About: A Pitch Detection Algorithm for Continuous Speech Signals Using Viterbi Traceback with Temporal Forgetting

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Description	This paper presents a pitch-detection algorithm (PDA) for application to signals containing continuous speech. The core of the method is based on merged normalized forward-backward correlation (MNFBC) working in a time domain with the ability to make basic voicing decision. Viterbi traceback procedure is used for post-processing the MNFBC output considering the three best fundamantal frequencies (F0) in each step. This should make the pitch contour smoother and should also prevent octave errors. In transition probabilities computation between F0 candidates, two major improvements were made over existing post-processing methods. Firstly, we compare pitch distance in musical cents. Secondly, temporal forgetting is applied to avoid penalizing pitch jumps after prosodic pauses of one speaker or changes in pitch in dialog turn-takings. Results computed on a pitch-reference database show the benefit of the first improvement, but they have not yet proved any benefit of the second. This paper presents a pitch-detection algorithm (PDA) for application to signals containing continuous speech. The core of the method is based on merged normalized forward-backward correlation (MNFBC) working in a time domain with the ability to make basic voicing decision. Viterbi traceback procedure is used for post-processing the MNFBC output considering the three best fundamantal frequencies (F0) in each step. This should make the pitch contour smoother and should also prevent octave errors. In transition probabilities computation between F0 candidates, two major improvements were made over existing post-processing methods. Firstly, we compare pitch distance in musical cents. Secondly, temporal forgetting is applied to avoid penalizing pitch jumps after prosodic pauses of one speaker or changes in pitch in dialog turn-takings. Results computed on a pitch-reference database show the benefit of the first improvement, but they have not yet proved any benefit of the second. (en)
Title	A Pitch Detection Algorithm for Continuous Speech Signals Using Viterbi Traceback with Temporal Forgetting A Pitch Detection Algorithm for Continuous Speech Signals Using Viterbi Traceback with Temporal Forgetting (en)
skos:prefLabel	A Pitch Detection Algorithm for Continuous Speech Signals Using Viterbi Traceback with Temporal Forgetting A Pitch Detection Algorithm for Continuous Speech Signals Using Viterbi Traceback with Temporal Forgetting (en)
skos:notation	RIV/68407700:21230/11:00183926!RIV12-GA0-21230___
http://linked.open...avai/predkladatel	Fakulta elektrotechnická
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GA102/08/0707), P(GD102/08/H008)
http://linked.open...iv/cisloPeriodika	5
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Bartošek, Jan
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta elektrotechnická
http://linked.open...dnocenehoVysledku	184056
http://linked.open...ai/riv/idVysledku	RIV/68407700:21230/11:00183926
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	PDA; fundamental frequency; Viterbi; temporal forgetting; MNFBC; speech processing (en)
http://linked.open.../riv/klicoveSlovo	PDA MNFBC Viterbi fundamental frequency speech processing temporal forgetting
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[784DFAF717E8]
http://linked.open...i/riv/nazevZdroje	Acta Polytechnica
http://linked.open...in/vavai/riv/obor	JD
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	1 (xsd:int)
http://linked.open...vavai/riv/projekt	Speech Recognition under Real-World Conditions Analysis and modelling biomedical and speech signals
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	51
http://linked.open...iv/tvurceVysledku	Bartošek, Jan
issn	1210-2709
number of pages	6 (xsd:int)
http://localhost/t...ganizacniJednotka	21230
is http://linked.open...avai/riv/vysledek of	A Pitch Detection Algorithm for Continuous Speech Signals Using Viterbi Traceback with Temporal Forgetting A Pitch Detection Algorithm for Continuous Speech Signals Using Viterbi Traceback with Temporal Forgetting

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