Priority Levels; Particular Mode Of Level 2; Gpio; Gpi - Digigram PYKO-out User Manual

Priority levels

With the 'Play-out' firmware (default factory setting) there are three priority levels on the PYKO-out stereo
output. These three levels are accessible through the web pages.
•
A stream sent on level '1' will be played with the highest priority. Therefore, it is recommended to
assign the audio streams to the level '2'to let level '1' available for a stream coming from an alarm
system.
•
In case the level '2' stream disappears, PYKO-out will play a level '3' stream. As soon as the level '2'
stream(s) is (are) available again, PYKO-out switches back to this level.
Note: Certain functionalities such as for example the 'Mute' are not available at level '1''.
These priority levels do not exist in EtherSound mode.

Particular mode of level 2

•
If you use PYKO-out with Audio Manager, the stream coming from Audio Manager will be
automatically assigned to level '2'.
•
It is possible from Audio Manager (or any other software featuring this functionality) to send several
streams to level '2' of PYKO-out, provided that the port numbers are different.
That makes it possible to change the stream being listened to by switching either by GPI or by the
web page to the following stream.
Example: Audio Manager sends towards PYKO-out (i.e. towards same IP address) 32 different playlists (thus
on 32 consecutive ports). By either html page or GPI it is possible to pass to the following (port n+2)
or to the preceding stream (port n-2)

GPIO

PYKO-out is delivered with four GPIs and four GPOs on terminal block connectors; the counterparts are
provided. For details see Appendix D.

GPI

The PYKO-out GPIs are compatible TTL 5 V.
A GPI must maintain its state for at least 20 ms.
The GPIs can have either local action or a distant action by TCP tunneling.
For the local actions, the user can:
•
choose whether it will take place on rising or falling edge
•
modify the output volume + or –
•
mute the output
•
listen to the following or preceding level '2' RTP stream
For the TCP tunneling:
•
the changes of a GPI state are transmitted through TCP if an application is connected. This
information is received either by Audio Manager or by another application, but it cannot be received
directly by another PYKO-out.
•
TCP connection is required by Audio Manager (PYKO-out is used as server). To establish the
connection, the listening port has to be configured by html page.
•
the overall latency of the GPI signal transfer via Audio Manager to the destination GPO is inferior to
100 ms.
Professional IP
PYKO-out
Audio Endpoint
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