Functions
| Name | Description |
|---|---|
| AdvanceCircularBuffer | Advance the read position of circular buffer. |
| AlignString | Align string by inserting space. |
| AmpltToDb | Convert amplitude to decibels in place. |
| AmpltToLog | Convert amplitude to logarithmic scale. |
| ArBurg | Modified covariance method for autoregressive parameter estimation. |
| ArBurgSpectrum | Computes a frequency spectrum with the autoregressive Burg method. |
| ArCovariance | Covariance method for autoregressive parameter estimation. |
| ArCovarianceSpectrum | Computes a frequency spectrum with the autoregressive "covariance" method. |
| ArMCovariance | Modified covariance method for autoregressive parameter estimation. |
| ArMCovarianceSpectrum | Computes a frequency spectrum with the autoregressive "modified covariance" method. |
| ArYuleWalker | Yule-Walker (autocorrelation) autoregressive parameter estimation. |
| ArYuleWalkerSpectrum | Computes a frequency spectrum with the autoregressive Yule-Walker method. |
| BandFlip | Flip the frequency band. |
| Bartlett (2) | Bartlett window. |
| BesselI0 | Zeroth-order modified Bessel function of the first kind. |
| BiSpectrum | Compute a part of the bispectrum. |
| BiSpectrumVert | Compute a part of the bispectrum. |
| Blackman (2) | Blackman window. |
| BlackmanExact (2) | Exact blackman window. |
| BlackmanHarris (2) | Blackman-Harris window. |
| BlackmanOptimal | Optimal Blackman window. |
| Chebyshev | Chebyshev's window. |
| CircularBuffer | Copy data to a circular buffer. |
| CircularFrequency | Adjust frequency in radians to fall in range between 0 and 0.5. |
| CircularPhase | Adjust Phase in radians to range between 0 and 2*Pi. |
| ColoredNoiseFIR | Computes FIR filter with desired noise/signal coloring response. |
| ConjExtend (2) | Conjugate extend a frequency spectrum. |
| ConsistentParameterFilter (2) | Param can be boolean. |
| ConsistentParameterInit | Initialize a "consistent parameter" filter. |
| CosineTappered | Cosine tappered window. |
| CplxCepstrum | Compute complex cepstrum. |
| CplxCepstrumInv | Compute the inverse complex cepstrum. |
| Crest (2) | Returns crest factor, for complex data. |
| CZT (4) | Computes the chirp z-transform. |
| CZTInit | Initializes the chirp z-transform. |
| DCCrossingCount (2) | Return the total count of zero crossings within Src starting at index to Index+Len. |
| DcFilter (3) | State parameter holds the filter state. |
| DelayFilter | Filter data with an integer delay filter. |
| DelayFree | Free a delay filter. |
| DelayInit | Initialize an integer delay filter. |
| Demultiplex | Demultiplex a channel. |
| Differentiate | Differentiate the signal. |
| DistinctCDF (2) | Returns a measure for the probability that x belongs to the normal distribution with Mean and StdDev. |
| EnvelopeDetector | Fast envelope detector. |
| ExpAverageFilter (4) | Filter data with an exponential average filter. |
| ExponentWindow | Exponential window. |
| FindNearest | Return the index of the nearest value. |
| FirFilter (4) | Filter data with a FIR filter. |
| FirFree | Free a FIR filter. |
| FirImpulse (2) | Design a FIR filter with rectangular window. |
| FirInit | Initialize a FIR filter. |
| FirInitReal | Filter data with a FIR filter. |
| FlatTop (2) | Flat-top window. |
| FractionalFirImpulse | Design an oversampled FIR filter with rectangular window. |
| FractionalImpulse | Design a fractional delay allpass FIR filter. |
| FractionalKaiser (2) | Fractional Kaiser window. |
| FractionalKaiserImpulse | Design an oversampled FIR filter with a Kaiser window. |
| FrequencyResponse | Compute the frequency response. |
| FrequencyResponseS | Analog (s-domain) complex frequency response of a rational transfer function. |
| Goertz (4) | The Discrete Fourier transformation (DFT) for vector of frequencies. |
| GoertzTwo (2) | The Discrete Fourier transformation (DFT) for given two frequencies. |
| GroupDelay | Computes the group delay of IIR filters. |
| GroupDelay2 | |
| Hamming (2) | Hamming window. |
| Hanning (2) | Hanning (raised-cosine) window. |
| Hilbert | Applies hilbert transform to Src. |
| IirFilter (7) | Filter data with an IIR filter. |
| IirFree | Free an IIR filter. |
| IirInit (2) | Initialize an IIR filter. |
| IirInitBQ | Initialize an IIR filter with second order sections. |
| InitCircularBuffer | Initialize a circular buffer. |
| Integrate | Integrate signal. |
| InverseFilter | Computes FIR filter from specified frequency spectrum. |
| Kaiser (2) | Kaiser window. |
| KaiserBetaFir | Kaiser beta for a FIR filter with a given ripple. |
| KaiserBetaWindow | Returns beta parameter for frequency analysis with the Kaiser window. |
| KaiserBetaWindowAtt | Returns beta parameter for frequency analysis with the Kaiser window. |
| KaiserFirLength | Estimate the length of a windowed FIR filter. |
| KaiserImpulse | Design a FIR filter with a Kaiser window. |
| LogRamp | Compute a logarithmic ramp. |
| MaximumCount | Return the number of peaks. |
| MedianFilter (4) | Filter data with a median filter. |
| MedianFree | Free a median filter. |
| MedianInit | Initialize a median filter. |
| MinimumCount | Return the number of minimums. |
| MonitorCircularBuffer | Monitor the circular buffer. |
| MovingAverageFilter | Filter data with a moving average filter. |
| MovingAverageImpulse | Design an impulse response of a moving average filter. |
| Multiplex | Multiplex a channel. |
| MusicalNotePitch (2) | Returns musical note pitch, the octave and pitch error in Hz. |
| MusicalNotePitchToStr | Returns string representation of TMusicalNotePitch. |
| MusicalScaleInit | Initializes MusicalScale according to Pitch standard and required octave count. |
| NearestDCCrossing | Find the nearest DC crossing. |
| NearestMaximum (2) | Find the nearest peak. |
| NearestMean | |
| NearestMinimum | Find the nearest minumum. |
| NearestZeroCrossing | Find the nearest zero crossing. |
| NextDCCrossing | Locate the next DC crossing. |
| NextMaximum | Locate the next maximum. |
| NextMinimum | Locate the next minimum. |
| NextZeroCrossing | Locate the next zero crossing. |
| NotchFilter | Design a second-order IIR notch (band-reject) filter. |
| Peak (2) | Find the maximum deviation from the aMean for complex data. |
| PeekCircularBuffer | Get the number of available samples within the circular buffer. |
| PhaseUnwrap | Unwrap the phase of the phase spectrum. |
| PhaseWrap | Add phase lag to the unwrapped phase. |
| ReadFromCircularBuffer | Copy data from circular buffer. |
| RealCepstrum | Compute the real cepstrum. |
| RemoveDC (4) | In-place version of the RemoveDC method. |
| ResetCircularBuffer | Reset circular buffer. |
| ResizeCircularBuffer | Resize the circular buffer. |
| RmsOfSpectrum | Compute RMS of a frequency band from the frequency spectrum. |
| RunningAverage (2) | Compute running average on TMtx data. |
| SampleAndDecayFilter | Filter data with a sample-and-decay filter. |
| SampleAndHoldFilter | Filter data with a sample-and-hold filter. |
| SavGolayFilter | Savitzky-Golay FIR smoothing filter. |
| SavGolayImpulse (2) | Design a Savitzky-Golay polynomial smoothing filter. |
| SignalFormatDescription | Returns description of the signal. |
| SignalWindow (2) | Apply a time window function to the signal. |
| SignalWindowToString | Convert a TSignalWindowType to a string. |
| SortConj (2) | Conjugate sort complex values. |
| SpectrumTypeToString | Convert a TSpectrumType type to a string. |
| SquareTone (2) | Generate a square wave function. |
| SquareToneInit | Initialize the generation of a square tone. |
| StdDev (3) | Return standard deviation in aResult. |
| Tone (2) | Generate a sine function. |
| ToneInit | Initialize the generation of a sine function. |
| TriangleTone | Generate a triangle function. |
| TriangleToneInit | Initialize the generation of a triangle function. |
| WritePositionCircularBuffer | Get the index in the buffer where the next block of data will be written. |
| WriteToCircularBuffer | Copy data to circular buffer. |
| ZeroCrossingCount | Return the number of zero crossings. |
Constants
| Name | Type | Value | Description |
|---|---|---|---|
| DspForMtxVec | string | 'DSP Master v6.4' | Product information string. |
| MaxFirLength | Integer | 10000 | Maximum number of taps for FIR filters. |
Records
| Name | Description |
|---|---|
| TCircularBufferState | Type used by circular buffering. |
| TConsistentParam | Filter state type used by ConsistentParameter filter method. |
| TDiffState | Type used by the numerical differentiation routine. |
| TFirState | Filter state used by FIR filtering methods. |
| TIirState | Filter state used by IIR filtering methods. |
| TIntegrateState | Type used by the numerical integration routine. |
| TMedianState | Type used by median filter. |
| TSampleAndHoldState | Filter state used by sample-and-hold filtering routines. |
| TSquareToneState | Type used for square signal function generation. |
| TToneState | Type used for sine function generation. |
| TTriangleState | Type used for triangle tone generation. |
Enumerations
| Name | Description |
|---|---|
| TChannel | Stereo channel selection. |
| TFilterType | Defines FIR filter types. |
| TFractionalImpulse | Set of predefined FIR allpass filters suitable for fractional delay filtering. Filter specifications have been relaxed to allow variation of the amplitude in the stop band between 0 and 1 linear scale, but keeping the ripple specification in the passband. When unclear what to select, falp_60dB is recommended. |
| TGoertzPhaseCorrection | |
| TMonitorMode | Defines signal monitoring type. |
| TMusicalNotePitch | |
| TRunningPhase | Type used by the PhaseUnwrap procedure. |
| TSignalWindowMode | Window function definition. |
| TSignalWindowType | Window function definition. Specifies window function type to be applied to the signal prior to be passed to the FFT algorithm. |
| TSpectrumType | Defines frequency spectrum types. |
| TWaveletDecomp | Defines the result type of wavelet decomposition. |
| TWaveletType | Defines wavelet types. |