Products

Engineering Design offers a range of software products for bioacoustic analysis and experimentation.

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SIGNAL 4.0 provides a powerful graphical environment for viewing, measuring, and manipulating signals, while retaining all the programmability of SIGNAL 3.1. SIGNAL 4.0 is easy to learn and convenient to use. New features include multi-window graph displays with multiple measurement cursors and flexible zooms, drag-and-drop layout for publication graphs, an on-screen spreadsheet for screen measurements, a macro recorder for easy programming, built-in screen capture of all graph images, and export of sound, image, and measurement files, including .wav, AIFF, and .bmp image files. Analog I/O is provided by one of the direct-to-disk analog I/O programs (see below).

SIGNAL 4.0 now runs on Macintosh computers!

Real-Time Spectrogram (RTS) 4.0 provides viewing, measurement, and editing of unlimited-length sound files. RTS 4.0 operates as a module within SIGNAL 4.0, so measurement data can be stored in the SIGNAL logfile and sound segments can be exported directly to SIGNAL buffers (as well as saved to disk). Analog I/O is provided by one of the direct-to-disk analog I/O programs described below.

The Event Detector can automatically extract the sound events from an entire data tape. The user digitizes the tape into a continuous sound file on disk, then the detector can convert this file into individual sound files or measured sound parameters. Detected sound events can be further analyzed in SIGNAL to measure, count, compare, classify, time-stamp, and store sound events and sound parameters.

The Event Analyzer represents a breakthrough in the analysis of repetitive acoustic events as diverse as field recordings of birdsong or laboratory ultrasonic rodent vocalizations. It can go automatically from raw acoustic data to summary behavioral acoustic measurements and statistics, such as call rate, call duration, peak frequency, etc. The Event Analyzer automates and integrates event detection, event measurement, and statistical analysis and display, reducing these processes to a collection of menus, configuration settings, automatic and interactive measurements, diagnostic tools, statistical analyses, and histogram displays, and saving the user potentially months of custom programming.

CBDisk, DartDisk, DTDisk, NIDisk, and WaveDisk provide direct-to-disk data acquisition and playback. These programs turn your computer into an easy-to-use digital recorder or playback instrument. They can be used for recording or playback in the field or lab, and to digitize entire data tapes for automated analysis using the Event Detector. These programs support every I/O card from Computer Boards, Communication Automation (Dart card), Data Translation, National Instruments, and Sound Blaster-compatible manufacturers, respectively. Up to 8 input channels can be recorded at up to 1.25 MHz sample rate and 1 or 2 output channels can be played back at up to 500 kHz sample rate. Limits depend on the I/O card. Sound files can be recorded or played back in either SIGNAL or Wave format, and file duration may be as large as the hard disk.