sorry i'm late
Thank you for your reply and wish you every success ....

I have a question ... Is it possible for one person to design this program, even after 20 years?

Do you require me to study one of the languages of programming? Or algorithms?
Do I need to study sound engineering? Artificial intelligence? Compared to audio?

Please if you know the answer, I hope that you get me what should I do?

What is the first step in the work?

My thanks and gratitude to you