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1.8.14
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SynthLab SDK
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hard-coded arrays of FIR filter coefficients for the sample rate conversion objects (Interpolator and Decimator) More...
Go to the source code of this file.
Classes | |
| struct | SynthLab::VectorXFadeData |
| Holds mixing coefficient multipliers for the Sequential/Korg vector joystick. More... | |
Macros | |
| #define | __synthfunctions_h__ |
| #define | enumToInt(ENUM) static_cast<int>(ENUM) |
| macro helper to cast a typed enum to an int More... | |
| #define | compareEnumToInt(ENUM, INT) (static_cast<int>(ENUM) == (INT)) |
| compare a typed enum value to an int More... | |
| #define | compareIntToEnum(INT, ENUM) ((INT) == static_cast<int>(ENUM)) |
| compare a typed enum value to an int More... | |
| #define | convertIntToEnum(INT, ENUM) static_cast<ENUM>(INT) |
| convert an int to an enum, e.g. for passing to functions More... | |
Enumerations | |
| enum | SynthLab::NoteDuration { k32ndTriplet, k32nd, k16thTriplet, kDot32nd, k16th, k8thTriplet, kDot16th, k8th, kQuarterTriplet, kDot8th, kQuarter, kHalfTriplet, kDotQuarter, kHalf, kWholeTriplet, kDotHalf, kWhole, kDotWhole, kOff, kNumNoteDurations } |
| emumearation of musical durations, shortest to longest More... | |
Functions | |
| void | SynthLab::copyOutputToInput (std::shared_ptr< AudioBuffer > source, std::shared_ptr< AudioBuffer > destination, uint32_t channel, uint32_t samplesToCopy) |
| copies an output audio buffer to an input audio buffer More... | |
| void | SynthLab::copyOutputToOutput (std::shared_ptr< AudioBuffer > source, std::shared_ptr< AudioBuffer > destination, uint32_t channel, uint32_t samplesToCopy) |
| copies an output audio buffer to another output audio buffer More... | |
| void | SynthLab::copyOutputToOutput (std::shared_ptr< AudioBuffer > source, SynthProcessInfo &destination, uint32_t channel, uint32_t samplesToCopy) |
| copies an output audio buffer to the SynthProcessInfo audio output buffer More... | |
| void | SynthLab::copyBufferToInput (std::shared_ptr< AudioBuffer > source, std::shared_ptr< AudioBuffer > destination, uint32_t channel, uint32_t samplesToCopy) |
| copies an output audio buffer to an input audio buffer More... | |
| void | SynthLab::copyAudioBufferOutputToSynthOutput (std::shared_ptr< AudioBuffer > source, SynthProcessInfo &destination, uint32_t channel, uint32_t samplesToCopy) |
| copies an output audio buffer to the SynthProcessInfo audio output buffer More... | |
| void | SynthLab::copySynthOutputToAudioBufferInput (SynthProcessInfo &source, std::shared_ptr< AudioBuffer > destination, uint32_t channel, uint32_t samplesToCopy) |
| Complementary function that moves audio from the SynthProcessInfo output into an audio buffer. More... | |
| double | SynthLab::normToLogNorm (double normalizedValue) |
| normalized to Log-normalized version More... | |
| double | SynthLab::logNormToNorm (double logNormalizedValue) |
| log-normalized to normalized version More... | |
| double | SynthLab::normToAntiLogNorm (double normalizedValue) |
| normalized to anti-log normalized version More... | |
| double | SynthLab::antiLogNormToNorm (double aLogNormalizedValue) |
| anti-log normalized to normalized version More... | |
| double | SynthLab::getModKnobValueLinear (double normalizedValue, double min, double max) |
| maps a mod-knob value on the range of [0.0, 1.0] to a number on the range [min, max] More... | |
| double | SynthLab::getModKnobValueLog (double normalizedValue, double min, double max) |
| maps a mod-knob value on the range of [0.0, 1.0] to a number on the range [min, max] logarithmically More... | |
| double | SynthLab::getModKnobValueAntiLog (double normalizedValue, double min, double max) |
| maps a mod-knob value on the range of [0.0, 1.0] to a number on the range [min, max] anti-logarithmically More... | |
| double | SynthLab::msecToSamples (double sampleRate, double timeMSec) |
| convert a time in milliseconds to a floating point sample count More... | |
| void | SynthLab::clampMaxValue (double &value, double maxValue) |
| Bound a value to max limits. More... | |
| void | SynthLab::clampMinValue (double &value, double minValue) |
| Bound a value to min limits. More... | |
| void | SynthLab::boundValue (double &value, double minValue, double maxValue) |
| Bound a value to min and max limits. More... | |
| void | SynthLab::boundUIntValue (uint32_t &value, uint32_t minValue, uint32_t maxValue) |
| Bound a uint32_t value to min and max limits. More... | |
| void | SynthLab::boundIntValue (int32_t &value, int32_t minValue, int32_t maxValue) |
| Bound an int32_t value to min and max limits. More... | |
| void | SynthLab::boundValueUnipolar (double &value) |
| Bound a value to [0, +1]. More... | |
| void | SynthLab::boundValueBipolar (double &value) |
| Bound a value to [-1, +1]. More... | |
| void | SynthLab::boundMIDIValueByte (uint32_t &value) |
| Bound a value to 0 and 127 limits. More... | |
| void | SynthLab::boundMIDIValueDoubleByte (uint32_t &value) |
| Bound a value to min and max limits. More... | |
| void | SynthLab::mapDoubleValue (double &value, double min, double max, double minMap, double maxMap) |
| map double on a range of (min, max) to the same double on the range of (minMap, maxMap) More... | |
| void | SynthLab::mapDoubleValue (double &value, double min, double minMap, double slope) |
| map double on a range of (min, max) to the same double on the range of (minMap, maxMap) using a pre-calculated slope variable where: More... | |
| void | SynthLab::mapIntValue (int &value, int min, int max, int minMap, int maxMap, bool roundValue=true) |
| map int on a range of (min, max) to the same int on the range of (minMap, maxMap) More... | |
| void | SynthLab::mapUintValue (uint32_t &value, uint32_t min, uint32_t max, uint32_t minMap, uint32_t maxMap, bool roundValue=true) |
| map unsigned int on a range of (min, max) to the same unsigned int on the range of (minMap, maxMap) More... | |
| uint32_t | SynthLab::mapDoubleToUINT (double value, double min, double max, uint32_t minMap, uint32_t maxMap, bool roundValue=false) |
| map double on a range of (min, max) to a uint32_t on the range of (minMap, maxMap) More... | |
| double | SynthLab::mapUINTToDouble (uint32_t value, uint32_t min, uint32_t max, double minMap, double maxMap) |
| map uint32_t on a range of (min, max) to a double on the range of (minMap, maxMap) More... | |
| double | SynthLab::midi14_bitToBipolar (uint32_t midiDataLSB, uint32_t midiDataMSB) |
| Converts MIDI data bytes 1 and 2 (14-bit) into a bipolar [-1, +1] value. More... | |
| uint32_t | SynthLab::midi14_bitToUnipolarInt (uint32_t midiDataLSB, uint32_t midiDataMSB) |
| Converts MIDI data bytes 1 and 2 (14-bit) into a unipolar value 0 -> 16383. More... | |
| double | SynthLab::midi14_bitToUnipolarDouble (uint32_t midiDataLSB, uint32_t midiDataMSB) |
| Converts MIDI data bytes 1 and 2 (14-bit) into a unipolar double value 0.0 -> 1.0. More... | |
| double | SynthLab::midi14_bitToDouble (uint32_t midiDataLSB, uint32_t midiDataMSB, double minValue, double maxValue) |
| Converts MIDI data bytes 1 and 2 (14-bit) into a double value on the range [minValue, maxValue]. More... | |
| void | SynthLab::unipolarIntToMIDI14_bit (uint32_t unipolarValue, uint32_t &midiDataLSB, uint32_t &midiDataMSB) |
| Converts value from 0 -> 16383 into 14-bit MIDI bytes, pass by reference. More... | |
| void | SynthLab::bipolarIntToMIDI14_bit (int32_t biPolarValue, int32_t minValue, int32_t maxValue, uint32_t &midiDataLSB, uint32_t &midiDataMSB) |
| Converts int value on the range [minValue, maxValue] into 14-bit MIDI bytes, pass by reference. More... | |
| void | SynthLab::unipolarDoubleToMIDI14_bit (double unipolarValue, uint32_t &midiDataLSB, uint32_t &midiDataMSB) |
| Converts double value on the range [0, 1] into 14-bit MIDI bytes, pass by reference. More... | |
| double | SynthLab::midiPitchBendToBipolar (uint32_t midiData1, uint32_t midiData2) |
| Converts MIDI data bytes 1 and 2 into a bipolar [-1, +1] value. More... | |
| double | SynthLab::doUnipolarModulationFromMin (double unipolarModulatorValue, double minValue, double maxValue) |
| Perform unipolar modulation from a min value up to a max value using a unipolar modulator value. More... | |
| double | SynthLab::doUnipolarModulationFromMax (double unipolarModulatorValue, double minValue, double maxValue) |
| Perform unipolar modulation from a max value down to a min value using a unipolar modulator value. More... | |
| double | SynthLab::doBipolarModulation (double bipolarModulatorValue, double minValue, double maxValue) |
| Perform bipolar modulation about a center that his halfway between the min and max values. More... | |
| double | SynthLab::splitBipolar (double value) |
| maps a unipolar value across two unipolar values, from middle More... | |
| double | SynthLab::bipolar (double value) |
| calculates the bipolar [-1.0, +1.0] value FROM a unipolar [0.0, +1.0] value More... | |
| void | SynthLab::bipolarXForm (double &value) |
| identical to bipolar( ) but returns value with pass-by-reference argument More... | |
| double | SynthLab::unipolar (double value) |
| calculates the unipolar [0.0, +1.0] value FROM a bipolar [-1.0, +1.0] value More... | |
| void | SynthLab::unipolarXForm (double &value) |
| identical to unipolar( ) but returns value with pass-by-reference argument More... | |
| double | SynthLab::raw2dB (double raw) |
| calculates dB for given input More... | |
| double | SynthLab::dB2Raw (double dB) |
| converts dB to raw value More... | |
| double | SynthLab::peakGainFor_Q (double Q) |
| calculates the peak magnitude for a given Q More... | |
| double | SynthLab::dBPeakGainFor_Q (double Q) |
| calculates the peak magnitude in dB for a given Q More... | |
| double | SynthLab::applyPhaseDistortion (double mcounter, double x_break, double y_break=0.5) |
| double | SynthLab::sgn (double xn) |
| calculates sgn( ) of input More... | |
| double | SynthLab::calcWSGain (double xn, double saturation, double asymmetry) |
| calculates gain of a waveshaper More... | |
| double | SynthLab::atanWaveShaper (double xn, double saturation) |
| calculates arctangent waveshaper More... | |
| double | SynthLab::tanhWaveShaper (double xn, double saturation) |
| calculates hyptan waveshaper More... | |
| double | SynthLab::softClipWaveShaper (double xn, double saturation) |
| calculates hyptan waveshaper More... | |
| double | SynthLab::fuzzExp1WaveShaper (double xn, double saturation, double asymmetry) |
| calculates fuzz exp1 waveshaper More... | |
| void | SynthLab::copyStingList (std::vector< std::string > &source, std::vector< std::string > &destination) |
| Copies one vector of strings to another. More... | |
| std::string | SynthLab::concatStrings (std::string s1, std::string s2) |
| Concatenate two strings. More... | |
| void | SynthLab::ReplaceSubStrWithStr (std::string &str, const std::string &from, const std::string &to) |
| Helper to relace strings within a std::string object. More... | |
| void | SynthLab::stripLastFolderFromPath (std::string &str) |
| Helper to strip the last folder path from a given path. More... | |
| void | SynthLab::getPluginContainerFolder (std::string &str) |
| Helper to get the outer plugin folder with the inner folder path. More... | |
| double | SynthLab::doLinearInterpolation (double x1, double x2, double y1, double y2, double x) |
| performs linear interpolation of x distance between two (x,y) points; returns interpolated value More... | |
| double | SynthLab::doLinearInterpolation (double y1, double y2, double fractional_X) |
| performs linear interpolation of fractional x distance between two adjacent (x,y) points; returns interpolated value More... | |
| double | SynthLab::doLagrangeInterpolation (double *x, double *y, int n, double xbar) |
| implements n-order Lagrange Interpolation More... | |
| uint32_t | SynthLab::midiNoteNumberFromOscFrequency (double oscillatorFrequency, double frequencyA440=440.0) |
| use lookup table to find pitch shift multipliers, uses linear interpolation More... | |
| double | SynthLab::midiNoteNumberToOscFrequency (uint32_t midiNoteNumber, double frequencyA440=440.0) |
| converts a MIDI note number into a corresponding oscillator frequency in Hz More... | |
| double | SynthLab::calculateWaveTablePhaseInc (double oscFrequency, double sampleRate, uint32_t wavetableLength) |
| calculates the phase-increment for a wavetable for a target oscillator frequency More... | |
| bool | SynthLab::checkAndWrapWaveTableIndex (double &index, uint32_t tableLength) |
| check and do modulo (fmod) wrap of a wavetable index value More... | |
| int | SynthLab::countTrailingZero (int x) |
| count trailing zeros in a binary number More... | |
| uint64_t | SynthLab::countTrailingZeros_x64 (uint64_t x) |
| count trailing zeros in a binary number, return in unsigned int More... | |
| double | SynthLab::doSimpleSineLUT (double angle) |
| double | SynthLab::doSimpleCosineLUT (double angle) |
| void | SynthLab::calculatePanValues (double bipolarModulator, double &leftPanValue, double &rightPanValue) |
| calculates the left and right pan values from a bipolar (-1 -> 1) value More... | |
| void | SynthLab::calculateConstPwrMixValues (double bipolarModulator, double &mixValueA, double &mixValueB) |
| converts bipolar (-1 -> 1) value into a pair of constant power mixing coefficients More... | |
| double | SynthLab::crossfade (XFadeType xfadeType, double inputA, double inputB, double xFrac) |
| crossfade two values And B together by some fractional amount More... | |
| double | SynthLab::semitonesBetweenFrequencies (double startFrequency, double endFrequency) |
| calculates the number of semitones between a start and end frequency More... | |
| double | SynthLab::getTimeFromTempo (double BPM, NoteDuration duration, bool returnMilliseconds=false) |
| converts a BPM value and a NoteDuration into a time More... | |
| double | SynthLab::getTimeFromTempo (double BPM, double normalizedNoteMult) |
| converts a BPM value and a normalized note multiplier on the range [0, 1] to a note duration multiplier More... | |
| double | SynthLab::quantizeBipolarValue (double d, uint32_t qLevels) |
| Quantizes a double value into some number of quantization levels. More... | |
| uint64_t | SynthLab::doubleToUint64 (double d) |
| maps a double value into a uint64 value without casting or mangling bits More... | |
| double | SynthLab::uint64ToDouble (uint64_t u) |
| maps a uint64 value to a double value without casting or mangling bits More... | |
| uint32_t | SynthLab::floatToUint32 (float f) |
| maps a float value to a uint32_t value without casting or mangling bits More... | |
| float | SynthLab::uint32ToFloat (uint32_t u) |
| maps a uint32_t value to a float value without casting or mangling bits More... | |
| bool | SynthLab::inRange (double low, double high, double x) |
| tests a number to see if it is withing a certain range More... | |
| double | SynthLab::wrapMax (double x, double max) |
| wraps a value around a maximum value enough times that it falls within the maximum boundary More... | |
| double | SynthLab::wrapMinMax (double x, double min, double max) |
| wraps a value around a maximum value enough times that it falls within the maximum boundary More... | |
| std::vector< std::string > | SynthLab::charArrayToStringVector (const char **charArray, uint32_t size, std::string ignoreString="") |
| Converts an old fasioned array of char* strings to a vector of std::strings. More... | |
| bool | SynthLab::appendCharArrayToStringVector (const char **charArray, uint32_t size, std::vector< std::string > &outputVector, std::string ignoreString) |
| Appends an old fasioned array of char* strings to a vector of std::strings. More... | |
| double | SynthLab::mmaMIDItoAtten (uint32_t midiValue) |
| calculates the raw attenuation according to MMA DLS spec midiValue = the MIDI (0 -> 127) value to convert More... | |
| VectorXFadeData | SynthLab::calculateVectorMix (double joystick_X, double joystick_Y, double origin_X=0.0, double origin_Y=0.0) |
| converts a joystick (x,y) position into the four mixing coefficients plus the X/Y axis shaodows More... | |
| double | SynthLab::quadraticSine (double angle) |
| produces the quadratic sine approximation More... | |
| double | SynthLab::BhaskaraISine (double angle) |
| produces the Bhaskara's sine approximation More... | |
| double | SynthLab::parabolicSine (double angle) |
| highest accurace sinudoid approximation function More... | |
| double | SynthLab::calculatePitchBend (std::shared_ptr< MidiInputData > midiInputData) |
| Calculate a pitch bend multiplier value based on the global MIDI input values: More... | |
| double | SynthLab::calculatePitchBend (IMidiInputData *midiInputData) |
| Second method to calculate a pitch bend multiplier value based on the global MIDI input values: More... | |
| double | SynthLab::calculateMasterTuning (IMidiInputData *midiInputData) |
| Method to calculate a tuning (pitch bend) multiplier value based on the global MIDI input values: More... | |
| uint32_t | SynthLab::calculateNumTables (uint32_t seedMIDINote, uint32_t tableIntervalSemitones) |
| Calculates the number of wavetables needed to cover the MIDI keyboard starting from a seed note, and them progressing up the keyboard by some number of semitones between each table. More... | |
| double | SynthLab::readHexLUT (uint64_t *table, double xn) |
| Read a table that has been encoded as uint64_t HEX values. More... | |
| double | SynthLab::concaveXForm (double xn, bool useLUT=false) |
| Perform the MMA concave tranform on a unipolar value. More... | |
| double | SynthLab::bipolarConcaveXForm (double xn, bool useLUT=false) |
| Perform the MMA concave tranform on a bipolar value. More... | |
| double | SynthLab::reverseConcaveXForm (double xn, bool useLUT=false) |
| Perform the MMA reverse concave tranform on a unipolar value. More... | |
| double | SynthLab::bipolarReverseConcaveXForm (double xn, bool useLUT=false) |
| Perform the MMA reverse concave tranform on a bipolar value. More... | |
| double | SynthLab::convexXForm (double xn, bool useLUT=false) |
| Perform the MMA convex tranform on a unipolar value. More... | |
| double | SynthLab::bipolarConvexXForm (double xn, bool useLUT=false) |
| Perform the MMA convex tranform on a bipolar value. More... | |
| double | SynthLab::reverseConvexXForm (double xn, bool useLUT=false) |
| Perform the MMA reverse convex tranform on a unipolar value. More... | |
| double | SynthLab::bipolarReverseConvexXForm (double xn, bool useLUT=false) |
| Perform the MMA reverse convex tranform on a bipolar value. More... | |
| double | SynthLab::doPolyBLEP_2 (double mcounter, double phaseInc, double height, bool risingEdge) |
| Calculates the 2nd order polynomial BLEP correction factor. More... | |
| double | SynthLab::doBLEP_N (uint32_t tableLength, double modCounter, double phaseInc, double height, bool risingEdge, uint32_t pointsPerSide, bool interpolate=false) |
| Calculates the BLEP correction factor for 1, 2, 3 or 4 points of correction on each side of the waveform discontinuity. More... | |
| void | SynthLab::initDMConfig (std::shared_ptr< MidiInputData > midiInputData, DMConfig *config) |
| Initializes the MIDI aux data with configuration information; for DM only. More... | |
| void | SynthLab::initMIDIInputData (std::shared_ptr< MidiInputData > midiInputData) |
| Initializes the MIDI input data arrays with values that prevent the synth from appearing to be malfunctioning. This includes bringing volume controls up to unity gain (max output) and pan to the center as well as setting pitch bend range and overall tuning (known as master volume and master tuning in the MMA documentation) More... | |
Variables | |
| const double | SynthLab::kCTCoefficient = 5.0 / 12.0 |
| concave and/or convex transform correction factor More... | |
| const double | SynthLab::kCTCorrFactorZero = pow(10.0, (-1.0 / kCTCoefficient)) |
| concave/convex transform correction factor at x = 0 More... | |
| const double | SynthLab::kCTCorrFactorAnitZero = 1.0 / (1.0 - kCTCorrFactorZero) |
| inverse concave/convex transform factor at x = 0 More... | |
| const double | SynthLab::kCTCorrFactorUnity = 1.0 / (1.0 + kCTCoefficient*log10(1.0 + kCTCorrFactorZero)) |
| concave/convex transform correction factor at x = 1 More... | |
| const double | SynthLab::kCTCorrFactorAntiUnity = 1.0 / (1.0 + (-pow(10.0, (-1.0 / kCTCoefficient)))) |
| inverse concave/convex transform correction factor at x = 1 More... | |
| const double | SynthLab::kCTCorrFactorAntiLog = kCTCoefficient*log10(1.0 + kCTCorrFactorZero) |
| concave/convex transform correction factor More... | |
| const double | SynthLab::kCTCorrFactorAntiLogScale = 1.0 / (-kCTCoefficient*log10(kCTCorrFactorZero) + kCTCorrFactorAntiLog) |
| concave/convex transform scaling factor More... | |
| const double | SynthLab::pdSlope = (0.9 - 0.1) / (1.0 - 0.0) |
| const double | SynthLab::D = 5.0*kPiSqared |
| const double | SynthLab::B = 4.0 / kPi |
| const double | SynthLab::C = -4.0 / (kPiSqared) |
| const double | SynthLab::P = 0.225 |
hard-coded arrays of FIR filter coefficients for the sample rate conversion objects (Interpolator and Decimator)
See also Designing Software Synthesizers in C++ 2nd Ed. by Will Pirkle.
1.8.14