[Noise Canceling Headphone]

      Today, 07:00 AM
Good day to everyone
im a newbie here
and i just want to ask on how to
make a Noise canceling Headphone
that is not too expensive
Im going to use it in my project

My project is to make a a hearing test device
that does not need an assistance of a specialist/doctor
Based on my research, doctors used a sound proof room
to avoid noise interference
and my idea is to make a headphone that can eliminate noise

I also want to ask if you know programs like MatLab
that produces a sound with an accurate frequency
that is not PC based and can be used without PC

I dont know if i could use a micro controller