It sounds very interesting. I must admit I have some slight reservations here (I've hear a lot of claims over the years in spatial audio and skepticism is now my default setting its not personal ) but I would like to actually hear this before passing further comments. Do I need a special player to play back two speaker ambiophonics or just to put speakers in the correct position. If I do could I have a link to a player and a two channel ambiophonics recording demo . I did look at your website but neither of these things were immediately obvious - there's a lot of info on there. I saw the demo page and it said demos below but I could only see a list no actual links to sounds.? Maybe my browser. Do All the best Gus
On Friday, 4 October 2019, Ralph Glasgal <glas...@ambiophonics.org> wrote: > There are a whole bunch of links and descriptions of apps from a variety of > vendors you can use to try Ambiophonics. See www.ambiophonics.org I > would > suggest you use two miniDSP boxes to do it rather than just software. If > you use the apps you need to load two copies so you can play 4.0 media. > There are several surround 4.0 recordings made with the Ambiophone or other > more standard mic arrays in the demo tab from Chesky, etc. One advantage > of > the Ambio speaker placement is that with the speakers very close together > in > front and the other pair behind, the pinna function is mostly correct > compared to having speakers in a square or similar. Also Ambio can produce > essentially the full range of ITD up t0 700 microseconds and ILD values of > up to about 10 dB or what you would have in most concert halls. If you use > the BACCH version of XTC loudspeaker binaural you can get the fly buzzing > in > your ear. If you use two additional speakers at the rear, as in > Envelophonics, you can get a better spatial effect from 2.0 recordings like > orchestral LPs and CDs. > > If you are making your own recordings, then try to have an ITD range up to > 700 microseconds for side sound sources and also corresponding ILDs of up > to > 10 dB for the same side sources in the frequency ranges where both values > are audible. For frequencies over about 1500 Hz you just need to see that > you do not introduce things that would look like pinna response functions. > The narrow reproduction angle of the speakers will provide a reasonable > pinna function for the central area and sounds at the far sides do not have > as strong a pinna function since the ear canal is directly exposed at these > angles. Not perfect but a lot better than speakers at 60 degrees. Also if > you use the rear Envelophonics speakers this seems to correct even for this > pinna error at the extreme sides. Basically the trick is to have the brain > receive a consistent pattern of localization cue values, values that don't > contradict one another. > > Ralph > > -----Original Message----- > From: Sursound [mailto:sursound-boun...@music.vt.edu] On Behalf Of > Augustine > Leudar > Sent: Friday, October 04, 2019 11:20 AM > To: Surround Sound discussion group > Subject: Re: [Sursound] AES Convention Demo > > Thanks for the detailed explanation. I can get a fairly convincing full > circle of sound in the horizontal plane with just ordinary amplitude > panning and the correct panning law - in fact I can get fairly convincing > height too using some bespoke techniques I've developed. - I assume you > mean the gaps between the speaker sin the panning are better filled with > your system ? > The proof is in the pudding of course - Can you recommend a good > ambiophonics plugin I could test in the studio, > all the best > Gus > > On Thu, 3 Oct 2019 at 18:10, Ralph Glasgal <glas...@ambiophonics.org> > wrote: > > > Ambiophonics does not use any HRTF filters, filters of any kind, head > > tracking, special speakers, or custom recordings. It is fully recursive > > and > > provides two easy to use adjustments to optimize the crosstalk > cancellation > > or adjust to taste. It is also designed to use narrow speaker angles so > > that the pinna direction finding mechanism is optimized for the central > > localization region. It also provides a full circle of sound in the > > horizontal plane with just four speakers from 4.0 media. Ambiophonics is > > not just about XTC, it also provides envelopment and concert hall > ambience > > options. Transaural, BACCH, Sonic Holography, Panorama Mode, TacT, Polk > > SDA, VMAX, etc. are some past and presently competing technologies. But > at > > the moment there are more readily available Ambiophonics apps and > > components > > installed worldwide than from other sources. Probably this is because > > there > > are no licensing fees, these products are affordable, and they work with > > standard media like LPs, CDs, SACDs, BDs and of course downloads. You > can > > read the AES papers and tutorials at www.ambiophonics.org and there are > > loads of comments and posts on the Facebook Ambiophonics forum and > > LinkedIn. > > But there is no substitute for hearing Ambio yourself. Try one of the > 4.0 > > tracks on the website. > > > > Ralph Glasgal > > > > > > -----Original Message----- > > From: Sursound [mailto:sursound-boun...@music.vt.edu] On Behalf Of > > Augustine > > Leudar > > Sent: Wednesday, October 02, 2019 4:55 PM > > To: Surround Sound discussion group > > Subject: Re: [Sursound] AES Convention Demo > > > > Curious what's the difference between ambiophonics and transaural? They > > both imitate hrtfs (ilds it's etc) and attempt to eliminate crosstalk > > right? > > > > On Wednesday, 2 October 2019, Ralph Glasgal <glas...@ambiophonics.org> > > wrote: > > > > > We are not on the technical tour list this year but we will be here to > > host > > > any who wish to have a personal experience. You can compare surround > > > Ambiophonics to Ambisonics and WFS, see how to use/build an Ambiophone > > > compared to the Soundfield, and learn how to get a full circle of > direct > > > sound in the horizontal plane from standard BD 5.1, Dolby Atmos or > > similar > > > surround media. Call 201-784-0614 or e-mail glas...@ambiophonics.org > if > > > you > > > are interested. We can arrange transportation to 4 Piermont Road, > > > Rockleigh, NJ which is a few miles north of the GW Bridge. > > > > > > Ralph Glasgal > > > www.ambiophonics.org > > > -------------- next part -------------- > > > An HTML attachment was scrubbed... > > > URL: <https://mail.music.vt.edu/mailman/private/sursound/ > > > attachments/20191002/677cf130/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. > > > > > > > > > -- > > Dr. Augustine Leudar > > Artistic Director Magik Door LTD > > Company Number : NI635217 > > Registered 63 Ballycoan rd, > > Belfast BT88LL > > www.magikdoor.net > > +44(0)7555784775 > > -------------- next part -------------- > > An HTML attachment was scrubbed... > > URL: > > < > > > https://mail.music.vt.edu/mailman/private/sursound/ > attachments/20191002/404 > > 37153/attachment.html > > > <https://mail.music.vt.edu/mailman/private/sursound/ > attachments/20191002/404 > 37153/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. > > > > _______________________________________________ > > 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. > > > > > -- > Dr. Augustine Leudar > Artistic Director Magik Door LTD > Company Number : NI635217 > Registered 63 Ballycoan rd, > Belfast BT88LL > www.magikdoor.net > +44(0)7555784775 > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <https://mail.music.vt.edu/mailman/private/sursound/ > attachments/20191004/e64 > ba89a/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. > > _______________________________________________ > 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. > -- Dr. Augustine Leudar Artistic Director Magik Door LTD Company Number : NI635217 Registered 63 Ballycoan rd, Belfast BT88LL www.magikdoor.net +44(0)7555784775 -------------- next part -------------- An HTML attachment was scrubbed... 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