Axia Analog Node Manual de usuario descargar pdf (Pagina 20)

3: Advanced Programming • 12

Version 2.0, February, 2007

the Synchronous mode turns off sample rate conver-

sion thereby reducing the delay at the input by ap

proximately 3 msec. Primarily useful for use with

digital microphones or for purist applications.

The Conﬁgure Destinations (Local Out-

puts) Page

The page permits entering information related to this

node’s local outputs. For example these can be named,

and for each you can assign a Livewire stream from the

network to be output.

The Sources screen for the 8x8 Analog and 8x8 AES

nodes are slightly different. The Analog 8x8 Node Des-

tinations screen is shown below:

Destination Name

This is the name used to identify this destination (lo

cal output) within the Livewire network. Destination

names are primarily used by Router software such as

Axia Pathﬁnder PC.

Destination Channel

These are Livewire channels to be output from each

local output. If the channel to be output is not yet avail-

able on the network, you can enter the channel number

here. In the usual case you can click on the choose chan

nel button to the right of this ﬁeld, and the following

Select Source screen will be displayed, see below.

You can now click on the name or channel number

of the desired source to assign it to this Destination (lo-

cal output). If a Livestream (e.g. a low delay stream) is

available this will be used, otherwise a Standard Stream

will be used.

Destination Type

There are four choices for this setting. Usually you

will use From Source (Livestream) for delay sensitive

audio (such as microphones or headphone feeds) or

From Source (Standard Stream) for non-delay sensitive

cases.

You will recall from the Introduction to Livewire;

System Design Reference & Primer manual that Livewire

permits special bi-directional streams for use with cases

where a source and destination are associated, such as a

codec or hybrid. The return feed

to such devices is usually a mix-

minus (clear feed) generated by a

mixer or mix engine fed back to

the device that is the primary au-

dio source (and usually the name

of the stream in question). In ef

fect you have thus created a bi-di

rectional Livewire channel with a

single channel number.

What does this all mean in

practice? If the destination is a

codec or hybrid you’ll set the Des-

tination Type to To Source and use

the same Channel number as the

stream representing the Codec or

Hybrids output (the caller or far

end codec audio).

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