CN101227759B - Earphone device with automatic volume control function - Google Patents

Earphone device with automatic volume control function Download PDF

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Publication number
CN101227759B
CN101227759B CN 200710036464 CN200710036464A CN101227759B CN 101227759 B CN101227759 B CN 101227759B CN 200710036464 CN200710036464 CN 200710036464 CN 200710036464 A CN200710036464 A CN 200710036464A CN 101227759 B CN101227759 B CN 101227759B
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sound
volume
ambient sound
volume control
analysis module
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CN 200710036464
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CN101227759A (en
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欧阳合
王阳
王新成
黄娟
徐晖
顾群楠
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昆山杰得微电子有限公司
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Abstract

本发明公开了一种具有自动音量控制功能的耳机装置,包括耳机扬声器,用于播放音频;靠近耳机扬声器的麦克风,用于采集人耳附近的环境声;环境声分析模块,与麦克风连接,接收上述麦克风所采集到的环境声信号,并进行处理;音量控制模块,与环境声分析模块和耳机扬声器连接,接收环境声分析模块的分析结果,并根据该分析结果控制耳机扬声器输出的音量大小和是否静音。 The present invention discloses an earphone device having an automatic volume control functions, including the earpiece speaker for playing audio; earpiece speaker close to the microphone for collecting ambient sound near the ear; sound environment analysis module, connected to the microphone, receiver the above-described microphone collected ambient sound signals and processed; volume control module, and ambient sound analysis module and the earpiece speaker is connected to the analysis result receiving ambient sound analysis module, and controls the earpiece speaker output based on the analysis result of the volume and whether muted. 本发明能准确地捕获人耳听到的环境声,进而控制耳机输出声音的音量,排除环境声对耳机播放的影响。 The present invention can accurately capture the ambient sound of the human ear to hear, and then control the sound volume of the headphone output, excluding the impact of ambient sound on the headphones.

Description

具有自动音量控制功能的耳机装置技术领域 BACKGROUND earphone device with automatic volume control,

[0001] 本发明涉及一种耳机装置,尤其涉及一种具有自动音量控制功能的耳机装置,可根据外界环境自动调节音量,其应用领域包括但不限于各种具有音频播放功能的便携式设备、移动通信设备。 [0001] The present invention relates to a headphone device, particularly to a headphone device having an automatic volume control, the volume can be automatically adjusted according to the external environment, which applications include but are not limited to various portable devices having an audio playback function, a mobile communication device.

背景技术 Background technique

[0002] 数码技术的发展给人们带来了极大的便利。 [0002] the development of digital technology to bring a great convenience. 随着mp3播放器等便携式设备的普及,戴着耳机走路,随时随地地聆听音乐正成为一种潮流。 With the popularity of portable devices such as mp3 players, headphones walk, listen to music anytime, anywhere is becoming a trend. 然而,外界环境是多变的,马路上人声嘈杂,而图书馆内却十分安静。 However, the external environment is changing, Master noisy road, while the library is very quiet. 使用同样的音量播放音乐,在周围环境的声音(以下简称环境声)嘈杂的地方可能会听不清楚(人耳在听到耳机播放声音的同时,还将听到环境声,两种声音混合时,会使人不容易听清楚耳机播放的声音),而在环境十分安静的地方却可能显得音量过大,这便需要人们不断地去手动调整播放器的音量大小,十分烦琐。 Using the same volume of music in the sounds of the surroundings (hereinafter referred to as ambient sound) noisy place might not hear (the human ear to hear the headphones while playing sound, and the environment will also hear the sound of two voices when mixed , it is not easy to make people hear sound from headphones to play), and in the environment is very quiet place but may seem too loud, which would require people constantly to manually adjust the player's volume is very cumbersome. 如果能有一种耳机,可以根据环境的吵闹程度自动调节输出声音的音量,应当可以给人们提供方便。 If there is a headset, can automatically adjust the degree noisy environment in accordance with the sound volume of the output, it can easily be provided to people.

[0003]目前,提供类似功能的装置还很少见。 [0003] Currently, devices that provide similar functionality still rare. 中国发明专利申请公开说明书CN1507293A公开了一种智能化调节移动通讯装置耳机音量的方法,利用手机上的麦克风来判断环境声的大小,从而调整麦克风和扬声器的音量。 Chinese Invention Patent Application Publication No. CN1507293A discloses a method for adjusting the headphone volume intelligent mobile communication devices, with the microphone on the handset to determine the size of the acoustic environment, thereby adjusting the volume of the microphone and speaker. 但该装置仅能针对手机通话,不适用于听音乐等场合,且利用手机通话的麦克风来检测环境声,对环境声和人通话的声音无法区分,不易对环境声大小作出准确的判断。 However, the device only for phone calls, listen to music and so does not apply to, and use of the phone call microphone to detect ambient sound, environmentally sound and people can not distinguish between voice calls and difficult to make an accurate judgment on the size of the sound environment.

发明内容 SUMMARY

[0004] 本发明要解决的技术问题是提供一种具有自动音量控制功能的耳机装置,其能准确地捕获人耳听到的环境声,进而控制耳机输出声音的音量,排除环境声对耳机播放的影响。 [0004] The present invention is to solve the technical problem is to provide an earphone device having an automatic volume control which can accurately capture the ambient sound of the human ear, and then control the output sound volume of the headphones, the sound of the headphones exclude ambient Impact.

[0005] 为解决上述技术问题,本发明具有自动音量控制功能的耳机装置包括: Earphone device [0005] To solve the above problems, the present invention is an automatic volume control comprising:

[0006] 耳机扬声器,用于播放声音; [0006] headset speaker for playing sound;

[0007] 麦克风,用于采集环境声; [0007] a microphone for collecting ambient sound;

[0008] 环境声分析模块,与麦克风连接,接收麦克风所采集到的环境声信号,并进行处理; [0008] The sound environment analysis module, and a microphone connected to the microphone receiving ambient sound signal collected and processed;

[0009] 音量控制模块,与环境声分析模块和耳机扬声器连接,接收环境声分析模块的分析结果,并根据该分析结果控制耳机扬声器输出的音量大小和是否静音。 [0009] volume control module, an analysis module connected to the ambient sound and the earpiece speaker, receiving the analysis results of the ambient sound analysis module, and the earpiece speaker volume control output in accordance with the analysis result and not muted.

[0010] 本发明的有益效果在于:为了排除环境声对耳机播放的影响,本发明在耳机上靠近扬声器的位置(即佩戴耳机时靠近人耳的地方)加入一个辅助麦克风,从而可以最准确地捕获人耳听到的环境声,进而控制耳机输出声音的音量。 [0010] Advantageous effects of the present invention: In order to exclude the influence of the ambient sound of headphone playback, close to the speaker in the headset position according to the present invention (close i.e. earphones where the human ear) was added a secondary microphone, can be most accurately capture ambient sound the human ear to hear, and then control the volume of the headphone output sound. 本发明能实时地采集人耳周围的环境声,并分析其内容:在环境声音量大时,提高耳机所播放声音的音量,使人听得更清楚;在环境声音量小时,降低耳机播放声音,以保护人的听力;在出现突发情况时,将耳机静音,使人不会因戴耳机听音乐而分神,从而避免意外的发生。 The present invention can collect real-time sound environment around the ear, and analyze its contents: When ambient sound volume, increase the volume of the headphones play sound, people hear better; the amount of hours at ambient sounds, sound reducing headphones to protect human hearing; when emergency situations arise, the headset mute, people will not wear headphones to listen to music while distracted, so as to avoid accidents.

附图说明 BRIEF DESCRIPTION

[0011] 图I是本发明具有自动音量控制功能的耳机装置的系统结构框图; [0011] Figure I is a block diagram of the present invention having the structure of the earphone device automatic volume control system;

[0012]图2是本发明具有自动音量控制功能的耳机装置中环境声分析模块的内部结构示意图。 [0012] FIG. 2 is a schematic view of the present invention having an internal configuration of the earphone device of the automatic volume control sound environment analysis module.

具体实施方式 Detailed ways

[0013] 下面结合附图和实施例对本发明进行进一步详细的说明。 Drawings and embodiments of the present invention will be further described in detail [0013] below in conjunction.

[0014] 如图I所示,本发明具有自动音量控制功能的耳机装置包括:麦克风,环境声分析模块,音量控制模块,耳机扬声器。 [0014] FIG I, the present invention has an automatic volume control earphone device includes: a microphone, the sound environment analysis module, a volume control module, an earpiece speaker. 其中,麦克风用于米集环境声;米集到的环境声信号被送入环境声分析模块进行处理,将当前环境声和使用者上次调整音量时的环境声相比较,判断环境声的变化情况,从而决定是否应将耳机输出的音量变化;环境声分析模块的分析结果被送入音量控制模块,以调节耳机扬声器播放声音的音量;经音量控制模块调整后的声音被输出至耳机扬声器播出。 Wherein the ambient sound collector microphone for m; m is set to the ambient sound environment of the sound signal is fed into the analysis module for processing, when the ambient sound of the current acoustic environment and adjust the volume compared to the previous user, change of ambient sound determination case, to determine whether a change should be the volume of the headphone output; the analysis results of the ambient sound is fed into the analysis module volume control module to adjust the volume of sound to the loudspeaker of the headset; is output to the earpiece speaker sound broadcast by adjusting the volume control module out.

[0015] 麦克风的作用为记录人耳听到的环境声。 [0015] the role of the microphone for recording ambient sounds the human ear to hear. 显而易见,为了更精确地记录环境声,麦克风的摆放位置应尽可能地靠近人耳。 Obviously, in order to more accurately record the acoustic environment, the placement of the microphone as close as possible to the human ear. 由于耳机扬声器紧贴人耳,这也就意味着麦克风和耳机扬声器应尽量靠近(如图I中虚线框所示),使人在佩戴耳机时麦克风能靠近人耳,从而能更精确地记录人所听到的环境声。 Since the headphone speaker close to the ear, which means that the microphone and headset speaker as close as possible (as shown in Figure I dashed box), people wearing headphones when the microphone as close to the human ear, so that it can more accurately record people hear ambient sound. 但同时也应注意,麦克风和耳机扬声器之间应有一定的隔离措施,以避免耳机扬声器所播放的声音被麦克风所捕获。 But it should also be noted that there should be a certain degree of isolation between the microphone and headset speaker, speaker headphones to avoid the sound being played is captured by a microphone.

[0016] 环境声分析模块的内部结构如图2所示,它由两个必需的单元(历史环境音量存储单元、环境音量判断单元)和一个可选的单元(突发情况判断单元)所构成。 [0016] The internal structure of the sound environment analysis module shown in Figure 2, which is constituted by two essential units (history storing unit volume environment, the environment judgment unit volume) and an optional unit (contingencies determination means) . 其中,历史环境音量存储单元的功能是保存用户上一次调整耳机音量时的环境声音量,以作为环境声变化的判断基准。 Wherein, the volume function environment history memory cell is stored when the amount of ambient sound of a user to adjust the volume on the headset, as the determination reference of the ambient sound change. 当用户刚开机、尚未调整过音量时,该单元保存开机时的环境声音量。 When the user just machines, the volume has not been adjusted, the amount of ambient sound when the power-saving unit.

[0017] 环境音量判断单元的功能是根据输入信号计算当前输入的环境声音量,并将其与历史环境音量存储单元所保存的用户上一次调整音量时的环境声音量相比较。 [0017] The amount of the ambient sound volume setting function of the input signal determination unit calculates the amount of ambient sound according to the input current, and an adjustment of the volume setting history storage unit volume saved compared to its user. 若当前的环境音量更高,说明环境变得嘈杂,需要提高耳机播放的音量才能让人听清楚;反之则应降低耳机播放的音量。 If higher current environment volume, indicating that the environment becomes noisy, it is necessary to increase the volume of headphones can make people listen carefully; on the contrary should reduce the volume of the headphones. 该单元的判断结果为具体应将耳机播放音量升高/降低的幅度(包括音量不变的情况),并被送往音量控制模块。 The determination result for a specific unit should headphones volume up / down amplitude (including the case of the same volume), and sent to the volume control module.

[0018] 可选的突发情况判断单元用于将输入信号与一些预先设定的突发事件特征相比对,以判断是否发生了需要将耳机静音的危险情况。 [0018] Optional contingencies input signal determination unit for comparison with a preset number of unexpected events of features to determine whether there has been the need to mute the headphone dangerous situations. 人在聆听音乐的时候,对其它声音的感知能力将变得迟钝,在周围环境有危险发生时,可能因来不及躲避而造成伤害。 When people, when listening to music, perception of other sounds will become dull, there is a danger in the surrounding environment, it may cause injury due to too late to escape. 该单元的功能既是监测环境声信号,在预设的突发事件特征出现时将耳机迅速静音,以使人对环境中潜在的危险提高警觉。 Environmental monitoring function is both a sound signal of the unit, at the time of pre-emergency features appear quickly mute the headset to make potentially dangerous to the environment vigilant. 突发事件特征的设置可根据具体环境设置,包括但不限于如下内容: Characterized in emergency settings can be set depending on the environment, including but not limited to the following:

[0019] 环境音量急剧上升; [0019] a sharp rise in the volume environment;

[0020] 环境音量大于某阈限; [0020] environment volume greater than a certain threshold;

[0021] 环境声中出现“危险”、“小心”等特定声音语音信号的语谱特征; Spectral characteristic word [0021] "dangerous" environment appears sound, "be careful" and other specific sound speech signal;

[0022] ......[0023] 一旦突发事件被触发,突发情况判断单元将发送静音信号至音量控制模块。 [0022] ...... [0023] Once the emergency event is triggered, emergencies determination unit transmits a mute signal to the volume control module.

[0024] 该环境声分析模块既可以用模拟电路实现,也可以经模数转换后用软件编程实现。 [0024] The sound environment analysis module may be implemented with an analog circuit, it can be implemented by software programming after analog to digital conversion. 特别地,如果要实现特定声音(如“危险”、“小心”等)的语音频谱检测,则一般用模数转换后软件编程的方法来实现。 In particular, if a particular sound to be achieved (e.g., "danger", "caution", etc.) voice spectrum detection, a method is generally Software programmable analog to digital conversion is achieved.

[0025] 音量控制模块的功能是根据环境声分析模块输出的音量调整信号来调整耳机扬声器播放声音的音量。 [0025] The volume control module function is to adjust the signal analysis module according to the volume of the ambient sound output from the earpiece speaker to adjust the volume of the playback sound. 特别地,当环境声分析模块有静音信号发出时,音量控制模块将忽略音量调整信号,直接将耳机静音。 In particular, when the ambient sound signal analysis module emits mute, volume control module will ignore the volume adjustment signal, the headset will directly muted. 另外,本模块还可以接受外界输入的手动音量控制信号(如图I所示),以方便用户调整音量。 Further, the present module may also accept external inputs from the manual volume control signal (shown in FIG. I), to facilitate the user to adjust the volume. 每次用户手动调整音量时,本模块应发送一个提示信号至环境声分析模块,以便后者开始记录当前的环境声音量(参见历史环境音量存储单元的描述)。 Each time a user to manually adjust the volume, this module should send a prompt signal to the sound environment analysis module, which is to start recording the current amount of ambient sound (see history storage unit volume environment described). 该音量控制模块既可以用模拟电路实现,也可用数字方法实现。 The volume control module may be implemented using analog circuitry, digital methods may also be implemented. 对于后者,主要是指在数模转换之前对数字音频信号进行放缩,从而实现音量控制的处理方法。 For the latter, mainly refers to the digital audio signal before the scaling digital to analog conversion, thereby realizing the processing method for volume control.

[0026] 上述音量控制模块和环境声分析模块在装置实现时位置可灵活多变,既可以位于耳机扬声器附近,也可以靠近耳机所插入的便携式设备一侧,甚至可以置于便携式设备之中、成为便携式设备的一部分。 [0026] The ambient sound volume control module and analysis module position achieved when the device flexible, may be located near the earpiece speaker, the portable device may be close to one side of the headphone is inserted, or even placed in a portable device, become part of a portable device.

Claims (8)

1. 一种具有自动音量控制功能的耳机装置,其特征在于,包括: 耳机扬声器,用于播放声音; 麦克风,用于采集环境声; 环境声分析模块,与麦克风连接,接收麦克风所采集到的环境声信号,并进行处理;所述的环境声分析模块包括:历史环境音量存储单元,用于记录使用者上一次调整音量时的环境声音量;环境音量判断单元,根据输入信号计算当前输入的环境声音量,并将其与历史环境音量存储单元所保存的使用者上一次调整音量时的环境声音量相比较,来判断环境声的变化,从而决定是应该将耳机扬声器所播放声音的音量升高或降低,还是维持不变;突发情况判断单元,用于将输入信号与一些预先设定的突发事件特征相比对,以判断是否发生了需要将耳机静音的危险情况; 音量控制模块,与环境声分析模块和耳机扬声器连接,接收环境声分 A headphone device having an automatic volume control, characterized by comprising: an earpiece speaker, for playing sounds; a microphone for collecting ambient sound; sound environment analysis module, connected to the microphone, the microphone receives the collected ambient sound signals and processed; the acoustic environment analysis module comprising: a history storing unit volume environments, ambient sound for adjusting the volume amount of time on a recording user; environment judging unit volume, calculated according to the current input of the input signal the amount of ambient sound, ambient sound and the amount of time to adjust the volume on its environmental and historical volume storage unit held by the user compared to determine changes in the sound environment, which should be decided by playing sound headset speaker volume up or decrease, or remain unchanged; contingencies determining unit, an input signal with a number of unexpected events compared to the preset feature pairs to determine whether there has been the need to mute the headphone dangerous situations; volume control module , connected to the sound environment analysis module and the earpiece speaker, ambient sound receiving points 析模块的分析结果,并根据该分析结果控制耳机扬声器输出的音量大小和是否静音。 Analysis of the results of the analysis module, and controls the output volume of the earpiece speaker is not muted and the basis of the analysis result.
2.如权利要求I所述的具有自动音量控制功能的耳机装置,其特征在于,所述的麦克风靠近所述的耳机扬声器,以精确记录人耳附近的环境声。 2. I claim the headphone device with automatic volume control, characterized in that said microphone near the earpiece speaker, the acoustic environment to accurately record the vicinity of the human ear.
3.如权利要求I所述的具有自动音量控制功能的耳机装置,其特征在于,所述的突发事件特征包括但不限于:环境音量急剧上升;环境音量大于某阈限;环境声中出现特定声音语音信号的语谱特征。 3. The earphone device with automatic volume control function according to claim I, wherein said emergency features include, but are not limited to: a sharp rise in the ambient sound volume; appeared sound environments; environmental volume greater than a certain threshold language specific sound speech signal spectral characteristics.
4.如权利要求I所述的具有自动音量控制功能的耳机装置,其特征在于,所述的环境声分析模块通过模拟电路实现,或者经模数转换后用软件编程实现。 I 4. The earphone as claimed in claim device with automatic volume control, wherein said ambient sound analysis module implemented by an analog circuit, or implemented using software programming after analog to digital conversion.
5.如权利要求4所述的具有自动音量控制功能的耳机装置,其特征在于,所述的环境声分析模块经模数转换后用软件编程实现,以实现特定声音的语音频谱检测。 Headphone device with automatic volume control as claimed in claim 4, wherein said ambient sound analysis analog to digital conversion module is implemented using software programming, to enable detection of the speech spectrum specific sound.
6.如权利要求3或5所述的具有自动音量控制功能的耳机装置,其特征在于,所述的特定声音包括“危险”、“小心”。 Headphone device with automatic volume control as claimed in claim 3 or claim 5, wherein said specific sound include "danger", "caution."
7.如权利要求I所述的具有自动音量控制功能的耳机装置,其特征在于,所述的音量控制模块用模拟电路或数字方法实现,所述的数字方法指在数模转换之前对数字音频信号进行放缩,从而实现音量控制的处理方法。 7. The earphone device with automatic volume control function according to claim I, wherein said volume control module implemented method of digital or analog circuits, digital method of digital to analog conversion means prior to the digital audio scaling signal, thereby realizing the processing method for volume control.
8.如权利要求I所述的具有自动音量控制功能的耳机装置,其特征在于,所述的音量控制模块和所述的环境声分析模块位于所述的耳机扬声器附近,或者靠近耳机所插入的便携式设备一侧,或者置于便携式设备之中、成为便携式设备的一部分。 I as claimed in claim 8. The earphone device with automatic volume control, wherein said control module and the volume of the environmental sound analysis module located near the earpiece speaker, headset or near the inserted the portable device side, or placed in a portable device, as part of the portable device.
CN 200710036464 2007-01-15 2007-01-15 Earphone device with automatic volume control function CN101227759B (en)

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