IEC 61000-4-6:2023—Electromagnetic Compatibility Testing
Modern society deals with radio waves constantly, such as when we use our mobile phones, wireless computer networks, and other communications applications. Conducted radio frequency…
IEC 61094-4 Ed. 1.0 b:1995—Working Standard Microphones
Micro (from the Greek word mikros) means “small,” and phone (from the Greek word phone) means “sound” or “voice.” This translates microphone to “small sound,”…
ASA/ANSI S1.18-2018 (R2023): Acoustic Impedance Method
In environmental acoustics, the ground effect is described by its acoustic impedance. By analogy with the electrical or mechanical impedance, the ground impedance effect accounts for…
IEEE/ANSI C63.10-2020: Unlicensed Wireless Devices Compliance Testing
With the longest wavelengths in the electromagnetic spectrum, radio wave emissions derive from cosmic sources throughout the universe. More locally, radiofrequency emissions flourish, thanks to…
ANSI/ASA S1.13-2020 Measuring Sound Pressure Levels in Air
Have you heard: the American National Standard ANSI/ASA S1.13-2020: Measurement Of Sound Pressure Levels In Air has been revised. What is Loudness? In the beginning,…
ANSI/ASA S12.6-2016 Hearing Protectors Real-Ear Attenuation
The human ear, despite being an incredibly complex system, comprising sensory organs, bones, and other anatomical structures, can have its usefulness easily detracted from, or…
ANSI/ASSP A10.46-2020: Construction Hearing Loss Prevention
Transmitting sounds through our internal hammer, anvil, and stirrup—paired with a variety of auditory structures—is one of the five main ways in which we sense…
ANSI/ASA S12.2-2019: Criteria For Evaluating Room Noise
Background Noise Distractions and Harm All noises are in your head. After sound causes the eardrum to vibrate, a series of processes occur, and the…
Procedure For Determining Audiograms In Toothed Whales (Odontocetes)
Communication isn’t unique to human society, nor is it confined to the terrestrial world. Whales, as highly-intelligent mammals bound to the sea—and whales are mammals,…