vs of the earphones with known models can be obtained through measurement and calculation. Specifically, the method for obtaining the earphone sound energy distribution curved surface data comprises the following steps: driving the earphone with different input powers P (0-Pmax, Pmax depending on the terminal), sampling at different frequencies within the earphone frequency response curve. The sound level Lw (in dB) is measured by a sound level meter, and is represented by the formula Lw-10 log (W/W0) where the W0 reference sound power is 10-12W-W0 10, derived(Lw/10). Thus, the acoustic power W can be calculated. The earphone is driven by different powers, and the sound energy distribution curved surface of the earphone can be obtained by sampling and gathering under different frequencies. Similarly, the safe volume threshold Vs of the earphone with the known model and the noise isolation efficiency η of the earphone can be obtained through measurement and calculation of the earphone, the human ear simulator and the sound level meter.
When there is noise in the environment, the mobile terminal may obtain the sound energy level of the noise, specifically, the sampling module 107 obtains the ambient noise level Lw according to the ambient noise level Lw and the formula Wn — W0 × 10(Lw/10)Calculating to obtain the environmental noise sound power Wn, wherein W0 is a reference sound power, calculating daily cumulative sound energy E by the control module 105 according to the environmental noise sound power Wn, the sound power distribution curved surface, and the earphone sound insulation efficiency η, judging whether the daily cumulative sound energy E exceeds a daily sound energy safety level threshold Es, pausing audio output when the daily cumulative sound energy E exceeds the daily sound energy safety level threshold Es, and displaying a prompt whether to continue playing audio. The memory module 102 of the mobile terminal 10 stores a safe volume threshold Vs of the earphone, a safety level threshold Es of sound energy every day, a sound power distribution curved surface, a sound insulation efficiency η of the earphone, a calculated cumulative sound energy E every day, and a system volume V.
Referring to fig. 3, fig. 3 is a flow chart of a third hearing protection method according to an embodiment of the invention. The method is applied to the mobile terminal 10 shown in fig. 1-2. The method is described in detail below.
In step S301, after the mobile terminal accesses the headset, the determining module 101 obtains the model of the headset accessing the mobile terminal. Specifically, the headset model of the accessed headset may be acquired by: the judgment module 101 judges whether an earphone is accessed, prompts a user to select an earphone type, and obtains the earphone type of the accessed earphone according to the type selected by the user; the judgment module 101 judges whether a bluetooth headset is connected, and when the bluetooth headset is connected, the configuration information of the bluetooth headset is directly read, and the headset model of the connected bluetooth headset is obtained.
In step S303, the configuration module 103 obtains a safe volume threshold Vs of the headset according to the model of the headset.
In step S305, the configuration module 103 sets the safe volume threshold Vs to the volume level number of the preset number of levels N, determines whether a signal confirming the number of levels of the volume is received, sets the confirmed volume level number to the system volume V when the signal confirming the number of levels of the volume is received, and plays audio according to the system volume V.
Referring to fig. 4, fig. 4 is a flowchart of a four hearing protection method according to an embodiment of the invention. The method is applied to the mobile terminal 10 shown in fig. 1-2. The method is described in detail below.
In step S401, the configuration module 103 obtains a safe volume threshold Vs of the headset according to the model of the headset.
In step S403, the configuration module 103 sets the safe volume threshold Vs to a volume level of a preset level N, specifically, subdivides the safe volume threshold Vs according to the volume level N set by the user, where a level from 1 to N represents a current system volume level, and a volume level of N/2 is used as a temporary system volume, where N/2 is a remainder and is rounded.
In step S405, the configuration module 103 uses the volume level of N/2 as a temporary system volume and plays the test tone audio using the temporary system volume.
In step S407, it is determined whether the user is satisfied with the volume of the test tone audio.
In step S409, when the user is not satisfied, the configuration module 103 receives the selection signal of the user, selects a volume level preferred by the user, and returns to step S405.
In step S411, the user determines that the satisfactory volume level is confirmed as the system volume V, and saves the system volume V.
Referring to fig. 5, fig. 5 is a flowchart of a five-hearing protection method according to an embodiment of the invention. The method is applied to the mobile terminal 10 shown in fig. 1-2. The method is described in detail below.
In step S501, the control module 105 reads the safe volume V1, the sound energy distribution curve data, the current day accumulated sound energy E, the earphone noise isolation efficiency η, and the database recording time of listening to audio through the earphone through the storage module 102, where the storage module 102 may be a local database or a cloud server database. It should be added that the specific process of reading the safe volume V1 of the earphone includes the following cases: when the earphone is accessed to the mobile terminal 10 for the first time, reading a safety volume threshold Vs corresponding to the earphone model, setting the safety volume threshold Vs to be the volume level number of a preset number of levels N, judging whether a signal confirming the number of levels of the volume is received, and when the signal confirming the number of levels of the volume is received, setting the confirmed volume level number to be system volume V, wherein the set system volume V is the safety volume V1 of the earphone; when the headset is not first switched into the mobile terminal 10, the safe volume V1 of the headset is the system volume V corresponding to the headset that the user has set.
It is further added that the sound energy distribution curve data and the noise insulation efficiency η of the earphones of the known type can be obtained by measurement and calculation. Specifically, the method for obtaining the earphone sound energy distribution curved surface data comprises the following steps: the headset is driven at different input powers P (0-Pmax, Pmax depending on the terminal), sampled at different frequencies within the headset frequency response curve. The sound level Lw (in dB) is measured by a sound level meter, and is represented by the formula Lw-10 log (W/W0) where the W0 reference sound power is 10-12W-W0 10, derived(Lw/10). Thus, the acoustic power W can be calculated. The earphone is driven by different powers, and the sound energy distribution curved surface of the earphone can be obtained by sampling and gathering under different frequencies. Similarly, the noise isolation efficiency eta of the earphone with the known type can be obtained by measuring and calculating the earphone, the human ear simulation model and the sound level.
In step S502, the control module 105 determines whether the database recording time is the current day.
In step S503, if the database recording time of listening to audio through the headset is the current day, the control module applies the empirical value V1 of safe volume as the system volume, and the control module 105 starts the cumulative sound energy determination timer (10 seconds).
In step S504, if the database recording time of the audio listening through the headphones is not the same day, the current day listening cumulative acoustic energy E is cleared, and the process proceeds to step 503.
In step S505, the control module 105 determines whether the acoustic energy control incorporates environmental noise.
In step S506, when the acoustic energy control incorporates the ambient noise, the sampling module 107 obtains the ambient noise level Lw, and the operation module obtains the ambient noise level Lw according to the formula W-W0-10(Lw/10)The ambient noise sound power Wn is calculated, and the sampling module 107 may be installed on a microphone of the mobile terminal or a microphone of the headset, where the formula W is W0 × 10(Lw/10)The derivation process of (1): the formula Lw is 10log (W/W0), where W0 is the reference sound power of 10-12W-W0 10, derived(Lw/10)。
Step 507: neglecting the sound power of the environmental noise, and setting Wn to 0.
Step 508: and updating the cumulative acoustic energy E on the current day, wherein the new cumulative acoustic energy E on the current day is the cumulative acoustic energy E on the original current day plus the cumulative acoustic energy E' in the period of the timer.
Cumulative acoustic energy
Figure BDA0001202534100000091
W is the output sound power of the earphone, Wn is the sound power of the environmental noise, and eta is the sound insulation efficiency of the earphone. Earphone output sound power
Figure BDA0001202534100000092
Wf is the sound power corresponding to the fixed frequency under the current input power, f0 is the lower limit of the frequency response of the earphone, f1 is the upper limit of the frequency response of the earphone, and Wf is obtained by inquiring the sound energy distribution curved surface of the earphone. The final cumulative acoustic energy is calculated as
Figure BDA0001202534100000093
The sound energy distribution curve data of the earphones with known models, the noise isolation efficiency eta of the earphones and the safe volume threshold Vs can be obtained through measurement and calculation in a laboratory. Specifically, the method for obtaining the earphone sound energy distribution curved surface data comprises the following steps: the headset is driven at different input powers P (0-Pmax, Pmax depending on the terminal), sampled at different frequencies within the headset frequency response curve. Pass the sound level meterThe sound level Lw (in dB) is measured by the formula Lw-10 log (W/W0) where the W0 reference sound power is 10-12W-W0 10, derived(Lw/10). Thus, the acoustic power W can be calculated. The earphone is driven by different powers, and the sound energy distribution curved surface of the earphone can be obtained by sampling and gathering under different frequencies. Similarly, the safe volume threshold Vs of the earphone with the known model and the noise isolation efficiency η of the earphone can be obtained through measurement and calculation of the earphone, the human ear simulator and the sound level meter.
The real-time sound power of the earphone is obtained by inquiring a sound energy distribution curved surface of the earphone, wherein the curved surface comprises three dimensions, and the input power P < - > of the earphone can be understood as the volume output size of the terminal, namely P < - > U < - > I > is known; frequency f-a certain frequency in the frequency response curve of the earphone is known; and the acoustic power is queried by the first two known parameters. Therefore, the calculation is an integral method, so that the adjustment of the volume size does not affect the calculation, and the sound power is output in real time, namely heard.
In step S509, the control module 105 determines whether the cumulative acoustic energy E on the current day exceeds a daily acoustic energy safety level threshold Es.
In step S518, the acoustic energy accumulation timer is started again when the daily accumulated acoustic energy E does not exceed the daily acoustic energy safety level threshold Es.
In step 510, when the daily cumulative acoustic energy E exceeds the daily acoustic energy safety level threshold Es, the control module 105 pauses the audio output, prompting the user to continue hearing impaired as likely.
In step S511, the control module 105 displays a prompt message to ask the user whether to continue, where the prompt message is: "will continued listening when the cumulative acoustic energy of the daytime listening has exceeded a safe threshold, will likely cause damage to your hearing? ".
In step S511, the user clicks "cancel" stop listening.
In step S513, click "ok" to continue listening, but the maximum volume is limited to not exceed the empirical value of the earphone safe volume, and the sound energy control is not performed.
Referring to fig. 6, fig. 6 is a flow chart of a six hearing protection method according to an embodiment of the invention. The method is applied to the mobile terminal 10 shown in fig. 1-2. The method is described in detail below.
In step S601, the determination module 101 detects whether the earphone is pulled out or the audio output is stopped.
In step S603, when the determining module 101 detects that the earphone is pulled out or the audio output is stopped, the control module 105 turns off the timer to stop counting, calculates the cumulative acoustic energy E 'of the timer period, and updates the cumulative acoustic energy E on the current day to be E + E'.
In step S603, the control module 105 stores the current system volume V and the current day accumulated sound energy E in the database of the storage module 102.
The mobile terminal and the hearing protection method provided by the invention have the advantages that the safe volume threshold is obtained according to the type of the earphone, the system volume is set according to the safe volume threshold, the daily accumulated sound energy is calculated according to the sound power distribution curved surface and the sound insulation efficiency of the earphone, when the daily accumulated sound energy exceeds the daily sound energy safe level threshold, the audio output is suspended, the prompt of whether to continue playing the audio is displayed, the objectivity and the practicability of hearing protection are improved, and the effect of really protecting the hearing is achieved.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A mobile terminal, wherein the mobile terminal is capable of hearing protection, the mobile terminal comprising:
the judging module is used for acquiring the earphone model of the earphone accessed to the mobile terminal; and
the configuration module is used for acquiring a safe volume threshold Vs of the earphone according to the earphone model; setting the safe volume threshold Vs as the volume level number of a preset number N, judging whether a signal for confirming the volume level number is received or not, setting the confirmed volume level number as a system volume V when the signal for confirming the volume level number is received, and carrying out audio playing according to the system volume V; the configuration module is further used for acquiring a daily sound energy safety level threshold Es, a sound power distribution curved surface and a sound insulation efficiency eta of the earphone according to the earphone model;
and the control module is used for calculating the current day accumulated sound energy E according to the sound power distribution curved surface and the earphone sound insulation efficiency eta, judging whether the current day accumulated sound energy E exceeds a daily sound energy safety level threshold Es, pausing audio output when the current day accumulated sound energy E exceeds the daily sound energy safety level threshold Es, and displaying a prompt of whether to continue playing audio.
2. The mobile terminal of claim 1, further comprising:
a sampling module, configured to obtain an ambient noise level Lw according to the ambient noise level Lw and a formula Wn-W0-10(Lw/10)Calculating to obtain the sound power Wn of the environmental noise, wherein W0 is the reference sound power; and
the control module is further configured to calculate daily cumulative acoustic energy E according to the ambient noise acoustic power Wn, the acoustic power distribution curved surface, and the earphone sound insulation efficiency η.
3. The mobile terminal of claim 1, wherein the configuration module is further configured to set the safe volume threshold Vs to a volume level of a preset level N, use a volume level of a preset level N/2 as a temporary volume, play a test tone audio, determine whether a signal confirming the volume level is received, and set a current temporary volume to a system volume V when the signal confirming the volume level is received, wherein the preset level N/2 is rounded when a remainder is left.
4. The mobile terminal of any of claims 1-3, further comprising:
and the storage module is used for storing a safe volume threshold Vs, a daily sound energy safety level threshold Es, a sound power distribution curved surface, a sound insulation efficiency eta of the earphone, the calculated daily accumulated sound energy E and the system volume V of the earphone.
5. A hearing protection method, comprising:
acquiring the earphone model of an earphone accessed to the mobile terminal;
acquiring a safe volume threshold Vs of the earphone according to the earphone model; and
setting the safe volume threshold Vs as the volume level number of a preset number N, judging whether a signal for confirming the volume level number is received or not, setting the confirmed volume level number as a system volume V when the signal for confirming the volume level number is received, and carrying out audio playing according to the system volume V;
acquiring a daily sound energy safety level threshold Es, a sound power distribution curved surface and a sound insulation efficiency eta of the earphone according to the type of the earphone; and
and calculating the current day accumulated sound energy E according to the sound power distribution curved surface and the sound insulation efficiency eta of the earphone, judging whether the current day accumulated sound energy E exceeds a safety level threshold Es of the current day sound energy, pausing audio output when the current day accumulated sound energy E exceeds the safety level threshold Es of the current day sound energy, and displaying a prompt of whether to continue playing the audio.
6. The hearing protection method of claim 5, further comprising:
acquiring an ambient noise level Lw, and obtaining a formula Wn W0 10 according to the ambient noise level Lw(Lw/10)Calculating to obtain the sound power Wn of the environmental noise, wherein W0 is the reference sound power; and
and calculating daily accumulated sound energy E according to the environmental noise sound power Wn, the sound power distribution curved surface and the earphone sound insulation efficiency eta.
7. The hearing protection method of claim 5, further comprising:
setting the safety volume threshold Vs as a volume level of a preset level N, taking the volume level of the preset level N/2 as temporary volume, playing a test tone audio, judging whether a signal for confirming the volume level is received, and setting the current temporary volume as system volume V when the signal for confirming the volume level is received, wherein the preset level N/2 is rounded when a remainder exists.
8. The hearing protection method of any one of claims 5-7, further comprising:
and storing a safe volume threshold Vs, a daily sound energy safety level threshold Es, a sound power distribution curved surface, a sound insulation efficiency eta of the earphone, the calculated daily accumulated sound energy E and the system volume V of the earphone.
CN201710004046.4A 2017-01-04 2017-01-04 Mobile terminal and hearing protection method Active CN108270913B (en)

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CN109166271B (en) * 2018-10-30 2021-04-02 广汽丰田汽车有限公司 Automobile production workshop alarm method and device and readable storage medium
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