NAME
length -- Print waveform segment lengths
SYNOPSIS
length [-OPTIONS] file[.wav][$segment]
DESCRIPTION
Lengths based on the segment table of waveform file
are displayed on the console. The standard output format
includes column headings and an extended report which lists
the sample counts and times in msec for both the begining and
end of the segment as well as the segment duration in samples
and msec. Command line options provide various alternate output
formats which may be more useful in some applications (like preparing
files as input to statistical analysis routines or to other programs).
OPTIONS
- -BRIEF
- When present, length provides only the start
and duration in msec for each segment. May be abbreviated -BR.
- -NOHEADER
- When present, length
eliminates both the title line and column headers from the
report, however, length then uses an expanded segment name
which includes the file name. May be abbreviated -NOH.
- -EP
- Output will consist of only segment names and endpoints in msec.
- -TLE
- Output suitable for input to TLE program.
- -TLX
- Similar to -TLE except that the last line will always contain the
length of the file whether or not a segment is defined which ends at
the end of the file.
- -DUR
- Prints only segment names and durations in msec.
- -NOS
- Supresses the '******' dummy segment which corresponds to the full
file.
NOTES
Under MSDOS, file may include standard DOS wildcard descriptions
to allow length to run against multiple files with a single
command. Under Unix, only a single input file may be given.
EXAMPLES
C:\WAV>length xbaa
Segment Statistics for file: XBAA
Name ------Begin------ -------End------- Samples msec
CON 1942 194.20 4933 493.40 2992 299.20
SWR 2689 268.90 3571 357.20 883 88.30
SW2 3069 306.90 3569 357.00 501 50.10
****** 0 .00 8022 802.30 8023 802.30
C:\WAV>length -BR xbaa
Segment Statistics for file: XBAA
Name --Begin-- -Duration-
CON 194.20 299.20
SWR 268.90 88.30
SW2 306.90 50.10
****** .00 802.30
C:\wav>length -NOH xbaa
XBAA$CON 1942 194.20 4933 493.40 2992 299.20
XBAA$SWR 2689 268.90 3571 357.20 883 88.00
XBAA$SW2 3069 306.90 3569 357.00 501 50.10
XBAA$****** 0 .00 8022 802.30 8023 802.30
SEE ALSO
getseg (1)
edw (1)
AUTHOR
H.T.Bunnell