On Sat, 02 May 2009 17:10:09 GMT, Rob
wrote:

Here's how it works. Quick speech recording, played against a constant
reverb impulse (a local church, in fact), repeated five times with the
ratio of direct and reverberant sound changed each time - final one is
reverberant only.

Obviously greatly exaggerated for illustration.

http://81.174.169.10/odds/depth.mp3

d

Which is a similar sensation I'd experience when valves are in the
amplification chain. I know (before you start!) that that doesn't
compute. It gives me a very believable notion of instruments (etc) and
spatial perspective.

Rob

Not sure what you mean. It's only voltage signals going through the
valves, so what they do to one, they must do to all. So do you mean
that everything sounds a bit further away with valves?

d