On Thu, May 07, 2020 at 06:49:16PM +0000, Csounder Csounder wrote:
> Hi all,i record sometimes with my smartphone. The file are mono, and i want to simulate a stereo recording. The sound should be "reflected'by "virtual walls" to get deepness and the stereo effect. Is there an opcode that can do that? If not, may someone build some UDO for it?I guess it's not difficult for any intermediate csound user. Thanks in advance!

Hi,

A couple of suggestions....  You might find that a simple stereo
reverb is good enough.  I've used 'reverbsc', which I've found sounds
pretty good when applied to, say, my "Hammond" CSD.  There's
also 'freeverb', which has an explicit 'room-size' parameter.

If you want more explicit 'reflections from walls' you could use one
or more delay lines, with the delay based on the distance of the
wall from the source and you.  You'd probably want to feed that
into a reverb, too, to reflect the real world.  If the 'wall' is on the
left, you could only feed the left input of the reverb opcode, and
similarly for the right wall.  (Never tried anything like that, but it
sounds plausible... (:-)) 

Just some ideas.

	-- Pete --

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