济南助听器讲解双耳佩戴的十大好处_百度文库

1、1、提高声源定位能力1, improve the ability of sound source localization人耳具有极强的声源定位能力。但是,它的先决条件是双耳必须具备同等的听力阈值。如果听力损失且阈值不对称,无论来自什么方向的声音大多数都会被听力阈值较好的一侧听到,这样就无法判定声源的方向。The human ear has the strong ability of sound source localization. However, it is a prerequisite of binaural hearing threshold must have the same.

2、 If the hearing loss and threshold asymmetry, no matter from what direction of sounds most will be side hearing threshold of good to hear, so that it is unable to determine the direction of the sound source.2、提高降噪和言语理解能力2, improve the denoising and language comprehension ability人耳的耳廓具有集音和降噪功能。对一个听力有

3、缺陷的患者来说,提高信噪比是非常重要的。双耳佩戴则意味着二个耳廓同时具备集音和降噪能力,对提高语言分辨能力有极大的意义。Auricle ear has set the tone and noise reducing function. In a hearing defects of patients, improve the SNR is very important. Binaural wear means two ear and have set the tone and noise reduction ability, is of great significance to improv

4、e the language ability to distinguish.3、增强双耳响度整合效应3, enhance binaural loudness integration effect双耳听觉所接受的声音响度要比单耳高一些,在阈值水平,双耳阈值好于单耳阈值约3分贝。在阈上水平,双耳阈值好于单耳阈值约10分贝。因此,双耳佩戴助听器可以使每只助听器的整体增益略为降低,从而减少了声反馈的可能性。同时对于重度聋患者来说,助听器进入饱和状态的机率降低,更有助于改善助听后的言语可懂度。Binaural hearing accepted sound loudness is higher than

5、that of single ear, at the threshold level, binaural threshold are better than single ear threshold of about 3 db. At suprathreshold levels, binaural threshold are better than single ear threshold of about 10 db. Therefore, binaural wear hearing aids can make the overall gain of each hearing aid onl

6、y slightly reduced, thus reducing the possibility of sound feedback. At the same time for patients with severe hearing loss, reduce the probability of hearing aid into the saturated state, it helps a lot to improve the hearing after the speech intelligibility.4、避免迟发性听觉剥夺效应4, avoid delayed auditory d

7、eprivation effect一个存在有双侧听力障碍的患者如果只选择佩戴一个助听器的话,那没有戴用助听器耳朵的听觉中枢对语言的理解能力就会逐渐下降,听力学上把这种现象称为渐进(迟发性听觉剥夺效应,时间越长越严重。产生听觉剥夺效应的主要原因是因为戴助听器的耳朵向大脑输送了足够的信息,使得大脑不再去关注没有佩戴助听器的耳朵,大脑似乎放弃了对传送较弱信号耳的关注。The existence of a bilateral hearing impairment patients if the only choice to wear a hearing aid, that not wearing he

8、aring aid ear central auditory comprehension of language will gradually decline, audiology, this phenomenon is called on progressive (Chi Fa of auditory deprivation effect, the longer the more serious. The main reasons of auditory deprivation effect is because of wearing hearing aids conveying enoug

9、h information to the brain, making brain no longer to pay attention not to wear hearing aids, the brain seems to give up on the transfer of the weak signal ear attention.5、延缓听神经功能衰退5, delaying the auditory nerve function decline生命在于运动,听中枢的神经细胞靠声音的刺激才能达到运动的目的。解决听觉剥夺现象就是解决听中枢神经功能的渐进性衰退。Life is movemen

10、t, listen to the central nerve cells by sound stimulation in order to achieve the purpose of moving. To solve the auditory deprivation phenomenon is solved to listen to the gradual degradation of central nervous system.6、提高聆听舒适度,参与多人交谈6, improve the listening comfort, participate in many people talk

11、由于双耳选配助听器它提高了耳朵自身的集音、降噪、增益、定位、平衡功能与融合效果,使用者对所听到的声音信号会大大地提高了信噪比和极佳的聆听舒适度。因此,可以从容面对多方交谈的需要。对学习、工作、社交、会议等等会带来极大的帮助。Binaural hearing aid because it improves the matching set of sound, ears own noise, gain, positioning, balance function and the fusion effect, users will greatly improve the listening to t

12、he signal-to-noise ratio and excellent comfort to hear sound signal. Therefore, can face needs multi talk calmly. To study, work, socializing, meeting and so on will be a great help.7、消除头影效应7, eliminate the head shadow effect如果一个患者双耳的听力损失不对称,当声音来自听力较差一侧耳的方向时,就会将听力较好的一侧耳朝向声源,这就是头影效应。同样,如果双耳都有听力损失(对称或

13、不对称,而在选配助听器时只选择单耳佩戴的话同样存在这种现象。在我们的日常验配中发现,有相当多单侧选配的患者在听来自对侧耳的声音时,会表现得非常困难,往往会将助听器的佩戴耳朝向另一侧。If the hearing loss in patients with asymmetric a ears, when the voice came from a poor hearing ear direction, will be hearing good side ear toward the sound source, this is the head shadow effect. Similarly,

14、if both ears had hearing loss (symmetric or asymmetric, and in the hearing aids only single ear of the same phenomenon. Found in our daily fitting, a considerable number of patients with unilateral optional listening from the contralateral ear sound, can be very difficult, often will be hearing aid

15、ear toward the other side.8、抑制(掩蔽耳鸣现象8, inhibition (masking tinnitus助听器的放大声会抑制耳鸣的感觉,如果只是单侧选配的话,可能另一侧的耳鸣还仍然存在,这样会影响舒适度和清晰度。Amplified acoustic hearing aids can inhibit the perception of the tinnitus, if only unilateral matching words, may be on the other side of the tinnitus still exist, this will aff

16、ect the comfort and clarity.9、预防单侧性听觉疲劳9, the prevention of unilateral auditory fatigue大多数单侧使用助听器的患者,由于缺乏整合效果,降噪和定向感。往往为了想听到或听清某些声音而采取无限制的加大助听器音量的方法。随着时间的推移,大脑的听觉神经适应了大音量的声音,就会造成听力阈值加重。双耳佩戴由于能够提高整合效果、降噪和定向能力,会给耳朵提供比较高的舒适度和信噪比,就会避免经常单侧性的加大音量,防止听觉疲劳。Most of the patients with unilateral hearing aid use

17、, because of the lack of conformity effect, noise reduction and directional sense. Tend to want to hear or hear certain sounds and adopt methods of hearing aid volume increase without limit. With the passage of time, the brain auditory nerve to a large volume of voice, it will cause the aggravation

18、of hearing threshold. Binaural wear because can improve the integration effect, noise reduction and orientation ability, will give ear to provide relatively high comfort and SNR, will often to avoid unilateral increase volume, prevent auditory fatigue.10、减轻堵耳效应10, reduce the occlusion effect堵耳效应是对自身

19、产生声音(如说话、咀嚼、吞咽、走路等等低频感觉响度明显增加的一种主观感觉。当一个人的外耳道被堵住后自己说话时所产生的1000Hz以下的低频能量不能很有效地通过外耳道口释放出来。我们发现在日常的验配过程中,当外耳道被封闭后在耳道内部留下的空间越大,堵耳的感觉就越轻,反之就越严重。由于双耳佩戴能够提高整合效果,特别是对低频声音的能量整合减小,同时可以降低助听器的整体输出增益,所以助听器的外壳或耳模可以在条件许可的情况下做短做松,通气孔加大,给耳道内部留有尽量大的空间。以达到减轻堵耳效应带来的烦恼。The occlusion effect is to produce the sound of their own (such as talking, chewing, swallowing, walking and so on a subjective feeling of low frequency significantly increased the perceived loudness. When the low frequency energy can not be a person of the external auditory canal was blocked when he speaks