how to work with sounds in c ++?

Question

I want to know in detail how you can work with sounds and change the frequencies for example in the process of playback ...

Answer 1

I've got to run away for a while but just to say something, I'd start with Beep.

[sudden expansion] If that's not enough, you're probably going to need to interface with OS audio hooks, but "how" depends very much on details.
To give you an example of how your details would be critical, look at how wildly the suggestions here move about:
https://stackoverflow.com/questions/711350/learning-to-work-with-audio-in-c

I'm linking that because that mess may help you find something and ask another question, like "how to program technology X on Linux" -- just please be aware that since we can't test sound here in c++ participation may be very limited.