404 Hog 4 Operations Manual
22.5 OSC Over WiFi
Sending and receiving OSC over WIFI is possible by Hog 4 OS through the use of 3rd party
wireless routers, however, High End Systems does not recommend using OSC over Wifi for
critical show tasks for several reasons:
Reliability : Some mobile OSC software applications such as TouchOSC only support
UDP communications which do not include error-checking, and allow for out-of-order
packet communication. This means that Hog 4 OS cannot verify that OSC messages
sent by the console will be received properly. This out-of-order receipt of information
can cause severe performance issues.
Interference: Wireless routers that operate in the 2.4 GHz radio spectrum are subject
to large amounts of traffic due to the popularity of the 2.4 GHz radio band for consumer
wireless devices. The spacing of the communication channels used within the 2.4 GHz
spectrum is very narrow. Therefore, in cases where OSC over WiFi must be used, High
End Systems recommends profiling the wireless space to ensure minimal channel
overlap, using modern wireless devices that support 5 GHz 802.11 AC (or better)
wireless specification, and other wireless technologies that minimize channel overlap
to improve quality of service (QoS).
Multi-Cast Routing Challenges: The HogNet network (in which the OSC messages
are integrated) utilizes multi-cast network traffic for communication between consoles
and DPs which can present a significant challenge to wireless router CPUs. It is best
to avoid low cost / low spec routers that may be overwhelmed with this amount of
traffic.
High End Systems cannot guarantee the performance of UDP based wireless OSC
messaging systems due technical factors inherent to UDP. If a WiFi based OSC setup is
required, it should be well-tested before being trusted for a live show environment. In all
cases, wired connections are preferred.
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