5. Sound Intensity - Loudness and Level

We'll look at sound intensity as the last of the sound measurement metrics in the physical domain and compare it to sound power and sound pressure. The real advantage of sound intensity is its property of directionality, and we'll see how the spatial location of sound sources can be isolated with sound intensity using heat maps. Finally, we'll take a look at the decibel unit of sound intensity level and where its usefulness lies.

Find the full playlist here:    • Loudness and Level  

Content:

00:00 Sound Intensity
03:40 Inverse Square Law
04:55 Directionality
07:42 Measurements
08:20 Decibel quantity

References:
https://community.sw.siemens.com/s/ar...
http://www.sengpielaudio.com/calculat...

In this module on Loudness and Level we'll delve into how our sense of loudness is different for different frequencies and all the nuances associated with hearing. We'll look at level, and the technical ways of measuring and calculating the amplitude of signals. And finally we’ll look at a new way of measuring loudness that’s all the rage at the moment, the Loudness unit. It has redefined the standard used in streaming and broadcast, and promises to bring an end to the age of super compressed audio and the so-called loudness war.

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