I am looking for a proper and recommended device to change musical tuning in the fly.
Let's say that I want some kind of music corrector connected to my home sound system and re-tune music playing at my home from
440 hz into
432 hz or
Is there any good solution to do that?
What is the name of this kind of device and where to buy it?
I know that I can use some software (for example Audacity) to change music frequency but I don't want to do that manually - I want to do that with some device connected to TV, speakers, etc..
Thank you for all you answers.