Microphone in speech communicator

本发明涉及到诸如陆地移动无线电台，步话机，无绳电话或是移动电话(1)等等通话装置内部的一种声波导管(5)。为了在此类电话中获得良好的声音质量，通常是采用一个盖子(3)将话音反射到电话主体(2)内部的一个话筒(6)上。在翻盖上面设置一个作为声波导管(5)的气管，并且将其引导到电话主体和话筒上，就能明显地改善声音质量。为了避免由于形成共振而必然会在这种声波导管中产生不均匀的频率响应，在声波导管内部使用普通的消声材料并配合利用局部点上的最低压力来对话筒作声音衰减。 The present invention relates to a sound guide (5) in a speech communicator, for example a land mobile radio, a walkie talkie, a cordless telephone or a mobile telephone (1). To achieve good sound quality in such a telephone, a cover (3) is often used which reflects the speech in towards the microphone (6) in the body (2) of the telephone. By arranging an air tunnel as a sound guide (5) on the flip-cover and letting it conduct to the body of the telephone and the microphone, the sound quality is improved substantially. In order to avoid uneven frequency response which inevitably occurs in such sound guides due to resonance formation, attenuation material of conventional type is used inside the sound guide together with acoustic extinction by utilizing pressure minimums as a localization point for the microphone.