精美PPT模板下载[春苗教育]

1、耳机里的秘密耳机里的秘密1优讲借鉴小组成员小组成员2优讲借鉴目录目录耳机材料探讨耳机材料探讨 Click to add title in here Click to add title in here Click to add title in here 4123ThemeGallery is a Design Digital Content & Contents mall developed by Guild Design Inc.3优讲借鉴1.耳机材料探讨耳机材料探讨耳机的分类动圈式动圈式静电式静电式等磁式等磁式 换能方式换能方式 结构结构佩戴形式佩戴形式开放式开放式半开放式半开放

2、式封闭式封闭式耳塞式耳塞式挂耳式挂耳式头戴式头戴式4优讲借鉴1.耳机材料探讨耳机材料探讨关于耳关于耳塞材料塞材料塑料材质塑料材质塑料可以有多塑料可以有多变的外型，一变的外型，一个声波可以从个声波可以从塑料腔体上做塑料腔体上做多次不规则的多次不规则的反射以及简单反射以及简单的声音吸收的声音吸收降低声音在降低声音在金属腔体内金属腔体内的谐振及共的谐振及共振，使声波振，使声波得到更好的得到更好的传导传导金属材质金属材质5优讲借鉴1.耳机材料的探讨耳机材料的探讨两种材质耳机对比结果：铝合金更因其造型的铝合金更因其造型的可呈规则型多变性，可呈规则型多变性，能更好地配合腔体设能更好地配合腔体设计，达到塑料

3、腔体所计，达到塑料腔体所不能达到的解析力和不能达到的解析力和清晰度清晰度。多次不规则的反射和吸收多次不规则的反射和吸收可以对声音做出尽可能的可以对声音做出尽可能的修饰，一个好的成熟的塑修饰，一个好的成熟的塑料腔体对声音是有很强的料腔体对声音是有很强的提升作用，能让本身素质提升作用，能让本身素质很一般的耳塞单元发出更很一般的耳塞单元发出更好的声音。好的声音。金属材质金属材质塑料材质塑料材质6优讲借鉴1.耳机材料的探讨耳机材料的探讨 TPC（电解铜）：纯度为（电解铜）：纯度为99.5% OFC（无氧铜）：纯度为（无氧铜）：纯度为99.995% LC-OFC（线形结晶无氧铜或结晶无氧铜）：纯度（线形

4、结晶无氧铜或结晶无氧铜）：纯度在在99.995%以上以上 OCC（单晶无氧铜）：纯度最高，在（单晶无氧铜）：纯度最高，在99.996%以上，以上，又分为又分为PC-OCC和和UP-OCC 大多数耳机线都以铜为原料，一般的纯度大多数耳机线都以铜为原料，一般的纯度(一般用几一般用几N表示，比如表示，比如4N、6N）越高导电性越好，信号失真越）越高导电性越好，信号失真越小，常见的有：小，常见的有：7优讲借鉴1.耳机材料的探讨耳机材料的探讨结论结论购买者对耳机音质要求人数最多，普遍接受购买者对耳机音质要求人数最多，普遍接受45-100元之间的耳机。元之间的耳机。可见，人们普遍追求性价比高的耳机可见，人

5、们普遍追求性价比高的耳机音质音质舒适度舒适度质量质量45-100元元20-45元元100-500元元调查显示8优讲借鉴Click to edit title styleText in hereText in here Contents ContentsThemeGallery is a Design Digital Content & Contents mall developed by Guild Design Inc.ThemeGallery is a Design Digital Content & Contents mall developed by Guild Des

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