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Author Topic: Interpreting waterfall plots
Killa_Hz
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Ok, I know that the "ideal" speaker would have an impulse response of, well, an impulse. But speakers being the imperfect devices that they are, have all kinds of blips and curves showing up in waterfall plots.

So can someone explain how to read a waterfall plot? Some specific questions I have are: what is an acceptable decay time for a {tweeter, midrange, midbass, sub}, and how are imperfections in the waterfall plot such as certain frequencies not decaying as fast as others perceived by our ears?

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Posts: 95 | From: PA then IL then TX | Registered: Oct 1999  |  IP: Logged | Report this post to a Moderator
ShadowStar
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When I look at a waterfall plot, I usually use a reference that I have heard before. For example, with tweets, I use the Seas 881 waterfall plot (www.seas.no).

ShadowStar


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Mouser
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No idea what they are, but there's some on www.ejjordan.co.uk
Completely mystifying.
Colin

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ShadowStar
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Colin- They are impulse vs. time vs. amplitude response charts.

An impulse is given to the driver, and the SPL is measured as the response falls off.. It measures how quickly a driver response at frequencies.

ShadowStar

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Still looking for that CHEAP Thunderdome :D

Got Ears? Get Oz!

You can't build a reputation for what you're GOING to do.. But you can build one for TALKING about it!

-Eclipse-Rockford Fosgate-Oz Audio-Precision Power Inc.-AudioControl-Stinger-Tsunami-Clifford

It's all about knowledge, love and respect.


Posts: 2578 | From: Somewhere In the Northeast | Registered: May 1999  |  IP: Logged | Report this post to a Moderator
Mouser
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What would be a good one then theoretically?

Colin

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Posts: 2999 | From: England | Registered: Oct 2000  |  IP: Logged | Report this post to a Moderator
   

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