AET 1380 Lecture Notes - Lecture 4: Reverberation, Traffic Flow, North Carolina Highway 20

• School: Belmont University
• Department: Audio Engineering Technology
• Course: AET 1380
• Professor: Time Brown

Document Summary

Reverb time the amount of time for a sound to die away" (-60 db) or rt60: larger the room the longer the reverb time. Live" rooms: reverberation decay of 1 sec or more louder. Dead or dry" rooms: little or no reverb time quieter. Typical studio acoustics: diffusers, absorbers, variable acoustics, gobos: go between, has either diffusion or absorption, used to create acoustic spaces in a room, low frequency traps/membrane absorbers. Control room design: too much science and smoke/mirrors, stick to basics, ergonomics, convenient work flow, creative environment, no distractions / lighting, sight lines, access / traffic flow. Transmission of sound: some sound is not absorbed, reflected, diffracted, or diffused, this especially applies to frequencies with longer wavelengths (bass freq. ) Isolation: specialized construction techniques are used to improve isolation from outside sound & between adjacent rooms. Noise: noise criteria is a rating system used by acousticians (nc, nc curve (nc 20 30 db)