Voice processing apparatus and program

JP 2006-113439 4/2006
OTHER PUBLICATIONS

Tomoko Matsui, Article entitled: “Speaker Recognition using
HMM”, Technical report of IEICE, The Institute of Electronics,
Information and Communication Engineers (IEICE), Jan. 1996, SP
95-111, pp. 17 to 24.

Shoji Hayakawa et al., Article entitled: “Speaker recognition using
individual information in harmonic structure of linear predictive
residual spectrum” Journal of IEICE, The Institute of Electronics,
Information and Communication Engineers (IEICE), Sep. 1997, A
vol. J80-1 No. 9, pp. 1360 to 1367. English translation ofAbstract
attached.

Michiko Kazama, Mikio Tohyama and Yoshio Yamasaki, Article entitled: “Talker Identification using Narrow-band Envelope Correlation Matrix”, published at The Institute of Electronics, Information and Communication Engineers (IEICE), in Mar. 2002.

Notification of Reasons for Rejection for Japanese Patent Application No. 2006-349210, mailed Nov. 25, 2008 (6 pages).

* cited by examiner

Primary Examiner * Talivaldis Ivars Smits
Assistant Examiner * Shaun Roberts
(74) Attorney, Agent, or Firm * Morrison & Foerster LLP

(57) ABSTRACT

A voice processing apparatus has a storage device that stores registration information containing a characteristic parameter of a given voice. The voice processing apparatus is further provided with a judgment unit, a management unit and a notification unit. The judgment unit judges whether an input

(56) References Cited _ _ _ _ _ . vorce 1s approprrate or not for creatrng or updatrng the reg1sU_S_ PATENT DOCUMENTS tration information based on a degree of a difference between * an rnter-band correlatron matrrx of an input vorce acqurred 2 .,. IS;il:)ieet"a'1': """"""""" this time and an inter-band correlation matrix of another input 437203863 A >l< 1/1988 Li et al, 704/247 voice that is judged as being appropriate last time. The man5,095,508 A * 3/1992 Fujimoto _ ...... .. 704/247 agement unit creates or updates the registration information 5,583,961 A * 12/1996 Pawlewskl et a1~ ~~~~~~~~~ ~~ 704/241 based on a characteristic parameter of the input voice when 6’249’760 B1 6/2001 Bossemeyer’ Jr‘ the judgment unit judges that the input voice is appropriate. FOREIGN PATENT DOCUMENTS The notification unit notifies a speaker of the input voice EP 1001407 1/2001 when the judgment unit judges that the input voice is inapGB 2346001 7/2000 Propriata JP 2000-155600 6/2000 JP 2004-271596 9/2004 6 Claims, 7 Drawing Sheets I 11 12 I5 —~| NOTIFICATION UNIT NFEWAL s IUDCMI=_N'r €I1::I'Ir1EC'I"IoN -1“? UNIT 66 V OUTPUT DEVICE R 34 /35 I SIDECTION UNTTICJ-I 001/IPARISON UNIT I r31 r32 CB 33 INTERVAL SIN EX'I‘RACTIONS5II\ICI§I‘ S IUDG1\/IEITI’ DETECTION —IN- UNIT UNIT —-I NOTIFICATION UNIT I -\-3) 36

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Fl G . 2
IDENTIFICATION CHARACTERISTIC #0
INFORMATION PARAMETER
Id_1 CA_1 R
Id_2 CA_Z ‘ R
Id_8 CA_3 ‘ R
F I G . 3

3'“ VOICE IS \ NO
APPROPRIATE. / SAG

‘YES ( SA5\__ EXTRACT CHARACTERISTIC NOTIFY THAT VOICE PARAMETER CA 15 INAPPROPRIATE II k LOOP PROCESSING )

I

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NO II SB9 —< CO . 5 SBI\ I 356

SBIO \ YES g I I OUTPUT OUTPUT NOTIFY THAT AUTHENTICATION AUTHENTICATION VOICE IS FAILURE SUCCESS INAPPROPRIATE