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In the Forum: Horn-Loaded Speakers
In the Thread: Aporia - Silbatone Acoustics speaker
Post Subject: Reality of point sourcePosted by drdna on: 2/9/2009
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 tuga wrote:
I really meant to illustrate the fact that Point Source does not exist in "real life" and that it's analogy with a single driver makes no sense (then there is the question of live vs. recorded-and-then-reproduced sound and live sound being different things...)
Exactly. There is absolutely no question that reproduced music and live creation of sounds are totally different. They are totally physically different mechanisms. Reproduced sound is limited only to the small portion of the event that a microphone recorded.

However, the concept of the point source is absolutely valid. The audio reproduction should follow the transduction from the microphone, which is point source. We have to "play by the rules we make."

It is a trade-off of course, and no point source is perfect, but that is a different argument.

MORE INTERESTING, turn it around and make recordings based on how the speakers exist. Have on each side a microphone down low near the ground to record bass notes, another one up higher to record high notes only, and mix them into a stereo version. THEN, when you have your playback, the audio more closely reflects the original event: a "multi-point source" recording. This is really the way to do it, but for some reason nobody records this way, even though nearly all stereo systems are built in a very similar configuration.

Adrian

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