Old 07-29-2014, 04:48 PM   #1
mush
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Default OSC : Udp send works, reaper no reaction

Hi!!

I never used OSC.
I really need help if possible, i spent quite a long time reading forums, webpages, etc, etc and i m stuck.

i use mac osx 10.6.8 with reaper 32bits last version.
i am not very experienced with ethernet systems.

with a microcontroller, i managed to send simple UDP messages to my computer via ethernet connection.

nothing else is sent (i know MAC & IP adresses of the source and destination)
my firewall is not active.

i can see the UDP messages sent using an ethernet monitoring tool called wireshark.

so i decided to send the message "/play 1" to reaper to the right port and adress as configured in reaper settings.
i use the defautOSC pattern config file.

on control surface settings menu, when i open the listen window, i can see the "/play 1" message sent by the microcontroller.

the problem is, it doesn't affect at all reaper, reaper doesn't start to play the song. i tryed with other messages but no reaction.

when i activate "sent to port" in reaper control surface settings, i can't see any messages sent by reaper on ethernet monitoring tool wireshark when i push buttons, hit play button, etc...

questions are :
---------------
do i miss something?
do i need a third part program?
do i need to implement other protocols in my microcontroller like DHCP, MDNS or does UDP protocol is enough??
(i tryed to send ARP messages but reaper stop to receive UDP messages even if the monitoring tool wireshark see it)
if you have any idea, it will be more than welcome!!

thx for the reading,

Yann (i know my english is bad, im french)

Last edited by mush; 07-29-2014 at 04:49 PM. Reason: spelling
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Old 07-30-2014, 11:40 AM   #2
mush
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no idea??
no clue??
am i totally wrong or nobody knows??
please, please!!!
maybe my message was too long.

i forgot to present myself :
i m interested in diy (i managed to build some audio modules and midi devices).
i m trying to build a dedicated control surface for reaper using OSC.
i don't want to use ipad or touchscreens with touchOSC or things like that because i believe that you can have a better feeling with good quality pots than big fingers on a low resolution touchscreen.
so, i manage to make my controler work, i m trying now to communicate with reaper.
i spend quite a few time on this project but i don't know why i m stuck.
so if anybody has few minutes to put me on the right track, i would be more than grateful.

thx!!

yann
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Old 07-31-2014, 08:22 AM   #3
schwa
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Hi mush, you don't need any third party software, what you are doing should work in theory.

My guess for why the messages aren't being interpreted by REAPER is that perhaps you are just sending plaintext. The string "/play 1" is not equivalent to the OSC message "/play" with an integer argument of 1. You can find all of the relevant information here: http://opensoundcontrol.org/spec-1_0
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Old 07-31-2014, 12:40 PM   #4
mush
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Thx schwa!!!

that was exactly the problem.
now, i m able to make reaper react to my messages.
it does play and stop when asked and i am able to change the tempo.
so communication is possible, i now have to program the thing to do more complex and complete control of the daw.
thx again, the best part is coming!!

yann

Last edited by mush; 07-31-2014 at 02:38 PM. Reason: spelling
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