Definition of Transmission loss (duct acoustics)
Transmission loss (TL) in duct acoustics describes the acoustic performances of a muffler-like system. It is frequently used in the industry areas such as muffler manufacturers and NVH (noise, vibration and harshness) department of automobile manufacturers, and in academic studies. Generally, the higher transmission loss a system has, the better it will perform in terms of noise cancellation.
Terms mentioned above
Related terms
Impulse noise (acoustics)
Impulse noise is a category of (acoustic) noise that includes unwanted, almost…
Acoustic attenuation
In acoustics, acoustic attenuation is a measure of the energy loss of sound propagation…
Occupational noise
Occupational noise is the amount of acoustic energy received by an employee's auditory…
Acoustic resonance
Acoustic resonance is a phenomenon in which an acoustic system responds strongly to…
Spectral splatter
In radio electronics or acoustics, spectral splatter (also called switch noise) refers…
Plane wave tube
An acoustic duct or plane wave tube is a test facility used in acoustics. Anechoic…
Acoustical engineering
Acoustical engineering (also known as acoustic engineering) is the branch of engineering…
Statistical energy analysis
Statistical energy analysis (SEA) is a method for predicting the transmission of sound…
Acoustic contrast factor
In acoustics, the acoustic contrast factor is a number that describes the relationship…
Frequently asked questions
What is Transmission loss (duct acoustics)?
Transmission loss (TL) in duct acoustics describes the acoustic performances of a muffler-like system. It is frequently used in the industry areas such as muffler manufacturers and NVH (noise, vibration and harshness) department of automobile manufacturers…