ATE377240T1 - APPARATUS AND METHOD FOR ANALYZING AN INFORMATION SIGNAL - Google Patents
APPARATUS AND METHOD FOR ANALYZING AN INFORMATION SIGNALInfo
- Publication number
- ATE377240T1 ATE377240T1 AT05744658T AT05744658T ATE377240T1 AT E377240 T1 ATE377240 T1 AT E377240T1 AT 05744658 T AT05744658 T AT 05744658T AT 05744658 T AT05744658 T AT 05744658T AT E377240 T1 ATE377240 T1 AT E377240T1
- Authority
- AT
- Austria
- Prior art keywords
- information signal
- spectra
- short
- spectrum
- profile
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
- G10L25/48—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use
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)
- Auxiliary Devices For Music (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Debugging And Monitoring (AREA)
Abstract
In order to analyse an information signal, a significant short-time spectrum is extracted from the information signal. The extraction device (16) is embodied in such a way as to extract the short-time spectra which come closer to a specific characteristic than other short-time spectra of the information signal. The extracted short-time spectra are then decomposed (18) into component signals, by ICA analysis, a component signal spectrum representing a profile spectrum of a sound source which generates a sound corresponding to the required characteristic. An amplitude envelope is calculated (20) for each profile spectrum from a series of short-time spectra of the information signal and from the determined profile spectra, said envelope indicating how the profile spectrum of a sound source generally varies over time. The profile spectra and associated amplitude envelopes describe the information signal that can be further evaluated, e.g. for the purposes of a transcription in the case of a music signal.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004022660A DE102004022660B4 (en) | 2004-05-07 | 2004-05-07 | Apparatus and method for analyzing an information signal |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE377240T1 true ATE377240T1 (en) | 2007-11-15 |
Family
ID=34968451
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT05744658T ATE377240T1 (en) | 2004-05-07 | 2005-04-29 | APPARATUS AND METHOD FOR ANALYZING AN INFORMATION SIGNAL |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1743324B1 (en) |
JP (1) | JP2007536587A (en) |
AT (1) | ATE377240T1 (en) |
DE (2) | DE102004022660B4 (en) |
WO (1) | WO2005114651A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113723200B (en) * | 2021-08-03 | 2024-01-12 | 同济大学 | Method for extracting time spectrum structural features of non-stationary signals |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0675562A (en) * | 1992-08-28 | 1994-03-18 | Brother Ind Ltd | Automatic musical note picking-up device |
US6140568A (en) * | 1997-11-06 | 2000-10-31 | Innovative Music Systems, Inc. | System and method for automatically detecting a set of fundamental frequencies simultaneously present in an audio signal |
US6201176B1 (en) * | 1998-05-07 | 2001-03-13 | Canon Kabushiki Kaisha | System and method for querying a music database |
GB2363227B (en) * | 1999-05-21 | 2002-02-20 | Yamaha Corp | Method and system for supplying contents via communication network |
US7117149B1 (en) * | 1999-08-30 | 2006-10-03 | Harman Becker Automotive Systems-Wavemakers, Inc. | Sound source classification |
US6453252B1 (en) * | 2000-05-15 | 2002-09-17 | Creative Technology Ltd. | Process for identifying audio content |
JP2002207482A (en) * | 2000-11-07 | 2002-07-26 | Matsushita Electric Ind Co Ltd | Device and method for automatic performance |
JP2004029274A (en) * | 2002-06-25 | 2004-01-29 | Fuji Xerox Co Ltd | Device and method for evaluating signal pattern, and signal pattern evaluation program |
-
2004
- 2004-05-07 DE DE102004022660A patent/DE102004022660B4/en not_active Expired - Fee Related
-
2005
- 2005-04-29 JP JP2007511985A patent/JP2007536587A/en not_active Ceased
- 2005-04-29 AT AT05744658T patent/ATE377240T1/en not_active IP Right Cessation
- 2005-04-29 DE DE502005001838T patent/DE502005001838D1/en active Active
- 2005-04-29 WO PCT/EP2005/004685 patent/WO2005114651A1/en active IP Right Grant
- 2005-04-29 EP EP05744658A patent/EP1743324B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
DE502005001838D1 (en) | 2007-12-13 |
WO2005114651A1 (en) | 2005-12-01 |
DE102004022660A1 (en) | 2005-12-15 |
EP1743324B1 (en) | 2007-10-31 |
DE102004022660B4 (en) | 2006-03-23 |
EP1743324A1 (en) | 2007-01-17 |
JP2007536587A (en) | 2007-12-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
REN | Ceased due to non-payment of the annual fee |