shore@epiwrl.EPI.COM (John Shore) (03/28/89)
Waves+ -- Interactive Graphics for Signal Processing Waves+ supports viewing and manipulating waveforms, spectrograms, and related signal-processing data. It is available as a standalone program and as an integrated front-end for the Entropic Signal Processing System (ESPS), a more general UNIX-based signal processing software package. Waves+ exploits windows, pop-up menus, and mouse interaction to facilitate the time-synchronous viewing, panning, zooming, editing, annotation, spectrum analysis, and playback of multiple signal representations. Time-coordinated windows with synchronous cursors can display sampled-data, spectrograms, and analysis-parameter tracks. Arbitrary vector time-series data can be displayed in spectrogram format. If a special AT&T signal processing board is installed, it is used for analog I/O and near-real-time spectrogram computation. Otherwise, spectrograms are computed by standard ESPS programs. For speech sampled data, formant tracks can be computed, overlaid on spectrogram displays, and edited by hand. On color monitors, the mouse is used dynamically to change spectrogram contour thresholds and intensity mappings. On single-plane monitors, digital halftone images are displayed. Waves+\fR may be customized to perform a variety of specialized tasks through the use of command files and shell scripts. Waves+ supports "attachments", separately-running programs that communicate with waves+ via unix pipes and allow extended operations to be performed on waves+ signals. Waves+ includes standard attachments for spectrum analysis and for the interactive annotation of sampled data. Waves+ runs on Sun 3, Sun 4, and Sun 386i systems. An X-Windows version will be available later this year. Entropic's waves+ products are derived from software developed at AT&T Bell Laboratories, Murray Hill, that has been licensed and extended by Entropic. List prices are $1500-$3750. Academic discount is 50%. Contact: Entropic Processing, Inc. Washington Research Laboratory 600 Pennsylvania Ave., S.E., Suite 202 Washington, D.C. 20003 (800-446-0028) (202-547-1420) (202-546-6648) (FAX) esps@wrl.epi.com ...uunet!epiwrl!esps