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所在平台: Udemy |
课程主页: https://www.udemy.com/course/loudspeaker-engineering-how-to-design-speaker-crossovers/
课程评论：没有评论
课程名称：扬声器工程：如何设计扬声器分频器 课程概述：设计属于你自己的扬声器分频器 本课程是扬声器设计过程中的最后一步。你将学习如何利用FRD和ZMA文件（参考声学课程2）来设计2路和3路分频器。这些设计将在免费的应用程序XSim中进行。分频器设计虽然有一些通用的指导原则，但每个分频器都是独特的。为此，本课程构建了五种不同类型的音箱：两款2路低音反射书架扬声器、一款3路低音反射扬声器、一款密闭式MTM扬声器，以及一款带双低音单元的3路落地扬声器。通过这些实例，你将更好地理解设计过程，这不仅需要知识，还需要直觉和经验。 特定电路的分频器设计 除了基本的扬声器滤波（1阶、2阶等），还有其他电路被用于修正系统的频率和相位响应。由于我们有5个示例进行实验，足以涵盖大部分实际的分频器项目。其中包括阻抗均衡电路、衰减垫、挡板步进补偿、梯级延迟网络、陷波滤波器等电路。 测试新分频器 在计算机上设计分频器非常方便，但我们还将进行实际测试。我拥有大量的电子元件，包括不同规格的电容器、电感器和电阻器。设计完成后，我们将组装一个原型分频器，检查其测量结果和声音效果。我还会提供一些技巧，帮助你在制作原型时避免常见问题。 构建分频器网络 构建分频器网络需要一些动手能力。你需要注意电路板的大小和材料，组件的放置位置，以及如何固定这些组件，确保它们不会松动。在这个过程中，你将不可避免地掌握一些基本的焊接技巧。 通过修完本课程以及之前的两门课程，你将在课程结束时能够从零开始完全设计你自己的多路扬声器。
Design you own speaker crossoverThis course is the last piece in the loudspeaker design process. You will learn how to use the FRD and ZMA files (check Acoustics 201 course) to design 2-way and 3-way crossovers. These designs will be done in XSim which is a free application. Crossover design, while it does have some general guidelines, it's unique for every crossover. For this reason, 5 different types of enclosures have been built for this course: two 2-way bass reflex bookshelf speakers, a 3-way bass reflex, a sealed MTM and a 3-way bass reflex floorstanding speaker with dual woofers. This way you will get a better understanding on how the process works. It takes not only knowledge, but also intuition and experience when designing a crossover.Specific circuits for crossover designBesides the basic filtering for speakers (1st order, 2nd order, etc), there are other circuits which are implemented to correct the frequency and the phase response of the system. Since we have 5 examples to play with, we have enough crossover projects to go through most of these in a practical way. To mention some of the circuits: impedance equalization circuit, attenuation pad, baffle step compensation, ladder delay network, notch filter, and more.Testing the new crossoversDesigning a crossover on your computer is convenient but we will also test it out. I have a large amount of electrical components, capacitors, inductors and resistors, from small to large values. After we design the crossover in XSim, we will assemble a prototype crossover and check how it measures and how it sounds. Some tips and tricks on how to make your life easier and what to avoid when building a prototype.Building a crossover networkBuilding a crossover network will require some handy work. You will need to be aware of the size and material of the board, how and where you place your components. What will you use to fix the components to the board. How to make sure the components won't rattle about. Unavoidably you will acquire some basic soldering skills as well.At the end of this course, and by taking the previous 2 courses as well, you will be able to fully design from scratch your own multi-way loudspeaker.
