WO2022166836A1 - 声音剂量确定方法、装置、电子设备及存储介质 - Google Patents

声音剂量确定方法、装置、电子设备及存储介质 Download PDF

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WO2022166836A1
WO2022166836A1 PCT/CN2022/074729 CN2022074729W WO2022166836A1 WO 2022166836 A1 WO2022166836 A1 WO 2022166836A1 CN 2022074729 W CN2022074729 W CN 2022074729W WO 2022166836 A1 WO2022166836 A1 WO 2022166836A1
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unit
time
dose
sound
period
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PCT/CN2022/074729
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English (en)
French (fr)
Inventor
陈飞
郭世文
杨润
彭久高
吴海全
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深圳市冠旭电子股份有限公司
深圳市冠平电子有限公司
深圳市飞科笛系统开发有限公司
深圳市冠旭工业设计有限公司
深圳市平静科技有限公司
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Publication of WO2022166836A1 publication Critical patent/WO2022166836A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups

Definitions

  • the present application relates to the field of computer technology, and in particular, to a sound dose determination method, device, electronic device and storage medium.
  • the sound dose specifically refers to the total amount of sound received by the human ear within a period of time.
  • the sound dose specifically refers to the total amount of sound received by the human ear within a period of time.
  • it is usually necessary to calculate the sound dose corresponding to a unit duration for example, the sound dose corresponding to 1 second or 1 minute.
  • the duration corresponding to the smallest unit of sound dose calculation is usually difficult to align with the unit duration, the existing sound dose determination methods cannot accurately determine the sound dose corresponding to the unit duration.
  • Embodiments of the present application provide a method, device, electronic device, and storage medium for determining the sound dose, so as to solve the problem of how to accurately determine the sound dose in the prior art.
  • a first aspect of the embodiments of the present application provides a sound dose determination method, including:
  • the first sound dose corresponding to the target period is determined; wherein, the start moment of the target period is aligned with the first unit moment, and the end moment of the target period is aligned with the end moment of the target frequency domain frame;
  • the target frequency-domain frame is a frequency-domain frame whose output time passes through the second unit moment, and the frequency-domain frame is the minimum unit for performing sound dose calculation on the audio data;
  • the first unit moment and the second unit moment are respectively is the start time and end time of the unit period;
  • the duration of the unit period is the preset unit duration;
  • a second sound dose corresponding to the unit time period is determined.
  • the sound dose determination method is applied to an earphone comprising a real-time clock, and the real-time clock is interrupted once every said unit duration, and the first unit moment is the corresponding time when the real-time clock occurs first interruption. time, the second unit time is the time corresponding to the second interruption of the real-time clock.
  • the method further includes:
  • the method further includes:
  • the obtained dose statistics it also includes:
  • a preset reminder corresponding to the first preset level is issued.
  • the obtained dose statistics it also includes:
  • the sound pressure level of the audio output is limited according to the second preset level.
  • the obtained dose statistics it also includes:
  • the audio output is prohibited for the remaining time in the preset period;
  • the sound pressure level is limited to a preset sound pressure level threshold.
  • a second aspect of the embodiments of the present application provides a sound dose determination device, including:
  • an audio data acquisition unit to acquire audio data
  • the first sound dose determination unit determines, according to the audio data, a first sound dose corresponding to a target time period; wherein, the start time of the target time period is aligned with the first unit time, and the end time of the target time period is the same as the target frequency period.
  • the end moments of the domain frames are aligned;
  • the target frequency domain frame is the frequency domain frame whose output time passes the second unit moment, and the frequency domain frame is the minimum unit for performing sound dose calculation on the audio data;
  • the first unit The moment and the second unit moment are respectively the start moment and the end moment of the unit period;
  • the duration of the unit period is a preset unit duration;
  • the second sound dose determining unit determines a second sound dose corresponding to the unit time period according to the first unit time, the second unit time, the end time of the target time period, and the first sound dose.
  • a third aspect of the embodiments of the present application provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, when the processor executes the computer program At the time, the electronic device is made to implement the steps of the sound dose determination method.
  • a fourth aspect of the embodiments of the present application provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, enables an electronic device to achieve the sound dose as described above Determine the steps of the method.
  • a fifth aspect of the embodiments of the present application provides a computer program product that, when the computer program product runs on an electronic device, causes the electronic device to execute the sound dose determination method described in any one of the first aspects above.
  • the first sound dose corresponding to the target period is determined according to the audio data; because the time length corresponding to the frequency domain frame (that is, the minimum unit for calculating the sound dose on the audio data) usually cannot be The unit duration is aligned. Therefore, in the embodiment of the present application, the starting moment of the target period is aligned with the first unit moment, and the end moment of the target period is aligned with the end moment of the target frequency domain frame, and the target frequency domain frame is the output time.
  • the target time period is: on the premise of ensuring the integrity of the sound dose calculation, the determined time period closest to the unit time period; the unit time period is the first unit time as the starting time , taking the second unit time as the end time, and the duration as the period of unit duration. Furthermore, according to the relationship between the first unit time, the second unit time, and the end time of the target period, the sound dose within the unit time length can be accurately divided from the first sound dose, so as to accurately determine the corresponding unit time period. the second sound dose.
  • FIG. 1 is a schematic diagram of an implementation flow of a method for determining a sound dose provided by an embodiment of the present application
  • FIG. 2 is a schematic structural diagram of an earphone provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a sound dose determination device provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of an electronic device provided by an embodiment of the present application.
  • the term “if” may be contextually interpreted as “when” or “once” or “in response to determining” or “in response to detecting” .
  • the phrases “if it is determined” or “if the [described condition or event] is detected” may be interpreted, depending on the context, to mean “once it is determined” or “in response to the determination” or “once the [described condition or event] is detected. ]” or “in response to detection of the [described condition or event]”.
  • the sound dose used by the user it is often necessary to monitor the sound dose used by the user over a period of time (ie, the sound dose input to the user's ear). In practical applications, it is usually necessary to monitor the sound dose corresponding to one or more unit durations. However, since the duration corresponding to the smallest unit of sound dose calculation is usually difficult to align with the unit duration, the existing sound dose determination methods cannot accurately determine the sound dose corresponding to the unit duration.
  • the present application provides a sound dose determination method, device, electronic device and storage medium, after acquiring the output audio data, the first sound dose output in the target period is determined according to the audio data;
  • the duration corresponding to the domain frame that is, the minimum unit for calculating the sound dose of the audio data usually cannot be aligned with the unit duration.
  • the starting moment of the target period is The end time of the target frequency domain frame is aligned with the end time of the target frequency domain frame, and the target frequency domain frame is the output time after the second unit time, so that the target period is: on the premise of ensuring the integrity of the sound dose calculation, the determined and unit period The closest time period; the unit period is the period with the first unit time as the start time, the second unit time as the end time, and the duration as the unit time period. Furthermore, according to the relationship between the first unit time, the second unit time, and the end time of the target period, the sound dose within the unit time length can be accurately divided from the first sound dose, so as to accurately determine the output of the unit period the second sound dose.
  • FIG. 1 shows a schematic flowchart of a sound dose determination method provided by an embodiment of the present application.
  • the execution subject of the sound dose determination method is an electronic device, which may include earphones or other computing devices capable of acquiring audio data output by earphones.
  • the sound dose determination method of the embodiment of the present application can accurately determine the sound dose within a unit time, so as to accurately grasp the usage of the earphone by the user.
  • the sound dose determination method as shown in Figure 1 is detailed as follows:
  • the audio data is audio data output by earphones or other listening devices, and the audio data will be conveyed to the user's ears in the form of sound signals.
  • the target time period determines the first sound dose output by the target time period; wherein, the start time of the target time period is aligned with the first unit time, and the end time of the target time period is the same as that of the target frequency domain frame.
  • the end moments are aligned; the target frequency domain frame is the frequency domain frame whose output time passes through the second unit moment, and the frequency domain frame is the smallest unit for performing sound dose calculation on the audio data; the first unit moment is the same as the first unit moment.
  • the two unit times are respectively the start time and the end time of the unit time period; the duration of the unit time period is a preset unit time length.
  • the minimum unit for performing sound dose calculation on audio data is a frequency domain frame
  • the frequency domain frame may be a frame of data in the frequency domain obtained by performing fast Fourier transform (FFT) on the audio data.
  • FFT fast Fourier transform
  • an audio frame with the preset sampling number is sampled from the audio data and subjected to Fourier transform to obtain a frequency domain frame.
  • p A (t) is the sound pressure after A-weighting and diffuse field correction at time point t
  • A-weighting is a standard weighting curve used for audio measurement to reflect the response characteristics of the human ear.
  • the standard unit for this sound dose is Pascal squared hour: Pa 2 h.
  • the unit time is a preset unit time scale, for example, seconds or minutes are used as the unit time scale; the preset unit time length may be 1 second or 1 minute.
  • the duration between two adjacent unit moments is the preset unit duration. Taking a specified unit time as the start time and the next unit time adjacent to the specified unit time as the end time, a unit period corresponding to the two unit times is obtained, and the duration of the unit period is the unit duration.
  • the first unit moment in the embodiment of the present application is any unit moment in the audio data output process
  • the second unit moment is another unit moment that is closest to the first unit moment after the first unit moment ; Taking the first unit time as the start time and the second unit time as the end time, a corresponding unit time period with the unit time length as the unit time length can be obtained.
  • the audio duration of a frequency domain frame usually cannot be aligned with the unit duration. Therefore, the end time of the last frequency domain frame within a unit period usually cannot be aligned with the end time of the unit period.
  • the last frequency domain frame corresponds to The output time usually spans the current unit period and the next unit period, that is, the output time of the frequency domain frame passes the end time of the current unit period.
  • the second unit time is the end time of the current unit period. Therefore, the frequency domain frame whose output time has passed the second unit time is the last frequency domain frame in the current unit time period, called is the target frequency domain frame.
  • the target period corresponding to the first unit time can be obtained, and the target time period is: it can guarantee that the first unit time corresponds to Each frequency-domain frame within the unit period of time is completely regarded as a minimum unit, and a period of accurate and complete sound dose calculation is performed. Therefore, according to the audio data, the determined first sound dose output in the target period is a complete and accurate sound dose obtained by ensuring that each frequency domain frame can be completely calculated by the sound dose.
  • the first sound dose is the cumulative value of the sound doses of each frequency-domain frame included in the target period, and can be obtained by summing the sound doses respectively calculated for each frequency-domain frame included in the target period.
  • a time period that belongs to the target time period and does not belong to the unit time period can be determined, that is, the target time period exceeds the second unit time time period (referred to as the legacy time period).
  • the first sound dose corresponding to the target time period is subtracted from the sound dose falling in the remaining time period, and the difference obtained is the second sound dose corresponding to the current unit time period.
  • its calculation formula is as follows:
  • D ck represents the second sound dose corresponding to the unit time period
  • D k represents the first sound dose corresponding to the target time period
  • T sk represents the first unit time
  • T sk+1 represents the second unit time
  • T e represents the target time period.
  • T f represents the duration of the target period
  • "*" represents a multiplication sign.
  • the sound dose of the next unit time period needs to be included, that is, the sound dose of the above-mentioned remaining time period.
  • the calculation formula is as follows:
  • the ratio of the current unit period to the target period can be determined according to the first unit time, the second unit time, and the end time of the target; after that, multiply the ratio by the first sound dose to get The second sound dose corresponding to the unit period is obtained.
  • the sound dose of the remaining time period part of the previous target time period D k-1 can be used
  • the sound dose calculated respectively for each frequency domain frame included in the target period is obtained by accumulating and calculating accurately.
  • the calculation formula of the first sound dose is as follows:
  • D k represents the first sound dose of the current target period k (that is, the kth unit period or the target period corresponding to the kth first unit time), and n k represents the complete frequency domain included in the current target period k
  • D i is the ith frequency domain frame included in the target period according to the above sound dose expression Calculated sound dose. Indicates the sound dose corresponding to the part of the previous target period left in the current target period.
  • the sound dose determination method is applied to an earphone comprising a real-time clock, and the real-time clock is interrupted once every said unit duration, and the first unit moment is the corresponding time when the real-time clock occurs first interruption. time, the second unit time is the time corresponding to the second interruption of the real-time clock.
  • the time in the earphone is determined by the system clock of the main control chip of the earphone.
  • the above-mentioned first unit time, second unit time, the end time of the target period, the unit The duration, etc. are determined by the system clock of the main control chip of the headset.
  • the timing time and timing duration of the system clock corresponding to different earphones are different, and there is usually a deviation from the universal standard time.
  • the real-time clock is a clock that can be aligned with UTC, and the duration corresponding to two interruptions of the real-time clock is the corresponding unit duration in UTC (for example, 1 second, or 1 minute).
  • the time corresponding to the first interruption of the real-time clock is used as the first unit time, and the time corresponding to the second interruption of the real-time clock is determined as the second time.
  • unit time so that the unit duration (for example, seconds) can be accurately timed, the sound dose within the unit duration can be accurately counted, and the second sound dose corresponding to the unit time period can be obtained accurately.
  • the first interruption and the second interruption are any two adjacent interruptions.
  • Figure 2 provides a schematic structural diagram of a headset comprising a real-time clock (Real_Time Clock, RTC), the headset includes a real-time clock and a headset main control chip, and the real-time clock can interact with the headset main control chip through a communication interface.
  • an interrupt signal can also be sent to the headphone main control chip through the interruption interface, so that the headphone main control chip can determine the first unit time and the second unit time according to the interrupt signal, so as to accurately calculate the unit The corresponding second sound dose.
  • the above method also includes:
  • the universal time is the Greenwich Mean Time (Greenwich Mean Time, GMT) time, which is also referred to as Greenwich Mean Time.
  • Greenwich Mean Time Greenwich Mean Time
  • the real-time clock pair may not have been aligned with UTC when the sound dose calculation is performed; or, when the headset is not used for a long time and the system is powered off, the real-time clock will Pause the timing, when the power is turned on again, the time of the real-time clock is a time value in the past, and there is a certain time difference with the world time.
  • a network communication connection can be established through an application program or a server, etc., to acquire the current UTC, and the time of the real-time clock can be compared with the time of the real-time clock.
  • the UTC is aligned. Specifically, the current time of the real-time clock is adjusted to the currently obtained UTC, so as to realize time alignment.
  • the second sound dose corresponding to some unit time periods may have been counted, and these unit time periods are the sound dose within the unit time length determined by the unaligned real-time clock.
  • the unit duration is consistent with the length of the unit duration corresponding to the UTC, but the moments (start and end moments) corresponding to the unit period may be inconsistent with the moments corresponding to the UTC.
  • the time corresponding to the counted unit period can be corrected according to the deviation between the time scale before the real-time clock is aligned and the time scale of the UTC after the alignment, that is, the time corresponding to the unit period of time for which the sound dose has been counted can be realized. time aligned.
  • a second sound dose D corresponding to a unit period from 20:20:05 on December 12, 2020 to 20:20:06 on December 12, 2020 has been saved ck ; and after obtaining the UTC, it is determined that the time of the real-time clock is 24 hours slower than the UTC, then the previously saved time of the unit period can be corrected to: 20:20 on December 13, 2020 From minutes 05 seconds to 20:20:06 on December 13, 2020, the second sound dose D ck is actually the sound dose corresponding to the corrected unit period.
  • the real-time clock may deviate from the UTC. Therefore, by acquiring the UTC and aligning the time of the real-time clock with the UTC, the first unit moment and the second The unit time and unit period are aligned with the UTC, so that the second sound dose statistics are based on the UTC time scale, which is convenient for subsequent accurate statistics and analysis of the user's sound dose intake within a certain period of time.
  • the method further includes:
  • S104 Correspondingly record the unit time period and the second sound dose to obtain dose statistics.
  • the unit time period and the second sound dose belonging to the unit time period are recorded correspondingly to obtain dose statistical data, so as to facilitate the follow-up based on the dose statistics data to monitor the user's sound dose intake over a certain period of time.
  • the two adjacent unit moments are used as the first unit moment and the second unit moment in sequence (wherein, the second unit moment corresponding to the previous unit period is the lower unit moment
  • the second sound dose of the unit time period corresponding to every two unit time periods is continuously determined and recorded through the above-mentioned steps S101 to S104.
  • the start time and/or the end time of the unit period may be recorded in correspondence with the value of the second sound dose.
  • the record at this time is the unit period determined by the system clock of the main control chip of the earphone.
  • the record at this time is the unit period under the real-time time scale determined by the real-time clock.
  • the real-time clock has been aligned with the UTC, what is recorded at this time is the unit period under the UTC scale, that is, the currently recorded dose statistics are the units recorded with the UTC as the statistical time.
  • the second sound dose of the time period, through the dose statistics, the user's sound dose intake in each time period (eg, an actual week, a month, etc.) under the actual UTC can be accurately analyzed.
  • the obtained dose statistics it also includes:
  • the preset period may be a preset hearing protection period, the preset period corresponds to a safe dose, and the safe dose is the hearing protection period set under the requirement of protecting the user's hearing health The maximum amount of the sound dose that the user has accumulated in the ear. If the total amount of the sound dose that the user has accumulated in the hearing protection period exceeds the safe dose, the user's hearing health will be damaged.
  • the preset period may be one week, and for an adult, the safe dose corresponding to the preset period may be 1.6Pa 2 h, and the safe dose is specifically 80dBSPL as the reference sound pressure level, 5 days a week, every day.
  • the safe dose corresponding to the preset period can be 0.51Pa 2 h.
  • the safe dose is specifically the sound dose calculated by taking 75dBSPL as the reference sound pressure level and using the earphones for 40 hours a week.
  • the preset period can also be one day, and 8 hours a day is used as the earphone usage time.
  • the safe dose corresponding to the preset period is 0.32Pa 2 h, and for children, the safe dose corresponding to the preset period is 0.102Pa 2 h.
  • the amount of the accumulated second sound dose may be graded according to the safety dose.
  • the safe dose is equally divided into 10 levels from 1 to 10, that is, level 1 is used as the initial level, and when one tenth of the safe dose is reached, a corresponding increase is made.
  • level 10 is reached
  • the safe dose in the preset period has been used; and, in addition to the 10 levels corresponding to the safe dose, additional levels beyond the safe dose can be set. If the sound dose amount is one tenth of the dose, the current level is determined to be level 11, and if the sound dose amount of one tenth of the safe dose is continued to increase, the current level is determined to be level 12.
  • the first preset level in this embodiment of the present application is one or more levels specified from the above-mentioned divided levels, for example, may include several levels of 6 to 10 levels.
  • a preset reminder is preset correspondingly, and the preset reminder can be a voice reminder or a text message reminder.
  • the content of the preset reminder corresponding to the first preset level 6 may be: the sound dose usage limit in this period has reached level 6, please adjust the volume to below the volume scale 6.
  • the user's sound dose intake in each unit period can be determined.
  • the accumulation of the second sound doses that have been output in each unit period in the preset period can be started, and when it is detected that the total amount of the accumulated second sound doses reaches the preset level, the preset sound dose is issued.
  • a preset reminder corresponding to the level is set, so that the user can be reminded in a timely and effective manner, so that the user can actively adjust the current earphone usage according to the preset reminder to achieve the user's hearing protection.
  • the obtained dose statistics it also includes:
  • the sound pressure level of the audio output is limited according to the second preset level.
  • the embodiment of the present application can also automatically limit the preset level when it is detected that the total amount of the second sound dose that has been output in the preset period reaches the preset level.
  • the sound pressure level of the lower audio output can effectively regulate the use of the user's headphones, thereby effectively protecting the user's hearing health.
  • the second preset level is also one or a level specified from the above-mentioned divided levels, and the second preset level may be the same as or different from the above-mentioned first preset level.
  • the second preset level may be specifically a level that exceeds a safe dose, such as level 11 and level 12 above.
  • a sound pressure level limit of the audio output is correspondingly set, and the sound pressure level of the audio output is less than or equal to the sound pressure level limit when the earphone is at the second preset level through automatic adjustment.
  • the sound pressure level limit corresponding to the above-mentioned level 11 may be 50 dBSPL
  • the sound pressure level limit corresponding to the above-mentioned level 12 may be 45 dBSPL.
  • the obtained dose statistics it also includes:
  • the audio output is prohibited for the remaining time in the preset period;
  • the sound pressure level is limited to a preset sound pressure level threshold.
  • the parent when the user of the earphone is a student, in order to limit the use of the student, the parent can set it so that when the total amount of the second sound dose that has been output in the preset period is greater than the above-mentioned preset safe dose, Audio output is disabled for the remainder of the preset period, thereby forcing the student to stop using the headset for the preset period.
  • the sound pressure level of the audio output may be limited within the preset sound pressure level threshold within the remaining time period within the preset period, Thereby effectively protecting the user's hearing.
  • the sound pressure level threshold may be a threshold set by the earphone user himself or a guardian (parent) of the earphone user.
  • the audio output when the total amount of the second sound dose is greater than the preset safe dose, the audio output is prohibited or the sound pressure level of the audio output is limited within the preset sound pressure level threshold, thereby effectively regulating the user's
  • the use of headphones reduces the user's hearing damage and protects the user's hearing health.
  • the first sound dose corresponding to the target period is determined according to the audio data; since the frequency domain frame (that is, the minimum unit for calculating the sound dose on the audio data) corresponds to the duration usually It cannot be aligned with the unit duration. Therefore, in the embodiment of the present application, the start moment of the target period is aligned with the first unit moment, and the end moment of the target period is aligned with the end moment of the target frequency domain frame.
  • the target frequency domain frame is The output time passes through the second unit time, so that the target period is: under the premise of ensuring the integrity of the sound dose calculation, the determined time period closest to the unit period; the unit period is the first unit time.
  • the start time, the second unit time is the end time, and the duration is the period of unit time. Furthermore, according to the relationship between the first unit time, the second unit time, and the end time of the target period, the sound dose within the unit time length can be accurately divided from the first sound dose, so as to accurately determine the corresponding unit time period. the second sound dose.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • FIG. 3 shows a schematic structural diagram of a sound dose determination device provided by an embodiment of the present application. For the convenience of description, only the parts related to the embodiment of the present application are shown:
  • the sound dose determination device includes: an audio data acquisition unit 31 , a first sound dose determination unit 32 , and a second sound dose determination unit 33 . in:
  • the audio data acquisition unit 31 acquires audio data.
  • the first sound dose determination unit 32 determines, according to the audio data, a first sound dose corresponding to a target period; wherein, the start time of the target period is aligned with the first unit time, and the end time of the target period is the same as the target period.
  • the end moments of the frequency-domain frames are aligned;
  • the target frequency-domain frame is a frequency-domain frame whose output time passes the second unit moment, and the frequency-domain frame is the minimum unit for performing sound dose calculation on the audio data;
  • the first The unit time and the second unit time are respectively the start time and the end time of the unit period;
  • the duration of the unit period is a preset unit time.
  • the second sound dose determining unit 33 determines a second sound dose corresponding to the unit time period according to the first unit time, the second unit time, the end time of the target time period, and the first sound dose.
  • the sound dose determination device is applied to an earphone that includes a real-time clock, the real-time clock is interrupted every unit duration, and the first unit moment is the corresponding time when the real-time clock occurs first interruption. time, the second unit time is the time corresponding to the second interruption of the real-time clock.
  • the sound dose determination device further includes:
  • the time alignment unit is used for acquiring the current UTC; aligning the time of the real-time clock with the UTC.
  • the sound dose determination device further includes:
  • a recording unit configured to record the unit time period corresponding to the second sound dose to obtain dose statistical data.
  • the sound dose determination device further includes:
  • a reminder unit configured to issue a preset corresponding to the first preset level if it is detected that the total amount of the second sound dose that has been output in the preset period reaches a first preset level according to the dose statistical data remind.
  • the sound dose determination device further includes:
  • the first limiting unit is configured to limit the sound output of the audio according to the second preset level if it is detected that the total amount of the second sound dose that has been output in the preset period reaches a second preset level according to the dose statistical data. pressure level.
  • the sound dose determination device further includes:
  • the second limiting unit is configured to prohibit audio output during the remaining time in the preset period if it is detected that the total amount of the second sound dose that has been output within the preset period is greater than the preset safe dose according to the dose statistical data ; or, limit the sound pressure level of the audio output to a preset sound pressure level threshold.
  • FIG. 4 is a schematic diagram of an electronic device provided by an embodiment of the present application.
  • the electronic device 4 of this embodiment includes a processor 40 , a memory 41 , and a computer program 42 stored in the memory 41 and executable on the processor 40 , such as a sound dose determination program.
  • the processor 40 executes the computer program 42
  • the steps in each of the above embodiments of the sound dose determination method are implemented, for example, steps S101 to S103 shown in FIG. 1 .
  • the processor 40 executes the computer program 42
  • the functions of the modules/units in the above device embodiments are implemented, for example, the functions of the audio data acquisition unit 31 to the second sound dose determination unit 33 shown in FIG. 3 .
  • the computer program 42 may be divided into one or more modules/units, and the one or more modules/units are stored in the memory 41 and executed by the processor 40 to complete the this application.
  • the one or more modules/units may be a series of computer program instruction segments capable of performing specific functions, and the instruction segments are used to describe the execution process of the computer program 42 in the electronic device 4 .
  • the electronic device 4 may be a computing device such as a headset, a desktop computer, a notebook, a palmtop computer, and a cloud server.
  • the electronic device may include, but is not limited to, the processor 40 and the memory 41 .
  • FIG. 4 is only an example of the electronic device 4, and does not constitute a limitation to the electronic device 4, and may include more or less components than the one shown, or combine some components, or different components
  • the electronic device may further include an input and output device, a network access device, a bus, and the like.
  • the so-called processor 40 may be a central processing unit (Central Processing Unit, CPU), or other general-purpose processors, digital signal processors (Digital Signal Processors, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), Field-Programmable Gate Array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the memory 41 may be an internal storage unit of the electronic device 4 , such as a hard disk or a memory of the electronic device 4 .
  • the memory 41 can also be an external storage device of the electronic device 4, such as a plug-in hard disk equipped on the electronic device 4, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) Card, Flash Card, etc.
  • the memory 41 may also include both an internal storage unit of the electronic device 4 and an external storage device.
  • the memory 41 is used to store the computer program and other programs and data required by the electronic device.
  • the memory 41 can also be used to temporarily store data that has been output or will be output.
  • the disclosed apparatus/electronic device and method may be implemented in other manners.
  • the above-described embodiments of the apparatus/electronic device are only illustrative.
  • the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units. Or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.
  • the integrated modules/units if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
  • the present application can implement all or part of the processes in the methods of the above embodiments, and can also be completed by instructing relevant hardware through a computer program, and the computer program can be stored in a computer-readable storage medium, and the computer When the program is executed by the processor, the steps of the foregoing method embodiments can be implemented.
  • the computer program includes computer program code
  • the computer program code may be in the form of source code, object code, executable file or some intermediate form, and the like.
  • the computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, U disk, removable hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM, Read-Only Memory) , Random Access Memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium, etc. It should be noted that the content contained in the computer-readable media may be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction, for example, in some jurisdictions, according to legislation and patent practice, the computer-readable media Electric carrier signals and telecommunication signals are not included.

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Abstract

一种声音剂量确定方法，包括：获取音频数据(S101)；根据该音频数据，确定目标时段对应的第一声音剂量；目标时段的起始时刻与第一单位时刻对齐，目标时段的结束时刻与目标频域帧的结束时刻对齐；目标频域帧为输出时间经过第二单位时刻的频域帧，频域帧为对音频数据进行声音剂量计算的最小单位；第一单位时刻与第二单位时刻分别为单位时段的起始时刻及结束时刻；单位时段的时长为预设的单位时长(S102)；根据第一单位时刻、第二单位时刻、目标时段的结束时刻以及第一声音剂量，确定单位时段对应的第二声音剂量(S103)。能够应用于智能耳机。还公开了一种声音剂量确定装置、一种电子设备及一种存储介质。

Description

声音剂量确定方法、装置、电子设备及存储介质
本申请要求于2021年02月02日在中国专利局提交的、申请号为202110141614.1、发明名称为“声音剂量确定方法、装置、电子设备及存储介质”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及计算机技术领域，尤其涉及一种声音剂量确定方法、装置、电子设备及存储介质。
背景技术
目前，在耳机的使用过程中，常常需要监测使用者在一段时间内使用的声音剂量(dose)，该声音剂量具体指的是人耳在一段时间内收到的声音总量。在实际应用中，通常需要计算的为单位时长对应的声音剂量(例如1秒或者1分钟对应的声音剂量)。然而，由于声音剂量计算的最小单位对应的时长通常难以与单位时长对齐，因此，现有的声音剂量确定方法无法准确地确定单位时长对应的声音剂量。
技术问题
本申请实施例提供了听音剂量确定方法、装置、电子设备及存储介质，以解决现有技术中如何准确地确定声音剂量的问题。
技术解决方案
本申请实施例的第一方面提供了一种声音剂量确定方法，包括：
获取音频数据；
根据所述音频数据，确定目标时段对应的第一声音剂量；其中，所述目标时段的起始时刻与第一单位时刻对齐，所述目标时段的结束时刻与目标频域帧的结束时刻对齐；所述目标频域帧为输出时间经过第二单位时刻的频域帧，所述频域帧为对所述音频数据进行声音剂量计算的最小单位；所述第一单位时刻与第二单位时刻分别为单位时段的起始时刻及结束时刻；所述单位时段的时长为预设的单位时长；
根据所述第一单位时刻、所述第二单位时刻、所述目标时段的结束时刻以及所述第一声音剂量，确定所述单位时段对应的第二声音剂量。
可选地，所述声音剂量确定方法应用于包含实时时钟的耳机，所述实时时钟每隔所述单位时长发生一次中断，所述第一单位时刻为所述实时时钟发生第一中断时对应的时刻，所述第二单位时刻为所述实时时钟发生第二中断时对应的时刻。
可选地，所述方法还包括：
获取当前的世界标准时间；
将所述实时时钟的时间与所述世界标准时间对齐。
可选地，在所述确定所述单位时段对应的第二声音剂量之后，还包括：
将所述单位时段与所述第二声音剂量对应记录，得到剂量统计数据。
可选地，在所述得到剂量统计数据后，还包括：
若根据所述剂量统计数据，检测到预设周期内已输出的第二声音剂量的总额到达第一预设等级，则发出与所述第一预设等级对应设置的预设提醒。
可选地，在所述得到剂量统计数据后，还包括：
若根据所述剂量统计数据，检测到预设周期内已输出的第二声音剂量总额到达第二预设等级，则根据所述第二预设等级限制音频输出的声压级。
可选地，在所述得到剂量统计数据后，还包括：
若根据所述剂量统计数据，检测到预设周期内已输出的第二声音剂量总额大于预设的安全剂量，则在所述预设周期内的剩余时间禁止音频输出；或者，将音频输出的声压级限制在预设的声压级阈值内。
本申请实施例的第二方面提供了一种声音剂量确定装置，包括：
音频数据获取单元，获取音频数据；
第一声音剂量确定单元，根据所述音频数据，确定目标时段对应的第一声音剂量；其中，所述目标时段的起始时刻与第一单位时刻对齐，所述目标时段的结束时刻与目标频域帧的结束时刻对齐；所述目标频域帧为输出时间经过第二单位时刻的频域帧，所述频域帧为对所述音频数据进行声音剂量计算的最小单位；所述第一单位时刻与第二单位时刻分别为单位时段的起始时刻及结束时刻；所述单位时段的时长为预设的单位时长；
第二声音剂量确定单元，根据所述第一单位时刻、所述第二单位时刻、所述目标时段的结束时刻以及所述第一声音剂量，确定所述单位时段对应的第二声音剂量。
本申请实施例的第三方面提供了一种电子设备，包括存储器、处理器以及存储在所述存储器中并可在所述处理器上运行的计算机程序，当所述处理器执行所述计算机程序时，使得电子设备实现如所述声音剂量确定方法的步骤。
本申请实施例的第四方面提供了一种计算机可读存储介质，所述计算机可读存储介质存储有计算机程序，当所述计算机程序被处理器执行时，使得电子设备实现如所述声音剂量确定方法的步骤。
本申请实施例的第五方面提供了一种计算机程序产品，当计算机程序产品在电子设备上运行时，使得电子设备执行上述第一方面中任一项所述的声音剂量确定方法。
有益效果
本申请实施例中，在获取到音频数据后，根据该音频数据确定目标时段对应的第一声音剂量；由于频域帧(即对音频数据进行声音剂量计算的最小单位)对应的时长通常无法与单位时长对齐，因此，本申请实施例中，该目标时段的起始时刻与第一单位时刻对齐，而目标时段的结束时刻与目标频域帧的结束时刻对齐，该目标频域帧为输出时间经过第二单位时刻，使得该目标时段为：在保证声音剂量计算的完整性的前提下，确定的与单位时段最接近的一个时间段；该单位时段即为以第一单位时刻为起始时刻，以第二单位时刻为结束时刻，时长为单位时长的时段。进而，根据该第一单位时刻、第二单位时刻、目标时段的结束时刻之间的关系，能够准确地从第一声音剂量中划分出单位时长内的声音剂量，从而准确地确定该单位时段对应的第二声音剂量。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍。
图1是本申请实施例提供的一种声音剂量确定方法的实现流程示意图；
图2是本申请实施例提供的耳机的结构示意图；
图3是本申请实施例提供的一种声音剂量确定装置的示意图；
图4是本申请实施例提供的电子设备的示意图。
本发明的实施方式
以下描述中，为了说明而不是为了限定，提出了诸如特定系统结构、技术之类的具体细节，以便透彻理解本申请实施例。然而，本领域的技术人员应当清楚，在没有这些具体细节的其它实施例中也可以实现本申请。在其它情况中，省略对众所周知的系统、装置、电路以及方法的详细说明，以免不必要的细节妨碍本申请的描述。
为了说明本申请所述的技术方案，下面通过具体实施例来进行说明。
应当理解，当在本说明书和所附权利要求书中使用时，术语“包括”指示所描述特征、整体、步骤、操作、元素和/或组件的存在，但并不排除一个或多个其它特征、整体、步骤、操作、元素、组件和/或其集合的存在或添加。
还应当理解，在此本申请说明书中所使用的术语仅仅是出于描述特定实施例的目的而并不意在限制本申请。如在本申请说明书和所附权利要求书中所使用的那样，除非上下文清楚地指明其它情况，否则单数形式的“一”、“一个”及“该”意在包括复数形式。
还应当进一步理解，在本申请说明书和所附权利要求书中使用的术语“和/或”是指相关联列出的项中的一个或多个的任何组合以及所有可能组合，并且包括这些组合。
如在本说明书和所附权利要求书中所使用的那样，术语“如果”可以依据上下文被解释为“当...时”或“一旦”或“响应于确定”或“响应于检测到”。类似地，短语“如果确定”或“如果检测到[所描述条件或事件]”可以依据上下文被解释为意指“一旦确定”或“响应于确定”或“一旦检测到[所描述条件或事件]”或“响应于检测到[所描述条件或事件]”。
另外，在本申请的描述中，术语“第一”、“第二”等仅用于区分描述，而不能理解为指示或暗示相对重要性。
目前，在耳机的使用过程中，常常需要监测使用者在一段时间内使用的声音剂量(即输入用户耳朵的声音剂量)。在实际应用中，通常需要监测的为一个或者多个单位时长对应的声音剂量。然而，由于声音剂量计算的最小单位对应的时长通常难以与单位时长对齐，因此，现有的声音剂量确定方法无法准确地确定单位时长对应的声音剂量。为了解决该技术问题，本申请提供了一种声音剂量确定方法、装置、电子设备及存储介质，在获取到输出的音频数据后，根据该音频数据确定目标时段输出的第一声音剂量；由于频域帧(即对音频数据进行声音剂量计算的最小单位)对应的时长通常无法与单位时长对齐，因此，本申请实施例中，该目标时段的起始时刻与第一单位时刻对齐，而目标时段的结束时刻与目标频域帧的结束时刻对齐，该目标频域帧为输出时间经过第二单位时刻，使得该目标时段为：在保证声音剂量计算的完整性的前提下，确定的与单位时段最接近的一个时间段；该单位时段即为以第一单位时刻为起始时刻，以第二单位时刻为结束时刻，时长为单位时长的时段。进而，根据该第一单位时刻、第二单位时刻、目标时段的结束时刻之间的关系，能够准确地从第一声音剂量中划分出单位时长内的声音剂量，从而准确地确定该单位时段输出的第二声音剂量。
实施例一：
图1示出了本申请实施例提供的一种声音剂量确定方法的流程示意图，该声音剂量确定方法的执行主体为电子设备，可以包括耳机或者其它能够获取耳机输出的音频数据的计算设备，通过本申请实施例的声音剂量确定方法，能够准确地确定单位时长内的声音剂量，以准确地把握用户对耳机的使用情况。如图1所述的声音剂量确定方法详述如下：
在S101中，获取音频数据。
本申请实施例中，音频数据为耳机或者其它听音设备输出的音频数据，该音频数据将以声音信号的形式传达至用户的耳朵。该音频数据的最小单位为音乐帧，该音乐帧大小＝声道数*位宽字节数，其中，若当前的音频播放设备为双声道，且位宽为4字节，则其对应的一帧音乐帧的大小为：2*4＝8字节；若为单声道，且位宽为2字节，则其对应的一帧音 乐帧的大小为：1*2＝2字节。
在S102中，根据所述音频数据，确定目标时段输出的第一声音剂量；其中，所述目标时段的起始时刻与第一单位时刻对齐，所述目标时段的结束时刻与目标频域帧的结束时刻对齐；所述目标频域帧为输出时间经过第二单位时刻的频域帧，所述频域帧为对所述音频数据进行声音剂量计算的最小单位；所述第一单位时刻与第二单位时刻分别为单位时段的起始时刻及结束时刻；所述单位时段的时长为预设的单位时长。
本申请实施例中，对音频数据进行声音剂量计算的最小单位为频域帧，该频域帧可以为对音频数据进行快速傅立叶变换(fast Fourier transform，FFT)得到的频域上的一帧数据。具体地，基于预设采样频率f和预设采样数目n，从音频数据中采样该预设采样数目的音频帧进行傅里叶变换，即可得到一个频域帧。其中，一帧频域帧对应的音频时长
Figure PCTCN2022074729-appb-000001
示例性地，若预设采样频率f＝16000HZ，预设采样数目m＝512，则，一帧频域帧对应的音频时长
Figure PCTCN2022074729-appb-000002
可见，该频域帧对应的音频时长通常并不能与1秒、1分钟等常用的单位时长对齐，即单位时长内通常不能包含整数个频域帧。具体地，对于一个起始时刻为t 1，结束时刻为t 2的频域帧，其对应计算出的声音剂量D可以定义为在时间t d＝t 2-t 1上积分得到的平方A加权声压，表达式如下：
Figure PCTCN2022074729-appb-000003
其中，p A(t)为在时间点t进行A加权和漫射场校正后的声压，A加权是一种用于音频测量的标准权重曲线，用于反映人耳的响应特性。该声音剂量的标准单位为帕斯卡平方小时：Pa 2h。
本申请实施例中，单位时刻为预设的单位时间刻度，例如以秒或者分钟作为单位时间刻度；预设的单位时长可以为1秒或者1分钟。相邻的两个单位时刻之间的时长即为该预设的单位时长。以一个指定的单位时刻作为起始时刻，以与该指定的单位时刻相邻的下一个单位时刻作为结束时刻，即得到这两个单位时刻对应的一个单位时段，该单位时段的时长即为单位时长。本申请实施例中的第一单位时刻为音频数据输出过程中的任意一个单位时刻，而该第二单位时刻为在该第一单位时刻之后，与该第一单位时刻最接近的另一个单位时刻；以该第一单位时刻为起始时刻，以该第二单位时刻作为结束时刻，即可得到对应的一个时长为单位时长的单位时段。
如上所述，频域帧的音频时长通常不能与单位时长对齐，因此，单位时段内的最后一 个频域帧的结束时刻通常无法与该单位时段的结束时刻对齐，该最后一个频域帧对应的输出时间通常跨越了当前的单位时段以及下一单位时段，即，该频域帧的输出时间经过了当前的单位时段的结束时刻。在本申请实施例中，第二单位时刻为当前的单位时段的结束时刻，因此，输出时间经过了第二单位时刻的频域帧即为该当前的单位时段中的最后一个频域帧，称为目标频域帧。以该第一单位时刻作为起始时刻，以该目标频域帧的结束时刻作为结束时刻，即可得到第一单位时刻对应的目标时段，该目标时段即为：能够保证该第一单位时刻对应的单位时段内的各个频域帧被完整地作为一个最小单位，进行准确完整的声音剂量计算的时段。因此，根据音频数据，确定出的目标时段输出的第一声音剂量，为保证各个频域帧能够被完整地进行声音剂量计算而得到的完整、准确的声音剂量。该第一声音剂量为目标时段内包含的各个频域帧的声音剂量的累计值，可以根据该目标时段包含的各个频域帧分别计算得到的各个声音剂量，进行求和计算而得到。
在S103中，根据所述第一单位时刻、所述第二单位时刻、所述目标时段的结束时刻以及所述第一声音剂量，确定所述单位时段输出的第二声音剂量。
在一个实施例中，根据上述的第一单位时刻、第二单位时刻及目标时段的结束时刻，可以确定属于目标时段且不属于单位时段的一个时间段，即目标时段中超出该第二单位时刻的时间段(简称为遗留时间段)。将目标时段对应的第一声音剂量减去落在该遗留时间段部分的声音剂量，得到的差值即为当前的单位时段对应的第二声音剂量。具体地，其计算公式如下：
Figure PCTCN2022074729-appb-000004
T f＝T e-T sk
其中，D ck表示单位时段对应的第二声音剂量；D k表示目标时段对应的第一声音剂量，T sk表示第一单位时刻，T sk+1表示第二单位时刻，T e表示目标时段的结束时刻，T f表示目标时段的时长，“*”表示乘号。
而第一声音剂量中，需要计入下一单位时段的声音剂量，即上述遗留时间段部分的声音剂量
Figure PCTCN2022074729-appb-000005
的计算公式如下：
Figure PCTCN2022074729-appb-000006
在另一个实施例中，根据上述的第一单位时刻、第二单位时刻及目标的结束时刻，可 以确定当前单位时段占目标时段的比例；之后，将该比例乘以第一声音剂量，即可得到该单位时段对应的第二声音剂量。
具体地，对于每个目标时段k对应的第一声音剂量D k，可以根据上一个目标时段D k-1遗留时间段部分的声音剂量
Figure PCTCN2022074729-appb-000007
以及该目标时段包含的各个频域帧分别计算得到的声音剂量，进行累加计算而准确得到。具体地，该第一声音剂量的计算公式如下：
Figure PCTCN2022074729-appb-000008
其中，D k表示当前的目标时段k(即，第k个单位时段或者第k第一单位时刻对应的目标时段)的第一声音剂量，n k表示当前的目标时段k包含的完整的频域帧的个数，D i为该目标时段包含的第i个频域帧根据上述的声音剂量表达式
Figure PCTCN2022074729-appb-000009
计算出的声音剂量。
Figure PCTCN2022074729-appb-000010
表示上一个目标时段遗留在本目标时段的部分对应的声音剂量。
具体地，当k＝1时，即，当前的目标时段为声音剂量开始计算的第一个目标时段时，其不存在上一个目标时段，此时
Figure PCTCN2022074729-appb-000011
而当k>1时，则类推上述式子
Figure PCTCN2022074729-appb-000012
此时的
Figure PCTCN2022074729-appb-000013
即上一个目标时段对应的第一声音剂量D k-1减去已计入上一单位时段的第二声音剂量D ck-1，即得到上一目标时段遗留在本目标时段的部分对应的声音剂量
Figure PCTCN2022074729-appb-000014
可选地，所述声音剂量确定方法应用于包含实时时钟的耳机，所述实时时钟每隔所述单位时长发生一次中断，所述第一单位时刻为所述实时时钟发生第一中断时对应的时刻，所述第二单位时刻为所述实时时钟发生第二中断时对应的时刻。
通常，耳机中的时间是通过耳机主控芯片的系统时钟来确定的，对耳机输出的音频数据进行声音剂量统计时，上述的第一单位时刻、第二单位时刻、目标时段的结束时刻、单位时长等均由耳机主控芯片的系统时钟来确定。然而，不同的耳机对应的系统时钟的计时时刻、计时时长各异，通常均与世界标准时间存在偏差。而实时时钟为能够与世界标准时间对齐的时钟，实时时钟发生两次中断对应的时长即为世界标准时间下对应的单位时长(例如1秒，或者1分钟)。因此，本申请实施例中，具体通过包含实时时钟的耳机，以该实时时钟发生第一中断时对应的时刻作为第一单位时刻，以该实时时钟发生第二中断时对应的时刻确定为第二单位时刻，从而能够精确地进行单位时长(例如秒)计时，准确地统计 单位时长内的声音剂量，进而准确地得到单位时段对应的第二声音剂量。其中，该第一中断、第二中断为任意相邻的两次中断。示例性地，图2提供了一种包含实时时钟(Real_Time Clock，RTC)的耳机的结构示意图，该耳机包含实时时钟和耳机主控芯片，该实时时钟可以与耳机主控芯片通过通信接口进行相互间的通信，并且，该实时中还能够通过中断接口向耳机主控芯片发送中断信号，以使该耳机主控芯片根据中断信号，确定第一单位时刻和第二单位时刻，以准确地计算单位对应的第二声音剂量。
可选地，上述的方法还包括：
获取当前的世界标准时间；
将所述实时时钟的时间与所述世界标准时间对齐。
本申请实施例中，世界标准时间即为格林威治时间(GreenwichMeanTime，GMT)时间，也称为格林尼治时间。虽然实时时钟的时间能够与该世界标准时间对齐，但可能在进行声音剂量计算时尚未将该实时时钟对与世界标准时间对齐；或者，当耳机长时间不使用，系统断电时，实时时钟会暂停计时，当再次上电时，该实时时钟的时间为过去的一个时间值，与世界时间存在一定的时间差。因此，本申请实施例中，可以在获取输出的音频数据之前，或者每隔预设时间间隔，通过应用程序或者服务器等建立网络通信连接，获取当前的世界标准时间，并将实时时钟的时间与该世界标准时间对齐。具体地，将实时时钟的当前时间调整为当前获取到的该世界标准时间，从而实现时间对齐。在一个实施例中，在对齐世界标准时间之前，可能已统计了一些单位时段对应的第二声音剂量，这些单位时段是由未对齐的实时时钟进行计时而确定的单位时长内的声音剂量，该单位时长与世界标准时间对应的单位时长的长度一致，只是该单位时段对应的时刻(起始时刻和结束时刻)可能与世界标准时间对应的时刻不一致。此时，可以根据该实时时钟对齐之前的时间刻度与对齐后的世界标准时间的时间刻度的偏差，对已统计的单位时段对应的时间进行修正，即能够实现已统计了声音剂量的单位时段的时间对齐。例如，在实时时钟未更新前，已保存了一个在2020年12月12日20点20分05秒至2020年12月12日20点20分06秒的一个单位时段对应的第二声音剂量D ck；而在获取世界标准时间后，确定实时时钟的时间比该世界标准时间慢了24小时，则此时可以将之前保存的该单位时段的时间修正为：2020年12月13日20点20分05秒至2020年12月13日20点20分06秒，第二声音剂量D ck实际为该修正后的单位时段对应的声音剂量。
本申请实施例中，进一步考虑到实时时钟可能与世界标准时间存在偏差，因此通过获取世界标准时间，并将该实时时钟的时间与该世界标准时间对齐，使得之后的第一单位时刻、第二单位时刻及单位时段均为与世界标准时间对齐，使得第二声音剂量的统计以世界 标准时间为时间标度，便于后续准确地统计和分析用户在一定时间内的声音剂量摄入情况。
可选地，在所述确定所述单位时段对应的第二声音剂量之后，还包括：
S104：将所述单位时段与所述第二声音剂量对应记录，得到剂量统计数据。
本申请实施例中，在每次确定一个单位时段对应的第二声音剂量之后，将该单位时段与属于该单位时段的第二声音剂量对应记录，得到剂量统计数据，以便于后续根据该剂量统计数据，监测一定时间段内用户的声音剂量摄入情况。具体地，耳机在每次输出音频时，均按序依次地以相邻的两个单位时刻作为第一单位时刻和第二单位时刻(其中，上一个单位时段对应的第二单位时刻即为下一个单位时段对应的第一单位时刻)，通过上述的步骤S101至步骤S104持续地确定并记录每两个单位时刻对应的单位时段的第二声音剂量。
具体地，可以将该单位时段的起始时刻和/或结束时刻(即第一单位时刻和/或第二单位时刻)与该第二声音剂量的值对应记录。具体地，若当前的耳机不包含实时时钟，则此时记录的为耳机主控芯片的系统时钟确定的单位时段。若当前的耳机包含实时时钟，则此时记录的为实时时钟确定的实时时间标度下的单位时段。进一步地，若该实时时钟已与世界标准时间对齐，则此时记录的为世界标准时间标度下的单位时段，即，当前记录的剂量统计数据为以世界标准时间为统计时间记录的各个单位时段的第二声音剂量，通过该剂量统计数据，可以准确地分析用户在实际的世界标准时间下的各个时间周期(例如实际的一周、一个月等)的声音剂量摄入情况。
可选地，在所述得到剂量统计数据后，还包括：
若根据所述剂量统计数据，检测到预设周期内已输出的第二声音剂量的总额到达第一预设等级，则发出与所述预设等级对应设置的预设提醒。
本申请实施例中，预设周期可以为预设的一个听力保护周期，该预设周期对应一个安全剂量，该安全剂量即为在保护用户的听力健康的要求下，设定的该听力保护周期内用户累计摄入耳朵的声音剂量的最大额度，若用户在该听力保护周期内累计摄入的声音剂量的总额超过该安全剂量，则将损害用户的听力健康。示例性地，该预设周期可以为一周，对于成人，该预设周期对应的安全剂量可以为1.6Pa 2h，该安全剂量具体是以80dBSPL作为参考声压级，以每周5天，每天8小时作为一周的耳机使用时长(共40小时)进行计算得到的声音剂量；其中，dBSPL为声压级的单位。对于儿童，该预设周期对应的安全剂量可以为0.51Pa 2h，该安全剂量具体是以75dBSPL作为参考声压级，以一周40小时的耳机使用时长进行计算得到的声音剂量。或者，该预设周期也可以为一天，以一天8小时作为耳机使用时长，则对于成人，该预设周期对应的安全剂量为0.32Pa 2h，而对于儿童，该预设周期对应的安全剂量为0.102Pa 2h。本申请实施例中可以根据安全剂量对累计的第二声音剂 量的额度进行等级划分。例如，将该安全剂量等额划分为1～10这10个等级，即，以等级1为初始等级，并在每到达安全剂量的十分之一的额度，对应上升一个级别，当到达等级10时则预设周期内的安全剂量已使用完毕；并且，在该安全剂量对应的10个等级外，还可以额外设定超越了安全剂量的等级，例如在安全剂量的基础上，若再增加了安全剂量的十分之一的声音剂量额度，则确定当前的等级为等级11，若再继续增加安全剂量的十分之一的声音剂量额度，则确定当前的等级为等级12。本申请实施例中的第一预设等级为从上述划分的等级中指定的一个或者多个等级，例如，可以包括6～10级这几个等级。对于每一个第一预设等级，其对应预设了一个预设提醒，该预设提醒可以为语音提醒也可以为文字消息提醒。示例性地，第一预设等级6对应的预设提醒的内容可以为：本周期内的声音剂量使用额度已到达6级，请将音量调整至音量刻度6以下。
根据上述的剂量统计数据，可以确定用户在各个单位时段的声音剂量摄入情况。可以在预设周期的初始时刻，开始对该预设周期内各个单位时段已输出的第二声音剂量进行累计，当检测到该累计的第二声音剂量的总额到达预设等级，则发出该预设等级对应的预设提醒，从而能够及时有效提醒用户，使得用户能够根据预设提醒，通过主动调整当前的耳机使用，实现用户的听力保护。
可选地，在所述得到剂量统计数据后，还包括：
若根据所述剂量统计数据，检测到预设周期内已输出的第二声音剂量总额到达第二预设等级，则根据所述第二预设等级限制音频输出的声压级。
除了上述的用户根据预设提醒主动调整耳机的方法外，本申请实施例还可以在检测到预设周期内已输出的第二声音剂量总额到达预设等级时，通过自动地限制该预设等级下音频输出的声压级，有效地规范用户的耳机使用，从而有效地保护用户的听力健康。具体地，第二预设等级同样为从上述划分的等级中指定的一个或者等级，该第二预设等级可以与上述的第一预设等级相同也可以不同。在一些实施例中，该第二预设等级可以具体为超过安全剂量的等级，例如上述的等级11、等级12。对于每个第二预设等级，对应设置了一个音频输出的声压级限额，通过自动调节使得耳机在处于第二预设等级时，音频输出的声压级小于或者等于该声压级限额。示例性地，上述的等级11对应的声压级限额可以为50dBSPL，上述的等级12对应的声压级限额可以为45dBSPL。
可选地，在所述得到剂量统计数据后，还包括：
若根据所述剂量统计数据，检测到预设周期内已输出的第二声音剂量总额大于预设的安全剂量，则在所述预设周期内的剩余时间禁止音频输出；或者，将音频输出的声压级限制在预设的声压级阈值内。
在一个实施例中，例如当耳机的用户为学生时，家长为了限制该学生使用，可以通过设置，使得当预设周期内已输出的第二声音剂量总额大于上述的预设的安全剂量时，在该预设周期内的剩余时间禁止音频输出，从而强制规范该学生在预设周期内停止继续使用耳机。在另一个实施例中可以在第二声音剂量总额大于预设的安全剂量后，将该预设周期内的剩余时间段内将音频输出的声压级限制在预设的声压级阈值内，从而有效地保护用户的听力。示例性地，该声压级阈值可以为耳机用户自身或者耳机用户的监护人(家长)设置的阈值。
本申请实施例中，在第二声音剂量总额大于预设的安全剂量时，通过禁止音频输出或者将音频输出的声压级限制在预设的声压级阈值内，从而有效地规范了用户对耳机的使用，降低用户听力损害，保护用户的听力健康。
本申请实施例中，在获取到输出的音频数据后，根据该音频数据确定目标时段对应的第一声音剂量；由于频域帧(即对音频数据进行声音剂量计算的最小单位)对应的时长通常无法与单位时长对齐，因此，本申请实施例中，该目标时段的起始时刻与第一单位时刻对齐，而目标时段的结束时刻与目标频域帧的结束时刻对齐，该目标频域帧为输出时间经过第二单位时刻，使得该目标时段为：在保证声音剂量计算的完整性的前提下，确定的与单位时段最接近的一个时间段；该单位时段即为以第一单位时刻为起始时刻，以第二单位时刻为结束时刻，时长为单位时长的时段。进而，根据该第一单位时刻、第二单位时刻、目标时段的结束时刻之间的关系，能够准确地从第一声音剂量中划分出单位时长内的声音剂量，从而准确地确定该单位时段对应的第二声音剂量。
应理解，上述实施例中各步骤的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
实施例二：
图3示出了本申请实施例提供的一种声音剂量确定装置的结构示意图，为了便于说明，仅示出了与本申请实施例相关的部分：
该声音剂量确定装置包括：音频数据获取单元31、第一声音剂量确定单元32、第二声音剂量确定单元33。其中：
音频数据获取单元31，获取音频数据。
第一声音剂量确定单元32，根据所述音频数据，确定目标时段对应的第一声音剂量；其中，所述目标时段的起始时刻与第一单位时刻对齐，所述目标时段的结束时刻与目标频域帧的结束时刻对齐；所述目标频域帧为输出时间经过第二单位时刻的频域帧，所述频域帧为对所述音频数据进行声音剂量计算的最小单位；所述第一单位时刻与第二单位时刻分 别为单位时段的起始时刻及结束时刻；所述单位时段的时长为预设的单位时长。
第二声音剂量确定单元33，根据所述第一单位时刻、所述第二单位时刻、所述目标时段的结束时刻以及所述第一声音剂量，确定所述单位时段对应的第二声音剂量。
可选地，所述声音剂量确定装置应用于包含实时时钟的耳机，所述实时时钟每隔所述单位时长发生一次中断，所述第一单位时刻为所述实时时钟发生第一中断时对应的时刻，所述第二单位时刻为所述实时时钟发生第二中断时对应的时刻。
可选地，所述声音剂量确定装置还包括：
时间对齐单元，用于获取当前的世界标准时间；将所述实时时钟的时间与所述世界标准时间对齐。
可选地，所述声音剂量确定装置还包括：
记录单元，用于将所述单位时段与所述第二声音剂量对应记录，得到剂量统计数据。
可选地，所述声音剂量确定装置还包括：
提醒单元，用于若根据所述剂量统计数据，检测到预设周期内已输出的第二声音剂量的总额到达第一预设等级，则发出与所述第一预设等级对应设置的预设提醒。
可选地，所述声音剂量确定装置还包括：
第一限制单元，用于若根据所述剂量统计数据，检测到预设周期内已输出的第二声音剂量总额到达第二预设等级，则根据所述第二预设等级限制音频输出的声压级。
可选地，所述声音剂量确定装置还包括：
第二限制单元，用于若根据所述剂量统计数据，检测到预设周期内已输出的第二声音剂量总额大于预设的安全剂量，则在所述预设周期内的剩余时间禁止音频输出；或者，将音频输出的声压级限制在预设的声压级阈值内。
需要说明的是，上述装置/单元之间的信息交互、执行过程等内容，由于与本申请方法实施例基于同一构思，其具体功能及带来的技术效果，具体可参见方法实施例部分，此处不再赘述。
所属领域的技术人员可以清楚地了解到，为了描述的方便和简洁，仅以上述各功能单元、模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能单元、模块完成，即将所述装置的内部结构划分成不同的功能单元或模块，以完成以上描述的全部或者部分功能。实施例中的各功能单元、模块可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中，上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。另外，各功能单元、模块的具体名称也只是为了便于相互区分，并不用于限制本申请的保护范围。上述 系统中单元、模块的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
实施例三：
图4是本申请一实施例提供的电子设备的示意图。如图4所示，该实施例的电子设备4包括：处理器40、存储器41以及存储在所述存储器41中并可在所述处理器40上运行的计算机程序42，例如声音剂量确定程序。所述处理器40执行所述计算机程序42时实现上述各个声音剂量确定方法实施例中的步骤，例如图1所示的步骤S101至S103。或者，所述处理器40执行所述计算机程序42时实现上述各装置实施例中各模块/单元的功能，例如图3所示音频数据获取单元31至第二声音剂量确定单元33的功能。
示例性的，所述计算机程序42可以被分割成一个或多个模块/单元，所述一个或者多个模块/单元被存储在所述存储器41中，并由所述处理器40执行，以完成本申请。所述一个或多个模块/单元可以是能够完成特定功能的一系列计算机程序指令段，该指令段用于描述所述计算机程序42在所述电子设备4中的执行过程。
所述电子设备4可以是耳机、桌上型计算机、笔记本、掌上电脑及云端服务器等计算设备。所述电子设备可包括，但不仅限于，处理器40、存储器41。本领域技术人员可以理解，图4仅仅是电子设备4的示例，并不构成对电子设备4的限定，可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件，例如所述电子设备还可以包括输入输出设备、网络接入设备、总线等。
所称处理器40可以是中央处理单元(Central Processing Unit，CPU)，还可以是其他通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field-Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
所述存储器41可以是所述电子设备4的内部存储单元，例如电子设备4的硬盘或内存。所述存储器41也可以是所述电子设备4的外部存储设备，例如所述电子设备4上配备的插接式硬盘，智能存储卡(Smart Media Card,SMC)，安全数字(Secure Digital,SD)卡，闪存卡(Flash Card)等。进一步地，所述存储器41还可以既包括所述电子设备4的内部存储单元也包括外部存储设备。所述存储器41用于存储所述计算机程序以及所述电子设备所需的其他程序和数据。所述存储器41还可以用于暂时地存储已经输出或者将要输出的数据。
所属领域的技术人员可以清楚地了解到，为了描述的方便和简洁，仅以上述各功能单元、模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能单元、模块完成，即将所述装置的内部结构划分成不同的功能单元或模块，以完成以上描述的全部或者部分功能。实施例中的各功能单元、模块可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中，上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。另外，各功能单元、模块的具体名称也只是为了便于相互区分，并不用于限制本申请的保护范围。上述系统中单元、模块的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述或记载的部分，可以参见其它实施例的相关描述。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
在本申请所提供的实施例中，应该理解到，所揭露的装置/电子设备和方法，可以通过其它的方式实现。例如，以上所描述的装置/电子设备实施例仅仅是示意性的，例如，所述模块或单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通讯连接可以是通过一些接口，装置或单元的间接耦合或通讯连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的模块/单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请实现上述实施例方法中的全部或部分流程，也可以通过计算机程序来指令相关的硬件来完成，所述的计算 机程序可存储于一计算机可读存储介质中，该计算机程序在被处理器执行时，可实现上述各个方法实施例的步骤。其中，所述计算机程序包括计算机程序代码，所述计算机程序代码可以为源代码形式、对象代码形式、可执行文件或某些中间形式等。所述计算机可读介质可以包括：能够携带所述计算机程序代码的任何实体或装置、记录介质、U盘、移动硬盘、磁碟、光盘、计算机存储器、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、电载波信号、电信信号以及软件分发介质等。需要说明的是，所述计算机可读介质包含的内容可以根据司法管辖区内立法和专利实践的要求进行适当的增减，例如在某些司法管辖区，根据立法和专利实践，计算机可读介质不包括电载波信号和电信信号。
以上所述实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围，均应包含在本申请的保护范围之内。

Claims (16)

  1. 一种声音剂量确定方法，其特征在于，包括：
    获取音频数据；
    根据所述音频数据，确定目标时段对应的第一声音剂量；其中，所述目标时段的起始时刻与第一单位时刻对齐，所述目标时段的结束时刻与目标频域帧的结束时刻对齐；所述目标频域帧为输出时间经过第二单位时刻的频域帧，所述频域帧为对所述音频数据进行声音剂量计算的最小单位；所述第一单位时刻与第二单位时刻分别为单位时段的起始时刻及结束时刻；所述单位时段的时长为预设的单位时长；
    根据所述第一单位时刻、所述第二单位时刻、所述目标时段的结束时刻以及所述第一声音剂量，确定所述单位时段对应的第二声音剂量。
  2. 如权利要求1所述的声音剂量确定方法，其特征在于，所述声音剂量确定方法应用于包含实时时钟的耳机，所述实时时钟每隔所述单位时长发生一次中断，所述第一单位时刻为所述实时时钟发生第一中断时对应的时刻，所述第二单位时刻为所述实时时钟发生第二中断时对应的时刻。
  3. 如权利要求2所述的声音剂量确定方法，其特征在于，所述方法还包括：
    获取当前的世界标准时间；
    将所述实时时钟的时间与所述世界标准时间对齐。
  4. 如权利要求1至3任意一项所述的声音剂量确定方法，其特征在于，在所述确定所述单位时段对应的第二声音剂量之后，还包括：
    将所述单位时段与所述第二声音剂量对应记录，得到剂量统计数据。
  5. 如权利要求4所述的声音剂量确定方法，其特征在于，在所述得到剂量统计数据后，还包括：
    若根据所述剂量统计数据，检测到预设周期内已输出的第二声音剂量的总额到达第一预设等级，则发出与所述第一预设等级对应设置的预设提醒。
  6. 如权利要求4所述的声音剂量确定方法，其特征在于，在所述得到剂量统计数据后，还包括：
    若根据所述剂量统计数据，检测到预设周期内已输出的第二声音剂量总额到达第二预设等级，则根据所述第二预设等级限制音频输出的声压级。
  7. 如权利要求4所述的声音剂量确定方法，其特征在于，在所述得到剂量统计数据后，还包括：
    若根据所述剂量统计数据，检测到预设周期内已输出的第二声音剂量总额大于预设的安全剂量，则在所述预设周期内的剩余时间禁止音频输出；或者，将音频输出的声压级限制在预设的声压级阈值内。
  8. 一种声音剂量确定装置，其特征在于，包括：
    音频数据获取单元，获取音频数据；
    第一声音剂量确定单元，根据所述音频数据，确定目标时段对应的第一声音剂量；其中，所述目标时段的起始时刻与第一单位时刻对齐，所述目标时段的结束时刻与目标频域帧的结束时刻对齐；所述目标频域帧为输出时间经过第二单位时刻的频域帧，所述频域帧为对所述音频数据进行声音剂量计算的最小单位；所述第一单位时刻与第二单位时刻分别为单位时段的起始时刻及结束时刻；所述单位时段的时长为预设的单位时长；
    第二声音剂量确定单元，根据所述第一单位时刻、所述第二单位时刻、所述目标时段的结束时刻以及所述第一声音剂量，确定所述单位时段对应的第二声音剂量。
  9. 如权利要求8所述的声音剂量确定装置，其特征在于，所述声音剂量确定装置应用于包含实时时钟的耳机，所述实时时钟每隔所述单位时长发生一次中断，所述第一单位时刻为所述实时时钟发生第一中断时对应的时刻，所述第二单位时刻为所述实时时钟发生第二中断时对应的时刻。
  10. 如权利要求9所述的声音剂量确定装置，其特征在于，所述声音剂量确定装置还包括：
    时间对齐单元，用于获取当前的世界标准时间；将所述实时时钟的时间与所述世界标准时间对齐。
  11. 如权利要求8至10任意一项所述的声音剂量确定装置，其特征在于，所述声音剂量确定装置还包括：
    记录单元，用于将所述单位时段与所述第二声音剂量对应记录，得到剂量统计数据。
  12. 如权利要求11所述的声音剂量确定装置，其特征在于，所述声音剂量确定装置还包括：
    提醒单元，用于若根据所述剂量统计数据，检测到预设周期内已输出的第二声音剂量的总额到达第一预设等级，则发出与所述第一预设等级对应设置的预设提醒。
  13. 如权利要求11所述的声音剂量确定装置，其特征在于，所述声音剂量确定装置还包括：
    第一限制单元，用于若根据所述剂量统计数据，检测到预设周期内已输出的第二声音剂量总额到达第二预设等级，则根据所述第二预设等级限制音频输出的声压级。
  14. 如权利要求11所述的声音剂量确定装置，其特征在于，所述声音剂量确定装置还包括：
    第二限制单元，用于若根据所述剂量统计数据，检测到预设周期内已输出的第二声音剂量总额大于预设的安全剂量，则在所述预设周期内的剩余时间禁止音频输出；或者，将音频输出的声压级限制在预设的声压级阈值内。
  15. 一种电子设备，包括存储器、处理器以及存储在所述存储器中并可在所述处理器上运行的计算机程序，其特征在于，当所述处理器执行所述计算机程序时，使得电子设备实现如权利要求1至7任一项所述方法的步骤。
  16. 一种计算机可读存储介质，所述计算机可读存储介质存储有计算机程序，其特征在于，当所述计算机程序被处理器执行时，使得电子设备实现如权利要求1至7任一项所述方法的步骤。
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