11.0

EFFECTS MENU 489
Grid: The grid can be switched on and off.
Curve numbers: Here the number of curves that are to be displayed can be set.
Filter transition
There are three different modes available for dynamic filtering:
Direct: Here a simple fade is made directly between two curves.
Move / Direct: Here, both curves are faded, but the start curve is to the side, that is, it is
moved onto the frequency axis. For example, if you have set a band pass for the start
curve, the time of the mid frequency changes (filter sweep). The corresponding high value
of the start and end curve specifies the extent of the curve move. If you are working in
"Filter" draw mode, you should edit the red curve first. If the entire filter curve is set to 0 dB,
a higher value will not be available.
Move: This method can be used to move the start filter curve. Once again, the
corresponding high value of the start and end curve specifies the extent of the curve move.
The second curve is used for specifying the "end point" of the move. Otherwise, it doesn't
have any influence on the result.
Rate: This parameter affects the analysis and filtering processes equally. Here, you can set
how many individual analysis frequencies / filter bands should be available, whereby the
number of filter bands corresponds to exactly half of the value of the "Rate" parameter. The
higher the rate, the longer the processing time needed – by ca. 5% / level.
FFT Filter – The right settings
Frequency analysis
A higher rate is required for sufficient precision in the low-frequency ranges (from 8192).
The precision of the analysis in Hz at a sample rate of 44.1 kHz can be found in the table.
Resolution Precision in Hz
256 172
512 86
1024 43
2048 21.5
4096 10.7
8192 5.3
16384 2.7
32768 1.35
Filter
Here you need a high rate (8192) only for the lowest frequency ranges or for precise fading
out of harmonics. For all applications, the settings 1024 or 2048 are sufficient. Values
smaller than 1024 are rarely sensible.
Notes: