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 417 hz
.
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.