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GB8715363D0 - Determining variation of spectral lines of signal patterns - Google Patents

Determining variation of spectral lines of signal patterns

Info

Publication number
GB8715363D0
GB8715363D0 GB8715363A GB8715363A GB8715363D0 GB 8715363 D0 GB8715363 D0 GB 8715363D0 GB 8715363 A GB8715363 A GB 8715363A GB 8715363 A GB8715363 A GB 8715363A GB 8715363 D0 GB8715363 D0 GB 8715363D0
Authority
GB
United Kingdom
Prior art keywords
fourier transform
fast fourier
signal
analysed
subjected
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.)
Granted
Application number
GB8715363A
Other versions
GB2192519A (en
GB2192519B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Berlin Brandenburg Academy of Sciences and Humanities
Original Assignee
Berlin Brandenburg Academy of Sciences and Humanities
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DD29215486A external-priority patent/DD250780A1/en
Priority claimed from DD29215586A external-priority patent/DD250781A1/en
Application filed by Berlin Brandenburg Academy of Sciences and Humanities filed Critical Berlin Brandenburg Academy of Sciences and Humanities
Publication of GB8715363D0 publication Critical patent/GB8715363D0/en
Publication of GB2192519A publication Critical patent/GB2192519A/en
Application granted granted Critical
Publication of GB2192519B publication Critical patent/GB2192519B/en
Expired legal-status Critical Current

Links

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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Image Analysis (AREA)
  • Medical Treatment And Welfare Office Work (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

Consecutive signal components are digitally captured and the signals are subjected to a fast Fourier transform in which the numbers of measurement values of each signal component capturing the fundamental period are arranged in a repetitive sequence until a number suitable for the fast Fourier transform is reached or even exceeded. The signal series thus composed is subjected to the fast Fourier transform. The analog-digital conversion of the signal which is to be analysed is carried out with a sampling frequency which is higher than would be necessary according to the requirement of the sampling theorem for the highest frequency to be analysed. The invention can be used in technical diagnosis, in speech analysis and in certain medical applications. <IMAGE>
GB8715363A 1986-07-04 1987-06-30 Method for determining the variation with time of a plurality of spectral lines of signal patterns Expired GB2192519B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DD29215486A DD250780A1 (en) 1986-07-04 1986-07-04 METHOD FOR DETERMINING THE TIME CHANGING OF SEVERAL SPECTRALLINES OF SIGNALING
DD29215586A DD250781A1 (en) 1986-07-04 1986-07-04 METHOD FOR DETERMINING THE TIME CHANGING OF SEVERAL SPECTRALLINES OF SIGNALING

Publications (3)

Publication Number Publication Date
GB8715363D0 true GB8715363D0 (en) 1987-08-05
GB2192519A GB2192519A (en) 1988-01-13
GB2192519B GB2192519B (en) 1990-07-11

Family

ID=25748062

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8715363A Expired GB2192519B (en) 1986-07-04 1987-06-30 Method for determining the variation with time of a plurality of spectral lines of signal patterns

Country Status (5)

Country Link
JP (1) JPS63259473A (en)
DE (1) DE3719954A1 (en)
DK (1) DK338987A (en)
FR (1) FR2601164B3 (en)
GB (1) GB2192519B (en)

Also Published As

Publication number Publication date
DK338987A (en) 1988-01-05
DE3719954A1 (en) 1988-01-28
DK338987D0 (en) 1987-07-02
FR2601164A1 (en) 1988-01-08
GB2192519A (en) 1988-01-13
GB2192519B (en) 1990-07-11
FR2601164B3 (en) 1989-06-30
JPS63259473A (en) 1988-10-26

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee