FFT analysis provides equally spaced frequency bins across the entire audio spectrum, so we end up with just a few bins per octave at low frequencies, and possibly hundreds of bins per octave at high frequencies. For musical purposes we only want the general shape of the EQ, not individual notes. The disadvantage of using a large "Size" in the spectrum plot is that it can produce too much detail in the high frequencies. What would be involved to modify the script as follows:ġ) Get reference from music we want to copy the response from.Ģ) Get plot of music we want to apply it to.ģ) Script computes if gain or attenuation is required and how much per frequency or from averaged 1/3 octave bins. It would be great to get something like this going for Audacity, however my Nyquist/Lisp knowledge is nearly zero. since there is no reference, plus the fact (I suspect) that the spectrum uses max at 0dB whilst the EQ is plus or minus relative to 0dB. The resulting EQ is always worse (especially at the high end), i.e. This then allows me to use a greater resolution of 4096 points on the spectrum.) (BTW I increased the limit in your script to 200000 with no ill effects on Nyquist, just takes about 30 seconds to complete. Tried your plugin recently but there seems to be a problem. Many moons ago, you wrote a proof of concept script that takes the spectrum plot and via a plugin, it can be loaded into the EQ.
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