DE69524019D1 - Digitales Signalverarbeitungssystem - Google Patents
Digitales SignalverarbeitungssystemInfo
- Publication number
- DE69524019D1 DE69524019D1 DE69524019T DE69524019T DE69524019D1 DE 69524019 D1 DE69524019 D1 DE 69524019D1 DE 69524019 T DE69524019 T DE 69524019T DE 69524019 T DE69524019 T DE 69524019T DE 69524019 D1 DE69524019 D1 DE 69524019D1
- Authority
- DE
- Germany
- Prior art keywords
- signal processing
- processing system
- digital signal
- digital
- signal
- 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.)
- Expired - Lifetime
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/02—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos
- G10H1/06—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour
- G10H1/12—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour by filtering complex waveforms
- G10H1/125—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour by filtering complex waveforms using a digital filter
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
- H03H17/0294—Variable filters; Programmable filters
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
- H03H17/04—Recursive filters
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2250/00—Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing
- G10H2250/055—Filters for musical processing or musical effects; Filter responses, filter architecture, filter coefficients or control parameters therefor
- G10H2250/101—Filter coefficient update; Adaptive filters, i.e. with filter coefficient calculation in real time
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2250/00—Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing
- G10H2250/055—Filters for musical processing or musical effects; Filter responses, filter architecture, filter coefficients or control parameters therefor
- G10H2250/111—Impulse response, i.e. filters defined or specifed by their temporal impulse response features, e.g. for echo or reverberation applications
- G10H2250/121—IIR impulse
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2250/00—Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing
- G10H2250/541—Details of musical waveform synthesis, i.e. audio waveshape processing from individual wavetable samples, independently of their origin or of the sound they represent
- G10H2250/545—Aliasing, i.e. preventing, eliminating or deliberately using aliasing noise, distortions or artifacts in sampled or synthesised waveforms, e.g. by band limiting, oversampling or undersampling, respectively
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9418901A GB2293507B (en) | 1994-09-20 | 1994-09-20 | Digital signal processing |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69524019D1 true DE69524019D1 (de) | 2002-01-03 |
DE69524019T2 DE69524019T2 (de) | 2002-07-18 |
Family
ID=10761600
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69524019T Expired - Lifetime DE69524019T2 (de) | 1994-09-20 | 1995-07-17 | Digitales Signalverarbeitungssystem |
Country Status (6)
Country | Link |
---|---|
US (2) | US5712808A (de) |
EP (1) | EP0703564B1 (de) |
JP (1) | JPH08152883A (de) |
KR (1) | KR960012701A (de) |
DE (1) | DE69524019T2 (de) |
GB (2) | GB2325364B (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2325364B (en) * | 1994-09-20 | 1999-01-13 | Sony Uk Ltd | Digital signal processing |
DE50001985D1 (de) * | 1999-06-25 | 2003-06-05 | Infineon Technologies Ag | Programmierbares digitales bandpass-filter für eine kodec-schaltung |
JP4135624B2 (ja) * | 2003-11-19 | 2008-08-20 | ヤマハ株式会社 | 構成要素データの管理方法 |
US8111791B2 (en) * | 2005-12-20 | 2012-02-07 | Sirf Technology, Inc. | Differential evolution design of polyphase IIR decimation filters |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8201344A (nl) * | 1982-03-31 | 1983-10-17 | Philips Nv | Digitale toonregelinrichting. |
NL8203520A (nl) * | 1982-09-10 | 1984-04-02 | Philips Nv | Digitale filterinrichting. |
US4494214A (en) * | 1983-02-03 | 1985-01-15 | Rca Corporation | Apparatus for generating scaled weighting coefficients for sampled data filters |
DE3621632A1 (de) * | 1986-06-27 | 1988-01-14 | Matthias Bogner | Digitale signaluebertragungsanordnung mit veraenderbarer uebertragungsfunktion |
US4783756A (en) * | 1986-09-24 | 1988-11-08 | Rca Licensing Corporation | Sampled data tone control system |
US4907484A (en) * | 1986-11-02 | 1990-03-13 | Yamaha Corporation | Tone signal processing device using a digital filter |
DE3702215A1 (de) * | 1987-01-26 | 1988-08-04 | Ant Nachrichtentech | Uebertragungsanordnung fuer digitale signale |
JP2639543B2 (ja) * | 1987-12-02 | 1997-08-13 | 日本ビクター株式会社 | デジタル・フィルタ装置 |
EP0420269A3 (en) * | 1989-09-28 | 1992-12-30 | Fujitsu Limited | Adaptive digital filter including low-pass filter |
US5210705A (en) * | 1990-02-28 | 1993-05-11 | Texas Instruments Incorporated | Digital filtering with single-instruction, multiple-data processor |
US5121065A (en) * | 1990-07-13 | 1992-06-09 | Hewlett-Packard Company | Mixed domain mixed ratio frequency response sampling |
JP2779983B2 (ja) * | 1991-07-29 | 1998-07-23 | 株式会社河合楽器製作所 | 電子楽器 |
GB2325364B (en) * | 1994-09-20 | 1999-01-13 | Sony Uk Ltd | Digital signal processing |
-
1994
- 1994-09-20 GB GB9817463A patent/GB2325364B/en not_active Expired - Fee Related
- 1994-09-20 GB GB9418901A patent/GB2293507B/en not_active Expired - Fee Related
-
1995
- 1995-07-17 DE DE69524019T patent/DE69524019T2/de not_active Expired - Lifetime
- 1995-07-17 EP EP95304967A patent/EP0703564B1/de not_active Expired - Lifetime
- 1995-08-02 US US08/510,167 patent/US5712808A/en not_active Expired - Lifetime
- 1995-09-19 JP JP7240146A patent/JPH08152883A/ja active Pending
- 1995-09-20 KR KR1019950030848A patent/KR960012701A/ko not_active Application Discontinuation
-
1997
- 1997-10-07 US US08/947,289 patent/US5877971A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69524019T2 (de) | 2002-07-18 |
US5877971A (en) | 1999-03-02 |
GB2325364A (en) | 1998-11-18 |
GB9817463D0 (en) | 1998-10-07 |
JPH08152883A (ja) | 1996-06-11 |
KR960012701A (ko) | 1996-04-20 |
GB2325364B (en) | 1999-01-13 |
EP0703564B1 (de) | 2001-11-21 |
US5712808A (en) | 1998-01-27 |
GB2293507B (en) | 1999-01-13 |
EP0703564A1 (de) | 1996-03-27 |
GB9418901D0 (en) | 1994-11-09 |
GB2293507A (en) | 1996-03-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |