naturerecordists
[Top] [All Lists]

Re: Mono to sterio

Subject: Re: Mono to sterio
From: "Eric Benjamin" ericbenjamin2
Date: Sun Jan 22, 2012 1:11 pm ((PST))
>> suggested I could convert my recordings from mono to sterio

Scott Fraser wrote:
> It can't be done, for the simple reason that true stereo contains informa=
tion,
>in the form of timing and/or amplitude differences between the 2 channels,=
 which
>define positions within the left-right panorama, which do not exist at all=
 in a
>singular mono track

That's certainly true, insofar as it goes.=C2=A0 Information has been lost,=
 or more
properly, was never recorded, that would have described the spatial
characteristics of the recording venue.=C2=A0 But one could approximate wha=
t has been
lost.=C2=A0 There are various artificial reverberation programs, but that's=
 not what
I'm referring to here.

What could be done, instead, is to approximate the venue and to apply an im=
pulse
response from the approximate venue.=C2=A0 As an example, suppose I were to=
=C2=A0go to
Venezuela and make a series of recordings in the jungle, only to find out w=
hen I
returned home that I had acquired only one channel from my stereo pair.=C2=
=A0 I might
then go in to the woods locally, record a stereo=C2=A0impulse response in a=
n area
that is similarly wooded to the original venue.=C2=A0=C2=A0I would then app=
ly that impulse
response via convolution.=C2=A0 That would give me a 'stereo' version of th=
e original
mono recording.=C2=A0


It certainly wouldn't be the same as a stereo recording from the original
venue.=C2=A0 Most particularly, if there were more than one direct source i=
n the
original venue then both sources would appear to come from the same place.=
=C2=A0 But
at least the reverberation would be natural sounding, and appropriate to th=
e
site.

I've been meaning to try this for years but just haven't got to it.=C2=A0 M=
aybe my
problem is that I never made any mono nature recordings...

Eric Benjamin



<Prev in Thread] Current Thread [Next in Thread>
Admin

The University of NSW School of Computer and Engineering takes no responsibility for the contents of this archive. It is purely a compilation of material sent by many people to the naturerecordists mailing list. It has not been checked for accuracy nor its content verified in any way. If you wish to get material removed from the archive or have other queries about the archive e-mail Andrew Taylor at this address: andrewt@cse.unsw.EDU.AU