Top Qs
Timeline
Chat
Perspective
Speech interference level
From Wikipedia, the free encyclopedia
Remove ads
Speech Interference Level (SIL) is an acoustical parameter calculated from sound pressure levels measured in octave bands. It is used to characterize a noise signal in the frequency range where the human ear has its highest sensitivity.
 | This article includes a list of general references, but it lacks sufficient corresponding inline citations. (April 2021) |
 |
The Speech Interference Level is calculated as the arithmetic mean of unweighted sound pressure levels in three or four octave bands in the 500 Hz - 4 kHz frequency range
Several variants of the Speech Interference Level are in use:
- PSIL: Arithmetic mean of 500 Hz, 1 kHz and 2 kHz octave bands
- SIL3: Arithmetic mean of 1 kHz, 2 kHz and 4 kHz octave bands
- SIL4: Arithmetic mean of 500 Hz, 1 kHz, 2 kHz and 4 kHz octave bands
Remove ads
External links
- Speech Interference Levels in Aircraft Interior Noise Measurement
- Sound Metrics: Speech Interference Level, Siemens Knowledge article (2019)
Wikiwand - on
Seamless Wikipedia browsing. On steroids.
Remove ads