Meridian Unplugged - Powered by MrTechGuy.co.uk Forums Discussion Meridian - Systems virtualMSR (vMSR) iPad App for Meridian

Hi Ian,

The Managed Comms adds processing to the returned RS232 from the Meridian equipment.
If it is set to 'off' then the vMSR feedback display will show exactly what is output from the product connected.
In development it was found that this can sometimes give spurious or unexpected behaviour.

I'm not going into too much detail here, but a couple of examples:

Particularly when ramping up or down the volume, as the Meridian also echoes the input command, these input commands can become mixed in with the response. This manifests itself as occasional flashes of unwanted text in the feedback box.
The Managed Comms handler filters out this unwanted response to make the feedback display more persistent and fluid.

Another good of example of Managed Comms is the '0' conversion.
The Meridian 800 series front panel display drivers by default show all zeros as 'slashes zeros'. Meridian didn't like this effect and so changed all zeros to Capital O's before they are sent to the display, so removing the slashes in the zeros.
However this change also made its way through to the RS232 port, so vMSR would display all zeros as Capital Os
The Managed Comms changes these back to zeros in such places as Bass, Treble, Lipsync, Volume etc.
Interestingly we have noticed that Meridian appear to have addressed the volume output in V8.0 firmware I think?

As 500 series and DSP speakers don't have the same form of RS232 output as G and 800 series, the Managed Comms setting is best left off.

Cheers,

Rick