Am I missing something? - for mobile use, wouldn't B-format to binaural be better than UHJ? Dr Peter Lennox
School of Technology, Faculty of Arts, Design and Technology University of Derby, UK e: p.len...@derby.ac.uk t: 01332 593155 ________________________________________ From: sursound-boun...@music.vt.edu [sursound-boun...@music.vt.edu] On Behalf Of Richard Lee [rica...@justnet.com.au] Sent: 30 October 2012 19:51 To: 'Surround Sound discussion group' Subject: Re: [Sursound] Patent application: Data structure for HOA > Unless things have changed a lot, last I checked lossy compression messes up > phase relationships, and that would be an issue for things like UHJ, which as > long as portable stereo players with limited battery life (and thus limited > CPUs), is the only viable, because stereo compatible, distribution format. > At this point in time, not only is most music listened on mobile devices, > most music is even purchased on mobile devices, and that's strictly a stereo > (or maybe binaural) world. Try this simple experiment. Take your favourite Nimbus UHJ CD and rip it using the most evil MP3 encoder you can find .. probably the one built into the latest Windoz Media Player. Do this at 256kB/s and also (shock! horror!) at 128kB/s. Now listen to the resultant files on a mobile device. Then you can pontificate to us on how the musicality has all escaped and no one is going to find these acceptable. You can also rip to a WAV file if your mobile device will play these and compare the MP3s with the 'original'. This is just testing Ronald's assertion about compressed UHJ on stereo mobile devices. I dunno about full UHJ surround decode cos there don't seem to be any good ones in the public domain. PS I expect you to hear ve.eery slight differenes with one MP3 and probably none with the other. I won't insist on Double Blind bla bla but you might find that educational. _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound _____________________________________________________________________ The University of Derby has a published policy regarding email and reserves the right to monitor email traffic. If you believe this email was sent to you in error, please notify the sender and delete this email. Please direct any concerns to info...@derby.ac.uk. _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound