Sony STR-DA3400ES - Manual (Page 62)

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STR-DA3400ES
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The Auto Format Direct (A.F.D.) mode allows
you to listen to higher fidelity sound and select
the decoding mode for listening to a 2 channel
stereo sound as multi channel sound.
* Depending on the speaker pattern setting, the appropriate Enhanced Surround mode appears.
Notes
• This function does not work in the following cases.
– The multi channel input is selected.
– DTS-HD signals with a sampling frequency of
more than 48 kHz are being received.
– Dolby TrueHD signals with a sampling
frequency of more than 48 kHz are being
received.
– PCM signals with a sampling frequency of more
than 96 kHz are being received.
– DTS 96/24 signals are being received.
• Neural-THX is activated as a PCM signal when a
sampling frequency of less than 48 kHz, a 2
channel analog signal or Linear PCM signals are
input. The Neural-THX processing will be turned
off automatically when another type of signal is
input. The beginning of the sound may drop out
when the SURROUND processing is turned on/off.
Tips
• You can identify the encoding format of DVD
software, etc., by looking at the logo on the
package.
• Dolby Pro Logic IIx decoding is effective when a
multi channel signal is input.
If you connect a subwoofer
This receiver will generate a low frequency
signal for output to the subwoofer when there
is no LFE signal, which is a low-pass sound
effect output from a subwoofer to a 2 channel
signal. However, the low frequency signal is
not generated for “Neo:6 Cinema” or “Neo:6
Music” when all speakers are set to “LARGE”.
In order to take full advantage of the Dolby
Digital bass redirection circuitry, we
recommend setting the subwoofer’s cut off
frequency as high as possible.
Types of A.F.D. mode
A.F.D. mode Multi channel
audio after
decoding Effect
A.F.D. Auto (Detecting
automatically) Presets the sound as it was recorded/encoded without
adding any surround effects.
Enhanced Surround
Pro Logic II* 5-channel signals Perform Dolby Pro Logic II decoding.
Pro Logic IIx* 7-channel signals Perform Dolby Pro Logic IIx decoding.
Neo:6 Cinema 7-channel signals Perform DTS Neo:6 Cinema mode decoding.
Neo:6 Music 7-channel signals Perform DTS Neo:6 Music mode decoding. This
setting is ideal for normal stereo sources such as CDs.
Neural-THX 7-channel signals Next generation of Neural-THX ® Surround. In
addition to stereo enhancement processing and pure
discrete 5.1 surround sound, now capable for full
360° 7.1 surround sound playback from Neural-
THX
® surround encoded content.
Multi Stereo (Multi Stereo) Outputs 2 channel left/right signals from all speakers.
However, sound may not be output from certain
speakers depending on the speaker settings.