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Update opl2instrument.cpp

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This commit is contained in:
Vesa V
2014-12-16 23:00:14 +02:00
parent ed0dc6770d
commit da6fd6ef5c
1 changed files with 2 additions and 2 deletions
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4
plugins/opl2/opl2instrument.cpp
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@@ -497,7 +497,7 @@ void opl2instrument::loadPatch(unsigned char inst[14]) {
void opl2instrument::tuneEqual(int center, float Hz) {
float tmp;
for(int n=0; n<128; ++n) {
tmp = Hz*pow( 2, ( n - center ) / 12.0 + pitchbend / 1200.0 );
tmp = Hz*pow( 2.0, ( n - center ) * ( 1.0 / 12.0 ) + pitchbend * ( 1.0 / 1200.0 ) );
fnums[n] = Hz2fnum( tmp );
}
}
@@ -505,7 +505,7 @@ void opl2instrument::tuneEqual(int center, float Hz) {
// Find suitable F number in lowest possible block
int opl2instrument::Hz2fnum(float Hz) {
for(int block=0; block<8; ++block) {
unsigned int fnum = Hz * pow(2, 20-block) / 49716;
unsigned int fnum = Hz * pow( 2.0, 20.0 - (double)block ) * ( 1.0 / 49716.0 );
if(fnum<1023) {
return fnum + (block << 10);
}