FI115569B - Ljudsignalsbehandlingsanordning - Google Patents
Ljudsignalsbehandlingsanordning Download PDFInfo
- Publication number
- FI115569B FI115569B FI910293A FI910293A FI115569B FI 115569 B FI115569 B FI 115569B FI 910293 A FI910293 A FI 910293A FI 910293 A FI910293 A FI 910293A FI 115569 B FI115569 B FI 115569B
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- Finland
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- signal
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- analysis period
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- Prior art date
Links
- 238000012545 processing Methods 0.000 title description 71
- 230000015654 memory Effects 0.000 claims description 93
- 238000001514 detection method Methods 0.000 claims description 91
- 238000000034 method Methods 0.000 claims description 4
- 235000015141 kefir Nutrition 0.000 claims description 3
- 238000004458 analytical method Methods 0.000 description 247
- 230000005236 sound signal Effects 0.000 description 42
- 238000010586 diagram Methods 0.000 description 22
- 230000000737 periodic effect Effects 0.000 description 13
- 230000000694 effects Effects 0.000 description 8
- 230000009089 cytolysis Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 230000002829 reductive effect Effects 0.000 description 5
- 230000007257 malfunction Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 230000036962 time dependent Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000030808 detection of mechanical stimulus involved in sensory perception of sound Effects 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 206010002953 Aphonia Diseases 0.000 description 1
- 238000012935 Averaging Methods 0.000 description 1
- 241000287828 Gallus gallus Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000013479 data entry Methods 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 101150064967 pef-1 gene Proteins 0.000 description 1
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- 230000001629 suppression Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- G10L25/78—Detection of presence or absence of voice signals
-
- 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
- G10L25/78—Detection of presence or absence of voice signals
- G10L2025/783—Detection of presence or absence of voice signals based on threshold decision
- G10L2025/786—Adaptive threshold
-
- 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
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0208—Noise filtering
- G10L21/0216—Noise filtering characterised by the method used for estimating noise
-
- 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
- G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
- G10L25/24—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being the cepstrum
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Computational Linguistics (AREA)
- Acoustics & Sound (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Electrophonic Musical Instruments (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Selective Calling Equipment (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Claims (4)
1. Talsignaldetekteringsanordning, kännetecknad avatt den omfattar 5 ett kepstrumberäknande medel (1, 5, 11) för att bilda ett kepstrum av en ingängssignal, ett medelvärdesberäkningsmedel (2, 7, 13) för att bilda ett kep-strummedelvärde frän kepstrumutgängen frän det kepstrumberäknande medlet (1, 5,11) över ett givet kvefrensintervall, 10 ett tröskelinställande medel (4,10, 18) för att ställa in en taldetekte- ringströskelnivä pä basis av kepstrummedelvärdet frän medelvärdesberäk-ningsmedlet (2, 7,13), och ett ljuddetekteringsmedel (3, 8, 9,14 -17), tili vilket kepstrummedelvärdet frän medelvärdesberäkningsmedlet (2, 7, 13), kepstret frän det keps- 15 trumberäknande medlet (1, 5, 11) och den utgäende tröskelsignalen frän det tröskelinställande medlet (4, 10, 18) mätäs och som jämför ett utgäende kepstrum, som överstiger nämnda utgäende kepstrums medelvärde, med nämnda utgäende tröskelsignal för att detektera närvaron/fränvaron av en talsignal i ingängssignalen.
2. Signaldetekteringsanordning enligt patentkrav 1, k ä n n e - ]: tecknad avatt: nämnda ljuddetekteringsmedel (3, 8, 9, 14 - 17) uppvisar en keps-trumadderingssektion (8, 14) för att addera ett kepstrumvärde, som överstiger ·. kepstrummedelvärdet och en komparator (9, 15) för att jämföra den kepstrum- 25 adderade utgängen frän nämnda kepstrumadderingssektion (8, 14) med nämnda utgäende tröskelsignal.
’ * 3. Signaldetekteringsanordning enligt patentkrav 1, känne tecknad avatt nämnda ljuddetekteringsmedel (3, 8, 9,14 -17) uppvisar: t en n-ställig första minnesgrupp (16) för lagring av nämnda kep- 30 strum, • ett flertal n andra minnesgrupper (17) för lagring av nämnda kep- ·. strums medelvärde, ; ’ en kepstrumadderingssektion (14) för addering av det första min- “ : nets utgäng, som överstiger utgängen frän den andra minnesgruppen (17), .,.: 35 som motsvarar nämnda första minne (16), och 31 115569 en komparator (15) för jämförelse av den kepstrumadderade ut-gängen frän kepstrumadderingssektionen (14) med den utgäende tröskelsig-nalen frän nämnda tröskelinställande medel (18).
4. Talsignaldetekteringsförfarande, kännetecknat av att det 5 omfattar följande steg: beräkning av ett kepstrum för bildande av ett kepstrum av en in-kommande signal, beräkning av ett medelvärde över ett givet kvefrensintervall av keps-trumutgängen fran kepstrumberäkningssteget, 10 inställning av en tröskel för inställning av en taldetekteringströskel- nivä pä basis av kepstrummedelvärdesutgangen frän medelvärdesberäknings-steget, och detektering av närvaron/fränvaron av en talsignal i ingängssignalen genom jämförelse av en kepstrumutgang, som överstiger kepstrummedelvär-15 desutgangen frän medelvärdesberäkningssteget med tröskelutgängssignalen frän tröskelinställningssteget. » « ft
Applications Claiming Priority (12)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP859590 | 1990-01-18 | ||
| JP2008595A JP2712692B2 (ja) | 1990-01-18 | 1990-01-18 | 信号制御装置 |
| JP859290 | 1990-01-18 | ||
| JP2008592A JP2712691B2 (ja) | 1990-01-18 | 1990-01-18 | 信号処理装置 |
| JP1734890 | 1990-01-26 | ||
| JP2017348A JPH03220600A (ja) | 1990-01-26 | 1990-01-26 | 音声検出装置 |
| JP2650690 | 1990-02-06 | ||
| JP2026506A JP2712703B2 (ja) | 1990-02-06 | 1990-02-06 | 信号処理装置 |
| JP2650790 | 1990-02-06 | ||
| JP2026507A JP2712704B2 (ja) | 1990-02-06 | 1990-02-06 | 信号処理装置 |
| JP3429790 | 1990-02-14 | ||
| JP2034297A JP2712708B2 (ja) | 1990-02-14 | 1990-02-14 | 音声検出装置 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI910293A0 FI910293A0 (fi) | 1991-01-18 |
| FI910293A FI910293A (fi) | 1991-07-19 |
| FI115569B true FI115569B (sv) | 2005-05-31 |
Family
ID=27548141
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI910293A FI115569B (sv) | 1990-01-18 | 1991-01-18 | Ljudsignalsbehandlingsanordning |
| FI20030089A FI116595B (sv) | 1990-01-18 | 2003-01-21 | Ljudsignalsbehandlingsanordning |
| FI20030087A FI117953B (sv) | 1990-01-18 | 2003-01-21 | Ljudsignalsbehandlingsanordning |
| FI20030088A FI116594B (sv) | 1990-01-18 | 2003-01-21 | Ljudsignalsbehandlingsanordning |
Family Applications After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI20030089A FI116595B (sv) | 1990-01-18 | 2003-01-21 | Ljudsignalsbehandlingsanordning |
| FI20030087A FI117953B (sv) | 1990-01-18 | 2003-01-21 | Ljudsignalsbehandlingsanordning |
| FI20030088A FI116594B (sv) | 1990-01-18 | 2003-01-21 | Ljudsignalsbehandlingsanordning |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US5195138A (sv) |
| EP (4) | EP0614171B1 (sv) |
| KR (1) | KR960005739B1 (sv) |
| AU (1) | AU644124B2 (sv) |
| CA (1) | CA2034333C (sv) |
| DE (4) | DE69130294T2 (sv) |
| FI (4) | FI115569B (sv) |
| HK (4) | HK184795A (sv) |
| NO (4) | NO306489B1 (sv) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5414674A (en) * | 1993-11-12 | 1995-05-09 | Discovery Bay Company | Resonant energy analysis method and apparatus for seismic data |
| US5502717A (en) * | 1994-08-01 | 1996-03-26 | Motorola Inc. | Method and apparatus for estimating echo cancellation time |
| JP4307557B2 (ja) | 1996-07-03 | 2009-08-05 | ブリティッシュ・テレコミュニケーションズ・パブリック・リミテッド・カンパニー | 音声活性度検出器 |
| US6314396B1 (en) | 1998-11-06 | 2001-11-06 | International Business Machines Corporation | Automatic gain control in a speech recognition system |
| JP3878482B2 (ja) * | 1999-11-24 | 2007-02-07 | 富士通株式会社 | 音声検出装置および音声検出方法 |
| US6876965B2 (en) | 2001-02-28 | 2005-04-05 | Telefonaktiebolaget Lm Ericsson (Publ) | Reduced complexity voice activity detector |
| US7426470B2 (en) * | 2002-10-03 | 2008-09-16 | Ntt Docomo, Inc. | Energy-based nonuniform time-scale modification of audio signals |
| WO2006005337A1 (en) * | 2004-06-11 | 2006-01-19 | Nanonord A/S | A method for analyzing fundamental frequencies and application of the method |
| US8264909B2 (en) * | 2010-02-02 | 2012-09-11 | The United States Of America As Represented By The Secretary Of The Navy | System and method for depth determination of an impulse acoustic source by cepstral analysis |
| WO2014168730A2 (en) * | 2013-03-15 | 2014-10-16 | Apple Inc. | Context-sensitive handling of interruptions |
| CN104967793B (zh) * | 2015-07-28 | 2023-09-19 | 格科微电子（上海）有限公司 | 适用于cmos图像传感器的电源噪声抵消电路 |
| CN111883183B (zh) * | 2020-03-16 | 2023-09-12 | 珠海市杰理科技股份有限公司 | 语音信号筛选方法、装置、音频设备和系统 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1116300A (en) * | 1977-12-28 | 1982-01-12 | Hiroaki Sakoe | Speech recognition system |
| WO1988007739A1 (en) * | 1987-04-03 | 1988-10-06 | American Telephone & Telegraph Company | An adaptive threshold voiced detector |
-
1991
- 1991-01-03 US US07/637,203 patent/US5195138A/en not_active Expired - Lifetime
- 1991-01-07 AU AU68688/91A patent/AU644124B2/en not_active Ceased
- 1991-01-17 CA CA002034333A patent/CA2034333C/en not_active Expired - Fee Related
- 1991-01-18 EP EP94107071A patent/EP0614171B1/en not_active Expired - Lifetime
- 1991-01-18 DE DE69130294T patent/DE69130294T2/de not_active Expired - Fee Related
- 1991-01-18 EP EP91100598A patent/EP0439073B1/en not_active Expired - Lifetime
- 1991-01-18 DE DE69112855T patent/DE69112855T2/de not_active Expired - Fee Related
- 1991-01-18 EP EP94107070A patent/EP0614170B1/en not_active Expired - Lifetime
- 1991-01-18 NO NO910221A patent/NO306489B1/no unknown
- 1991-01-18 FI FI910293A patent/FI115569B/sv active IP Right Grant
- 1991-01-18 EP EP94107069A patent/EP0614169B1/en not_active Expired - Lifetime
- 1991-01-18 DE DE69132148T patent/DE69132148T2/de not_active Expired - Fee Related
- 1991-01-18 KR KR1019910000760A patent/KR960005739B1/ko not_active IP Right Cessation
- 1991-01-18 DE DE69132147T patent/DE69132147T2/de not_active Expired - Fee Related
-
1995
- 1995-12-07 HK HK184795A patent/HK184795A/xx not_active IP Right Cessation
-
1998
- 1998-09-10 HK HK98110577A patent/HK1010008A1/xx not_active IP Right Cessation
- 1998-09-10 HK HK98110575A patent/HK1010006A1/xx not_active IP Right Cessation
- 1998-09-10 HK HK98110576A patent/HK1010007A1/xx not_active IP Right Cessation
-
1999
- 1999-05-10 NO NO992256A patent/NO308335B1/no unknown
- 1999-05-10 NO NO992258A patent/NO308336B1/no unknown
- 1999-05-10 NO NO992257A patent/NO308337B1/no unknown
-
2003
- 2003-01-21 FI FI20030089A patent/FI116595B/sv active IP Right Grant
- 2003-01-21 FI FI20030087A patent/FI117953B/sv active IP Right Grant
- 2003-01-21 FI FI20030088A patent/FI116594B/sv active IP Right Grant
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