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I’m thinking of writing a C++ application for windows which would need to filter all sound output from all applications and change it.
I only have moderate experience with C++ and programming for windows and I realise that it will be a bit of a learning curve.
What sound apis would be recommended to accomplish this? If anyone has other advice about going about this, I would appreciate it!
Thanks
It is my understanding that Windows Vista and later may have ways you can do this, but I am not familiar with it, or if it is even usable for what you need.
Generally, the only way to do this is to create a virtual sound card driver that your applications send their audio data to. From there, you will need a userland application that plays back that audio out of a different sound device.
You can either license an existing virtual sound card driver, or write your own (very difficult).