It's not going to make it any worse. They just need to reduce noise levels enough to make the noise cancellation more effective, so they could keep the open booth + headphone setup instead of a soundbooth.
They also add some pink noise from the air and motors which might help.
In any case, just an idea, data on their effectiveness seems hard to find.
They also add some pink noise from the air and motors which might help.
In any case, just an idea, data on their effectiveness seems hard to find.