nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: Pitch detection using a Schmitt trigger nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: The kurtosis is a measure of the flatness of the spectrum, computed from the fourth order moment. nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: This function returns the bin number below which 95% of the spectrum energy is found. nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: Modified Kullback-Liebler onset detection function. nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: This method computes the High Frequency Content (HFC) of the input spectral frame. The resulting function is efficient at detecting percussive onsets nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: The spectral decrease is another representation of the decreasing rate, based on perceptual criteria. nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: Kullback-Liebler onset detection function. nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: Generic method for pitch detection nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: Pitch detection using a fast harmonic comb filter nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: Computes the onset detection function and detect peaks in these functions. When onsets are found above a given silence threshold, and after a minimum inter-onset interval, the output vector returned by aubio_onset_do is filled with 1. Otherwise, the output vector remains 0 nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: This object implements a phase vocoder. The spectral frames are computed using a HanningZ window and a swapped version of the signal to simplify the phase relationships across frames. The window sizes and overlap are specified at creation time. nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: The spectral slope represents decreasing rate of the spectral amplitude, computed using a linear regression. nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: These functions are designed to raise at notes attacks in music signals. nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: Second order Infinite Impulse Response filter. nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: A C-weighting digital filter, which reduces low and high frequencies and enhance the middle ones to reflect the ability of the human hearing. nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: The skewness is computed from the third order moment of the spectrum. A negative skewness indicates more energy on the lower part of the spectrum. A positive skewness indicates more energy on the high frequency of the spectrum. nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: Beat tracking using a context dependant model. nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: Pitch detection using multiple-comb filter nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: Complex Domain Method onset detection function. nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: Tempo detection driver. This object stores all the memory required for tempo detection algorithm and returns the estimated beat locations. nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: The spectral centroid represents the barycenter of the spectrum. nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: Pitch detection using the YIN algorithm nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: This object resamples an input vector into an output vector using libsamplerate. nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: Spectral Flux nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: The spectral spread is the variance of the spectral distribution around its centroid. nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: Peak picking utilities function nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: Transient / Steady-state Separation (TSS) nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: This object stores a digital filter of order N. nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: Mel-frequency cepstrum coefficients object nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: Pitch detection using a spectral implementation of the YIN algorithm nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: Mel frequency filter bank coefficients. Set filter bank coefficients to Mel frequency bands nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: Phase Based Method onset detection function. nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: An A-weighting digital filter, which reduces low and high frequencies and enhance the middle ones to reflect the ability of the human hearing. nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: This function calculates the local energy of the input spectral frame. nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: Spectral difference method onset detection function. nothing@18: nothing@18: nothing@18: nothing@18: nothing@18: Spectral shape descriptors nothing@18: nothing@18: nothing@18: