On Sat, 2 May 2009 16:08:03 +0100, "Keith G"
wrote:


"Don Pearce" 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


Reminds me I've still got a 'Norwegian Wood' clip here somewhere! :-)

That was very quick and very dirty.

Anyway, nothing new there Don - Pinky was on about that years ago and also
claiming the better 'spatiality' (I'm avoiding the word 'depth' - it's
become the subject of controversy) from triode valves was due entirely to
*internal reverb/feedback* caused by 'Miller Effect' (IIRC)...??

I went to check and found nothing and hesitate to post these links:

http://www.psaudio.com/ps/wiki/Miller-Effect/

http://www.aikenamps.com/MillerCapacitance.html

...because I don't really need to know and I don't want hitting over the
head with them; I post them only for perusal by others....



That was nothing about reproduction and hi fi kit, just the way front
to back spatial positioning is represented in recorded music. Stuff
"up front" will have much less reverb than stuff coming from far away.
That's just how it's done.

d