DE502005001838D1 - DEVICE AND METHOD FOR ANALYZING AN INFORMATION SIGNAL - Google Patents
DEVICE AND METHOD FOR ANALYZING AN INFORMATION SIGNALInfo
- Publication number
- DE502005001838D1 DE502005001838D1 DE502005001838T DE502005001838T DE502005001838D1 DE 502005001838 D1 DE502005001838 D1 DE 502005001838D1 DE 502005001838 T DE502005001838 T DE 502005001838T DE 502005001838 T DE502005001838 T DE 502005001838T DE 502005001838 D1 DE502005001838 D1 DE 502005001838D1
- Authority
- DE
- Germany
- Prior art keywords
- information signal
- spectra
- short
- spectrum
- profile
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
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
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 (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004022660A DE102004022660B4 (en) | 2004-05-07 | 2004-05-07 | Apparatus and method for analyzing an information signal |
| PCT/EP2005/004685 WO2005114651A1 (en) | 2004-05-07 | 2005-04-29 | Device and method for analysing an information signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE502005001838D1 true DE502005001838D1 (en) | 2007-12-13 |
Family
ID=34968451
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE102004022660A Expired - Fee Related DE102004022660B4 (en) | 2004-05-07 | 2004-05-07 | Apparatus and method for analyzing an information signal |
| DE502005001838T Active DE502005001838D1 (en) | 2004-05-07 | 2005-04-29 | DEVICE AND METHOD FOR ANALYZING AN INFORMATION SIGNAL |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE102004022660A Expired - Fee Related DE102004022660B4 (en) | 2004-05-07 | 2004-05-07 | 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 |
|---|---|
| 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 |
| ATE377240T1 (en) | 2007-11-15 |
| JP2007536587A (en) | 2007-12-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8364 | No opposition during term of opposition | ||
| 8327 | Change in the person/name/address of the patent owner |
Owner name: GRACENOTE, INC., (N. D .GES. D. STAATES DELAWA, US |
|
| 8328 | Change in the person/name/address of the agent |
Representative=s name: SCHOPPE, ZIMMERMANN, STOECKELER & ZINKLER, 82049 P |