Watch out in my numeric example, I was a bit careless and the q I chose continues to increase for more and more negative amplitudes!
On 2 November 2010 19:44, Ludwig Maes <ludwig.m...@gmail.com> wrote: > And we want f' to be 1 (integer step) / (per) quantization size (for > that amplitude) > > > On 2 November 2010 19:41, Ludwig Maes <ludwig.m...@gmail.com> wrote: >> The reason you use the inverse is so that the amplitude remains the >> same albeit quantized. The reason we use another function before >> flooring is to distritube the floor levels.But afterwards we need to >> bring the values back to their "original" place >> >> On 2 November 2010 19:37, Ludwig Maes <ludwig.m...@gmail.com> wrote: >>> So you want amplitude 'a' dependant quantization size 'q' ? take your >>> chosen q(a); in your example it seems you want a simple line: >>> q=q(0)-k*a; >>> define f(a) as integral of 1/q from a=0 to a; also calculate the >>> inverse of f(a) i.e. a(f); >>> >>> now for each sample do: out=a(round(f(in))) where round is any floor >>> or the like... >>> >>> have fun! >>> >>> ps: >>> >>> in your example: q=q0-k*a with for example q(0)=0.001 and >>> q(0.8)=0.0001: q:=0.001-0.0009/0.8*a >>> then f=2558.427881-1111.111111*ln(10.-9.*a) >>> and inverse=easy >>> >>> >>> On 2 November 2010 19:20, Ludwig Maes <ludwig.m...@gmail.com> wrote: >>>> This is pretty easy actually, I use such things mostly to guide my >>>> rhythmical quantization... >>>> >>>> On 2 November 2010 19:19, brandon zeeb <zeeb.bran...@gmail.com> wrote: >>>>> This is even better. If I could minimize the jumps around Y = 0.5 to -0.5 >>>>> It'll be exactly what I'm looking for... or a start at least. >>>>> >>>>> Do you see what I mean now? See how the amount of quantization changes >>>>> with >>>>> Y and a minimum quantization value? >>>>> >>>>> I think I'm getting towards the answer now... >>>>> >>>>> -- >>>>> Brandon Zeeb >>>>> Columbus, Ohio >>>>> >>>>> >>>> >>> >> > _______________________________________________ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list