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Thus, the one Ethernet cable is used for:
♦ Telephone audio for the softphone, via Livewire.
♦ Livewire audio for the recording of calls.
♦ Transfer of recorded call files from the producer to the studio.
♦ Data messages between the PC and the VX main box for line selection, etc.
♦ Data messages such as call notes and IM between the producer and on-air
studio.
♦ Possibly, database lookup of caller information, such as how many times
they have called, the quality of their contribution, whether they have won any
contests, etc.
♦ Web browsing, email, etc.
This is the power of IP realized. To accomplish this level of functionality with older technolo-
gies would have been impractical.
Console Controllers
Integrating phone line selectors into the studio mixing console is an operator-
pleasing feature that is easy to accomplish in a networked studio. As this is written
in March 2011, the following consoles have VX-compatible call control modules
available.
♦ Axia Element Console
♦ Axia IQ Console
3rd-Party Producer Applications
The VX uses an open protocol for control, which permits non-Telos software applica-
tions to be used in place of, or to augment, the Telos VX Producer application.
Broadcast Bionics and NeoSoft offer such applications.
The VX system components are linked via a standard Ethernet switch. In Livewire-
enabled studios, this will already be present and no additional switch would be
needed. Facilities that already have a VoIP PBX would also probably have a suitable
switch in place.
The Acoustic Echo Canceller
A new acoustic echo canceller algorithm solves the longstanding problem of
feedback and echo when a loudspeaker-to-microphone acoustic path is required in
the studio, such as when DJs prefer to record calls without using headphones or
when guests need to hear calls without headphones. The AEC in the Telos VX is a
remarkable new development. Its performance is shockingly impressive, permitting
very high loudspeaker volume with no noticeable feedback or return echo. (If you’ve
already experienced the Axia intercom system, you know what we’re talking about…)
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