I agree. Time confusion in stereo(as generated by spaced omnis)
is far from being the same thing as spatially diffuse field sound.
This is the real reason stereo sounds wrong as far as I am
concerned. No offense to people who like "spatial music"
but the music I like happens in front. What does not happen
all in front is the sound of the music! Orchestras sound
weird out of doors --weird and wrong. The sound around
is a crucial part of the experience.
Ditto for most acoustic music that is performed indoors--
the sound around matters!
Robert
On Thu, 19 Apr 2012, umashankar mantravadi wrote:
for me, this is where ambisonics (or surround sound) really comes in. we have
been recording dry (even with blumlein) and hoping the speakers at home will
create enough 'ambience' of some kind. one reason we are forced to do this is
because in the real world reverberation is three dimensional; it rarely comes
from the same direction as the primary sound. in stereo, the reverberation has
to be reproduced in the same direction as the primary sources and from nowhere
else. a stereo recording done from the 'best seat' is distant and overly
reverberant. done with a first order A format and even approximately decoded
to an eight speaker system, the reverberation is natural (the recording as
whole sounds like it did on location.) i have been recording with my home build
zoom+tetrahedral microphones for over two years now, and have an eight speaker
system (100 watt digital amplifiers, but 4 inch 50 watt full range loudspeakers
in sealed boxes -cost is the primary concern). the rec
or
dings have been of folk music (mostly in rajasthan) classical (sarod) and
semiclassical vocal north indian music, and locations have varied from a 15th
century temple to the India International Centre lawns. 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?
umashankar
i have published my poems. read (or buy) at http://stores.lulu.com/umashankar
> Date: Wed, 18 Apr 2012 19:48:34 -0700
From: gre...@math.ucla.edu
To: sursound@music.vt.edu
Subject: Re: [Sursound] audio point / audio plenum
It is interesting how this more or less obvious point-
that localizing discrete sources and localizing all the(often multiple(
reflections that make up the whole spatial impression would be
one supposes related--has escapted the popular press especially
of the "High End" ilk.
They are all wound up about "soundstage" versus "image"
and claim eg that Blumlein stereo does image but it is spaced omni that
does soundstage and so on.
Apparently it has not occurred to people that if you
blur things enough to create "spaciousness" artificially
you will also blur the direct images, too. And the other way around
that if you reproduce where everything is correctly,
you will also reproduce where all the reflections come from.
That being said, there is some issue in stereo recording
about creating the illusion/impression of diffuse field,
which of course is considerably more than half the sound
heard at natural audience locations in a concert hall.
Most of the time the diffuse field is inadequately represented
in the recording--they are far too dry in effect through being too close--
so that one ends up trying to synthesize them from the listening room--
which of course comes out all wrong, if one is trying to get
a sound like a big hall. Thus one ends up with things like Bose
direct/reflecting and dipoles used not to reduce side wall reflections in
the listening room so much as generate back wall reflections and so on and
on and on, "soundstage" descriptions ad nauseum.
Robert
On Thu, 19 Apr 2012, J?rn Nettingsmeier wrote:
On 04/18/2012 11:38 PM, Peter Lennox wrote:
....I wasn't kidding! - the higher the order, the better you can
control spatial imaging / de-imaging.
I know we normally think that increased directional resolution
corresponds to improved pin-point images, but thinking of it the
other way around - increased directional resolution corresponds with
with decreased 'accidental phantom imaging' is alsp true
absolutely. and i'm happy to welcome you as a honorary whippersnapper among
the ranks of the HOA snobs conspiracy :)
--
J?rn Nettingsmeier
Lortzingstr. 11, 45128 Essen, Tel. +49 177 7937487
Meister f?r Veranstaltungstechnik (B?hne/Studio)
Tonmeister VDT
http://stackingdwarves.net
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