libsidplayfp  0.3.5
Public Member Functions | List of all members
reSIDfp::Filter6581 Class Reference
Inheritance diagram for reSIDfp::Filter6581:
reSIDfp::Filter

Public Member Functions

int clock (const int voice1, const int voice2, const int voice3)
void input (const int sample)
void updatedCenterFrequency ()
void updatedResonance ()
void updatedMixing ()
void setFilterCurve (const double curvePosition)
- Public Member Functions inherited from reSIDfp::Filter
void enable (const bool enable)
void setClockFrequency (const double clock)
void reset ()
void writeFC_LO (const unsigned char fc_lo)
void writeFC_HI (const unsigned char fc_hi)
void writeRES_FILT (const unsigned char res_filt)
void writeMODE_VOL (const unsigned char mode_vol)

Additional Inherited Members

- Protected Attributes inherited from reSIDfp::Filter
double clockFrequency
int fc
int res
int vol
bool filt1
bool filt2
bool filt3
bool filtE
bool voice3off
bool hp
bool bp
bool lp

Member Function Documentation

RESID_INLINE int reSIDfp::Filter6581::clock ( const int  v1,
const int  v2,
const int  v3 
)
virtual

SID clocking - 1 cycle

Parameters
v1voice 1 in
v2voice 2 in
v3voice 3 in
vEexternal audio in
Returns
filtered output

Implements reSIDfp::Filter.

void reSIDfp::Filter6581::setFilterCurve ( const double  curvePosition)

Set filter curve type based on single parameter.

Parameters
curvePosition0 .. 1, where 0 sets center frequency high ("light") and 1 sets it low ("dark")
void reSIDfp::Filter6581::updatedCenterFrequency ( )
virtual

Switch to new distortion curve.

Implements reSIDfp::Filter.

void reSIDfp::Filter6581::updatedMixing ( )
virtual

Mixing configuration modified (offsets change)

Implements reSIDfp::Filter.

void reSIDfp::Filter6581::updatedResonance ( )
virtual

Resonance tuned by ear, based on a few observations:

  • there's a small notch even in allpass mode - size of resonance hump is about 8 dB

Implements reSIDfp::Filter.


The documentation for this class was generated from the following files: