e1lama/stk
1
0
Fork 0
mirror of https://github.com/thestk/stk synced 2026-04-22 23:44:36 +00:00
Code Issues Packages Projects Releases Wiki Activity

Version 4.4.3

Browse Source
This commit is contained in:
Gary Scavone
2013-09-29 23:21:29 +02:00
committed by Stephen Sinclair
parent baca57040b
commit 0aec39260a
223 changed files with 26190 additions and 11130 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
include/BiQuad.h
View File

@@ -13,7 +13,7 @@ namespace stk {
Methods are provided for creating a resonance or notch in the
frequency response while maintaining a constant filter gain.
by Perry R. Cook and Gary P. Scavone, 1995 - 2010.
by Perry R. Cook and Gary P. Scavone, 1995-2011.
*/
/***************************************************/
@@ -59,6 +59,8 @@ public:
filter frequency response has a resonance at the given \e
frequency. The closer the poles are to the unit-circle (\e radius
close to one), the narrower the resulting resonance width.
An unstable filter will result for \e radius >= 1.0. The
\e frequency value should be between zero and half the sample rate.
*/
void setResonance( StkFloat frequency, StkFloat radius, bool normalize = false );
@@ -66,8 +68,9 @@ public:
/*!
This method determines the filter coefficients corresponding to
two complex-conjugate zeros with the given \e frequency (in Hz)
and \e radius from the z-plane origin. No filter normalization
is attempted.
and \e radius from the z-plane origin. No filter normalization is
attempted. The \e frequency value should be between zero and half
the sample rate. The \e radius value should be positive.
*/
void setNotch( StkFloat frequency, StkFloat radius );
@@ -130,7 +133,7 @@ inline StkFrames& BiQuad :: tick( StkFrames& frames, unsigned int channel )
{
#if defined(_STK_DEBUG_)
if ( channel >= frames.channels() ) {
errorString_ << "BiQuad::tick(): channel and StkFrames arguments are incompatible!";
oStream_ << "BiQuad::tick(): channel and StkFrames arguments are incompatible!";
handleError( StkError::FUNCTION_ARGUMENT );
}
#endif
@@ -155,7 +158,7 @@ inline StkFrames& BiQuad :: tick( StkFrames& iFrames, StkFrames& oFrames, unsign
{
#if defined(_STK_DEBUG_)
if ( iChannel >= iFrames.channels() || oChannel >= oFrames.channels() ) {
errorString_ << "BiQuad::tick(): channel and StkFrames arguments are incompatible!";
oStream_ << "BiQuad::tick(): channel and StkFrames arguments are incompatible!";
handleError( StkError::FUNCTION_ARGUMENT );
}
#endif