Tascam GigaStudio - Manual (Page 168)

168 TASCAM GigaEditor 4 Manual
Dynamic Expression Filter (DEF)
Th e Dynamic Expression Filter (DEF) provides a phase corrected, 7
th order, morphing filter for adding
expressiveness before and after sustaining note-on events. Th is filter can accurately and continuously
morph frequency responses of velocity dynamics even after note-on events have occurred. Th e filter is
driven by either a standard midi continuous controller such as the Mod Wheel, note velocity, a filter
envelope, or a combination of all three. Th e morphing response coefficients can be unique for each note
region and sub-region, making it possible to create extremely detailed filter profiles. In other words, the
DEF can make a sample sound as if it were played at different intensities, allowing for real-time crescendos
and diminuendos of a sustaining note.
Note: the DEF works with 24-bit samples only
Some of the DEF settings, including enabling and disabling the filter, are defined globally for an instrument.
Th ese global DEF settings are found on the ‘Dynamic Expression Filter’ tab of the Instrument Properties
dialog. To open the Instrument Properties dialog, right click on a loaded instrument in the Editor and select
‘Properties’.
Th e Global DEF settings are listed below:
Enable Dynamic Expression Filter
This checkbox enables the filter. Th e effect may not be audible immediately depending on the
settings of the filter coefficients in the region articulations (see DEF Filter Coefficients section
below).