[LAU] [Sort of OT] Ringing in filters

Ken Restivo ken at restivo.org
Thu May 13 08:42:27 UTC 2010


On Wed, May 12, 2010 at 09:44:58PM +0200, Fons Adriaensen wrote:
> On Wed, May 12, 2010 at 11:30:11AM -0700, Ken Restivo wrote:
> 
> > So, are the artifacts caused by the compressors or the EQ?
> 
> The ones I referred to are caused by the FFT-based EQ.
> 
> > I didn't use the EQ on JAMIN at all, just the multiband
> > compressors and the final limiter.
> 
> I don't know if Jamin uses the FFT processing to implement
> the bandsplitting for the multiband compressor.
> 
> If it does then the artefacts of this type of processing
> will show up in the output. 
> 
> If it doesn't, then Jamin needs some type of bandsplitting
> fillters that add up to exactly the input if compressors
> are inactive. I doubt very much if these are implemented
> in Jamin.  
> 

I dunno. What would the artifact sound like or look like? If I had a sample of what this kind of damage sounds like, or a picture of what it looks like, I'd be able to better determine if JAMIN was doing it or not.

One of the things I (and others) noticed, is a "nasty harshness" in the hihat. I don't know if this might have been caused by JAMIN artifacts, but it did go away by bypassing JAMIN. Being naive, and assuming that JAMIN was actually good mastering software, I thought the problem was with the hihat itself, and was just being made more noticeable when mastering. So, I "solved" the problem by hauling quite a few dB of 12Khz and 6Khz, .5 octave each, out of the overhead mics. I will be really annoyed if I ended up doing this just because of an artifact caused by JAMIN, or if there is other sludge in my mixes that was caused by it.

-ken


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