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Understanding Audio

Understanding Audio Levels

A basic understanding of the general audio levels mentioned in this article will help you avoid the common mistakes often made when connecting audio...

Understanding Distributed Speaker Systems

Distributed speaker systems are also known as "100 volt line" or "70 volt line" speaker systems. They are used extensively where multiple speakers are...

Understanding Microphone Sensitivity

What do you understand about microphone sensitivity? Of late I have seen a number of people miss-interpret the specifications of microphones, especially when it...

Double amplifier power does not double the volume

This article logically shows the relationship between amplifier power, SPL and loudness. It includes a level difference exercise and a gain calculator.

Understanding Audio Frequency

Every sound we hear is at a certain frequency. When we say someone has a deep voice, we are describing a voice producing low...

Understanding Decibels (part 1)

Decibels are widely used in audio, and often misunderstood. These articles give a practical understanding on using decibels in audio work.  But first, some...

Speaker Impedance Changes Amplifier Power

Speaker impedance changes amplifier power output. In fact, your amplifier power could be nearly half or double its capacity - depending on the impedance...

Understanding Decibels (part 2)

In the first article we saw that a decibel is not a fixed unit, rather, it is a ratio between two levels.  A decibel...

Understanding Acoustic Feedback

Acoustic feedback it that annoying loud continuous tone you get when the sound system is not set up or operated properly. Acoustic feedback can...