User manual version 1
AV dsp amp
filter design application of what that sampling rate is. In short, leave this
at 48kHz.
The select button opens a file dialogue box witch is not used in this
application.
Work flow
Measurement
Measuring using the DSP unit set to “flat”
Perform impulse response measurements for each driver separately. Save the
entire impulse record truncation can be done later on the filter design
–
program.
Measuring using an external amplifier
A separate amplifier may also be used for measuring the drivers, provided the
amplifier’s output impedance is as low as the DSP unit’s.
Importing response data
Select the tab for the channel you want to import and click select . The filter
“
”
designer expects the impulse response measurement as a text file with one
sample per line.
There is no restriction on the absolute gain of the impulse response data. The
only thing that matters is that the absolute gain be the same for all three
measurements. The filter designer computes a gain offset based on all loaded
responses to centre them collectively on the vertical scale.
Truncating response data
Switch to the impulse or step response graph.
Figure 9
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