TempoTapDegara

streaming mode | Rhythm category

Inputs

  • onsetDetections (real) - per-frame onset detection values

Outputs

  • ticks (real) - the list of resulting ticks [s]

Parameters

  • maxTempo (integer ∈ [60, 250], default = 208) :
    fastest tempo allowed to be detected [bpm]
  • minTempo (integer ∈ [40, 180], default = 40) :
    slowest tempo allowed to be detected [bpm]
  • resample (string ∈ {none, x2, x3, x4}, default = none) :
    use upsampling of the onset detection function (may increase accuracy)
  • sampleRateODF (real ∈ (0, ∞), default = 86.1328) :
    the sampling rate of the onset detection function [Hz]

Description

This algorithm estimates beat positions given an onset detection function. The detection function is partitioned into 6-second frames with a 1.5-second increment, and the autocorrelation is computed for each frame, and is weighted by a tempo preference curve [2]. Periodicity estimations are done frame-wisely, searching for the best match with the Viterbi algorith [3]. The estimated periods are then passed to the probabilistic beat tracking algorithm [1], which computes beat positions.

Note that the input values of the onset detection functions must be non-negative otherwise an exception is thrown. Parameter "maxTempo" should be 20bpm larger than "minTempo", otherwise an exception is thrown.

References:
[1] Degara, N., Rua, E. A., Pena, A., Torres-Guijarro, S., Davies, M. E., & Plumbley, M. D. (2012). Reliability-informed beat tracking of musical signals. Audio, Speech, and Language Processing, IEEE Transactions on, 20(1), 290-301. [2] Davies, M. E., & Plumbley, M. D. (2007). Context-dependent beat tracking of musical audio. Audio, Speech, and Language Processing, IEEE Transactions on, 15(3), 1009-1020. [3] Stark, A. M., Davies, M. E., & Plumbley, M. D. (2009, September). Real-time beatsynchronous analysis of musical audio. In 12th International Conference on Digital Audio Effects (DAFx-09), Como, Italy.

Streaming algorithms

AfterMaxToBeforeMaxEnergyRatio | AllPass | AudioLoader | AudioOnsetsMarker | AudioWriter | AutoCorrelation | BFCC | BPF | BandPass | BandReject | BarkBands | BarkExtractor | BeatTrackerDegara | BeatTrackerMultiFeature | Beatogram | BeatsLoudness | BinaryOperator | BinaryOperatorStream | BpmHistogram | BpmHistogramDescriptors | BpmRubato | CartesianToPolar | CentralMoments | Centroid | ChordsDescriptors | ChordsDetection | Chromagram | Clipper | ConstantQ | Crest | CrossCorrelation | CubicSpline | DCRemoval | DCT | Danceability | Decrease | Derivative | DerivativeSFX | Dissonance | DistributionShape | Duration | DynamicComplexity | ERBBands | EasyLoader | EffectiveDuration | Energy | EnergyBand | EnergyBandRatio | Entropy | Envelope | EqloudLoader | EqualLoudness | FFT | FFTC | FadeDetection | FileOutput | Flatness | FlatnessDB | FlatnessSFX | Flux | FrameCutter | FrameToReal | FrequencyBands | GFCC | GeometricMean | HFC | HPCP | HarmonicBpm | HarmonicMask | HarmonicModelAnal | HarmonicPeaks | HighPass | HighResolutionFeatures | HprModelAnal | HpsModelAnal | IDCT | IFFT | IIR | Inharmonicity | InstantPower | Key | KeyExtractor | LPC | Larm | Leq | LevelExtractor | LogAttackTime | LoopBpmConfidence | LoopBpmEstimator | Loudness | LoudnessEBUR128 | LoudnessEBUR128Filter | LoudnessVickers | LowLevelSpectralEqloudExtractor | LowLevelSpectralExtractor | LowPass | MFCC | Magnitude | MaxFilter | MaxMagFreq | MaxToTotal | Mean | Median | MelBands | MetadataReader | Meter | MinToTotal | MonoLoader | MonoMixer | MonoWriter | MovingAverage | MultiPitchMelodia | Multiplexer | NoiseAdder | NoveltyCurve | OddToEvenHarmonicEnergyRatio | OnsetDetection | OnsetDetectionGlobal | OnsetRate | Onsets | OverlapAdd | Panning | PeakDetection | PercivalBpmEstimator | PercivalEnhanceHarmonics | PercivalEvaluatePulseTrains | PitchContours | PitchContoursMelody | PitchContoursMonoMelody | PitchContoursMultiMelody | PitchFilter | PitchMelodia | PitchSalience | PitchSalienceFunction | PitchSalienceFunctionPeaks | PitchYin | PitchYinFFT | PolarToCartesian | PoolAggregator | PowerMean | PowerSpectrum | PredominantPitchMelodia | RMS | RawMoments | RealAccumulator | ReplayGain | Resample | ResampleFFT | RhythmDescriptors | RhythmExtractor | RhythmExtractor2013 | RhythmTransform | RollOff | SBic | Scale | SilenceRate | SineModelAnal | SineModelSynth | SineSubtraction | SingleBeatLoudness | SingleGaussian | Slicer | SpectralCentroidTime | SpectralComplexity | SpectralContrast | SpectralPeaks | SpectralWhitening | Spectrum | SpectrumCQ | SpectrumToCent | Spline | SprModelAnal | SprModelSynth | SpsModelAnal | SpsModelSynth | StartStopSilence | StereoDemuxer | StereoMuxer | StereoTrimmer | StochasticModelAnal | StochasticModelSynth | StrongDecay | StrongPeak | SuperFluxExtractor | SuperFluxNovelty | SuperFluxPeaks | TCToTotal | TempoScaleBands | TempoTap | TempoTapDegara | TempoTapMaxAgreement | TempoTapTicks | TonalExtractor | TriangularBands | TriangularBarkBands | Trimmer | Tristimulus | TuningFrequency | TuningFrequencyExtractor | UnaryOperator | UnaryOperatorStream | Variance | VectorInput | VectorRealAccumulator | Vibrato | WarpedAutoCorrelation | Windowing | ZeroCrossingRate