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A new technology that lets sound fans crank up their bass late at night on receivers without waking the kids in the next room has been revealed.The new post-processing technology developed by Audyssey Laboratories for AV receivers and HTiBs will let consumers enjoy cranked up bass without disturbing the sleep of others the company has said.
TWICE Magazine claims that the new technology, called low-frequency containment (LFC), will appear in AV receivers later this year from Onkyo, Denon and Marantz, Audyssey executives said.
Consumers will press a button on a remote or on a product’s front panel to engage LFC mode.
“The technology addresses the ability of bass waves below 200Hz to penetrate walls more easily than high-frequency waves,” said Audyssey co-founder and CTO Chris Kyriakakis.
“To keep the peace with family members and other apartment dwellers, LFC dynamically limits bass output according to volume changes in program material. At the same time, however, LFC artificially synthesizes harmonic tones based on the lost fundamental bass tones “to give consumers the impression of improved bass,” Kyriakakis explained.
These higher frequency harmonics, he noted, are less capable of penetrating walls than fundamental bass tones.
The synthesised harmonics are added on top of the existing harmonics of the program material’s bass tones.
Walls muffle high-frequency sounds by 20dB more than they muffle bass frequencies, he noted.
LFC is one of three audio post-processing technologies that Audyssey plans to announce in the coming months.
