User manual

User Manual : Creating and Configuring Mixers

User Manual

Creating and Configuring Mixers

If one of the numerous mixer presets does not quite suit your application it is simple to modify an exist-

ing mixer, create one using the Mixer Wizard or design one from scratch. The Wizard can be started

from an existing mixer by right-clicking anywhere on the mixer surface and selecting Mixer > Settings >

Wizard... Please see also: Mixer Wizard on page 41

I/O Busses Explained

The total number of available output busses, regardless of the number of Mykerinos cards, is 64. The

maximum number of inputs to Pyramix is also 64. However, it is perfectly possible, and permissible, to

have more than 64 physical inputs and outputs connected to a Pyramix system. The PS3 Control

Panel Application acts as a router to assign physical inputs and outputs to Pyramix logical inputs and

outputs. For example: a system containing two Mykerinos boards, one with a MADI daughterboard, one

with an AES/EBU daughterboard has a total of 56 inputs and outputs on the MADI board (64 if MADI X

is used) plus 24 channels of AES/EBU. Possible total 88. Any 64 of these may be routed to Pyramix

inputs and any 64 Pyramix outputs (less the number of assigned Internal Return Busses; see below),

can be routed to physical outputs.

Internal Return Busses

Some of the time slots on the HDTDM bus can be reserved to convey Aux or Master Output Busses

back to input strips. In effect, these are internal send/return paths. To change the number of available

Internal Return Busses, close Pyramix (if open) and launch the VS3 Control Panel Application. The

number of Internal Return Busses can be set using the drop-down list box on the right of the screen.

Click on the OK button to memorize the setting and exit.

The number of Internal Return Busses you assign here will be available as possible channel strip

sources in the mixer.

Mixer Delay Compensation

All digital processing takes a finite amount of time. When Internal Return Busses are used to route

Aux or Master output busses back into channel inputs (by selecting an Internal Return Bus input

from the routing pop-up for the Aux or Bus output, and selecting an Internal Return Bus output as the

return channel input) all other busses not so routed must be delayed if the Mixer is to be ‘time-aligned’

I.e. If a signal is fed to two inputs, the first feeding the Main Output direct and the second routed back to

an input via (say) an Aux bus with the return input strip routed to the Main Output, then the second will

be delayed with respect to the first. Selecting Settings > Enable Delay Compensation from the mixer

context pop-up menu will automatically ensure both signals remain in sync by delaying the signals

directly routed to the Main Output by an amount equivalent to the delay introduced in the second path.

Input Strip Mode

In order for Pyramix to calculate the required delay you have to tell it which bus is the source for the

Internal Return Bus. Clicking on Input at the bottom of the strip, above the XLR icon, pops-up a list of all

the output busses and Input. Input is the default and means the strip is fed from a physical input and no

delay compensation is required. If any bus is ticked and Automatic Delay Compensation is turned on,

Pyramix calculates the required delay and applies it to all Output busses not feeding an internal return

bus.

Delay vs Delay Compensation

When the Input Strip Mode is set to Input the delay setting affects the only the delay on the strip’s sig-

nal. When {any Bus name} Return is selected as the Input Strip Mode the delay setting affects the

delay on all other signals for alignment.