Sony STR-DG520 Operating Instructions Manual page 41

Types of A.F.D. mode
A.F.D. mode Multi channel Effect
[Display] audio after
decoding
A.F.D. AUTO (Detecting Preseuls the sound as it was recorded/encoded "_vithoul
[A.F.D. AUTO] automatically) adding any surround effects. However. tiffs receiver ',.,,'ill
geuerale a low frequency signal for output to the sub
woofer when there is no LFE signals.
PRO LOGIC 4 chamml Performs Dolby Pro Logic decoding. The source recorded
[DOLBY PL] in 2 channel formal is decoded inlo 4.1 channels.
} )(r )_, " ' PRO LOGIC 11MOVIE 5 chamml Performs Dolby Pro L( _,ic I1 M( le mode decoding. This
[PLII MV] selling is ideal for movies encoded in Dolby Surround. In
addition, lhis mode can reproduce sound in 5.1 channel for
watching videos of overdubbed or old movies.
PRO LOGIC 11MUSIC 5 chamml Performs Dolby Pro Logic II Music mode decoding. This
[PLII MS] setting is ideal lk_rnormal stereo sources such as CDs.
MULTI STEREO (Multi Stere()) Outputs 2 channel lefl/right signals from all speakers.
[MULTI ST.] However, sound may not be output from certain speakers
depending on the speaker settings.
If you connect a sub woofer
This receiver will generate a low frequency
signal for output to the sub woofer when there
is no LFE signal, which is a low-pass sound
effect output from a sub woofer to a 2 channel
signal.
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Note
This function does not work when
ANALOG DIRECT is selected.
signals with a sampling frequency of more than
48 kHz is input.
41us