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Overview of a signal path

Overview of a signal path: Foundations of Digital Audio
Overview of a signal path: Foundations of Digital Audio

The key to understanding how audio works is to know the signal path. Sound waves in the acoustic domain are converted to a mic-level analog signal by a transducer like a microphone. A preamp amplifies it to line level, and then a power amp boosts it to speaker level for playback through a loudspeaker.

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