01-16-2024, 10:08 PM
Quote:But claims that the audio track highlighted online is unique are false.
"This person seems to have discovered the Low Frequency Effects (LFE) track that is present in nearly every movie since Star Wars introduced it in 1977," said Chris Kyriakakis, an engineering professor at the University of Southern California who specializes in acoustics, in a January 3, 2024 email.
"It contains the low-frequency rumble, explosions, etc, and is beneficial because it reduces the amplifier load for the other speakers by using its own speaker (called a subwoofer). There is absolutely no way to use this track as a weapon."
Audio equipment maker Marantz says on its website that LFE "is an audio track found on all Dolby and DTS audio" (archived here).
Filmmakers have long used infrasound -- noise at frequencies generally inaudible to humans -- to make films eerier.
https://factcheck.afp.com/doc.afp.com.349F244
It looks like many people came to the same sinister conclusion but according to the above article, it's simply another layer of sound, adding depth to the audio experience. Nothing to be alarmed about.
