This isn't about copyright though- it is about the "right to publicity", which is distinct from copyright. edit: I just noticed in the article the RIAA mentio

This isn't about copyright though- it is about the "right to publicity", which is distinct from copyright. edit: I just noticed in the article the RIAA mentions both copyright and the right to publicity. So perhaps the site in question violates copyright in the original recordings. My guess would be if the person was listening to a recording they had a right to and using this tech, it would not be a copyright infringement, but if they are transforming a recording and redistributing it, it would be. But if this site is doing any distribution, it might itself be found infringing.