Midas PRO1 User Manual

229
PRO1 Live Audio System
Operator Manual
Chapter 28: Delay Compensation
(Latency)
A time delay is induced in a channel’s signal by placing, for example, an insert or GEQ in
its path. This delay affects system latency and can also produce undesirable audio
effects. To overcome this the PRO1 incorporates a system of user-configurable delay
compensation parameters. These are presented to the user in the form of
button-selectable options on the GUI and can be switched on or off to suit the current
application.
Insert compensation
If a channel insert is active, it takes a finite amount of time for the signal to be sent
through an internal or external effect and returned to the channel. Therefore, with no
insert compensation, channels with inserts assigned are delayed more than channels
that don’t have an insert assigned to them. If two correlated signals with different
delays are mixed together, this can produce comb filtering.
Figure 17: Input channel insert compensation
DYN /
PEQ
PEQ /
DYN
Delay
=0ms
External FX
Delay through
DAC & ADC = 1.11 ms
Analog input XLR to
Input Channel Output =2.2 ms
DYN /
PEQ
PEQ /
DYN
Delay
=0ms
Analog input XLR to
Input Channel Output =1.08 ms
DYN /
PEQ
PEQ /
DYN
Delay
= 1.09 ms
Analog input XLR to
Input Channel Output =2.2 ms
Input Channel with
external Insert
Input Channel no Insert &
no compensation
Input Channel without Insert &
with compensation
DYN /
PEQ
PEQ /
DYN
Delay
= 0.33ms
Internal FX
Delay through
Internal FX = 0.7 ms
Analog input XLR to
Input Channel Output =2.2 ms
Input Channel with
Internal Insert & with
compensation
Delay through
DAC & ADC = 0.84 ms
Analog input XLR to
Input Channel Direct
Output = 1.79 ms
Analog input XLR to
Input Channel Direct
Output = 0.95 ms
Analog input XLR to
Input Channel Direct
Output = 1.79 ms
Delay through
Internal FX = 0.58 ms
Analog input XLR to
Input Channel Direct
Output = 2.2 ms
Delay
= 0.84 ms
Delay
= 0.26 ms

Midas PRO1 Specifications

General

Brand	Midas
Model	PRO1
Category	Stereo System
Language	English