Mind Stretchers
On=20Wed=20Jun=2013=2023:47:10=202012=20Sebastian= 20Kaliszewski=20=
=20wrote:
=20If=20someone=20came=20with=20good=20theory=20a llowing=20us=20c=
onvicing=20audio=20scene=20recreation
=20without=20sacrificing=20other=20audio=20aspect s=20some=20stand=
ard=20like=20--=20place=20mikes=20always
=2012ft=20above=20flooor,=20pointed=20such=20as=2 0such,=20etc.
Hi=20Sebastian=20-
Welcome=20to=20the=20dogfight!
I=20was=20just=20trying=20to=20relate=20a=20subjec t=20that=20has=
=20been=20near=20and=20dear=20to=20my=20heart=20fo r=20a=20long=20t=
ime,=20and=20it=20has=20turned=20into=20a=20Hatfie lds=20and=20McCo=
ys=20pitched=20battle=20for=20some=20reason.=20I=2 0think=20audio=
=20people=20have=20a=20lot=20of=20dug=20in=20ideas =20that=20are=20=
hard=20to=20change.=20There=20is=20also=20a=20lot= 20of=20miscommun=
ication=20here,=20sometimes=20because=20we=20don't =20try=20very=20=
hard=20to=20understand=20the=20other's=20point.=20 In=20any=20case=
=20I=20didn't=20intend=20it=20to=20turn=20out=20th is=20way=20-=20j=
ust=20wanted=20to=20run=20a=20few=20ideas=20up=20t he=20flagpole=20=
in=20a=20friendly=20manner=20and=20use=20the=20sim ple=20to=20compl=
ex=20method=20to=20do=20that.=20Start=20with=20a=2 0few=20things=20=
that=20we=20would=20all=20agree=20on,=20then=20rat chet=20it=20up=
=20to=20some=20things=20that=20I=20have=20discover ed.
In=20order=20to=20do=20your=20convincing=20audio=2 0scene=20recreat=
ion=20we=20first=20study=20What=20Can=20We=20Hear, =20by=20means=20=
of=20describing=20all=20of=20the=20MAJOR=20categor ies,=20or=20aspe=
cts,=20of=20sound=20that=20are=20audible=20and=20r elate=20them=20t=
o=20the=20repro=20problem.=20We=20got=20down=20to= 20the=20spatial=
=20characteristics=20as=20being=20the=20main=20stu mbling=20block,=
=20and=20the=20new=20paradigm=20that=20I=20attempt ed=20to=20relate=
=20as=20a=20way=20of=20looking=20at=20the=20proble m=20is=20the=20w=
ell-known=20technique=20of=20image=20modeling.=20It=20 is=20just=20=
a=20more=20visual=20way=20of=20studying=20the=20di rect=20and=20ear=
ly=20reflected=20parts=20of=20the=20sound=20fields .=20If=20you=20t=
ake=20a=20look=20at=20the=20image=20model=20of=20r eproduced=20soun=
d=20from=20speakers,=20you=20can=20compare=20that= 20to=20the=20liv=
e=20model=20and=20see=20the=20differences.=20There =20are=20obvious=
=20physical=20differences=20in=20the=20"shape"=20o f=20these=20fiel=
ds=20that=20we=20can=20make=20a=20little=20better= 20with=20what=20=
I=20call=20The=20Big=20Three=20-=20speaker=20positioning,=20radiat=
ion=20pattern,=20and=20room=20acoustics.=20This=20 is=20possible=20=
because=20the=20two=20rooms,=20although=20differen t=20sizes,=20are=
=20geometrically=20similar.
Maybe=20I=20should=20quit=20while=20I=20am=20behin d=20-=20and=20yo=
u=20can=20read=20thru=20the=20thread=20-=20but=20that=20is=20basic=
ally=20the=20theory=20that=20you=20are=20asking=20 for.=20Specifica=
lly,=20it=20says=20that=20the=20reproduction=20wil l=20sound=20clos=
est=20to=20the=20live=20sound=20when=20the=20image =20model=20of=20=
the=20reproduction=20sound=20field=20is=20as=20clo se=20to=20that=
=20of=20the=20live=20field=20as=20possible.=20I=20 refer=20to=20all=
=20audible=20characteristics=20of=20both=20fields, =20which=20is=20=
why=20I=20started=20with=20the=20What=20Can=20We=2 0Hear=20thread=
=2E=20To=20me,=20this=20theory=20is=20a=20tautolog y=20-=20an=20ind=
isputable=20fact=20that=20is=20so=20obvious=20that =20it=20requires=
=20no=20proof.=20To=20others,=20it=20is=20a=20chal lenge=20to=20lon=
g=20held=20beliefs.
Gary=20Eickmeier
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