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Adjusting the time alignment ("Time Alignment")
It is only possible to achieve a clean natural response of the music if the time alignment is adjus-
ted correctly. The program therefore allows sensitive adjustments in increments of 7 mm.
The software provides two different ways of adjusting the time alignment:
•
"Calculate Distance": This mode requires the input of the distance between the loudspeaker
and
•
"Calculate Delay":
The optimum setting is most easily calculated using the "Calculate Distance" mode as follows:
•
Use a tape measure to measure in centimeters the distance between the front left loudspeaker
and your head in your sitting/listening position.
•
Adjust this value using the slide control.
•
Repeat these steps for each of the other channels.
•
The program uses these distances to calculate the required time delay for each of the channels
and displays these values accordingly in "msec". This prevents a delay on the loudspeaker
furthest from the listening position (usually the subwoofer channel), whereas the loudspeaker
closest to the listener usually experiences a delay.
•
It is not necessary to measure/adjust the values as accurately as possible as they merely serve
as initial values for the fine adjustment.
•
Now mute the rear channels and the subwoofer using the "Mute" function.
•
Select a piece of music which preferably consists of only a voice and no accompanying instru-
ments.
•
In small increments, adjust the time alignment of one of the front loudspeakers until you can
hear the voice either directly from the front, or slightly from the right (1 o'clock position). It is
usually only necessary to regulate the time alignment by only a few centimeters to reach the
desired result.
•
Now mute the front channels using the "Mute" function and reactivate the rear channels.
•
Listen to the same piece of music again and adjust the time alignment of the rear channels so
that the voice can be heard from directly behind you, or slightly from the right (5 o'clock positi-
on).
•
Reactivate the front channels (keeping the subwoofer channel muted as before).
•
PP50 DSP: The PP50 DSP also has the option of using the "Additional Delta Delay Front/Rear"
slide control to shift the rear channels backwards until it is almost impossible to hear them or
they no longer have any negative effect on the natural response of the front loudspeaker.
•
It is not usually necessary to adjust the time alignment of the subwoofer following the "tape
measure method". Setting the phase control is particularly effective in this respect.
•
This completes the adjustment of the time alignment.
the ear of the listener. The program uses this to calculate the necessa
ry time delay for each channel.
This mode requires the direct input of the preferred time delay value
if available.
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