9 minutes
This vide discusses the elements of a microphone and what is important in determining which one to use for a given situation.
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7 minutes
This video discusses analog and digital mixers and the elements of each.
This video discusses the elements of a DSP and how it processes the audio signal.
2 minutes
This video discusses the general principles of what an amplifier is and some of the distortions that can happen and why.
3 minutes
This video discusses the installation of loudspeakers including two-way, three-way and crossover speakers.