STV8287D View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

STV8287D

Digital Audio Decoder/Processor for A2 and NICAM Television/Video Recorders

STMicroelectronics 

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Dedicated Digital Signal Processor (DSP)

STV82x7

4.6.4

Bass Management Configuration 3

The third configuration, shown in Figure 16, assumes that all speakers except the center are full

range, then all bass information will be directed to and reproduced by the front left and front right

and both surround speakers. In order to provide more flexibility to this configuration, a switch will

offer an option which will produce a subwoofer channel by the LFE channel.

When the Subwoofer Switch is OFF, the input channels will be attenuated by 8 dB. Configuration 3

is required in certain high-end products.

Figure 16: Bass Management Configuration 3 (all switches indicate their reset state)

L

-8dB

-4dB

-8dB

C

-4dB

Level Adjustment

OFF Switch

+

+

-4.5dB

L

+8dB

+4dB

C

+8dB

+4dB

-8dB

R

-4dB

Ls

-8dB

-4dB

Rs

-8dB

-4dB

LFE

-8dB

-4dB

Subwoofer

ON Switch

+

+

+

+

+10dB

Subwoofer

ON Switch

+8dB

+4dB

+8dB

+4dB

+8dB

+4dB

R

Ls

Rs

SubW

32/149

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