Hey Mike,

thanks for the response.

On Fri, Apr 17, 2020 at 10:35 PM Mike Phillips <mikephillips@coastfm.co.uk> wrote:

On 18/04/2020 07:59, drew Roberts wrote:
> we are experimenting with doing remote voice tracking for Rivendell.
>

snip

>
> Does openob keep statistics on itself and its links in the redis
> server and if so, can we get reports of the situation?
Lots of stuff in there... :-)

I know... ~;-)

If you have a spare PC it maybe worth installing Linux and openob on it
and use that instead of the RPI, it would remove the pi as being the issue.

I am considering it, but I went the whole way and too it to a better box, better UPS, better internet connectivity, all in one so I should be good on that front. My thought is that if that nook next to our Riv box is not wired to the riv box properly for testing now, I will look the obrx on that nook to the obtx on it in jack and send the audio right back to where it came from for latency evaluation. This leaves some latency untested but that same latency would also exist for the linphone option.

If I have to I will set up an old pc and replace the pi. I have enough old pcs, I am not sure any of them are new enough though.

We run RadioDJ (about 7 now with home based presenters) 3 in studio and
4 OB, all the OB's are connected via openvpn and running openob to send
audio back to the studio.
One crappy old box does the receiving (that worries me a bit)
Also have an openob as an STL to our remote 2nd FM transmitter all of
this is running on £35-£50 old sff desktop hardware and a bloody great
HP Proliant DL360 G7

It just sits there and does its thing, we do get the occasional glitch
but I put that down to home internet connection...

Our remote presenter path looks like

W10 - RadioDJ
Mixer - to mix audio path
Linux - openob tx
Inet - to studio
Linux - openob rx
Kramer audio switch - allows remote switching of audio source
compressor
Audio splitter

Is there anywhere in your chain where the home DJ is listening to the studio audio, sending vocals back to the studio where it is mixed with the audio the DJ was "talking to" and then goes out over the air. That is basically the situation I am concerned with. With some leeway if I restrict the use to remote voice tracking but it would be nice to use this setup for live remotes and even shows if the latency can get down enough. (It is early and I am tired and may not be thinking clearly right now and may be wishing for the impossible. Need to think more about it.)

* To local FM transmitter via 2 leg wifi hop over sonifex audio
streamer (would use openob but these were already there)
* To Bloody great Proliant that does silence detection, icecast,
openob tx STL and ROT

What is this bit below about? Can you give a bit more info on this use?

* To local studio monitors

inet - to remote FM trx and online stream
wifi link from my house to transmission mast 2 miles away
Linux - openob rx
RDS encoder
FM transmitter

Inet stream has about 30 second delay, FM is hardly noticeable when we
swap studios

Basic diagnose... break things into smaller chunks and see where the
problem lies.
Also have jack_capture and njconnect installed on the openob nodes so
that I can see what is happening

IIRC, I did not know about njconnect . Are you getting it from:

https://sourceforge.net/projects/njconnect/
https://github.com/radiganm/njconnect

Or somewhere else?

--
Mike Phillips
Coast FM.n email to openob-users-leave@lists.talkunafraid.co.uk

Thanks for the response, all the best,

drew
--

Enjoy the Paradise Island Cam playing

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