Kurzweil KDFX, Manual

Page: 52 / 164

Inside KDFX
Output section
3-20
AES/EBU Outputs
The way the AES/EBU outputs in a K2500 with KDFX is somewhat different from the way they
work in a K2500 without KDFX.
The AES/EBU digital output of the K2500 (a single stereo pair) is normally in parallel to output
pair A. It gets whichever signal is assigned to that pair.
However, if you have the Sampling Option installed in your K2500, you have more options.
These options are determined on the SampleMode pageÑfrom the Program or Setup mode,
press the Ò
Sample Ó soft button.
If the Ò Out Ó parameter on the SampleMode page (which you can only see when the Ò Input Ó
switch is set to ÒDigitalÓ) is set to ÒDirÓ (Direct), then the AES/EBU output behaves normally
and is in parallel to output A.
However, when the Out parameter is set to ÒA/DÓ, then the AES/EBU output mirrors
whatever signal is coming into the samplerÕs analog input. This, in turn, is set by the Ò
SrcÓ
parameter in Analog input mode . (In Digital input mode, the ÒSrcÓ parameter has a different
function.) If this parameter is set to ÒIntÓ, then the signal from the K2500Õs Mix output is being
fed back into the samplerÑand thus the AES/EBU outputs will carry the identical signal that the
analog Mix outputs are carrying. This is useful when you want to be able to use the Internal
effects processor with the digital outputs. More on this in Chapter 6.
This feature is also helpful when re-sampling the K2500, that is, sampling its outputs to create a
new, more complex sample. If the Out parameter is set to ÒDirÓ, then re-sampling will be very
quiet and clean, but only the output-A signal will be re-sampled. If it is set to ÒA/DÓ, then the
re-sampled sound will consist of all of the analog outputs, plus the Internal effects processor,
and the potential for noise build-up is higher.
If the Analog Src parameter is set to ÒExtÓ, then the signal that appears at the AES/EBU output
is the signal coming into the K2500Õs external analog inputs , and the K2500 is acting as a very
fancy, very high-quality A/D convertor.
The following diagram and table should help you understand the possibilities:
Figure 3-10. AES/EBU output conÞguration.
SampleMode||Samples:18432K||Memory:218K|
Sample:None||||||||||||||||||||||Src:Ext
Input:Digital||Time:5s|||||||||||Out:A/D
internal Effects
processor
AES/EBU output
KDFX output A
Digital
Out
Dir
A/D
Int
Ext
Analog
Src
K2500 Mix
output
K2500 analog
input