Title:
SIGNAL ANALYZING METHOD AND SIGNAL ANALYZING DEVICE
Document Type and Number:
Japanese Patent JPH1124696
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a signal analyzing device capable of processing close to actual time processing with a time-deforming acoustic filter group. SOLUTION: A voice signal is imparted to a time non-transformation linear frequency analyzing filter group 2 through an input 1 to analyze each frequency band component, and its output signal is imparted to a time transformation compensating filter group 4 and a coefficient determining circuit 7. The coefficient determining circuit group 7 determines the asymmetric parameter (c) or amplitude parameter (a) every channel of the time transformation compensating filter group 4 in accordance with the magnitude of the output of the time non-transformation linear frequency analyzing filter group 2, and an output equivalent to that applied with a gamma chirp filter group transforming in input is obtained as the output 5 of the time transformation compensating filter group 4.
Inventors:
IRINO TOSHIO
Application Number:
JP17540597A
Publication Date:
January 29, 1999
Filing Date:
July 01, 1997
Export Citation:
Assignee:
ATR NINGEN JOHO TSUSHIN KENKYU
International Classes:
G01H3/08; G10L19/26; G10L25/00; G10L25/27; G10L25/75; H03H17/02; H03H17/04; H03M7/30; (IPC1-7): G10L7/04; G01H3/08; H03H17/02
Attorney, Agent or Firm:
Fukami Hisaro (2 outside)