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Introduction to Music Production- Week 1

Audio Basics

Sol M

on 18 March 2013

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Transcript of Introduction to Music Production- Week 1

SOUND: PROPAGATION AMPLITUDE FREQUENCY Sound waves can travel through a variety of mediums such as air, metal or water.
It takes time for the waves to move from one place to another and that time is different depending on which medium they are travelling through. The compression and rarefaction
of, for example the air, create
the sound wave.
The compression occurs when particles are pressed together and rarefaction happens when particles are allowed to expand. The compression and the rarefaction happens at a certain speed over time. Our brains can detect how many times per second this sequence happens. The higher the speed the higher the frequency (pitch). I hope you have enjoyed this!
Please let me know if there is anything I missed or could have explained better.

Thank you for watching
and critiquing! Timbre is what happens in our brain when we hear a collection of sounds in multiple frequencies operating simultaneously.

Our brains hear that as different colours of sound. Hello, I am María del Sol from Buenos Aires, Argentina.
This lesson is for week 1 of Introduction To Music Production at Coursera.org. I will be teaching the audio basics: What is sound and some of its properties, such as Propagation, Amplitude, Frequency and Timbre. It's a sequence of waves of pressure (compression and rarefaction) that travel through the air or another medium and can be heard when they reach a person’s or animal’s ear.

Some of its properties are: During their propagation, waves can be reflected, refracted, or attenuated by the medium making possible the sense of SPACE
because our brain is capable of determining the slight differences in arrival time. PROPAGATION PROPAGATION So if we manipulate delay, reberb, phases or flangers we can manipulate our sense of propagation. The height of the compression and the rarefaction will determine the amount of energy in the wave: its amplitude.
The more energy the sound wave has the louder the sound seems. We hear intensity as loudness and we measure it in decibels. AMPLITUDE AMPLITUDE It's important at the moment of producing music (mixing, panning and using dynamic
plug-ins that control the amplitude of our signal over time).
It's also important when buying gear, such as microphones. FREQUENCY Frequency is measured in hertz. 1 hertz is equal to one vibration (compression/ rarefaction cycle) per second and we can only perceive between 20 vibrations
per second up to 20,000. TIMBRE
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