Audio Masterclass /ONE

Course title: Understanding Audio /ONE

Your journey through Audio Masterclass /ONE

WHERE YOU ARE NOW: You studied sound for a couple of lessons in school science, but they didn't tell you anything useful for pro audio and music production. You wish you could understand frequency, decibels, acoustic treament, and everything else that audio professionals need to know.

AFTER THIS COURSE: You have a very firm grounding in everything you need to know to understand audio all the way through from sound travelling in air, through microphones, preamps, audio electronics, digital audio systems, all the way to monitoring in your own home recording studio. You have full confidence yourself and in everything that's important in pro audio.

INTRODUCTION
Introduction
KNOWLEDGE
Sources of sound
Frequency
The decibel
The inverse square law
Introduction to acoustics
Standing waves
Acoustic treatment
Sound insulation basics
Acoustic treatment basics
Sound insulation in more depth
FURTHER KNOWLEDGE
Audio electronics
Digital audio
TUTORIALS (with audio demonstrations)
Audio signals and waveforms
Sine waves

Excerpt...

The first set of examples consists of sine wave tones. A sine wave is the simplest possible audio signal. Every sound that you hear can be considered as consisting of a collection of sine waves of different frequencies, amplitudes and phase relationships.

In audio, we commonly use a 1 kHz (1 kilohertz = 1000 Hz) tone as a reference because it is subjectively halfway in the audio frequency band:

The lowest frequency that we normally consider to be in the audio range is 20 Hz.

You probably will not be able to hear a 20 Hz tone, not unless you have loudspeakers with an exceptionally good low frequency response. If there is distortion in your system, you may be able to hear frequencies that are multiples of 20 Hz, but these are generated by the distortion. They are not present in the file.

The upper limit of the audio range is normally considered to...

End of excerpt

Square waves
Noise
Phase
Clipping
Frequency response
Digital audio bit depth
Analog tape recording
Summary
ASSESSMENT
Sample assessment question

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