Metallist

Help me please with LOG function
See example:

[color=blue]input[/color] in;
[color=blue]output[/color] out;
[color=blue]control[/color] volume=0x19999999, exponent=0x2ccccccc;
[color=blue]temp[/color] t
[color=lime];code[/color]
[color=magenta]log[/color] t, in, exponent, 0x0;
[color=magenta]macs[/color] out, 0x0, t, volume;
[color=blue]end[/color]
[color=#0000ff][/color]
[color=white]Situation: when moving exponent slider the shape of output signal does not change smooth, but unevenly(bouncely).[/color]
[color=#ffffff]Problem: WHY DOES IT HAPPEN SO ?????[/color]
[color=#0000ff][/color]

Russ

For one thing the range of the Max Exponent parameter is 0x1 to 0x1F (1 to 31), while the control's range is 0x0 to 0x7FFFFFFF (fractional values), so I am unsure what would happen when you use the instruction with invalid parameters.

radiocolonel.it

the "exponent" is what usually is called "resolution", it is a number between the 1-31 and the highier it is the better is the approximation of the log function!

__________________

http://www.rossanodembech.it

Metallist

Thanks. I solved a problem when I multiplied the value of exponent slider by 0x1F. And now when slider ranges from 0 to 2147483647, then exponent ranges from 0 to 31.

radiocolonel.it

... Are u doing something like yhis?

__________________

http://www.rossanodembech.it

Metallist

Yes, you're right.
But there is one bound by 5 dB at 52% of "amount" slider.

But now it isn't very big problem for me.
But it is still interesting, why there is such bound.