Subject: Data acquisition system for PCs From: Bob Masta <masta(at)daqarta.com> Date: Tue, 18 Aug 1998 10:38:06 +0000DAQARTA (Data AcQuisition And Real-Time Analysis) is shareware for DOS PC systems. You can download it from: http://www.daqarta.com Daqarta does real-time waveform, spectrum, and color spectrogram analysis. It provides stimulus signal generation including pure tones, multi-tone bursts, synchronous intermodulation test tones (for DPOAEs), and digital pulse trains and test patterns. Waveform or spectral averaging is available with artifact rejection, exponential weighting, and remote start/stop. Triggering controls include conventional internal slope / level and auto modes, plus external TTL or internal stimulus sync, with deep pre- and post- trigger data display. You can use pre-trigger waveform averaging to perform "reverse correlation" analyses by feeding a spike discriminator to the external trigger input, for example. A keystroke macro facility allows automation of repeated tasks, such as rapid ABRs for threshold assessment. Data can be saved or read in standard or enhanced .WAV file format, raw or averaged, waveform or spectrum, single or multiple trace, using optional auto-increment file names. Extensive pop-up context-sensitive hypertext help is provided, with plenty of hands-on tutorials and solid low-math theory on subjects like dither, Fourier analysis, and window functions. Engineering expertise is not assumed. Daqarta supports a wide variety of laboratory-type data acquisition boards as well as sound cards, using custom Daqarta drivers. There is even a driver for user-built boards (as simple as a handful of resistors) that plug into a printer port, intended for student experiments but useful in the lab. New board drivers are being added continually. Daqarta is written in 100% assembly code, and it self-optimizes to run at high speeds even on the old "clunker" systems that get relegated to many labs. It's a mature system, with over 10000 hours of development to date. Registration has been set at only $99 per lab to insure that cost will not be a barrier to anyone. There is also a $29 registration available for personal or hobby users. Best of all, it's shareware... anyone can download it for unlimited free evaluation. Your comments and questions are welcome. Bob Masta tech(at)daqarta.com D A Q A R T A Data AcQuisition And Real-Time Analysis Shareware from Interstellar Research http://www.daqarta.com McGill is running a new version of LISTSERV (1.8c on Windows NT). Information is available on the WEB at http://www.mcgill.ca/cc/listserv