WO2017143714A1 - 自动调整音量的耳机及耳机自动调整音量的方法 - Google Patents

自动调整音量的耳机及耳机自动调整音量的方法 Download PDF

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Publication number
WO2017143714A1
WO2017143714A1 PCT/CN2016/088394 CN2016088394W WO2017143714A1 WO 2017143714 A1 WO2017143714 A1 WO 2017143714A1 CN 2016088394 W CN2016088394 W CN 2016088394W WO 2017143714 A1 WO2017143714 A1 WO 2017143714A1
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volume
sound
speaker
threshold
module
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PCT/CN2016/088394
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English (en)
French (fr)
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李骐骥
陈胜利
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深圳市树源科技有限公司
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Publication of WO2017143714A1 publication Critical patent/WO2017143714A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1083—Reduction of ambient noise
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
    • H04R2460/01—Hearing devices using active noise cancellation

Definitions

  • the present invention relates to the field of earphones, and in particular to a method for automatically adjusting a volume by automatically adjusting a volume of an earphone and an earphone.
  • the tuning earphone detects the volume of the earphone through a sound sensor disposed in the earmuff, and when the volume is too large, the volume is turned down or muted.
  • This type of tuning does not provide good protection for the ear. Because the sound collected by the sound sensor inside the earphone cover is actually the superposition of the audio output of the speaker and the ambient noise, which is equivalent to the sound of the ear. This can reduce the volume when the volume is higher than the human ear.
  • the external noise is high or low. Due to external noise, people cannot hear the audio output in the speaker, and the user cannot experience the music through the headphones.
  • the object of the present invention is to provide an earphone with automatic volume adjustment, which can automatically adjust the audio output of the speaker according to the change of the noise amount of the external environment, so that the ear volume of the earphone is suitable for the human auditory sense, effectively protecting the ear while providing better. Music experience.
  • An earphone that automatically adjusts the volume includes a headphone strap, an earmuff disposed at both ends of the earphone strap, a speaker disposed in the earcup, a manual tuning device for adjusting the volume of the speaker, and an automatic for adjusting the volume of the speaker a wireless module electrically connected to the speaker and the manual tuning device, two speakers are respectively disposed in two ear cups, and the automatic tuning device
  • the first sound sensor for detecting the noise level of the outside world the first sound sensor is disposed outside the ear cup; the second sound sensor for detecting the playing volume of the speaker, the second sound sensor is disposed in the ear cup;
  • the micro control The microcontroller is electrically connected to the first sound sensor, the second sound sensor and the speaker, respectively, for acquiring the noise volume and the playing volume for processing and controlling the volume of the speaker to be turned up or down according to the processing result.
  • Another object of the present invention is to provide a method for automatically adjusting the volume of a headset, and the method for automatically adjusting the volume includes the following steps:
  • the wireless module is paired with the audio device, and the noise level of the outside is collected by the first sound sensor and the noise volume is transmitted to the microcontroller, and then the speaker is collected by using the second sound sensor.
  • the playing volume is transmitted to the microcontroller; the microcontroller is used to acquire the noise volume and the playing volume for processing, and the height is adjusted or lowered according to the processing result.
  • the volume of the speaker is transmitted to the microcontroller; the microcontroller is used to acquire the noise volume and the playing volume for processing, and the height is adjusted or lowered according to the processing result.
  • the method for automatically adjusting the volume of the earphone and the earphone automatically adjusting the volume provided by the embodiment of the invention has the beneficial effects that: when the earphone is used for the first time, the person adjusts the volume to the volume suitable for the person by the manual tuning device, when the person is in the environment
  • the external sound volume is collected by the first sound sensor and transmitted to the microcontroller, and the microcontroller performs sound zone matching on the external noise volume, and determines whether to adjust the speaker volume according to the average value of the external noise volume in a certain period of time.
  • the volume of the speaker is captured by the second sound sensor to control the volume of the speaker to change the volume.
  • the audio output of the speaker can counteract the interference of external noise, guarantee the human hearing experience, and effectively protect the ear.
  • FIG. 1 is a schematic structural diagram of an earphone for automatically adjusting a volume provided by Embodiments 1 and 2 of the present invention
  • FIG. 2 is a schematic block diagram of an earphone for automatically adjusting the volume provided by Embodiments 1 and 2 of the present invention.
  • the earphone includes an earphone connection strap 101, two speakers 240, a manual tuning device 104, a wireless module 250, and a headset connection strap 101.
  • Two ear cups 102 at both ends, the speaker 240 is disposed in the earmuffs 102, and each of the ear cups 102 is provided with a speaker 240.
  • Manual tuning device 104 and speaker 240 It is electrically connected and used to adjust the volume of the speaker 240.
  • the manual tuning device 104 is provided with a function selection button such as play, pause, APP start, and the like, and the volume of the speaker 240 can be adjusted.
  • the wireless module 250 is disposed in the ear cover 102, and the wireless module 250 is electrically connected to the speaker 240 and the manual tuning device 104.
  • the wireless module 250 is used for pairing and connecting with an audio device such as a mobile phone, a tablet, a computer, an audio, etc.
  • the wireless module 250 is a Bluetooth module. It should be noted that the wireless module 250 can also be replaced by a Wifi device, an infrared pairing device, or the like.
  • An audio processor 260 is disposed in the audio tuning module 213.
  • the audio processor 260 is electrically connected to the tuning module 212, the wireless module 250, and the speaker 240, and processes the audio digital signal transmitted by the wireless module 250, and pushes the speaker 240. Play sound.
  • the earphone further includes an automatic tuning device 200.
  • the automatic tuning device 200 includes a first sound sensor 220, a second sound sensor 230, and a microcontroller 210.
  • the first sound sensor 220 is disposed outside the earmuff 102.
  • the first sound sensor 220 For detecting the noise volume of the outside, the second sound sensor 230 is disposed in the ear cover 102, and the second sound sensor 230 is used to detect the playing volume of the speaker 240.
  • the position of the second sound sensor 230 is set to correspond to the position where the speaker 240 is disposed, and the two speakers 240 are respectively disposed in the two ear cups 102.
  • the second sound sensor 230 is two.
  • the two second sound sensors 230 respectively correspond to the positions of the speakers 240 provided in the two ear cups 102.
  • the first sound sensor 220 and the second sound sensor 230 detect the volume in units of decibels (dB).
  • FIG. 2 is a schematic block diagram of the microcontroller 210 in the earphone of the automatic volume adjustment according to the embodiment.
  • the microcontroller 210 includes a receiving module 211, a tuning module 212, and an audio tuning module. 213.
  • the receiving module 211 is configured to input the noise volume from the receiving module 211.
  • the line zone matches and selects a matching zone from a plurality of zones preset in the tuning module 212.
  • the receiving module 211 receives the noise volume from the first sound sensor 220 and the playback from the second sound sensor 230.
  • the volume, tuning module 212 is configured to process the signal received by the receiving module 211 and output the processing result
  • the audio tuning module 213 is configured to control the audio processor 260 to increase or decrease the volume of the speaker 240 according to the processing result.
  • the tuning module 212 when the volume average of the noise volume in the first collection period exceeds the treble threshold, the tuning module 212 outputs an up volume control signal; when the noise volume is within the first acquisition period, the volume average is lower than the bass threshold.
  • the sound module 212 outputs a low volume control signal that is executed by the audio tuning module 213.
  • the direction of the arrow indicates the flow direction of the signal
  • the signal is transmitted to the receiving module 211, and the receiving module 211 transmits the signal to the tuning.
  • the module 212; the tuning module 212 processes the received signal and outputs the processing result, and the processing result signal is passed to the audio tuning module 213, which controls the audio processor 260 to cause the speaker 240 to execute the command to process the result.
  • the wireless module 250 is paired with the audio device.
  • the user adjusts the volume of the speaker 240 through the manual tuning device 104 according to the noise condition of the external environment, and the first sound sensor 220 collects the external noise of the earphone.
  • the signal transmits the external noise signal to the receiving module 211 of the microcontroller 210, and the second sound sensor 230 collects the sound signal of the speaker 240 and transmits the sound signal to the receiving module 211 of the microcontroller 210.
  • a plurality of sound zones are set in the tuning module 212, and the sound zones are separated by a sound threshold, and
  • the tuning module 212 performs a sound zone matching on the noise volume and selects a matching sound zone from a plurality of sound zones, the matching sound zone has a high sound threshold and a low sound threshold; the high sound threshold and the low sound threshold are sounds.
  • the treble threshold and the bass threshold are relative. For example, the same sound threshold is the adjacent two sounds.
  • the bass threshold of the larger zone in the zone is also the treble threshold of the smaller zone, and the tuning module 212 performs zone matching on the noise volume, that is, which level of the zone the noise volume is determined.
  • first The acquisition time period is an artificially set time.
  • the first acquisition time period is set to be less than 5 minutes. It should be noted that the time of the first collection period can be set according to user requirements. In this embodiment, the first collection period is set to 5s.
  • the tuning module 212 controls the speaker 240 to increase the volume, and the volume average of the noise volume during the first acquisition period is lower than the matching.
  • the bass threshold of the zone the tuning module 212 controls the speaker 240 to turn down the volume.
  • the tuning module 212 controls the speaker 240 to increase the volume to avoid the outside world.
  • the noise signal interferes with the in-ear signal and affects the listening experience.
  • the sound module 212 controls the speaker 240 to adjust the low volume without affecting the human hearing experience, but can protect the ear.
  • the method for automatically adjusting the volume of the earphone does not adjust the volume of the speaker 240 immediately after the external noise signal changes, but according to the mean value change of the external noise signal within a certain time (ie, the first acquisition time period). Judging whether or not to adjust the volume, the advantage of this is that it can more accurately determine the external environmental noise situation of the person, avoiding the sudden increase of the external noise signal, resulting in a sudden increase in the volume of the speaker 240. . At the same time, by performing the mean value statistics on the external noise signal, the volume does not change by itself during the statistical time, which also makes the sound change not too frequent.
  • the earphone includes an earphone connection strap 101, two speakers 240, a manual tuning device 104, a wireless module 250, and a headset connection strap 101.
  • Two ear cups 102 at both ends, the speaker 240 is disposed in the earmuffs 102, and each of the ear cups 102 is provided with a speaker 240.
  • the manual tuning device 104 is electrically connected to the speaker 240 and used to adjust the volume of the speaker 240.
  • the manual tuning device 104 is provided with function selection buttons such as play, pause, and APP activation, and the volume of the speaker 240 can be adjusted.
  • the wireless module 250 is disposed in the ear cover 102.
  • the wireless module 250 is electrically connected to the speaker 240 and the manual tuning device 104.
  • the wireless module 250 is used for pairing with an audio device such as a mobile phone, a tablet, a computer, an audio, and the like.
  • the wireless module 250 is a Wi-Fi module.
  • An audio processor 260 is disposed in the audio tuning module 213.
  • the audio processor 260 is electrically connected to the tuning module 212, the wireless module 250, and the speaker 240, and processes the audio digital signal transmitted by the wireless module 250, and pushes the speaker 240. Play sound.
  • the earphone further includes an automatic tuning device 200.
  • the automatic tuning device 200 includes a first sound sensor 220, a second sound sensor 230, and a microcontroller 210.
  • the first sound sensor 220 is disposed outside the earmuff 102.
  • the first sound sensor 220 For detecting the noise volume of the outside, the second sound sensor 230 is disposed in the ear cover 102, and the second sound sensor 230 is used to detect the playing volume of the speaker 240.
  • the position of the second sound sensor 230 is set to correspond to the position where the speaker 240 is disposed, and the two speakers 240 are respectively disposed in the two ear cups 102.
  • the second sound sensor 230 is two.
  • the two second sound sensors 230 respectively correspond to the positions of the speakers 240 provided in the two ear cups 102.
  • the first sound sensor 220 and the second sound sensor 230 detect the volume in units of decibels (dB).
  • FIG. 2 is a schematic block diagram of the microcontroller 210 in the earphone of the automatic volume adjustment according to the embodiment.
  • the microcontroller 210 includes a receiving module 211, a tuning module 212, and an audio tuning module. 213.
  • the receiving module 211 is configured to receive a noise volume from the first sound sensor 220 and a playback volume from the second sound sensor 230.
  • the tuning module 212 is configured to process the signal received by the receiving module 211 and output a processing result, and the audio tuning module 213 is for controlling the audio processor 260 to increase or decrease the volume of the speaker 240 according to the processing result.
  • the direction of the arrow indicates the flow direction of the signal
  • the first sound sensor 220 and the second sound After the sound sensor 230 detects the noise volume and the playback volume respectively, the signal is transmitted to the receiving module 211, and the receiving module 211 transmits the signal to the tuning module 212.
  • the tuning module 212 processes the received signal and outputs the processing result.
  • the resulting signal is passed to an audio tuning module 213 which controls the audio processor 260 to cause the speaker 240 to execute a command to process the result.
  • the wireless module 250 is paired with the audio device.
  • the user adjusts the volume of the speaker 240 through the manual tuning device 104 according to the noise condition of the external environment, and the first sound sensor 220 collects the external noise of the earphone.
  • the signal transmits the external noise signal to the receiving module 211 of the microcontroller 210, and the second sound sensor 230 collects the sound signal of the speaker 240 and transmits the sound signal to the receiving module 211 of the microcontroller 210.
  • a plurality of sound zones are disposed in the tuning module 212, and the sound zones are separated and set by a sound threshold.
  • the tuning module 212 performs sound zone matching on the noise volume and selects from a plurality of sound zones. Matching the sound zone, the matching sound zone has a treble threshold and a bass threshold; the treble threshold and the bass threshold are the volume values of the upper and lower ends of the sound zone, specifically, each zone has a treble threshold and a bass threshold, a treble threshold and The bass threshold is relatively speaking. For example, the same sound threshold is the bass threshold of the larger of the two adjacent zones, and is also the treble threshold of the smaller zone.
  • the tuning module 212 is The noise level is matched by the sound zone, which is to determine which level of the sound volume is in the sound zone.
  • first The acquisition time period is an artificially set time in this implementation.
  • the first acquisition period is set to be less than 5 minutes. It should be noted that the time of the first collection period can be set according to user requirements. In this embodiment, the first collection period is set to 5s.
  • the tuning module 212 controls the speaker 240 to increase the volume, and the volume average of the noise volume during the first acquisition period is lower than the matching.
  • the bass threshold of the zone the tuning module 212 controls the speaker 240 to turn down the volume.
  • the tuning module 212 controls the speaker 240 to increase the volume to avoid The external noise signal interferes with the in-ear signal and affects the auditory experience.
  • the volume of the external noise signal is lower than the bass threshold in the first acquisition period, the environment in which the user is located is relatively quiet, and the volume of the ear of the speaker 240 is larger and clearer, and the ear of the person is long. In a large volume environment, it is susceptible to damage. Therefore, controlling the speaker 240 to adjust the low volume through the tuning module 212 does not affect the human auditory experience, but can protect the ear.
  • the plurality of sound zones have a highest sound threshold, a warning sound threshold, and a lowest sound threshold.
  • the highest sound threshold and the lowest sound threshold are set according to the health tolerance range of the human ear.
  • the highest sound threshold is 120 dB when the speaker is
  • the tuning module 212 in the microcontroller 210 outputs a mute command to the audio tuning module 213, and the audio tuning module 213 automatically controls the speaker 240 to be muted to prevent damage to the human ear.
  • the manual tuning device 104 can be directly operated. More preferably, the method for automatically adjusting the volume of the earphone provided by the embodiment further includes the step of: when the manual tuning device 104 adjusts the speaker 240 When the volume or the automatic tuning device 200 adjusts the volume of the speaker 240, when the playback volume collected by the second sound sensor 230 is greater than the alert sound threshold during the second acquisition period, the microcontroller 210 controls the speaker 240 to turn down the volume to below the alert. Sound threshold.
  • the microcontroller 210 controls the speaker 240 to decrease the volume to below the warning sound threshold, where the second collection period is artificial.
  • the second acquisition time period is less than 90 minutes. Because the person uses the earphone for a long time in a large volume environment, the ear is easily damaged. In this embodiment, the second acquisition time period is set to 90 minutes.
  • the alert sound threshold is 85 dB, and the alert sound threshold is less than the maximum sound threshold.
  • the volume output of the speaker 240 is maintained at the state at the end of the last use, and if the last time the speaker is used, the volume output of the speaker 240 is greater than the highest sound threshold.
  • the receiving module 211 in the microcontroller 210 starts to receive.
  • the playing volume signal is transmitted from the second sound sensor 230, and the receiving module 211 transmits the playing volume signal to the tuning module 212.
  • the tuning module 212 When the playing volume is greater than the highest sound threshold of 120 dB, the tuning module 212 outputs the audio tuning module 213 to the audio tuning module 213. As a result of the volume output, the audio tuning module 213 controls the speaker 240 to adjust the volume to between the highest sound threshold and the lowest sound threshold.
  • the microcontroller 210 controls the speaker 240 to adjust the volume to a more suitable volume range, such as 50 dB to 70 dB.
  • the controller controls the speaker 240 to increase or decrease the volume, it is implemented by means of exponential increase or exponential decrease.
  • the advantage of the volume adjustment mode of exponential increase and exponential decrease is that when the mean value of the external noise signal is large, that is, when x is large, the adjustment amount of the volume y of the speaker 240 is larger, and the mean value of the external noise signal is smaller. That is, when x is small, the adjustment amount of the volume y of the speaker 240 is small.
  • the change of the external noise signal In a low-noise environment, the change of the external noise signal has little effect on the human hearing experience. In a high-noise environment, the change of the external noise signal has a greater impact on the human hearing, so that after setting, it is more in line with the human experience.

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Abstract

本发明提供一种自动调整音量的耳机及耳机自动调整音量的方法，属于耳机领域，其包括有自动调音模块和无线模块，使用无线模块连接音频设备，通过自动调音模块自动采集外界噪音信号，并实时控制耳机的扬声器改变音量。本发明提供的自动调整音量的方法通过设置不同的音区，对外界噪音信号进行音区匹配并对比外界噪音信号以及该外界噪音信号在该音区范围内的高音阈值和低音阈值，实现对扬声器音量的自动增减，控制精确，用户体验更好，利于推广。

Description

自动调整音量的耳机及耳机自动调整音量的方法 技术领域
本发明涉及耳机领域，且特别涉及一种自动调整音量的耳机及耳机自动调整音量的方法。
背景技术
现有技术中，调音耳机通过设置在耳罩内的声音传感器探测耳机的音量大小，当发现音量过大则调小音量或者静音。这样的调音方式不能实现对耳朵进行很好的保护。因为，耳机罩内的声音传感器采集的声音，事实上是自身扬声器音频输出和环境噪音的叠加，也就是相当于入耳的声音。这样可以做到对于音量高于人耳承受范围的时候，降低音量的作用。但是当人在外界噪音环境下使用耳机时，外界噪音有高有低，由于受到外界噪音干扰，人根本无法听清扬声器中的音频输出，用户无法通过耳机进行音乐体验。
发明内容
本发明的目的在于提供一种自动调整音量的耳机，其可以根据外界环境的噪音量变化，自动调整扬声器的音频输出，使耳机的入耳音量适宜人的听觉感官，有效保护耳朵同时提供更好的音乐体验。
本发明是采用以下技术方案实现的：
一种自动调整音量的耳机，耳机包括耳机连接带、设置在耳机连接带两端的耳罩、设置于耳罩内的扬声器、用于调节扬声器音量的手动调音装置、用于调节扬声器音量的自动调音装置与所述扬声器和所述手动调音装置电连接的无线模块，两个扬声器分别设置在两个耳罩内，自动调音装置 包括：用于探测外界的噪音音量的第一声音传感器，第一声音传感器设置于耳罩外；用于探测扬声器的播放音量的第二声音传感器，第二声音传感器设置于耳罩内；微控制器，微控制器分别与第一声音传感器、第二声音传感器和扬声器电连接，用于获取噪音音量以及播放音量进行处理并根据处理结果控制调高或调低扬声器的音量。
本发明的另一目的在于提供一种耳机自动调整音量的方法，自动调整音量的方法包括以下步骤：
首先将无线模块与音频设备配对连接，利用所述第一声音传感器采集外界的所述噪音音量并将所述噪音音量传输给所述微控制器，然后利用所述第二声音传感器采集所述扬声器的所述播放音量并将所述播放音量传输给所述微控制器；再利用所述微控制器获取所述噪音音量和所述播放音量进行处理，并根据处理结果控制调高或调低所述扬声器的音量。
本发明实施例提供的自动调整音量的耳机及耳机自动调整音量的方法的有益效果是：在初次使用耳机时，人通过手动调音装置调整音量至适宜人使用的音量，当人所处的环境变化时，通过第一声音传感器采集外界噪音音量并传输给微控制器，微控制器对外界噪音音量进行音区匹配，并根据一定时间内外界噪音音量的均值做出是否调整扬声器音量的判断，通过第二声音传感器采集扬声器的播放音量实时控制扬声器改变音量。使扬声器的音频输出能抵消外界噪音的干扰，保证人的听觉体验，有效的保护耳朵。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对实施例中所需 要使用的附图作简单地介绍，应当理解，以下附图仅示出了本发明的某些实施例，因此不应被看作是对范围的限定，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他相关的附图。
图1是本发明实施例1和2提供的自动调整音量的耳机的结构示意图；
图2是本发明实施例1和2提供的自动调整音量的耳机的原理框图。
图中标记分别为：
耳机连接带101；耳罩102；手动调音装置104；自动调音装置200；微控制器210；接收模块211；调音模块212；音频调音模块213；第一声音传感器220；第二声音传感器230；扬声器240；无线模块250；音频处理器260。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。因此，以下对在附图中提供的本发明的实施例的详细描述并非旨在限制要求保护的本发明的范围，而是仅仅表示本发明的选定实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
实施例1
图1是本实施例提供的自动调整音量的耳机的结构示意图，请参阅图1，耳机包括耳机连接带101、两个扬声器240、手动调音装置104、无线模块250以及设置在耳机连接带101两端的两个耳罩102，扬声器240设置在耳罩102内，每个耳罩102内均设置有一个扬声器240。手动调音装置104与扬声器240 电连接并用于调节扬声器240的音量，具体而言，手动调音装置104上设置有播放、暂停、APP启动等功能选择按钮，同时可以调节扬声器240的音量大小。
无线模块250设置在耳罩102内，无线模块250与所述扬声器240和手动调音装置104电连接，无线模块250用于与音频设备如手机、平板、电脑、音响等进行配对连接，本实施例中，无线模块250为蓝牙模块，需要说明的是，无线模块250也可以采用Wifi设备、红外配对设备等代替。
音频调音模块213内设置有音频处理器260，音频处理器260与调音模块212、无线模块250和扬声器240电连接，并把无线模块250传送来的音频数字信号进行处理，并推动扬声器240播放声音。
耳机还包括自动调音装置200，自动调音装置200包括：第一声音传感器220、第二声音传感器230和微控制器210，第一声音传感器220设置于耳罩102外；第一声音传感器220用于探测外界的噪音音量，第二声音传感器230设置于耳罩102内，第二声音传感器230用于探测扬声器240的播放音量。具体的，第二声音传感器230设置的位置是与扬声器240设置的位置相对应的，两个扬声器240分别设置在两个耳罩102内，本实施例中，第二声音传感器230为两个，两个第二声音传感器230分别与两个耳罩102内设置的扬声器240位置对应。此处第一声音传感器220和第二声音传感器230探测音量的单位为分贝(dB)。
图2为本实施例提供的自动调整音量的耳机中微控制器210的原理框图，请参阅图2，本实施例中，微控制器210包括接收模块211、调音模块212以及音频调音模块213，接收模块211用于对来自接收模块211的噪音音量进 行音区匹配并从调音模块212中预设的多个音区中选择出匹配音区，具体的，接收模块211接收来自第一声音传感器220的噪音音量和来自第二声音传感器230的播放音量，调音模块212用于处理接收模块211接收的信号并输出处理结果，音频调音模块213用于根据处理结果控制音频处理器260调高或调低扬声器240的音量。
具体而言，当噪音音量在第一采集时间段内的音量均值超过高音阈值，调音模块212输出调高音量控制信号；当噪音音量在第一采集时间段内的音量均值低于低音阈值调音模块212输出调低音量控制信号，控制信号由音频调音模块213执行。
图2中，箭头方向表示信号的流动方向，第一声音传感器220和第二声音传感器230分别探测到噪音音量和播放音量后，将信号传递给接收模块211，接收模块211将信号传递给调音模块212；调音模块212对收到的信号进行处理并输出处理结果，处理结果信号被传递给音频调音模块213，音频调音模块213控制音频处理器260让扬声器240执行处理结果的命令。
使用上述的自动调整音量的耳机，本实施例还提供一种耳机自动调整音量的方法：
首先，将无线模块250与音频设备配对连接，此时，用户根据外部环境的噪音情况，按照自己的使用需求通过手动调音装置104调整扬声器240的音量，第一声音传感器220采集耳机的外界噪音信号并将外界噪音信号传输给微控制器210的接收模块211，第二声音传感器230采集扬声器240的声音信号并将声音信号传输给微控制器210的接收模块211。
调音模块212内设置多个音区，音区是由声音阈值进行分隔设定的，自 动调音装置200工作时，调音模块212对噪音音量进行音区匹配并从多个音区中选择出匹配音区，匹配音区具有高音阈值和低音阈值；高音阈值和低音阈值即是音区的上下两端的音量值，具体的说，每个音区均具有高音阈值和低音阈值，高音阈值和低音阈值是相对而言的，比如说：同一个声音阈值即是相邻的两个音区中较大的音区的低音阈值，同时也是较小的音区的高音阈值，调音模块212对噪音音量进行音区匹配，也即是判断噪音音量处于哪一级音区。
当外界环境发生变化时，外界的噪音信号的音量会发生变化，第一声音传感器220实时的记录外界噪音音量的变化，并得出外界噪音信号在第一采集时间段内的音量均值，第一采集时间段是人为设定的时间，在本实施例中，第一采集时间段设定为小于5min。需要说明的是，第一采集时间段的时间可以根据用户需求进行设置，本实施例中，第一采集时间段设定为5s。
当外界噪音信号在第一采集时间段内的音量均值超过匹配音区的高音阈值时，调音模块212控制扬声器240调高音量，当噪音音量在第一采集时间段内的音量均值低于匹配音区的低音阈值，调音模块212控制扬声器240调低音量。外界的噪音音量在第一采集时间段时间内的均值超过该音区的高音阈值时，说明用户所处的外部环境较为嘈杂，此时，调音模块212控制扬声器240提高音量，以避免外界的噪音信号对入耳信号产生干扰，影响听觉体验。而当外界的噪音信号在第一采集时间段内的音量均值低于低音阈值时，说明用户所处的环境较为安静，此时扬声器240的入耳音量便会更大更清晰，而人的耳朵长期在大音量环境下，容易受到损伤，因此，通过调 音模块212控制扬声器240调低音量，不会影响人的听觉体验，但可以起到保护耳朵的作用。
具体而言，本实施例中，控制器控制扬声器240增加或降低音量时，是采用线性增加或线性降低的方式实现的。线性增加或线性降低是指：扬声器240音量的变化与外界噪音信号均值的变化呈线性关系，也即是如果以扬声器240音量为y，外界噪音信号的均值为x，则y＝a*x(其中a为系数，本实施例中，0<a<10)。
本实施例提供的耳机自动调整音量的方法的，并不是外界噪音信号发生变化后便立即调整扬声器240音量，而是根据外界噪音信号在一定时间(即第一采集时间段)内的均值变化来判断是否进行音量调整的，这样的好处在于，能更准确的判断人所处的外界环境噪音情况，避免出现偶然性的外界噪音信号突然增大的情况，导致扬声器240音量猛增对耳朵产生不适感。同时，通过对外界噪音信号进行均值统计，在统计的时间内，音量不会自行变动，这样也使声音的变化不至太频繁。
实施例2
图1是本实施例提供的自动调整音量的耳机的结构示意图，请参阅图1，耳机包括耳机连接带101、两个扬声器240、手动调音装置104、无线模块250以及设置在耳机连接带101两端的两个耳罩102，扬声器240设置在耳罩102内，每个耳罩102内均设置有一个扬声器240。手动调音装置104与扬声器240电连接并用于调节扬声器240的音量，具体而言，手动调音装置104上设置有播放、暂停、APP启动等功能选择按钮，同时可以调节扬声器240的音量大小。
无线模块250设置在耳罩102内，无线模块250与所述扬声器240和手动调音装置104电连接，无线模块250用于与音频设备如手机、平板、电脑、音响等进行配对连接。本实施例中，无线模块250为Wi-Fi模块。
音频调音模块213内设置有音频处理器260，音频处理器260与调音模块212、无线模块250和扬声器240电连接，并把无线模块250传送来的音频数字信号进行处理，并推动扬声器240播放声音。
耳机还包括自动调音装置200，自动调音装置200包括：第一声音传感器220、第二声音传感器230和微控制器210，第一声音传感器220设置于耳罩102外；第一声音传感器220用于探测外界的噪音音量，第二声音传感器230设置于耳罩102内，第二声音传感器230用于探测扬声器240的播放音量。具体的，第二声音传感器230设置的位置是与扬声器240设置的位置相对应的，两个扬声器240分别设置在两个耳罩102内，本实施例中，第二声音传感器230为两个，两个第二声音传感器230分别与两个耳罩102内设置的扬声器240位置对应。此处第一声音传感器220和第二声音传感器230探测音量的单位为分贝(dB)。
图2为本实施例提供的自动调整音量的耳机中微控制器210的原理框图，请参阅图2，本实施例中，微控制器210包括接收模块211、调音模块212以及音频调音模块213，接收模块211用于接收来自第一声音传感器220的噪音音量和来自第二声音传感器230的播放音量，调音模块212用于处理接收模块211接收的信号并输出处理结果，音频调音模块213用于根据处理结果控制音频处理器260调高或调低扬声器240的音量。
图2中，箭头方向表示信号的流动方向，第一声音传感器220和第二声 音传感器230分别探测到噪音音量和播放音量后，将信号传递给接收模块211，接收模块211将信号传递给调音模块212；调音模块212对收到的信号进行处理并输出处理结果，处理结果信号被传递给音频调音模块213，音频调音模块213控制音频处理器260让扬声器240执行处理结果的命令。
使用上述的自动调整音量的耳机，本实施例还提供一种耳机自动调整音量的方法：
首先，将无线模块250与音频设备配对连接，此时，用户根据外部环境的噪音情况，按照自己的使用需求通过手动调音装置104调整扬声器240的音量，第一声音传感器220采集耳机的外界噪音信号并将外界噪音信号传输给微控制器210的接收模块211，第二声音传感器230采集扬声器240的声音信号并将声音信号传输给微控制器210的接收模块211。
调音模块212内设置多个音区，音区是由声音阈值进行分隔设定的，自动调音装置200工作时，调音模块212对噪音音量进行音区匹配并从多个音区中选择出匹配音区，匹配音区具有高音阈值和低音阈值；高音阈值和低音阈值即是音区的上下两端的音量值，具体的说，每个音区均具有高音阈值和低音阈值，高音阈值和低音阈值是相对而言的，比如说：同一个声音阈值即是相邻的两个音区中较大的音区的低音阈值，同时也是较小的音区的高音阈值，调音模块212对噪音音量进行音区匹配，也即是判断噪音音量处于哪一级音区。
当外界环境发生变化时，外界的噪音信号的音量会发生变化，第一声音传感器220实时的记录外界噪音音量的变化，并得出外界噪音信号在第一采集时间段内的音量均值，第一采集时间段是人为设定的时间，在本实施 例中，第一采集时间段设定为小于5min。需要说明的是，第一采集时间段的时间可以根据用户需求进行设置，本实施例中，第一采集时间段设定为5s。
当外界噪音信号在第一采集时间段内的音量均值超过匹配音区的高音阈值时，调音模块212控制扬声器240调高音量，当噪音音量在第一采集时间段内的音量均值低于匹配音区的低音阈值，调音模块212控制扬声器240调低音量。外界的噪音音量在第一采集时间段时间内的均值超过该音区的高音阈值时，说明用户所处的外部环境较初为嘈杂，此时，调音模块212控制扬声器240提高音量，以避免外界的噪音信号对入耳信号产生干扰，影响听觉体验。而当外界的噪音信号在第一采集时间段内的音量均值低于低音阈值时，说明用户所处的环境较为安静，此时扬声器240的入耳音量便会更大更清晰，而人的耳朵长期在大音量环境下，容易受到损伤，因此，通过调音模块212控制扬声器240调低音量，不会影响人的听觉体验，但可以起到保护耳朵的作用。
多个音区具有最高声音阈值、警戒声音阈值和最低声音阈值，最高声音阈值和最低声音阈值是根据人的耳朵的健康承受范围设定的，本实施例中，最高声音阈值为120dB，当扬声器240音量高于120dB时，微控制器210中的调音模块212输出静音命令给音频调音模块213，音频调音模块213自动控制扬声器240静音，防止人的耳朵受到损害。
在控制器控制扬声器240静音的过程中，如果用户仍然想要打开扬声器240，直接操作手动调音装置104即可。更优选地，本实施例提供的耳机自动调整音量的方法中，还包括步骤：当手动调音装置104调整扬声器240的 音量或自动调音装置200调节扬声器240音量时，当在第二采集时间段内，第二声音传感器230采集的播放音量大于警戒声音阈值，微控制器210控制扬声器240调低音量至低于警戒声音阈值。即手动调音装置104调整扬声器240的音量大于警戒声音阈值时间超过第二采集时间段后，微控制器210控制扬声器240降低音量至低于警戒声音阈值，此处的第二采集时间段是人为设定的一个时间，第二采集时间段小于90min为宜，因为人长时间在大音量环境下使用耳机，极易对耳朵造成损伤，本实施例中，第二采集时间段设置为90min。在本实施例中，警戒声音阈值为85dB，警戒声音阈值是小于最大声音阈值的。
此外，由于用户在每次使用完耳机后，通常不会调整其音量，使得扬声器240的音量输出维持在上次使用结束时的状态，如果上次使用时，扬声器240的音量输出大于最高声音阈值时，下次再开启耳机使用，很可能由于音量过大造成耳朵的不适感，因此，本实施例中，在无线模块250与音频设备配对时，微控制器210中的接收模块211开始接收到第二声音传感器230传来的播放音量信号，接收模块211将该播放音量信号传递给调音模块212，当播放音量大于最高声音阈值120dB时，调音模块212对音频调音模块213输出调低音量的输出结果，音频调音模块213控制扬声器240调整音量至最高声音阈值与最低声音阈值之间。
更优选的是，在无线模块250与音频设备配对时，不管播放音量是否超出最高声音阈值，微控制器210均控制扬声器240调整音量至更适宜人听的音量范围，如50dB～70dB。
具体而言，本实施例中，控制器控制扬声器240增加或降低音量时，是 采用指数增加或指数降低的方式实现的。指数增加或指数降低是指：扬声器240音量的变化与外界噪音信号均值的变化呈指数关系，也即是如果以扬声器240音量为y，外界噪音信号的均值为x，则y＝a·ex(其中a为系数，本实施例中，0<a<10)。
指数增加和指数降低的音量调节方式的优点在于：在外界噪音信号的均值较大，也即是x较大时，扬声器240音量y的调整量更大，而在外界噪音信号的均值较小，也即是x较小时，扬声器240音量y的调整量很小。在低噪音环境下，外界噪音信号的变化对人的听觉体验影响不大，而在高噪音环境下，外界噪音信号的变化对人的听觉影响更大，这样设置后，更符合人的体验。
以上所描述的实施例是本发明一部分实施例，而不是全部的实施例。本发明的实施例的详细描述并非旨在限制要求保护的本发明的范围，而是仅仅表示本发明的选定实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。

Claims (10)

  1. 一种自动调整音量的耳机，其特征在于，所述耳机包括耳机连接带、设置在所述耳机连接带两端的耳罩、设置于所述耳罩内的扬声器、用于调节所述扬声器音量的手动调音装置、用于调节所述扬声器音量的自动调音装置与所述扬声器和所述手动调音装置电连接的无线模块，所述自动调音装置包括：
    用于探测外界的噪音音量的第一声音传感器，所述第一声音传感器设置于所述耳罩外；
    用于探测所述扬声器的播放音量的第二声音传感器，所述第二声音传感器设置于所述耳罩内；
    微控制器，所述微控制器分别与所述第一声音传感器、所述第二声音传感器和所述扬声器电连接，用于获取所述噪音音量以及所述播放音量进行处理并根据处理结果控制调高或调低所述扬声器的音量。
  2. 根据权利要求1所述的自动调整音量的耳机，其特征在于，所述微控制器包括接收模块、调音模块以及音频调音模块，所述接收模块用于接收所述噪音音量和所述播放音量，所述调音模块用于对来自所述接收模块的所述噪音音量进行音区匹配并从所述调音模块中预设的多个音区中选择出匹配音区，所述匹配音区具有高音阈值和低音阈值；当所述噪音音量在第一采集时间段内的音量均值超过所述高音阈值，所述调音模块输出调高音量控制信号，当所述噪音音量在所述第一采集时间段内的音量均值低于所述低音阈值所述调音模块输出调低音量控制信号，所述音频调音模块用于根据所述调高音量控制信号或所述调低音量控制信号控制调高或调低所 述扬声器的音量。
  3. 根据权利要求2所述的自动调整音量的耳机，其特征在于，所述自动调音装置包括所述无线模块为蓝牙模块或Wi-Fi模块。
  4. 一种采用如权利要求1所述的自动调整音量的耳机的耳机自动调整音量的方法，其特征在于，其包括：
    将所述无线模块与音频设备配对连接；
    利用所述第一声音传感器采集外界的所述噪音音量并将所述噪音音量传输给所述微控制器，利用所述第二声音传感器采集所述扬声器的所述播放音量并将所述播放音量传输给所述微控制器；以及
    利用所述微控制器获取所述噪音音量和所述播放音量进行处理，并根据处理结果控制调高或调低所述扬声器的音量。
  5. 根据权利要求4所述的耳机自动调整音量的方法，其特征在于，利用所述微控制器的接收模块接收所述噪音音量和所述播放音量，利用所述微控制器对所述噪音音量进行音区匹配并从所述微控制器预设的多个音区中选择出匹配音区，所述匹配音区具有高音阈值和低音阈值；当所述噪音音量在第一采集时间段内的音量均值超过所述高音阈值，所述微控制器控制调高所述扬声器的音量，当所述噪音音量在所述第一采集时间段内的音量均值低于所述低音阈值，所述微控制器控制调低所述扬声器的音量。
  6. 根据权利要求5所述的耳机自动调整音量的方法，其特征在于，所述多个音区具有最高声音阈值和最低声音阈值，当所述噪音音量超过所述最高声音阈值时，所述微控制器控制所述扬声器静音，当所述噪音音量低于所述最低声音阈值时，所述微控制器控制所述扬声器保持音量不变。
  7. 根据权利要求6所述的耳机自动调整音量的方法，其特征在于，所述多个音区还具有警戒声音阈值，当在第二采集时间段内，所述第二声音传感器采集的所述播放音量大于所述警戒声音阈值时，所述微控制器控制所述扬声器调低音量至低于所述警戒声音阈值。
  8. 根据权利要求6所述的耳机自动调整音量的方法，其特征在于，所述接线端***所述音频设备时，所述微控制器控制所述扬声器调整音量至所述最高声音阈值与所述最低声音阈值之间。
  9. 根据权利要求5至8任一项所述的耳机自动调整音量的方法，其特征在于，所述微控制器控制所述扬声器线性增加或线性降低音量。
  10. 根据权利要求5至8任一项所述的耳机自动调整音量的方法，其特征在于，所述微控制器控制所述扬声器指数增加或指数降低音量。
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