transpose formula

[Zenon]

I have noticed that transpose value of a sample changes basing on samplerate;

What's the exact formula to find out the relative note having a certain samplerate (11025, 22100 etc. ) ?

[Saga Musix]

This should work in theory...

Code Select Expand

int f2t = (int) (1536.0 * (log((double)$Frequency/ 8363.0) / log(2.0)));
int transp = f2t >> 7;
int ftune = f2t & 0x7F; //0x7F == 111 1111
if (ftune > 80)
{
transp++;
ftune -= 128;
}
if (transp > 127) transp = 127;
if (transp < -127) transp = -127;
$RelativeTone = transp;
$FineTune = ftune;

Replace the "$" variables with your own names.

[Zenon]

Awesome! Works great!

Thanks a lot  :wink: