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This is can be achieved with established recording techniques, like [[A-B technique]], [[Blumlein pair]], [[M-S technique]], [[ORTF stereo technique]], or by experimenting with different types of microphones and microphone locations.
 
Signals that sound too narrow — like too coherent stereo recordings, monophonic recordings or synthetic sounds — can be widened by so-called pseudostereophony.<ref name="csound">{{cite journal|last1=Cabrera|first1=Andrés|editor1-last=Hearon|editor1-first=James|editor2-last=Yi|editor2-first=Steven|title=Pseudo-stereo Techniques|journal=CSound Journal|date=2011|issue=14|url=http://csoundjournal.com/issue14/PseudoStereo.html|accessdate=25 May 2018}}</ref><ref name="faller">{{cite conference|last1=Faller|first1=Christoph|title=Pseudostereophony Revisited|conference=Audio Engineering Society Convention 118|pages=paper number 6477|date=2005|url=http://www.aes.org/e-lib/browse.cfm?elib=13193|accessdate=25 May 2018}}</ref><ref name=ziemer/> These techniques [[decorrelation|decorrelate]] the stereo channels by applying individual [[audio filter]]s, [[Reverberation#Creating reverberation effects|reverberation]] or [[Delay (audio effect)|delay effects]] to each. The resulting channels' signals are similar enough to be heard as one integrated auditory sound object but are so diverse that they do not seem to originate in a tiny [[point source]] but rather in a broad source.<!-- Such techniques were also used in [[User:Kvng/RTHDuophonic]] sound to re-release monophonic recording with pseudo->stereophonic sound.
 
Such techniques were also used in [[Duophonic]] sound to re-release monophonic recording with pseudo-stereophonic sound.
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A "surround" sound section could be added to discuss asw in mono/stereo/Dolby Surround/Quadraphonic Sound/5.1/auro3D/Dolby Atmos/Ambisonics/Wave Field Synthesis...:
==Surround Sound==
[[monaural]]
[[stereophonic sound]]
[[quadraphonic sound]]
[[Dolby Pro Logic]]
[[5.1 surround sound]]
[[Dolby Atmos]]
[[Auro-3D]]
[[ambisonics]]
[[wave field synthesis]]
-->
 
==Related sound impressions==