WFDB Software Package 10.7.0

File: <base>/wave/intro.hlp (2,800 bytes)
WAVE: Waveform Analyzer, Viewer, and Editor

Copyright (C) 1990-2010 George B. Moody

WAVE is an extensible interactive graphical environment for manipulating sets
of digitized signals with optional annotations.  WAVE is built using the WFDB
library developed for physiologic signal processing, so it can be applied to
any of a wide variety of data formats supported by the WFDB library.  WAVE can
run on FreeBSD, GNU/Linux, Mac OS X, MS-Windows with Cygwin, Solaris, and
other platforms that support the X Window System and the free XView toolkit.

Among WAVE's capabilities are:
 - fast display of waveforms and annotations at various calibrated scales
 - fast access to any portion of a recording, with caching and `read-ahead'
   heuristics to improve efficiency and reduce network traffic
 - forward and backward searches for annotation patterns
 - graphical annotation editing using standard or user-defined annotations
 - variable-speed superimposition display (simulation of triggered oscilloscope
   display with persistence;  can be run forward or backward)
 - high-resolution printing of user-selected signal segments
 - extremely flexible control of external signal-processing and analysis
   programs (menus may be reconfigured by the user while WAVE is running)
 - on-line `spot' help for all controls, with additional topic-oriented on-line

Move the mouse pointer over any control and press the HELP key (or F1 if there
is no HELP key) for information about that control.  (If your window manager
does not cooperate, this may not work;  in that case, select `Buttons' from the
`Help Topics' panel for information about controls.)

The answers to many frequently asked questions about WAVE can be found in
the WAVE FAQ (, which
is part of the WAVE User's Guide (,
a book-length tutorial and reference manual for WAVE.

This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later

This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.  See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with
this program; if not, see <>.

Your comments and suggestions are welcome!  Please send them by e-mail to, or by postal mail to:
    MIT Room E25-505A
    Cambridge, MA 02139 USA
For updates to this software, please visit