Re: Drawing an EQ curve
Re: Drawing an EQ curve
- Subject: Re: Drawing an EQ curve
- From: Urs Heckmann <email@hidden>
- Date: Thu, 4 Sep 2003 08:53:41 +0200
Am Mittwoch, 03.09.03, um 21:50 Uhr (Europe/Berlin) schrieb Robert
Grant:
I'm trying to wrap Apple's EQ AUs in to a nice EQ effect for a mixer
channel.
In that case, you could make a "hidden", minimal mixer channel that you
- set Settings of currently edited channel
- reset();
- feed IR (i.e. only cos part of all the bins you want to display, zero
padded to end of buffer)
- apply window ( to get rid of abrupt end of buffer due to IIR )
- FFT analyze
- calculate phase/magnitude from selected cos/sin couples of FFT result
this won't be 100% accurate, but probably viable for the plot.
this looks quite expensive, but an asynchronus calculation might be
sufficient (limitted to 5 times per second or so)
If you do it in a way that only the curves of currently selected
channel are displayed, it should even be fine during heavy automation.
(and it would be cool for everyone to see how Apple's EQs do 8-)
Hehe... you could also badge your mixer with "Trust Your Ears!"...
Cheers,
;) Urs
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