,wrel3.1.me

来自「speech signal process tools」· ME 代码 · 共 740 行 · 第 1/3 页

fea_edit $output <<EOF 2>/dev/null 1>&2
1s/0/1/
/Tag LONG/d
w
q

EOF

# Put the "source sample frequency" in the header so the sample numbers
# can (optionally) be used to determine time by programs using the data.

addgen -g src_sf -t DOUBLE -v $freq $output

# clean up

rm -f $output.bak
rm -f $fmtfile
exit 0
-------------------------------------------------------------------------

.fi
.lp
The initial adjustments for the spectrogram threshold level and
displayed dynamic range may now be set on both color and monochrome
systems using the \fIimage_clip\fP and \fIimage_range\fP globals.
These are established in the .wave_pro profile or via an \fIxwaves\fP
\fIset\fP command.  When the color map is adjusted using the middle
mouse button in the spectrogtram display window, the values of
\fIimage_clip\fP and \fIimage_range\fP are updated accordingly.  The
current value of them may be retrieved with the \fIget attributes\fP
command.  \fIImage_range\fP is identical to the \fIrange\fP variable
settable via the \fIcolormap\fP and \fIspectrogram\fP commands.
\fIImage_clip\fP is related to \fIthreshold\fP via the formula:
.ce 1
	threshold = 105 - image_clip - image_range
This somewhat convoluted variable set was devised to maintain backward
compatability while providing a degree of control needed by many users.

.sh 2 "Auxiliary Programs"
.lp
All Entropic D/A conversion (play) programs, when used with \fIxwaves\fP,
support the feature that repositions the signal display centered on
the point at which the playback operation is interrupted by a left
button press in the display window.  A simple modification to
non-Entropic D/A programs, documented in the \fIsplay\fP manual page,
will provide this interrupt-and-reposition function for them as well.
To use this feature on a long file, only a fraction of which is
displayed in a \fIxwaves\fP window: Select a play function, like "play
entire file", from the data window menu.  Allow the playback to
proceed until you hear the point of interest. Immediately press the
left button in the data window.  D/A will stop and the window will
jump to roughly center the point of interest in the display.
.lp
\fISend_xwaves\fP will now wait for a command to complete before
proceeding.  The utility of send_xwaves was previously limited by its
completely asynchronous coupling with \fIxwaves\fP.  Commands via
send_xwaves are now executed and completed in the order in which they
are given.  This feature extends to commands that involve other
processes external to \fIxwaves\fP and to the attachments.  If the old
asynchronous send_xwaves behavior is desired, the interlock may be
disabled with the -B send-xwaves command-line option.  See the new
send_xwaves manual page.
.lp
All Entropic A/D (record) programs optionally can send a display message
to \fIxwaves\fP to display the signal just recorded.  This simplifies
recording followed immediately by analysis or editing.  To use this
feature: Have \fIxwaves\fP running in the server mode (e.g. start it with
the -s option).  Issue a record command, like "srecord -S output.sd".
If the record operation is then interrupted or allowed to run to
completion, the data just collected will be displayed immediately in
an \fIxwaves\fP window.  See the \fIsrecord\fP manual for more details.

.sh 2 Attachments
.lp
There is a new attachment called \fIxchart\fP.  This has all of the
features present in the \fIxlabel\fP program, plus the ability to
handle segment lattice displays.  These displays consist of multiple,
possibly overlapping, segment labels, such as might be generated by an
automatic time-series labeling system, or a speech recognizer "front
end".  See the new \fIxchart\fP manual page.
.lp
\fIXspectrum\fP now controls the highest visible harmonic cursor
when harmonic cursors are on.  The mouse cursor keeps jumping to
higher and higher harmonics as the frequency of the fundamental is
lowered, and to lower harmonics as the fundamental is raised.  The
maximum number of harmonic cursors has been increased to 20.
Thus, it is now possible to make extremely accurate fundamental
frequency determinations using \fIxspectrum\fP.
.lp
\fIXspectrum\fP now provides on/off control of the horizontal (magnitude)
cursors.  It is often desirable to disable these when hard copies are
being prepared.

.sh 1 "ANNOYANCES REMOVED"
.sh 2 \fIxwaves\fP
.lp
\fIXwaves\fP now has only one name: \fIxwaves\fP.  We no longer put the names
waves, xvwaves, xwaves+, waves+, ... in the $ESPS_BASE/bin directory.
We also no longer supply a covering script that attempts to determine
the window system in use.  When you run \fIxwaves\fP, you will be running
the target binary file designed for the window system named X.  Some
installations may wish to continue to link the multiple names to
\fIxwaves\fP, but Entropic has decided to cut the cord!  We are sorry if
this causes temporary inconvenience, but it will simplify all our
lives in the long run.  We were continally finding that, through our
fault or theirs, customers were actually running the wrong version of
our software because links had turned into copies, etc.  We suggest
uniformly changing all references in scripts, etc to \fIxwaves\fP.  (Note,
however, that command files interpreted by \fIxwaves\fP should continue to
send messages to "waves" as before.)
.lp
\fIXwaves\fP now recognizes any homogeneous ESPS FEA file with a field
called "F0" as a file containing fundamental-frequency (pitch)
information.  These are now displayed using the F0-specific method,
appropriate for such signals.  If the file also has a field called
"P(voice)" or "prob_voice", this signal element will be used to enable
the the waveform display of the F0 data.  Data records in which
prob_voice is > .5, will have F0 displayed.  This behavior was
formerly only available when the pitch information was stored in the
AT&T SIGnal format.  The \fIformant\fP program now only optionally
emits the extra SIGnal version of the pitch data (i.e. the .f0.sig
file).
.lp
The use of the UNIX environment variable \fIDEF_HEADER\fP and the
internal \fIxwaves\fP variable \fIdef_header\fP has been made more
consistent and more clearly defined: If \fIDEF_HEADER\fP is defined
before \fIxwaves\fP is run, its value will be adopted by \fIxwaves\fP
(\fIdef_header\fP will be set to its value).  If \fIdef_header\fP is set
in \fIxwaves\fP AFTER \fIxwaves\fP is started, all programs run BY
\fIxwaves\fP (i.e. as child processes) will inherit the new
definition.  Thus, it is possible to change \fIdef_header\fP between
calls to external programs (e.g. calls via D/A play commands or
\fIadd_espsf\fP) and have the external ESPS programs use the new definition.
.lp
The limit on the number of files that may be specified on the command
line as signals for \fIxwaves\fP to display has been raised from seven to
50.
.lp
The data-display cursor now returns to its pre-menu-display position
after a window menu selection is performed.
.lp
\fIXwaves\fP now scales signals for D/A playback based on the generic
header item \fImax_val\fP, if it is present, rather than based on only
the maximum found in the display buffer.  If \fImax_val\fP is not
present, \fIxwaves\fP assumes the maximum value is 32767 and does not scale
at all.
.lp
It is no longer necessary to have \fIfea_sd_special\fP set to get
reasonable behavior on non-short-integer data with the built-in boards
(or external program calls, for that matter).  Thus, one can display a
floating-point file as floating point and still play it from within
\fIxwaves\fP.  (It is still necessary to set fea_sd_special to get
spectrograms of non-short-integer data with the built-in boards).

.sh 2 "Auxiliary Programs"
.lp
All Entropic play programs now read the input and send output to the D/A
simultaneously.  Previously, \fIsplay\fP and some of the others, read the
entire file before beginning, a particularly annoying trait when the
file was an hour long!
.lp
Similarly, all Entropic record programs send the data directly to disk as
the data comes in from the A/D.  All record programs can write to stdout.
.lp
The play programs (\fIsplay\fP, \fIsgplay\fP, \fIs32cplay\fP, \fIc30play\fP, ...) now read ESPS
files or headerless files correctly from standard input.  Thus,
command sequences like
.ce 1
	testsd -C 1000 -s4 - | splay -
will work as expected.
.lp
\fIFormant\fP now permits specification of an output directory, rather than
requiring that the output files it creates be placed in the same
directory as the input file.  This was implemented as an optional
command-line argument "-O" where the directory path may be specified.
\fIFormant\fP still generates several files with names ending in .hp, .sd,
\.f0, etc, but they will be in the specified directory, rather in the
same directory with the input file.  if "-O" is not specified, the old
behavior obtains.
.lp
\fIFormant\fP now supports the standard ESPS range [-r] option making
it easier to integrate with \fIxwaves\fP \fIadd_espsf\fP functions.
It still requires a covering script for \fIadd_espsf\fP
implementation, but the operation is more efficient, since less
copying will be required and the use of \fIcopysd\fP is no longer
necessary to obtain the range limits.  See the \fIformant\fP manual
page for examples.  The algorithms embodied in the formant program
will be reimplemented for greater speed and to provide a more regular
I/O syntax in the Spring 1993 release.
.lp
\fIFormant\fP no longer forces the creation of a SIGnal file containing the
F0 information, since \fIxwaves\fP now reads the ESPS version of this data
correctly.  Thus only the ".f0" files are created by default. These
are now read and displayed by \fIxwaves\fP exactly as the ".f0.sig" files
were.  Users requiring the SIGnal files for other reasons can use the
[-S] command-line option to enable the old behavior.
.lp
\fIFormant\fP now uses the standard UNIX \fIgetopt()\fP function to
process the command line, making it insensitive to spaces between
option switches and their arguments, etc.
.lp
Processing of commands sent to \fIxwaves\fP via \fIsend_xwaves\fP was
overly restrictive about the format of the command string.  Its
unnecessary sensitivity to the presence or absence of whitespace and
newlines has now been eliminated.
.lp
All \fIxwaves\fP file name specifications are now processed for possible
UNIX environment symbols of the form $NAME.  All such symbols are now
expanded correctly.
.lp
\fIWcheckout\fP has been eliminated.  If the user has a valid \fBwaves+\fP
license, all of the auxiliary programs will run, whether \fIxwaves\fP is
running or not.  All references to \fIwcheckout\fP in scripts, etc. may
be eliminated.
.lp
The program \fIwplay\fP has been replaced by a new program
\fIv32play\fP. This new program provides D/A conversion via either the
AT&T FAB2 dsp32 board or the AT&T or Heurikon SURF dsp32c board.
Unlike \fIwplay\fP, \fIv32play\fP reads its data directly from disk
files (or stdin) during conversion, and is thus much faster in
response.  It may also be used on files of unlimited length.
\fIV32play\fP behaves like all of the other Entropic D/A programs,
with respect to command-line arguments and UNIX signals (see eman
\fIv32play\fP).  With the SURF board, \fIv32play\fP provides both
single- and dual-channel output.
.lp
The AT&T/Heurikon SURF record program, \fIwrecord\fP, has been
replaced by the program \fIv32record\fP which performs A/D directly to
disk (unlike \fIwrecord\fP which buffered everything to memory first).
\fIV32record\fP also records either single- or dual-channel signals.

.sh 2 "Attachments"
.lp
As with \fIxwaves\fP, we have uniformly singled out names for all of
the attachments.  Thus, we retain the names \fIxlabel\fP,
\fIxspectrum\fP and \fIxmarks\fP.  All references to these attachments
must use those names.  Optionally, your site may choose to
symbolically link the old names (like xvlabel) to the now-standard
names.  However, we encourage you to make the change now.  We promise
never to change the names again!
.lp
Attachment of an \fIxlabel\fP window to a particular \fIxwaves\fP signal view has
now been correctly implemented.  When the \fIxlabel\fP display is created by
a command like
.nf
	send make  name foo   file foo.lab   signal foo.sd
.fi