I am confused here. I thought the Log curves were designed to sacrifice detail in the highlights where the eye is less sensitive to small incremental light level changes and give more detail to the darker areas were smaller level shifts are more apparent. Also the log Transforms keep the signal from hard clipping on top and bottom.
In my basic understanding of log math etc... things like vision or hearing are logarithmic in nature. The perceived volume change a person hears depends on the overall loudness to begin with. Doubling the power isn't twice as loud. Hence going from a one watt amp to a ten watt amp will seem much more different than going from a hundred watt amp to 110 watt amp. Same power jump but much less perceived difference in loudness/volume. I know there are technical differences these days between loudness and volume but that's not what I'm talking about here.
In broad strokes I remember being taught that things in nature tend to behave in a log manner because they are based on perception and not actual volts etc... that can be measured.
So did I get my memory backwards and it's really the bright lights where the human eye is most sensitive to brightness changes? I thought the log was just keeping the highlights from clipping hard like they would in a traditional sense too.
Oh my brain hurts.
---In Avid-L2@yahoogroups.com, <tcurren@...> wrote :
Posted by: bigfish@pacbell.net
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