miniDSP Ltd, Hong Kong /
/ Features and specifications subject to change without prior notice
33
you may be happy with the in-room response at higher frequencies, so you can set the frequency region to limit
correction to the modal region (up to 300 Hz, in a typical room).
To alter the region of correction, drag the grey handles on either side of the graph. Note that you can’t drag
these handles over an anchor point, so you may need to move or delete an anchor point that is “in the way.”
5.3.4
Guidelines for target curve design
Care should be taken to create a target curve that works well with your speakers and room, as well as suiting
your personal preferences. Small changes to the target curve can have significant effects on the tonal quality of
the system, so it is important that you experiment with different target curves to find the optimum.
If you initially don’t achieve a satisfactory result, please ensure that you have spread your measurements over a
sufficiently large area and with sufficient variation in height. The following guidelines will help you understand
how to adjust your target curve.
Low-frequency extension and boost
All loudspeakers have a natural low-frequency roll off. Setting the target curve to boost the
region below the speaker’s natural roll off frequency may result in overdriving the speakers,
especially with smaller loudspeakers and depending on your listening habits. As a general rule, a
home theater system should use bass management to direct low frequency content to the
subwoofer.
The auto-target estimates the low-frequency roll-off and curve. You should determine by
listening whether this estimate is suitable for your system, and adjust the target curve
accordingly.
