IT1263050B - Metodo per stimare il pitch di un segnale acustico di parlato e sistema per il riconoscimento del parlato impiegante lo stesso - Google Patents

Metodo per stimare il pitch di un segnale acustico di parlato e sistema per il riconoscimento del parlato impiegante lo stesso

Info

Publication number
IT1263050B
IT1263050B ITMI930169A ITMI930169A IT1263050B IT 1263050 B IT1263050 B IT 1263050B IT MI930169 A ITMI930169 A IT MI930169A IT MI930169 A ITMI930169 A IT MI930169A IT 1263050 B IT1263050 B IT 1263050B
Authority
IT
Italy
Prior art keywords
acoustic signal
estimating
pitch
speech
same
Prior art date
Application number
ITMI930169A
Other languages
English (en)
Original Assignee
Alcatel Italia
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alcatel Italia filed Critical Alcatel Italia
Priority to ITMI930169A priority Critical patent/IT1263050B/it
Publication of ITMI930169A0 publication Critical patent/ITMI930169A0/it
Priority to FI935378A priority patent/FI935378A/fi
Priority to JP5309526A priority patent/JPH075889A/ja
Priority to AU53832/94A priority patent/AU669762B2/en
Priority to US08/184,277 priority patent/US5644678A/en
Priority to NZ250769A priority patent/NZ250769A/en
Priority to EP94101167A priority patent/EP0609770A1/en
Publication of ITMI930169A1 publication Critical patent/ITMI930169A1/it
Application granted granted Critical
Publication of IT1263050B publication Critical patent/IT1263050B/it

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/90—Pitch determination of speech signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Auxiliary Devices For Music (AREA)

Abstract

La presente invenzione si riferisce ad un metodo per stimare il pitch di un segnale acustico di parlato e ad un sistema per il riconoscimento del parlato impiegante lo stesso.Nessuno degli algoritmi noti soddisfa pienamente, ciascuno per diverse ragioni: perché richiede calcoli complicati e lunghi, perché bisogna considerare il segnale vocale di parlato per tempi lunghi, perché, nel caso venga commesso un errore di stima, tale errore si trascina sulle stime seguenti, etc..Il metodo oggetto della presente invenzione opera sui picchi del segnale acustico di parlato realizzando una ricerca dei picchi attraverso un criterio bidimensionale tempo-energia, contrariamente ai metodi tradizionali di tipo PAD (Peak Amplitude Detector) in cui il criterio era essenzialmente monodimensionale (solo tempo).
ITMI930169A 1993-02-03 1993-02-03 Metodo per stimare il pitch di un segnale acustico di parlato e sistema per il riconoscimento del parlato impiegante lo stesso IT1263050B (it)

Priority Applications (7)

Application Number Priority Date Filing Date Title
ITMI930169A IT1263050B (it) 1993-02-03 1993-02-03 Metodo per stimare il pitch di un segnale acustico di parlato e sistema per il riconoscimento del parlato impiegante lo stesso
FI935378A FI935378A (fi) 1993-02-03 1993-12-01 Menetelmä akustisen puhesignaalin äänen korkeuden arvioimiseksi sekä menetelmää hyödyntävä puheen tunnistusjärjestelmä
JP5309526A JPH075889A (ja) 1993-02-03 1993-12-09 音声信号のピッチの評価方法およびそれを使用する音声認識システム
AU53832/94A AU669762B2 (en) 1993-02-03 1994-01-18 Speech recognition system
US08/184,277 US5644678A (en) 1993-02-03 1994-01-20 Method of estimating voice pitch by rotating two dimensional time-energy region on speech acoustic signal plot
NZ250769A NZ250769A (en) 1993-02-03 1994-01-27 Speech signal pitch estimation
EP94101167A EP0609770A1 (en) 1993-02-03 1994-01-27 Method of estimating the pitch of a speech acoustic signal and speech recognition system using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI930169A IT1263050B (it) 1993-02-03 1993-02-03 Metodo per stimare il pitch di un segnale acustico di parlato e sistema per il riconoscimento del parlato impiegante lo stesso

Publications (3)

Publication Number Publication Date
ITMI930169A0 ITMI930169A0 (it) 1993-02-03
ITMI930169A1 ITMI930169A1 (it) 1994-08-03
IT1263050B true IT1263050B (it) 1996-07-24

Family

ID=11364835

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI930169A IT1263050B (it) 1993-02-03 1993-02-03 Metodo per stimare il pitch di un segnale acustico di parlato e sistema per il riconoscimento del parlato impiegante lo stesso

Country Status (7)

Country Link
US (1) US5644678A (it)
EP (1) EP0609770A1 (it)
JP (1) JPH075889A (it)
AU (1) AU669762B2 (it)
FI (1) FI935378A (it)
IT (1) IT1263050B (it)
NZ (1) NZ250769A (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI991132A (fi) * 1999-05-18 2000-11-19 Voxlab Oy Menetelmä tutkia näytteistä muodostetun digitaalisen signaalin rytmisy yttä
CN1141698C (zh) * 1999-10-29 2004-03-10 松下电器产业株式会社 对输入语音进行语音识别的音程标准化装置
KR101172715B1 (ko) 2008-09-02 2012-08-14 미츠비시 쥬고교 가부시키가이샤 가선 없는 교통 시스템의 충전 시스템

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4731846A (en) * 1983-04-13 1988-03-15 Texas Instruments Incorporated Voice messaging system with pitch tracking based on adaptively filtered LPC residual signal
US4696038A (en) * 1983-04-13 1987-09-22 Texas Instruments Incorporated Voice messaging system with unified pitch and voice tracking
EP0248593A1 (en) * 1986-06-06 1987-12-09 Speech Systems, Inc. Preprocessing system for speech recognition
US5216747A (en) * 1990-09-20 1993-06-01 Digital Voice Systems, Inc. Voiced/unvoiced estimation of an acoustic signal
FR2670313A1 (fr) * 1990-12-11 1992-06-12 Thomson Csf Procede et dispositif pour l'evaluation de la periodicite et du voisement du signal de parole dans les vocodeurs a tres bas debit.

Also Published As

Publication number Publication date
AU5383294A (en) 1994-08-11
FI935378A0 (fi) 1993-12-01
JPH075889A (ja) 1995-01-10
ITMI930169A1 (it) 1994-08-03
FI935378A (fi) 1994-08-04
US5644678A (en) 1997-07-01
EP0609770A1 (en) 1994-08-10
NZ250769A (en) 1996-06-25
AU669762B2 (en) 1996-06-20
ITMI930169A0 (it) 1993-02-03

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Legal Events

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TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19990129