22 Mar
2012
22 Mar
'12
1:55 p.m.
Simple question, When recording IR's with a transient (popping balloon)
Do I need to run it through some post processing like you have to with a
sweep? or do you just cut the beginning and use it as is?
22 Mar
22 Mar
9:01 p.m.
On Thursday 22 March 2012 14:53:36 alexander wrote:
Simple question, When recording IR's with a
transient (popping balloon)
Do I need to run it through some post processing like you have to with a
sweep? or do you just cut the beginning and use it as is?
Use as is. It is already the response to an almost perfect delta-peak.
If you really know the popping sound of your ballon, you could deconvolve that
to get the response to a real delta-peak.
But when you record two signals, one far away and one near the
ballon/gun/wood-blocks and then use the nearer signal for deconvolution, you
will probably also eliminate the early-reflections. Of course if its only the
long tail you are after...
Another note: When you do not cut the inital peak, you won't have to decide on
the level of the IR compared to the dry signal. Because then your IR'ed signal
is original (as it sounds through a popping balloon) and reflections.
Have fun,
Arnold
10:35 p.m.
On Thu, Mar 22, 2012 at 09:01:19PM +0100, Arnold Krille wrote:
Use as is. It is already the response to an almost
perfect delta-peak.
'Almost perfect' is a bit optimistic. If you can isolate the
direct sound in the IR, you could invert its spectrum and use
that to EQ the the IR.
In practice use EQ and adjust 'by ear' until it sounds like
the real thing.
Ciao,
--
FA
A world of exhaustive, reliable metadata would be an utopia.
It's also a pipe-dream, founded on self-delusion, nerd hubris
and hysterically inflated market opportunities. (Cory Doctorow)
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Fons Adriaensen