Holographic imaging


Hi folks, is the so called holographic imaging with many tube amplifiers an artifact? With solid state one only hears "holographic imaging" if that is in the recording, but with many tube amps you can hear it all the time. So solid state fails in this department? Or are those tube amps not telling the truth?

Chris
dazzdax
If these "doppler" errors are indeed there, and are "microscopic" how does one determine where they occur, read them at each occuring stage, and how is their (I'm assuming) delicate effect, effectively corrected and how is that delicate(?) correction calibrated at each stage?
In regard to the effect of moving the listening position in a typical listening room, I would guess that the issues of the sound changing due to the change in effect the room would have, and the issues of driver intergration might swamp the effect of such "doppler" issues.
"then an amplifier should sound "flat", because that is closer to the truth"

You lost me on this. Why do you think "flat" is closer to "the truth"?

What "truth" are you referring to?

Musicians perform and sound waves propagate in 3 dimensions last time I checked?

Not that "holographic" necessarily equates to truth either, but I can't see how "flat" could be closer to the real truth either.

Your not just yanking our chains for fun, are you?
09-25-08: Roger_paul
Musicnoise,

In other words when you walked toward the stage – the pitch of all the instruments was increased. If you were to walk toward the back of the hall to sit in row 20 you would experience the lowering of the total pitch of the music.

Interesting concept.

How far back would one need to sit to hear the same performance in a different key than someone sitting in the front row?
"Not that "holographic" necessarily equates to truth either, but I can't see how "flat" could be closer to the real truth either."

Actually I can think of a way. That would be assuming "flat" refers to a projection of the original 3-D sound onto a flat plane, much as portions of the real earth are projected onto paper maps.

In this case, realize that projected representations of 3-d objects onto a map are inherently and by design distorted reproductions of the real thing.
Tvad,

You missed the point entirely. If you read my post again you will see that it is not where you sit - the Doppler only occurs during the relocation process. IOW when you travel from the front of the hall to the back (walking). Once you sit down - your going to hear the same pitch as the guy in the first row but delayed by X distance.

You would agree that the act of moving away from a sound source makes the frequency/pitch appear lower?

Roger