Not able to communicate my DAW (Reaper) and Matlab using UDP

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David Montalbán Caamaño
回答： Sanjana 2023-8-25
Eventhough I am following the steps as is explained here: Communicate Between a DAW and MATLAB Using UDP I am not able to even make the UDPSender plugin of the example work. I think that my problem is on step 2, as i am working on macOS and don't really know how to set the run-time library path. ¿Is there any extra configuration that I am missing?
Thanks.
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David Montalbán Caamaño
David Montalbán Caamaño 2023-6-12
Not really any error, I am setting the run-time library in my terminal and then opening Reaper from the same command terminal. Then I add the UDPSender VST in the channel 1 of the mixer and i drop and play an audio track. After that i am running the HelperUDPPluginReceiver but nothing happens, it just stops after a few seconds but no spectrum analyzer appears.
David Montalbán Caamaño
David Montalbán Caamaño 2023-6-16
I checked with Wireshark to see if there is any UDP traffic through the 20000 port when de UDPSender plugin is being used, but nothing is send or received.

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回答（1 个）

Sanjana
Sanjana 2023-8-25
Hi David,
I understand that you are facing an issue with setting up the “Run-Time Library Path” on macOS System.
According to step 2 in the documentation of the example, you can set the “Run-Time Library Path” on macOS Systems by adding the following command in a MATLAB “startup script”.
setenv DYLD_LIBRARY_PATH matlabroot/bin/maci64:matlabroot/sys/os/maci64
Please refer to the following link, for writing a user-defined MATLAB “startup script”,
https://www.mathworks.com/help/matlab/ref/startup.html
Please refer to the following link, for another approach using the “. plist” file to set the environment variables on macOS Systems,
https://www.mathworks.com/matlabcentral/answers/170268-how-do-i-set-environment-variables-on-mac-os-x
Hope this helps!
Regards,
Sanjana

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