It is similar: The Carver C-9 is cancelling one occurence of cross-talk by mixing in to each channel a delayed inverted copy of the other channel, while the RACE algorithm cancels the following cross-talk occurences recursively because the mixed delayed inverted signals must also be cancelled...
Le 24 février 2011, Robert Greene a écrit : > In detail, I think, yes it is different. > It is designed for a certain angle and distance > which are different at least from RGs stereo dipole > where the speakers are close together in front of the listener. > But I do not see any reason why the whole thing could > not be easily programmed up. After all, any analogue > (determanistic) process can be digitally modeled > as accurately as one wishes. > > I am unaware whether anyone has done it. > It is fun to play the Sonic Hologram--I pull mine > out every one in a while, > > Robert > > On Thu, 24 Feb 2011, Peter Lennox wrote: > > Is it so different from Ralph Glasgal's ambiophonic cross-talk > > cancelling? 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 > > w: http://sparg.derby.ac.uk/SPARG/Staff_PLX.asp > > ________________________________________ > > From: sursound-boun...@music.vt.edu [sursound-boun...@music.vt.edu] On > > Behalf Of Michael Graves [mgra...@mstvp.com] Sent: 24 February 2011 > > 22:16 > > To: Surround Sound discussion group > > Subject: Re: [Sursound] cross-talk cancellation used in binaural sound > > reproduction > > > > I have a Carver C-9 Sonic Hologram unit that I bought on Ebay for about > > $80. It's a nice little demo piece, but limited in its application. > > > > That said, it's biggest problem is noise. Of course it's all analogue > > and built around -10 dbm levels. And all those capacitors are now very > > old. > > > > Has this sort of thing evern been implemented in code, like a VST > > plug-in? Ideally it would be nice to have it available within the > > plug-in architecture of the Logitech Squeezeserver that we use for > > casual audio playback. There are even limited implementations of room > > correction done in that manner. > > > > Michael > > > > On Thu, 24 Feb 2011 10:15:40 -0800 (PST), Robert Greene wrote: > >> I suppose that someone ought to mention-so I shall-- > >> the Carver Sonic Hologram. > >> You can still find the devices around(they were > >> crosstalk cancellation processors). > >> They work really well, if you do not > >> mind sitting really still in one spot > >> (which of course you are going to have > >> to do for any such system with only two speakers). > >> And the nice thing is the Sonic Hologram sounds good- > >> it does minimal damage to the music. > >> > >> It is interesting--sort of tells you where the industry was > >> and still is on surround and so on--that Martin Colloms > >> writing about the Sonic Hologram in HiFiNews > >> says that it definitely makes stereo better [and potentially > >> much better] but that it is just too much trouble... > >> > >> Robert > >> > >> _______________________________________________ > >> Sursound mailing list > >> Sursound@music.vt.edu > >> https://mail.music.vt.edu/mailman/listinfo/sursound > > > > -- > > Michael Graves > > mgraves<at>mstvp.com > > http://www.mgraves.org > > o713-861-4005 > > c713-201-1262 > > sip:mgra...@mstvp.onsip.com > > skype mjgraves > > Twitter mjgraves > > > > > > > > _______________________________________________ > > 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. The policy is > > available here: http://www.derby.ac.uk/LIS/Email-Policy > > _______________________________________________ > > Sursound mailing list > > Sursound@music.vt.edu > > https://mail.music.vt.edu/mailman/listinfo/sursound > > _______________________________________________ > Sursound mailing list > Sursound@music.vt.edu > https://mail.music.vt.edu/mailman/listinfo/sursound -- Marc _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
