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Useful Tip: De-Zippers and result of Multiplication

DSP related issues, mathematics, processing and techniques

Re: Useful Tip: De-Zippers and result of Multiplication

Postby nix » Mon Nov 12, 2018 11:37 pm

mmm-
I can agree to that.
It's obvious that DSP effects work and they do not all sound the same.
The different effects have different waveforms when rendered to prove it.

however-
multiplication and division sound the same, I think any rounding errors are inconsequential when using a normal bitrate.

-- they are essentially exactly the same.
If you took a 440 hz sine with .5 peak, and multiplied it by .5 and rendered that
and the same sine and divided it by 2
they would null when phase inverted for sure, without any noise or inconsistencies at all
This test could be extrapolated by multiplying them again by 2 and dividing it by .5 unto say 1000 iters
to see if they would still null perfect
--they prolly would
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Re: Useful Tip: De-Zippers and result of Multiplication

Postby wlangfor@uoguelph.ca » Fri Mar 29, 2019 9:12 pm

Ok, lol; so I feel having no de-zip can be very relevant. But obviously using it while configuring or affecting settings there is a great strength to its being utilized.

To that end I've made a usable example which can be found in the beta of the shelf EQ which is available here:
http://flowstone.co.uk/support/viewtopic.php?f=2&t=14696&sid=96a171acb2c1bef01280c0fce38a2753

(just look within the code which contains the coefs for the hp and lp).
Download VST: LA Bands 15 Band EQ
My Website http://www.leattol.com
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