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New default argument to keyOn and keyOff in Envelope, fix in setTime function, updates to Guitar string coupling, EGuitar tcl interface, reordering of operations in Flute algorithm.

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Gary Scavone
2020-03-15 16:45:30 -04:00
parent 444dab21fd
commit a8b6affd8c
6 changed files with 67 additions and 29 deletions
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7
include/Guitar.h
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@@ -132,17 +132,20 @@ class Guitar : public Stk
StkFrames lastFrame_;
};
// NOTE: It is not possible to implement the Smith coupled string model here because the Twang class does
// not currently offer the chance to have access to a traveling-wave component. Thus, the coupling
// implemented here is approximate.
inline StkFloat Guitar :: tick( StkFloat input )
{
StkFloat temp, output = 0.0;
lastFrame_[0] /= strings_.size(); // evenly spread coupling across strings
lastFrame_[0] = couplingGain_ * couplingFilter_.tick( lastFrame_[0] ) / strings_.size();
for ( unsigned int i=0; i<strings_.size(); i++ ) {
if ( stringState_[i] ) {
temp = input;
// If pluckGain < 0.2, let string ring but don't pluck it.
if ( filePointer_[i] < excitation_.frames() && pluckGains_[i] > 0.2 )
temp += pluckGains_[i] * excitation_[filePointer_[i]++];
temp += couplingGain_ * couplingFilter_.tick( lastFrame_[0] ); // bridge coupling
temp += lastFrame_[0]; // bridge coupling
output += strings_[i].tick( temp );
// Check if string energy has decayed sufficiently to turn it off.
if ( stringState_[i] == 1 ) {