ANSI/ASA S3.2-2020: Speech Intelligibility
Loudspeaker systems can be used for sound reinforcement in theaters and concert halls; microphones are used in many applications, including telephones, hearing aids, public address systems…
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,”…