RESPEED

NAME

respeed - change speaking rate without change in pitch

SYNOPSIS

respeed (-I) (-i item) (-r rate-change|-m MBROLA-control-file) file

DESCRIPTION

respeed is a program to speed-up or slow-down speech signals without changing the pitch. It is based on the SOLA algorithm of Roucos and Wilgur (ICASSP-86). Options control whether the whole signal is changed, or whether different annotated regions are changed by different amounts.

OPTIONS

-I Identify program name and version number.

-i item Select input item number.

-r rate-change Relative speed up factor. 2.0 = twice as fast, 0.5=half as fast. Default 1.

-m MBROLA-control-file Specify a new duration for each annotated region using the format of an MBROLA control file. Respeed only looks at the first two entries on each line; the first should be the name of an annotated region, the second should be the required duration in milliseconds. Use the anmbrola program to build a default control file from a set of annotations.

INPUT ITEMS

SP Speech item

AN Annotation item (control file input).

OUTPUT ITEMS

SP Rate changed speech

HISTORY

rate= proportional rate-change.

control= Control file name

VERSION/AUTHOR

2.0 Mark Huckvale

SEE ALSO

anmbrola, repros, repitch.

BUGS

Fri Jul 09 14:54:36 2004