4 - The PatchMix DSP Mixer
The Session
E-MU Digital Audio System
33
I/O Settings
You can set the level (-10dBV or +4 dBu) for each pair of analog outputs and the input
gain setting for each pair of analog inputs.
An output setting of +4 provides the most output and is compatible with professional
audio gear. Balanced output cables provide a +6dB hotter signal than unbalanced cables
when used with balanced inputs.
Do NOT use balanced cables unless your other gear
has balanced inputs.
See
“Cables - balanced or unbalanced?”
in the Appendix for more
information.
An input setting of -10 is compatible with consumer audio gear and works best with low
level signals. (-10dBV is approximately 12dB lower than +4dBu.) Choose the setting that
allows you to send or receive a full scale signal without clipping.
Setting correct input and output levels is important!
You can measure the level of an
input by inserting a meter into the first effect location in the strip. Adjust your external
equipment outputs for the optimum signal level. See
“To Set the Input Levels of a Strip”
for details.
f
Input too weak?
Use -10 Input setting.
Output too weak?
Use +4 Output setting
Consumer
Headroom
Headroom
Professional
+20 dBu
+8 dBu
+ 6 dBV
+4 dBu
+ 2 dBV
-8 dBu
=
=
=
-10 dBV
{
}
Clipping -->
<-- Clipping
(balanced)
(unbalanced)
Comparison of -10dBV & +4dBu Signal Levels
0 dBV = 1V RMS 0dBu = .777V RMS
Output Level
Settings
Input Level
Settings
E-MU 1010
Optical
Output Select
E-MU 1010
Optical Input
Select
S/PDIF
Output
Format Select
Summary of Contents for 1212M
Page 1: ...1820 1820 Owner s Manual Owner s Manual ...
Page 8: ...8 E MU 1820M 1820 1212M PCI Digital Audio System ...
Page 54: ...4 The PatchMix DSP Mixer Main Section 54 Creative Professional ...
Page 110: ...5 Effects E MU E Wire VST 110 Creative Professional ...
Page 116: ...6 Using High Sample Rates Overview 116 Creative Professional ...
Page 138: ...7 Appendix Internet References 138 Creative Professional ...
