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17
Customising the 861
Reference Digital
Surround Controller
Changing the DSP parameters
Each DSP preset provides a series of parameters that
you can vary to customise the behaviour of the preset
to your specific requirements. For example, most
presets provide Balance and Depth parameters to
allow you to alter the characteristics of the sound.
For each of the built-in DSP presets these parameters
are set to standard values, designed to give the best
sound in typical listening conditions and with most
source materials. Each time you select a different DSP
preset the parameters are reset to these standard
values, even if you have previously altered them.
You can save the changes you have made to one or
more DSP parameters in place of the original DSP
preset. Alternatively you can create a new user-defined
DSP preset with a name of your choice. User-defined
presets appear in the list of DSP presets after the
built-in ones. For more information about doing this see
Defining your own presets
, page 25.
Standard parameters
All DSP presets (except Mono, Stereo, and Direct)
provide the following standard parameters:
Parameter Range Default What it changes
Treble* -10dB to +10dB +0.0dB The slope of the frequency response.
Bass* -5dB to +5dB +0.0dB The bass response.
Phase* + or - + The absolute phase.
Axis† -2 to +3 -1 The vertical balance.
Balance <10 to 10> <0> The L-R balance.
HS Out?* Y or N Y
Select Y for high-rate audio, upsampled if necessary. Select N for
standard-rate audio, downsampled if necessary.
Centre -3.0dB to +3.0dB +0.0dB The level of the centre.
Depth -2.5ms to +5ms +0.0ms The delay of the centre.
Rear -30dB to +10dB +0dB The level of the rears.
Sides -30dB to +10dB +0dB The level of the sides.
R Delay 0ms to 30ms Varies The delay of the rears.
S Delay 0ms to 30ms Varies The delay of the sides.
LipSync 0ms to 50ms 0ms The sync. delay.
RC As defined Bypassed
The Room Correction profile, or Bypassed for no room correction
* These parameters apply to all DSP presets.
† Axis is only available with Meridian DSP loudspeakers.
Individual DSP presets provide additional parameters, to allow you to adjust specific features provided by that
preset. For full details refer to
DSP presets
, page 27.
Note: Parameters not relevant to your configuration, such as Sides in a five-speaker system, are omitted from
the sequence of menus.