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所在平台: Coursera |
课程主页: https://www.coursera.org/learn/audio-engineering
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课程名称：音频与音乐工程基础：第一部分 音乐声音与电子学 概述：本课程旨在让学生学习声学和电子学的基本概念，并了解如何将这些知识应用于音乐声音的理解和电子乐器的制作。课程主题包括声波、音乐声音、基本电子学及其在放大器和扬声器设计中的应用。 课程大纲： 第一周 - 介绍RC与电路基础 内容：介绍振荡与声波，包括简单振荡系统、声压、声波、声速、波长、频率与音高、声压级、响度、声音生成、音乐声音与“噪声”的性质。电子学基础：电荷、电流、电压、功率、电阻、欧姆定律、直流电路，以及在简单电路中查找电流与电压。 第二周 - 声学共鸣与电路基础 内容：声波的反射与吸收、气柱的共鸣、封闭空间与房间的共鸣、声波的衍射与扩散、混响以及设计优秀音乐工作室的原则。交流信号、相位与复数、电容器、电感器、变压器、阻抗、交流电路及交流电路分析、简单滤波器（高通、低通、带通）。 第三周 - 必要数学与交流电路分析 内容：晶体管、真空管、运算放大器、放大、功率增益、单级放大器。声音转化为电信号（麦克风与吉他拾音器），电信号转化为声音（扬声器）。 第四周 - 交流信号与扬声器辐射 内容：电子吉他电子学，拾音器设计、拾音器位置与音色、音量控制电路、音色控制电路。简单吉他放大器的概述，包括电源、音量控制、前置放大器、音色控制和功率放大部分。 第五周 - 封闭式扬声器设计与开口式扬声器设计 内容：扬声器箱体设计的基本原则、扬声器驱动单元与箱体的相互作用、扬声器箱体的重要性、家庭立体声音响的扬声器设计、分频网络、吉他放大器（开口式）扬声器箱体、低音放大器（封闭式与通风式）扬声器箱体。 第六周 - 吉他拾音器与效果分析及吉他放大器的设计与建造 内容：构建吉他放大器，如何焊接，使放大器工作 - 系统测试与故障排除。可视化声波、频率内容与音色、在电声系统中信号的修改、真空管放大器与失真、哇音踏板、说话箱。
Name:Week 1 - Introduction RC & Introduction to Electrical Circuits MB
Description:Introduction to oscillations and sound waves, simple oscillating systems, sound pressure, sound waves, the speed of sound, wavelength, frequency and pitch, sound pressure level, loudness, making sound, properties of musical sound versus “noise”. Electronics fundamentals - charge, current, voltage, power, resistance, Ohm’s law, DC circuits, finding currents and voltages in simple circuits.
Name:Week 2 - Acoustic Resonance RC & Electrical Circuits MB
Description:Reflection and absorption of sound, resonances in air columns, resonances in enclosures and rooms, diffraction and diffusion of sound, reverberation, principles of designing a good music studio. AC signals, phase and complex numbers, capacitors, inductors, transformers, impedance, AC circuits and AC circuit analysis, simple filters (high-pass, low-pass, band-pass)
Name:Week 3 - Some Necessary Mathematics MB & AC Circuit Analysis
Description:Transistors, vacuum tubes, opamps, amplification, power gain, single-stage amplifiers. Converting sound to electrical signals –microphones and guitar pickups, converting electrical signals to sound – loudspeakers
Name:Week 4 - AC Signals & Loudspeakers and Radiation RC
Description:Electric guitar electronics, pickup design, pickup placement and tone, volume control circuits, tone control circuits. Overview of a simple guitar amplifier, power supply, volume control, preamp, tone control, power amp section.
Name:Week 5 - Closed Box Loudspeaker Design RC & Ported Loudspeaker Design
Description:Designing speaker enclosures, basic principles, interaction of speaker driver with the cabinet, why a cabinet at all? Speaker designs for home stereo, crossover networks, guitar amplifier (open) speaker enclosures, bass amplifier (closed and vented) speaker enclosures.
Name:Week 6 - Guitar Pickup and Effects Analysis MB & Design and Construction of a Guitar Amplifier MB
Description:Building the guitar amplifier, how to solder, getting the amp to work - systematic testing and troubleshooting. Visualizing sound waves, frequency content and tone, signal modification in electro-acoustic systems, tube amplifiers and distortion, wah pedal, talk box.
In this course students learn the basic concepts of acoustics and electronics and how they can applied to understand musical sound and make music with electronic instruments. Topics include: sound waves, musical sound, basic electronics, and applications of these basic principles in amplifiers and speaker design.
