A combination of controls and circuits in an A/V receiver or controller that determines how bass frequencies are distributed among the loudspeakers.
Used by Dolby Digital, DTS, and hopefully SACD and DVD-Audio audio playback systems (consumer 5.1 recievers) to create a bass signal by adding together the Left, Center, Right, Left Surround and Right Surround channels. This summed signal is then feed into a LowPass filter where only the low frequencies (20-200Hz) are left. This signal is then added to the LFE channel and then output to the subwoofer. NOTE: The sub-woofer is a different signal than that of the LFE channel.
A function in a multichannel surround processor that combines the low bass frequencies from all of the channels (including the LFE channel) in a recording, and directs it to the appropriate loudspeakers. To do this, the customer must tell it the number, kind (small or large), and placement of loudspeakers, and whether there is a subwoofer in the system. See: LFE
A circuit which utilizes the subwoofer in a 5.1 system to provide bass extension for the 5 main speakers. The Bass Manager steers all frequencies below 80Hz into the subwoofer along with the LFE (see LFE) source signal.
A combination of controls and circuits in an A/V receiver or controller that determines which speakers receive bass signals.
Bass management is the act of managing bass in an audio system. It can be a very complicated and daunting topic and the following gives a very simplified overview. Bass management frequently involves developing and maintaining comprehensive solutions and protocols in a single platform and sharing low end resources in collaboration with ubiqutous subsonic entities in a low frequency setting amongst the various architectural environments.