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I'm running Processing 3.3.5 successfully in Ubuntu 16.04, and have installed the Sound Library. Unfortunately, none of the example scripts I've run make any sound. I know the sound card is working because lots of other programs on my machine make noises.
I used the terminal to install the packages recommended at https://github.com/processing/processing-sound using the standard
sudo apt-get install prompts.
I have not however installed the recomended 'openjdk-7-jdk'. When attempting to do so using the same prompts I got this string returned:
Reading package lists... Done Building dependency tree Reading state information... Done Package openjdk-7-jdk is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source E: Package 'openjdk-7-jdk' has no installation candidate
I'm not sure this is the source of the issue or not. If anyone has any tips or suggestions, thanks!