At 19:55 17-03-16, alan.va...@talktalk.net wrote: > >Am I correct in thinking that patents expire after 10 years or so, >after which its a free-for-all?
Ten years is a low figure. But I believe the original Ambisonic/Soundfield patents are no longer valid.
_______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, edit account or options, view archives and so on.