Method and system for time scale modification utilizing feature

Details Method and system for time scale modification utilizing feature Method and system for time scale modification utilizing feature

1996-03-01

1998-05-05

MacDonald, Allen R.

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

704211, G10L 302, G10L 912

Patent

active

057490643

ABSTRACT:
A method and system for implementing time scale modification wherein the method includes a Zero Crossing Module (22) for determining zero crossing points in the signal, a Feature Vector Module (24) for generating feature vectors describing the zero crossing points, a Distance Metric Module (26) for generating distance metrics describing local characteristics at the zero crossing points, an Alignment Module (28) for using the feature vectors and distance metrics for aligning and synchronizing the signal in accordance with local similarities and similarity over a selected time interval to generate a time scale modified signal. The present invention also includes a Cross Fade Module (20) for smoothing transitions between successive frames of the resulting time scale modified signal.

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patent: 5473759 (1995-12-01), Slaney et al.
patent: 5504833 (1996-04-01), George et al.

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