Surround Parameter

You can adjust the surround audio sound field effects to match your preferences.

The items (parameters) that can be adjusted depend on the signal being input and the currently set sound mode. For details on the adjustable parameters, see Sound modes and surround parameterslink.

Some setting items cannot be set while playback is stopped. Make the settings during playback.

“Surround Parameter” settings are stored for each sound mode.

Cinema EQ

Gently softens the upper treble range of movie soundtracks to reduce possible harshness and improve clarity.


“Cinema EQ” is used.


“Cinema EQ” is not used.

Loudness Management

This sets whether to output as specified in “Dynamic Compression” or output directly without compressing the dynamic range of audio recorded in the disc.


Outputs are given based on enabling the settings made in “Dynamic Compression” and Dialogue normalization function.


“Dynamic Compression” settings and Dialogue normalization are disabled, and the signals on the disc are output as is.

“Loudness Management” can be set when Dolby Digital, Dolby Digital Plus, Dolby TrueHD and Dolby Atmos signal is input.

Dynamic Compression

Compress dynamic range (difference between loud and soft sounds).


Automatic dynamic range compression on/off control according to source.

Low / Medium / High:

These set the compression level.


Dynamic range compression is always off.

“Dynamic Compression” can be set when Dolby Digital, Dolby Digital Plus, Dolby TrueHD, Dolby Atmos or DTS signal is input.

The default setting is “Off”. When the input signal is the Dolby TrueHD or Dolby Atmos source, the default setting is “Auto”.

“Auto” cannot be set when inputting a DTS signal.

Dialog Control

Adjust the volume of dialog in movies, vocals in music, etc. so these can be heard more easily.

0 – 6 (Default : 0)

This can be set when a DTS:X signal that is compatible with the Dialog Control function is input.

Low Frequency Effects

Adjust the low frequency effects level (LFE).

-10 dB – 0 dB (Default: 0 dB)

For proper playback of the different sources, we recommend setting to the values below.

Dolby Digital sources: 0 dB

DTS movie sources: 0 dB

DTS music sources: -10 dB

Center Spread

Center Spread expands the center channel signal to left and right front speakers to create a wider frontal audio image for the listener. It is optimized and designed primary for playback of stereo music content.


Use “Center Spread”.


Do not use “Center Spread”.

You can set this when sound mode is “Dolby Surround”.

DTS Neural:X

DTS Neural:X Expands the non-object based audio signals and optimizes them for your speaker configuration.


Use “DTS Neural:X”.


Do not use “DTS Neural:X”.

You can set this when sound mode is “DTS:X” or “DTS:X MSTR”.

Delay Time

Adjust the audio delay time against video to extend the sound field image.

0 ms – 300 ms (Default: 30 ms)

You can set this when the sound mode is “Matrix”.

Effect Level

Adjust the sound effect level of the current sound mode.

1 – 15 (Default: 10)

Set to a lower level if the positioning and sense of phase of the surround signals seems unnatural.

Room Size

Determine size of acoustic environment.


Simulate acoustics of a small room.

Medium small:

Simulate acoustics of a medium-small room.


Simulate acoustics of a medium room.

Medium large:

Simulate acoustics of a medium-large room.


Simulate acoustics of a large room.

“Room Size” does not indicate the size of the room in which sources are played.


Turn subwoofer output on and off.


The subwoofer is used.


The subwoofer is not used.

You can set this when the sound mode is “Direct” or “Stereo” and in the menu “Subwoofer Mode” is set to “LFE+Main”. link

Set Defaults

The “Surround Parameter” settings are returned to the default settings.

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