When examining a recording, you may find features that you wish to document for further study. In addition to its capabilities for interactive annotation editing, WAVE also offers an easy-to-use ``logbook'' for collecting brief notes about segments to which you may wish to return. Each entry in a WAVE log file contains the record name, time, and an optional comment - so it is possible to put together a collection of examples taken from any number of records in a single log. Once the log has been created, the entries in it can be reviewed very easily, or the log can be used as a script for pschart, which will print the signals, annotations, and your comments for each entry, changing records automatically.
Open the Log window (see figure 3.3) by choosing
Log... from WAVE's 
menu.
When you first open the Log window, many of its controls are dimmed until you specify a log file and begin adding entries to it. To create a log file, or to review or add to an existing one, enter its name in the File: field of the Log window.
To add an entry, use WAVE's navigation controls so that the segment
upon which you wish to comment appears in the signal window. Enter
your comments in the Description: field, then click on 
.
The log navigation buttons become visible once there are log entries
recorded. You can use 
and 
to step
through the log one entry at a time, or use 
or
to present a ``slide show'' (control the length of
time each entry appears using the Delay: slider, and use
to interrupt the show). 
and
can be used to jump directly to the beginning or the
end of the log.
To replace a log entry, first use the log navigation buttons to
display that entry. Make any adjustments necessary (use the
navigation buttons in WAVE's main window to reposition the signal
window as needed, and correct the log entry text in the
Description: field), then click on 
.
To delete a log entry, select it first as above, then click on
. For more complex editing (such as rearranging
entries), click on 
to open the log file in a
textedit window (or in the editor of your choice, if you have
set the EDITOR environment variable). After completing your
edits, save them and exit from the editor, then click on 
to reload the edited log into WAVE. (You can also use
if another process, such as one started from the Analyze window,
has modified the log file.)
WAVE's default menu file contains a commented-out entry with the tag
``Print log with charts''. If a button with this text does not appear
in the Analyze window, click on 
, remove the
comment characters from this entry, save the menu and exit the editor,
and click on 
. You can now print the log together
with the signals and annotations by clicking on 
.
