The Bass Management CAO, realized using the existing building blocks in GTT, is used to separate the bass signal from the rest of the frequency spectrum and route them to the bass capable speakers, such as full range speakers and subwoofers, to optimally reproduce the bass energy at the output of a system. This CAO separates an input stereo signal into 5 output channels as described in the SFD section with different frequency content.
Bass management, in the context of an up-mixing system, is necessary to ensure that there is sufficient bass reproduced at the output of the up-mixing system. Not all the speakers in a car can play back the bass content. It is also important to note that the bass content should be routed to and is played back by the bass-capable speakers, and the total bass energy at the input and the output of the up-mixing system is the same.
Bass Management Design
Audio Inputs:
- Stereo audio source
Audio Outputs:
- Channels 1 and 2 contain the L and R input channels with the bass content removed.
- Channels 3 and 4 contain the bass content of the L and R input channels which would be routed to bass capable speakers.
- Channel 5 shall contain the Sub-bass signal which is to be routed to the subwoofer.
