Marsyas
0.6.0-alpha
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These MarSystems process realvecs. There is a separate list of simple processing blocks; this list includes both simple and advanced processing blocks. More...
Data Structures | |
class | ADSR |
Attack-Decay-Sustain-Release envelope. More... | |
class | BeatAgent |
Entity representing a given {period, phase} hypothesis regarding a train of beat positions paced by the following tempo. A set of initial agents are feeded by the initial hypothesis given by an initial tempo induction stage. Each BeatAgent is recursively evaluated in real-time, by a given score function (heuristics), around each predicted beat. According to the goodness-of-fit between each agent's prediction and the correspondent local maxima in the observed data (given by the onset detection function calculated by the Spectral Flux) the agent's current score is incremented or decremented, calling for the creation of new agents (children) when large discrepancies are observed. More... | |
class | BeatPhase |
Given a periodicity calculate best matching phase. More... | |
class | BeatReferee |
Central agency responsible for causally evaluating a pool of active BeatAgents around each beat prediction, and selecting the best one at each time ("frame" - tick), based on a given heuristics (score function) which affers the goodness-of-fit between each agent prediction and local maxima in the observed data (given by the onset detection function calculated by the Spectral Flux). More... | |
class | BeatTimesSink |
Outputs predicted beat times (in seconds or "frames"-ticks) and/or the median IBI (in BPMs). More... | |
class | Biquad |
Filter a Signal. More... | |
class | CARFAC |
CAR-FAC model of auditory processing in the cochlea. More... | |
class | Cartesian2Polar |
Conversion of complex values from cartesian to polar form. More... | |
class | ChromaFilter |
Tuning Estimation Filterbank. More... | |
class | Clip |
Clip. More... | |
class | Combinator |
Combine observations by summing, multiplying, or picking largest or smallest of their respective sample values. More... | |
class | CompExp |
Compressor/Expander. More... | |
class | Compressor |
class | Deinterleave |
Reorder input along observations. More... | |
class | DeInterleaveSizecontrol |
Reorder input observations. More... | |
class | Delay |
Delay. More... | |
class | DelaySamples |
Simple MarSystem that shifts samples back in time. More... | |
class | Delta |
Delta of input sequence. More... | |
class | DeltaFirstOrderRegression |
Calculate simple time domain delta in first order regression fashion. More... | |
class | Differentiator |
Calculate the difference of successive input samples. More... | |
class | DownSampler |
Downsample the input signal by dropping samples. More... | |
class | Envelope |
Linear attack-release envelope. More... | |
class | ERB |
ERB Filterbank. More... | |
class | Filter |
Filter a Signal. More... | |
class | FullWaveRectifier |
Full wave rectification: take the absolute value of all samples. More... | |
class | Gain |
Multiply input realvec with a fixed value. More... | |
class | HalfWaveRectifier |
Negative values are trimmed to zero, positive values are kept. More... | |
class | HarmonicStrength |
Calculates the relative strength of harmonics. More... | |
class | Inject |
Inject a vector specified by the mrs_realvec/inject control into the datastream. More... | |
class | Limiter |
class | LyonPassiveEar |
Lyon filterbank. More... | |
class | MarSystemTemplateBasic |
Basic example on how to use controls efficiently in MarSystems. More... | |
class | MathPower |
each output = pow(input, x). Supports decimal exponents (i.e. taking the nth root). More... | |
class | MedianFilter |
Apply median filter on input vector. More... | |
class | Memory |
Collects and outputs N past input samples. More... | |
class | MixToMono |
Mix the input channels (observations rows) into one output observation channel. More... | |
class | Mono2Stereo |
Convert mono to stereo by copying. More... | |
class | Negative |
Toggle the sign of the input samples. More... | |
class | NoiseGate |
class | Norm |
Normalize each observation channel separately per slice. More... | |
class | Normalize |
Normalize my mapping min/max range to user specified range. More... | |
class | NormalizeAbs |
Normalize each observation channel by absolute value. More... | |
class | NormMatrix |
Normalize the input data slice as a whole. More... | |
class | NormMaxMin |
Normalize by mapping min/max range to user specified range. More... | |
class | OnePole |
Simple one-pole digital filter. More... | |
class | OnsetTimes |
Retrieves M first beat times (phases, in "frames"-ticks), retrieved from peaks from an onset function. More... | |
class | OrcaSnip |
class | OverlapAdd |
OverlapAdd. More... | |
class | Panorama |
Amplitude Panning to move single broadband source to an azimuth angle. More... | |
class | ParallelMatrixWeight |
Multiply each observation with a different factor. More... | |
class | PatchMatrix |
Linear Combine Each input channel (i.e. observation) with each other channel the weights for the combinations can be provided through the weights control: each column of the weights control contains the weight for the input channel (i.e. row) with the same number indexwise. Sets of weight for each channel are expected to be found within same channel of the weights control. A constant vector can also be provided in the consts control to set the offset for each channel respectively. More... | |
class | PeakEnhancer |
Enhance peaks that are harmonic. More... | |
class | PeakFeatureSelect |
This MarSystem takes a realvec with peak information (using peakView) and allows to select which peak features should be sent to the output. Used for similarity computations on peaks. More... | |
class | PeakPeriods2BPM |
PeakPeriods2BPM: convert peaks to beats per minute. More... | |
class | PeakRatio |
Incorporates the ratio of the higest peak to minimal/average peak of each observation samplewise to the output vector. More... | |
class | PeakSynthFFT |
perform amplitude modification of Power Spectrum using Peaks Info More... | |
class | PeakSynthOsc |
Multiply with window (both length Nw) using modulus arithmetic; fold and rotate windowed input into output array (FFT) (length N) according to current input time (t). More... | |
class | PhaseLock |
Retrieves the N best {period, phase} hypotheses by affering the phase more suited to each period (by correlating each of the N*M hypotheses with the onset detection function within the initial induction window). Besides, it tries to infer the correct metre (duple or triple) by atributing the correspondent hierarchical set of initial scores, normalized in accordance to the weigth imposed by the time of the initial induction window. It supports ground-truth mode which inputs the first two beats retrieved from a ground-truth beat times annotation file, for initially assigning (only) one agent with the ground-truth period and phase. More... | |
class | Polar2Cartesian |
Conversion of complex values from polar to cartesian form. More... | |
class | Product |
Multiplies observations together. Used for ring modulation. More... | |
class | PvConvert |
class | PvConvolve |
class | PvFold |
class | PvOverlapadd |
class | PvUnconvert |
class | Ratio |
Ratio of observations to first observation. More... | |
class | RemoveObservations |
Removes observations outside a given range. More... | |
class | Resample |
Resampling in linear, bezier, nearest-neighbour, or sinc mode. More... | |
class | ResampleBezier |
Resamples each observation using a piecewise cubic bezier polynomial for interpolation. More... | |
class | ResampleLinear |
Stretch samples using linear interpolation. More... | |
class | ResampleNearestNeighbour |
Stretch samples using the samples' nearest neighbours. More... | |
class | ResampleSinc |
Resamples each observation using a sum of sinc functions. More... | |
class | Reverse |
Reverse the input samples (i.e. first samples become last and vice-versa) More... | |
class | Shifter |
Shifts the input and outputs the original and shifted version. More... | |
class | ShiftInput |
Apply sliding window with certain hop size and window size. More... | |
class | ShiftOutput |
Pass on N amount of samples from the input vector. More... | |
class | Signum |
Compute sign of input vector: output vector is 1 for strictly positive observations, 0 for the rest. More... | |
class | SimulMaskingFft |
Return only the power spectrum components above the masking threshold. More... | |
class | SliceDelta |
Takes the difference (delta) between successive input slices. More... | |
class | SliceShuffle |
Shuffle the incoming slices randomly. More... | |
class | SpectralTransformations |
Various spectral transformations. Input and output are complex spectrums. Mainly used to demonstrate how spectral analyis works. More... | |
class | Spectrum2ACMChroma |
Transform an (amplitude) spectrum to a chroma profile. More... | |
class | Square |
Squares input samples. More... | |
class | StretchLinear |
Stretches samples using linear interpolation. More... | |
class | Subtract |
Subtracts one observation from another. More... | |
class | SubtractMean |
Subtract the mean of each observation channel. More... | |
class | Sum |
Sum the input rows of observations into one row. More... | |
class | SVFilter |
State Variable Filter. More... | |
class | TempoHypotheses |
Organizes a NN x 3 matrix given NN = N x M raw {period, phase, periodSalience} hypotheses. (if no periods were retrieved some manually defined periods will be assumed) More... | |
class | TimeFreqPeakConnectivity |
Uses dynamic programming to create a (symmetric) distance matrix between the series of peaks at the inputs. More... | |
class | Transposer |
Switches samples and observations. More... | |
class | Unfold |
Unfold two-dimensional realvec into one-dimensional realvec. More... | |
class | Vibrato |
Applies vibrato using time-varying delay. More... | |
class | Whitening |
Changes a spectrum so that all bins have the same phase, but magnitude equal to 1. More... | |
class | Windowing |
Apply a windowing function (envelope) to the input signal. More... |
These MarSystems process realvecs. There is a separate list of simple processing blocks; this list includes both simple and advanced processing blocks.