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Multiple Fundamental Frequency Estimation By Summing Harmonic Amplitudes

Anssi Klapuri
2006 Zenodo  
Conclusions The principle of summing harmonic amplitudes as given by ( 1 ) is very simple, yet it suffices for predominant-F0 estimation in polyphonic signals provided that the weights g(τ, m) of different  ...  of the amplitudes of its harmonic partials.  ... 
doi:10.5281/zenodo.1416739 fatcat:xjqabeefejgw5pwqebuvn6gcsi

Multiple fundamental frequency estimation using Gaussian smoothness

Antonio Pertusa, Jose M. Inesta
2008 Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing  
A multiple fundamental frequency estimator is the main piece of these systems, whereas tempo detection and key estimation complement them to correctly extract the score.  ...  The best combination is chosen in a frame by frame analysis by applying a set of rules, taking into account the harmonic amplitudes and the spectral smoothness measure described in this work.  ...  CONCLUSIONS AND FUTURE WORK A simple approach for multiple fundamental frequency estimation was presented in this work, yielding competitive results and performance.  ... 
doi:10.1109/icassp.2008.4517557 dblp:conf/icassp/PertusaI08 fatcat:msf3btca6necnlsfgcc2z74dpi

Adaptive Harmonic Spectral Decomposition for Multiple Pitch Estimation

E. Vincent, N. Bertin, R. Badeau
2010 IEEE Transactions on Audio, Speech, and Language Processing  
Multiple pitch estimation consists of inferring the fundamental frequencies and the salience of the notes forming a music signal over short time frames.  ...  One approach is to decompose the short-term magnitude spectrum of the signal into a sum of basis spectra representing individual pitches scaled by time-varying amplitudes, using algorithms such as nonnegative  ...  Acknowledgments We would like to thank Anssi Klapuri for sharing the code of the harmonic sum algorithm, Valentin Emiya for providing information about the MAPS database and MIDI handling in Matlab and  ... 
doi:10.1109/tasl.2009.2034186 fatcat:2fff3cflsve33pxnigubzmqk4m

Speech analysis and synthesis using an AM–FM modulation model

Alexandros Potamianos, Petros Maragos
1999 Speech Communication  
First, multiband demodulation analysis (MDA) is applied to the problem of fundamental frequency estimation using the average instantaneous frequency as estimates of pitch harmonics.  ...  The AM±FM model represents the speech signal as the sum of formant resonance signals each of which contains amplitude and frequency modulation.  ...  multiple) and the fundamental frequency is calculated from the harmonic frequencies by functional minimization.  ... 
doi:10.1016/s0167-6393(99)00012-6 fatcat:w7wckbfrm5dsvhztdhpwaorodq

Extraction of small boat harmonic signatures from passive sonar

George L. Ogden, Lisa M. Zurk, Mark E. Jones, Mary E. Peterson
2011 Journal of the Acoustical Society of America  
The Harmonic Extraction and Analysis Tool (HEAT) estimates the instantaneous fundamental frequency of the harmonic tones, refines the fundamental frequency estimate using a Kalman filter, and automatically  ...  extracts the amplitudes of the harmonic tonals to generate a harmonic signature for the boat.  ...  Signal model Consider a sum of many periodic sinusoidal signals whose frequencies are all harmonically related, being integer multiples of a fundamental frequency.  ... 
doi:10.1121/1.3583500 pmid:21682400 fatcat:flcjbawozvfs7fhkjvgehjbpui

Specmurt Analysis of Polyphonic Music Signals

S. Saito, H. Kameoka, K. Takahashi, T. Nishimoto, S. Sagayama
2008 IEEE Transactions on Audio, Speech, and Language Processing  
In the log-frequency domain, it is formulated as the convolution of a common harmonic structure and the distribution density of the fundamental frequencies of multiple tones.  ...  The fundamental frequency distribution can be found by deconvolving the observed spectrum with the assumed common harmonic structure, where the common harmonic structure is given heuristically or quasi-optimized  ...  This means that if the fundamental frequency changes by , the th harmonic frequency changes by .  ... 
doi:10.1109/tasl.2007.912998 fatcat:ag4nl5umczhdfko7lcrzj3bec4

A Linear Multi-Layer Perceptron for Identifying Harmonic Contents of Biomedical Signals [chapter]

Thien Minh Nguyen, Patrice Wira
2013 IFIP Advances in Information and Communication Technology  
The amplitudes of the fundamental and high-order harmonics can be directly deduced from the combination of the weights. The effectiveness of the approach is evaluated and compared.  ...  Results show clearly that the linear MLP is able to identify in real-time the amplitudes of harmonic terms from measured signals such as electrocardiogram records under noisy conditions.  ...  Harmonics obtained by the neural approaches are multiples of the fundamental frequency f o = 1.2107 Hz while FFT calculates all frequencies directly.  ... 
doi:10.1007/978-3-642-41142-7_27 fatcat:yffxjh63nffvtmt7mblks2tcwy

Design of Digital Constrained Linear Least-Squares Multiple-Resonator-Based Harmonic Filtering

Miodrag D. Kušljević, Vladimir V. Vujičić
2022 Acoustics  
The multiple-resonator (MR) filter structure proposed in previous papers has proven to be a suitable approach to dynamic harmonic analysis.  ...  Although voiced speech signals are physical signals which are approximately harmonic and electric power signals are true harmonic, the algorithms used for harmonic analysis in electric power systems can  ...  Introduction Signals that consist of a sum of sine waves whose frequencies are integral multiples of the lowest frequency (so-called fundamental) are said to be harmonic.  ... 
doi:10.3390/acoustics4010008 fatcat:akpaw4gid5fh5l6azbngkojbra

Robust converter synchronization to a weak grid through a DFT-based Method

António P. Martins, José C. Ferreira
2006 The Renewable Energies and Power Quality Journal (RE&PQJ)  
Phasor estimation and symmetrical components estimation is a fundamental task in power electronics converters control.  ...  The paper accurately describes the DFT errors under frequency variation, decaying DC components and harmonics, and analyzes the instantaneous phasor estimation, with absolute and recursive algorithms.  ...  The temporal information loss caused by the transformation is recovered by analyzing the signal in just one temporal window with duration of one or a multiple of the fundamental period of the analyzed  ... 
doi:10.24084/repqj04.229 fatcat:v5ruk2y2dvbvja6hdhhoysrim4

Variable Order Harmonic Sinusoidal Parameter Estimation for Speech and Audio Signals

Mads Groesboll Christensen, Soren Holdt Jensen
2006 2006 Fortieth Asilomar Conference on Signals, Systems and Computers  
Aside from the order, the proposed method estimates the noise parameters, the fundamental frequency and the phase and amplitude of the individual harmonics.  ...  The signal is modeled as a sum of harmonically related sinusoids in colored Gaussian noise.  ...  These signals can, for a particular segment, be modeled as a sum of harmonically related sinusoids, meaning that the frequencies of the individual sinusoids are integer multiples of a fundamental frequency  ... 
doi:10.1109/acssc.2006.354929 fatcat:mj7ay2zmczexnhvcre75khgegu

Resolving inconsistencies in three-phase current measurements

Andrew Urquhart, Murray Thomson
2017 CIRED - Open Access Proceedings Journal  
Several possible explanations for this are explored, showing that calculations of the voltage drop and losses are more accurate if harmonics are included.  ...  More generally, feeder configurations are described in which the currents may not sum to zero.  ...  ACKNOWLEDGEMENTS This work was supported by the Engineering and Physical Sciences Research Council (EPSRC), UK (EP/I031707/1 and voucher 11220756) and by E.ON UK.  ... 
doi:10.1049/oap-cired.2017.1267 fatcat:f6acii5nkbhy3k3n6esnbv7opu

Pulse Inversion Techniques in Ultrasonic Nonlinear Imaging

Che-Chou Shen, Yi-Hong Chou, Pai-Chi Li
2005 Journal of Medical Ultrasound  
Improvements in image contrast with the PI technique in both tissue harmonic imaging and contrast harmonic imaging are discussed in detail.  ...  For contrast imaging, contrast between the agents and surrounding tissues are also enhanced with this technique by distinguishing nonlinear microbubbles from the background in either Doppler domain or  ...  This process is referred to as finite amplitude distortion, which is characterized by the generation of harmonic signals whose frequencies are at multiples of the original transmit frequency.  ... 
doi:10.1016/s0929-6441(09)60073-4 fatcat:7d3mq2l7ffacjbzq4d6xosvk2y

Multiple fundamental frequency estimation based on harmonicity and spectral smoothness

A.P. Klapuri
2003 IEEE Transactions on Speech and Audio Processing  
Multiple Fundamental Frequency Estimation Based on Harmonicity and Spectral Smoothness Anssi P.  ...  Multiple fundamental frequency estimation was performed for random sound source and pitch combinations.  ... 
doi:10.1109/tsa.2003.815516 fatcat:hsq52iynorgzlka66e4tok4nyi

Implementation and Test of an Online Embedded Grid Impedance Estimation Technique for PV Inverters

L. Asiminoaei, R. Teodorescu, F. Blaabjerg, U. Borup
2005 IEEE transactions on industrial electronics (1982. Print)  
By injecting a noncharacteristic harmonic current and measuring the grid voltage response it is possible to evaluate the grid impedance directly by the PV inverter, providing a fast and low-cost implementation  ...  This paper also presents a new impedance estimation method including typical implementation problems encountered, and it also presents adopted solutions for online grid impedance measurement.  ...  The frequency of 75 Hz is not an integer multiple of the fundamental frequency.  ... 
doi:10.1109/tie.2005.851604 fatcat:rozdvb53crhsrnc7fnntslkqgq

Power Quality Enhancement Through Robust Symmetrical Components Estimation in Weak Grids [chapter]

Antonio Pina
2013 Power Quality Issues  
The temporal information loss caused by the transformation is recovered by analyzing the signal in just one temporal window with duration of one or a multiple of the fundamental period of the analyzed  ...  As in symmetrical components estimation as in amplitude detection and frequency estimation the perturbations are important but are correctly handled by the DFT-based estimation method.  ... 
doi:10.5772/53138 fatcat:jdspu24e3bh53epl4avrfnq2hq
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