[cma-l] Remote Contribution Infrastructure

[Callum McLean]

Very true - will probably come in handy in the future to have a SIP-
based system at the station end, just so we can perhaps build some
smaller kits to be able to run out-and-about with that we can easily
downlink from at the station end...

All food for thought!

What we're going for at the minute though is a kit that's all installed
in a flight case, so we can effectively plug in power and a wired
internet connection and be ready to host a live show remotely for a few
hours at a time, with half-decent quality - that's why we've gone for
the Sonifex PS-PLAY/SEND option: it means we can have everything in one
rack - networking, CDs, desk - and have everything internally cabled,
but still be simple enough for volunteers to be able to set up, given a
well-written guide.

Kit all arrives in the next few days - looking forward to building it!
:D

Cal

On Sun, 2016-10-02 at 16:14 +0100, Marc Steele wrote:
> Hello,
> The other upside of using SIP is that you can mix and match kit. For
> example, in a past life, we combined track mounted Comrex IP codecs
> and softphones in the field to get broadcast quality audio back to
> the studios.
> The thing to watch with using these out and about is indeed the
> quality of the line you can get back. Be prepared to trade bitrate
> for reliability at events and don't bother even trying 3G/4G at
> really big events.
> Regards,
> Marc.
> 
> On 2 Oct 2016 3:34 p.m., "Callum McLean" <mail at callum-mclean.co.uk>
> wrote:
> > I was thinking about the Barix kit, but I didn't get the impression
> > that it was going to be robust enough... 
> > 
> > Good to know that other people have used the PS-kit successfully -
> > and
> > cheers for the heads-up about potentially high latency in the MP3
> > format! Was hoping not to go down the MP3 route in any case, but
> > still
> > good to know...
> > 
> > Good shout about using SIP to negotiate the connection - will look
> > into
> > it!
> > 
> > Has anyone used this sort of kit in a flyaway environment - i.e.
> > not in
> > installations? Typically, this is the sort of thing where most
> > people
> > might use a) an ISDN line; b) a flyaway sat connection; c) a bonded
> > 4G
> > link. We *were* going to go down the multiple-carrier bonded 4G
> > route,
> > until the cost just became prohibitive for what we want to achieve.
> > 
> > Also, to answer Iain's question, we're only using this over the
> > public
> > internet - the plan is to require the venue hosting the OB to
> > provide
> > us with a solid, wired internet connection - protected within their
> > own
> > networking infrastructure, where possible, and then do everything
> > we
> > can to keep latency and bandwidth down whilst retaining audio
> > quality.
> > The only downside with the Sonifex kit is that they don't support
> > encoding in Opus :(
> > 
> > Cal McLean
> > 
> > --
> > Station Technician // Halton Community Radio 92.3 FM
> > mail at callum-mclean.co.uk
> > 
> > 
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