Mercurial > hg > aimmat
annotate aim-mat/tools/log2lin.m @ 4:537f939baef0 tip
various bug fixes and changed copyright message
| author | Stefan Bleeck <bleeck@gmail.com> |
|---|---|
| date | Tue, 16 Aug 2011 14:37:17 +0100 |
| parents | 20ada0af3d7d |
| children |
| rev | line source |
|---|---|
| tomwalters@0 | 1 % tool |
| tomwalters@0 | 2 % |
| tomwalters@0 | 3 % INPUT VALUES: |
| tomwalters@0 | 4 % |
| tomwalters@0 | 5 % RETURN VALUE: |
| tomwalters@0 | 6 % |
| tomwalters@0 | 7 % |
| bleeck@3 | 8 % (c) 2011, University of Southampton |
| bleeck@3 | 9 % Maintained by Stefan Bleeck (bleeck@gmail.com) |
| bleeck@3 | 10 % download of current version is on the soundsoftware site: |
| bleeck@3 | 11 % http://code.soundsoftware.ac.uk/projects/aimmat |
| bleeck@3 | 12 % documentation and everything is on http://www.acousticscale.org |
| bleeck@3 | 13 |
| tomwalters@0 | 14 |
| tomwalters@0 | 15 function linmeasure=log2lin(value,scaleinfo) |
| tomwalters@0 | 16 |
| tomwalters@0 | 17 % wandelt einen Wert entsprechend den Angaben in scaleinfo wieder |
| tomwalters@0 | 18 % in den ursprünglichen linearen Wert zurück |
| tomwalters@0 | 19 |
| tomwalters@0 | 20 from=scaleinfo.from; |
| tomwalters@0 | 21 to=scaleinfo.to; |
| tomwalters@0 | 22 steps=scaleinfo.steps; |
| tomwalters@0 | 23 |
| tomwalters@0 | 24 a1=log(from); |
| tomwalters@0 | 25 a2=log(to); |
| tomwalters@0 | 26 st=(a2-a1)/(steps-1); |
| tomwalters@0 | 27 |
| tomwalters@0 | 28 linmeasure=log(value/from)/st+1; |