STV8268FD View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'STV8268FD' PDF : 157 Pages View PDF
Dedicated Digital Signal Processor (DSP)
STV82x8
4.6.1
Bass Management Configuration 0
In some cases, the bass management filters are available in the decoder itself, so there is no need
to reproduce these filters. The output configuration shown in Figure 13 offers this possibility.
Figure 13: Bass Management Configuration 0 (with Pro Logic switch indicating its reset state)
L
L
R
R
C
C
Ls
Ls
Rs
-15 dB
LFE
-5 dB
+
Rs
SubW
4.6.2
Bass Management Configuration 1
Configuration 1, shown in Figure 14, assumes that all five speakers are not full range and that all of
the bass information will be redirected to and reproduced by a single subwoofer. This configuration
is intended for use with 5 satellite speakers.
To prevent signal overload, the five main channels are attenuated by 15 dB, while the LFE channel
is attenuated by 5dB to maintain the proper mixing ratio.
Figure 14: Bass Management Configuration 1 (with Pro Logic switch indicating its reset state)
L
L
R
R
C
Ls
Rs
LFE
-5 dB
-15 dB
+
C
Ls
Rs
SubW
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