Sound/Beep with C++

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#1

Hi, I am fairly new to programming on c9 and I was wondering if there is a way to make sound using c++ code.
I’ve tried echo command and I’ve tried beep() function and I’ve tried outputting \a character.
None of these work. I was thinking it was because c9 terminal doesn’t work with that but if anyone knows I would love to know as well.

Thank you