Whether you're a professional musician, play music with your friends on the weekends or just like to listen to CDs, music technology affects your life.

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Open University UK

May 1, 2022

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Last updated:

May 1, 2022

Duration:

Unlimited Duration

FREE

This course includes:

Unlimited Duration

Badge on Completion

Certificate of completion

Unlimited Duration

Description

Whether you're a professional musician, play music with your friends on the weekends or just like to listen to CDs, music technology affects your life.

In this course, Sound for music technology: An introduction, you will learn some of the basics of music technology, starting with what sound is, how it is created and how it travels.

Course learning outcomes

After studying this course, you should be able to:

  • Explain correctly the meaning of the emboldened terms in the main text and use them correctly in context
  • Describe simply what a pressure wave is and give a simple explanation of sound in terms of a travelling pressure wave
  • Explain ‘cycle’ in terms of an oscillating source and the pressure wave it produces
  • Relate amplitude (including peak-to-peak and r.m.s.), frequency, period and wavelength to a sinusoidal waveform
  • Calculate the wavelength of a pressure wave from a graph of pressure against distance

Course Curriculum

  • Introduction 00:05:00
  • Learning outcomes 00:07:00
    • Music and technology 00:15:00
    • What is sound? 01:00:00
    • Describing sound 00:50:00
    • Summary 00:10:00
    • The importance of sine waves 00:20:00
    • Pressure in the atmosphere 00:40:00
    • Pressure waves and cycles 00:45:00
    • Period 00:30:00
    • Wavelength 01:15:00
    • Pressure variations in one place 00:50:00
    • Summary 00:15:00
    • Frequency and period 00:25:00
    • Summary 00:05:00
    • The experimental result 00:30:00
    • Frequency, wavelength and the speed of sound 00:30:00
    • Summary 00:05:00
    • Phase and phase difference 00:50:00
    • Cancellation and reinforcement 00:45:00
    • Summary 00:10:00
    • Defining amplitude 00:45:00
    • Practical units of amplitude 00:30:00
    • Root-mean-square amplitude 00:30:00
    • Summary 00:10:00
    • The subjective experience 00:45:00
    • Summary 00:05:00
    • The octave sound 00:30:00
    • Octave pitch and frequency increments 00:40:00
    • Summary 00:10:00
    • Frequency range 00:40:00
    • Dynamic range 00:45:00
    • Summary 00:05:00
    • Introduction 01:00:00
    • Adding decibels 00:50:00
    • The decibel as a measure of sound amplitude 01:00:00
    • Summary 00:10:00
    • Conclusion 00:03:00

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