![]() ![]() Although it could also be acting as a gain ratio. bigger value means quieter overall sounds. Il have to check this, but i assume its working as a compressor threshold i.e. The threshold is when it will start becoming active on a particular sound. This 'should' give you a more consistent audio level while playing instead of, for example, really quiet rocket sounds and then suddenly and immensely loud bang. What it tries to achieve is to make quieter sounds louder, and at the same time, any really loud sounds a bit quieter. Where a is the gain at time n, T>0 is related to 'threshold', and 0 ![]() However, it is likely that 'Responsiveness' corresponds to the forgetting factor (or maybe its logarithm) for a single-pole IIR filter that acts on the audio energy over short time windows or individual samples.Ä«ased on my assumptions, a model for the Normalizer could be given by this recursion: These values are unitless because audio is generally dealt with in unitless quantities (since you have a speaker amplifying everything, adding any units would be a waste anyway). 'Threshold' is more mysterious to me, but I would guess it is some regularization that keeps the louds slightly louder than the quiets (and vice-versa) so that the AGC does not wash out all of the dynamic range. A fast responsiveness will adapt quicker but may overreact to something loud and short like an explosion, whereas if it is slow it will be steadier (and more accurate) over time, but may take some time to converge to that state. If my guess is correct, then 'responsiveness' controls how quickly the filter reacts to new data. Shooting ideas out my butt, but just based on the label I would expect it to be some sort of automatic gain control (AGC) that makes the sound louder when quiet and quieter when loud, so that you can hear stuff (and not have your ears blown out) regardless of if you're drifting through the endless void or sitting atop a 3000t rocket. ![]()
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