My interest is as yours musical. Spectragraphs of frequency show significant energy at 20Hz and below in most forms of music. As soon as Percussion is introduced the level becomes significant. Mono reproduction of sub has many practical benefits in that it reduces the amount of phase cancellation that occurs with multiple speakers which in my profession is a major concern. It would be great to work with more surround sound/ambisonic material but with large audience this becomes impractical. Thanks for the reply though. Jon
On Thursday, April 23, 2015, Richard Lee <rica...@justnet.com.au> wrote: > There is an important reason to maintain full Ambisonic capability to below > 20Hz. > > It is a MUSICAL one. > > Go to a service at a large cathedral with good organ. At the end of the > service, the organist will play something to show off while everyone is > leaving. You can walk around and listen at various positions without > causing offense. > > On SOME pedal notes at SOME positions, you will experience 'pressure in the > head' sensations .. on other notes and positions the experience is 'trouser > flapping' .... Pressure & Velocity nodes in cathedral space > > A mono recording or single "high quality Sub" converts the pleasant > 'trouser flapping' to unpleasant 'pressure in the head'. > > You need at least stereo, preferably at least 4 subs in a classic Ambi > system (and a TetraMic recording) to reproduce these important aspects of > an organ performance. This isn't about LF 'localisation'. It's about > pleasant musical sounds. > > If the desired effect is Bruce Willis blowing up the universe, dinosaur > footsteps or modern music (??), your single "high quality Sub" is > sufficient. You can also achieve the same effect by having someone stand > behind you wielding a blunt instrument at the appropriate moment. > _______________________________________________ > Sursound mailing list > Sursound@music.vt.edu <javascript:;> > https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, > edit account or options, view archives and so on. > -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20150423/986908e3/attachment.html> _______________________________________________ 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.
