In this video, we'll discuss the widely used metric of RMS (Root Mean Square) calculations and fully understand the origins of the value, why it's needed in the first place in the domains of analog signals and what it means in the context of audio signals.
Find the full playlist here: • Loudness and Level
Content:
00:00 Introduction
02:12 Electrical theory
06:16 RMS equation and value of sinusoid
08:23 RMS value of a triangle wave
08:49 RMS value of a square wave
09:30 RMS in the context of audio
Desmos calculator for
Sinusoids: www.desmos.com/calculator/2bi...
Triangle wave: www.desmos.com/calculator/gkp...
Square wave: www.desmos.com/calculator/ldb...
References:
Audio Metering; Measurements, Standards, and Practice; Third edition
Media used:
Compressed metal: Higher Octane - Vans in Japan (Royalty Free from KZitem Music catalog)
Uncompressed drums: Paweł Mąciwoda - One Of The First (Unmixed)
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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Check out the audio track in the intro and outro here: / tinderbox
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Негізгі бет Ғылым және технология 7. RMS Explained - Loudness and Level
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