Hi Sursounders, just bumped into a reference that I had forgotten and that may help to clarify the point/plenum question. In one of his notebooks Gerhard refers to a demonstration given by Raimond Raikes from the department of Drama of the BBC in the following way:
"the possibility of locating sound in a concrete point of three-dimensional space; of making it come nearer or move away at will; so that it moves across the auditive field from right to left or viceversa, as an actor crosses the stage; and above all, the extraordinary effect of the _spread_ of sound, which, from a central point, one can extend over the entire auditive field: these are not simply tricks: in my opinion, they constitute a new 'dimension' [...]." What sound location technique could have been presented at the BBC to Gerhard by Mr. Raikes? again huge thanks for your comments! G On 20.04.2012, at 00:17, Gregorio Garcia Karman wrote: > Hi all > > huge thanks for all your comments, the conversation developed in various > different directions but there were quite inspiring ideas, at least for me. > Particularly I found quite interesting the discussion on decorrelation, and I > loved the trick of re-recording a sound with a loudspeaker and a stereo pair. > > Richard, I agree, I would also expect Gerhard to have a specific meaning in > mind, something he would have bumped into somewhere. He was just starting to > get familiar with stereophony, perhaps he was just thinking of MS image > control or reverberation... I don't discard something in direction of the > PS22 either. Does anyone know if this process could have been common in the > mid 60s BBC to 'upgrade' mono recordings? > > Just thinking aloud, another trail might be american experimental music, i.e. > some spatialisation gadget that e.g. someone like gordon mumma could have put > together and Gerhard became familiar with during his visits to the EEUU. He > was a curious man. > > I'm not sure I understand what you mean by primary and environmental sound > though... > > Gregorio Garcia Karman > > > > On 19.04.2012, at 23:25, dobson richard wrote: > >> I hope "plenum" is not simply being treated as simply synonymous with >> reverberation. I am not privy to the Gerhard materials being worked on, but >> I would expect him to have some specific, maybe related, but distinct >> meaning in mind. My guess is that it would relate to the primary sound >> itself, rather than environmental effects (real or otherwise). The melody >> as distinct from the accompaniment, so to speak. >> >> Richard Dobson >> >> On 19 April 2012 19:46, Ronald C.F. Antony <r...@cubiculum.com> wrote: >> >>> >>> On 19 Apr 2012, at 19:53, Martin Leese <martin.le...@stanfordalumni.org> >>> wrote: >>> >>>> umashankar mantravadi <umasha...@hotmail.com> >>>> ... >>>>> apart from >>>>> clean reproduction of reverberation, i note the speakers do not have to >>> put >>>>> out much power - compared to the same recording converted to stereo and >>>>> played from a conventional pair of speakers. is this a dataset that >>> could >>>>> sell ambisonics? >>>> >>>> The same was true of the Hafler circuit (which >>>> I used for 18 years), so it is unlikely to be the >>>> "killer app" that sells Ambisonics. >>>> >>>> For those unfamiliar with a Hafler circuit, see: >>>> http://members.tripod.com/martin_leese/Audio/HaflerCircuit.txt >>> >>> Class D amps, done properly, are both very high-fidelity, and about an >>> order of magnitude more power efficient, than e.g. a Class-A amp. >>> Unfortunately, the Audio snake-oil sales people manage to convince >>> customers that unless you can fry eggs on your amp and it has a 2 >>> square-foot, half-inch-thick brushed aluminum front plate, it's not a >>> he-man amp... >>> ...so reduced power uptake is not going to sell Ambisonics, at least not >>> in the traditional audiophile circles. Maybe a green-audio angle could be >>> used to get a different sort of clientele excited and asking about >>> Ambisonics. >>> And of course, a green/alternative/acoustic/folksy kind of audience might >>> also appreciate a more realistic ambience of corresponding music than the >>> typical classic-rock or multi-mic-classical-music enthusiasts. >>> >>> Ronald >>> _______________________________________________ >>> Sursound mailing list >>> Sursound@music.vt.edu >>> https://mail.music.vt.edu/mailman/listinfo/sursound >>> >> -------------- next part -------------- >> An HTML attachment was scrubbed... >> URL: >> <https://mail.music.vt.edu/mailman/private/sursound/attachments/20120419/b940b35c/attachment.html> >> _______________________________________________ >> 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 _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
