VU OSC for a custom control device

[moscardo]

Hi,

I'm working on a Processing sketch which will help me to control more easily sound sources parameters and automation for an octophonic video sonification mix (see attached image).

I'm using OSC to share messages between the sketch and reaper. Till now everything works fine to me, I'm able to control sound sources position (x and y), diffusion and gain programmatically via Processing recording automation on Reaper.

But I would like to have some feedback from Reaper in order to recreate 8 VU meter for each output speaker so to view them directly in Processing.
I've noticed that Reaper actually send messages of this kind with the OSC address of /track/vu or /track/vu/L or R.

But unfortunately these messages seems to be sent only when scrubbing the playhead and are not sent during normal playback.

Is there something I can do to obtain what I want?

Thank you very much for your support

[moscardo]

Hi guys,
does anybody have some experience with Reaper and OSC?
How to send VU meter levels for all the surround channels?
Is there something I can do to get these level? maybe a custom .lua script?

Maybe this isn't the right place to ask such a question?
thank you for your support

[mschnell]

I don't know about Reaper, but a common way is that a "receiver" requests notification for a certain values (e.g. the level meter value of a track) and from that on for some time the "sender" broadcasts this value at any change. The "receiver" needs to send out the request every some seconds to make the "sender" continue informing about it's state.

-Michael