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 Post subject: MicroMPX over RIST
PostPosted: Tue Jan 20, 2026 12:27 am 

Joined: Sun Jul 07, 2019 4:05 am
Posts: 9
I'd be interested to hear anyone's experiences of using MicroMPX over RIST... I've seen that it's no longer marked as experimental but the documentation seems a bit lacking. Meanwhile, I could do with improving the resilience of our MicroMPX feed against occasional brief fits of packet loss (beyond our control).

I have a few questions - if anyone can answer, I'd be grateful:
  1. In the MicroMPX Decoder, I understand 'Delay' relates to the usual RIST buffer, but what precisely does the 'RIST recovery delay' setting do?
  2. On the Stereo Tool side, am I right in thinking that using RIST renders the 'Send error recovery data every' and 'Number of errror [sic] recovery packets to send' settings irrelevant; or is additional useful MicroMPX-specific error recovery information still present in the RIST stream?
  3. We have two transmitters and two separate MicroMPX decoders. Clocks are kept in sync, but we don't use GPS synchronisation - it doesn't need to be that precise. Will both sites be kept broadly in sync with one another while using RIST, including after the feed to one site has a drop-out, in the same way that MicroMPX does without RIST?

Cheers


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 Post subject: Re: MicroMPX over RIST
PostPosted: Fri Jul 10, 2026 7:11 pm 
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Joined: Mon Mar 17, 2008 1:40 am
Posts: 11522
Sorry, way too late response. RIST seems to make even links with 75% packet loss reliable, so it really helps a lot.

RIST integration has been improved for version 5, which will probably be released in a few days. (Just a few points left on our todo list, plus waiting for test feedback from one customer who has thousands of MicroMPX's on the air).

1. The RIST delay is ADDED to the main delay. To clarify that, in more recent versions, we're adding the RIST delay to the main delay slider value.
2. Yes. Those settings are ignored.
3. You need to make sure that the total Delay settings match. That even works if one uses RIST and the other doesn't.


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