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Presentation version 0.71

Auditory list members may be interested in the version 0.71 release of Presentation, a Windows program that uses high-precision computer gaming technology for precise stimulus delivery and experiment control. Version 0.71 adds a turbo sound mixer written by NBS specifically to overcome limitations in the Windows OS. Version 0.71 has the following features:

a) Low latency (sub-ms) sound playback on all systems including Windows XP and 2000
b) Extremely high precision (low jigger) for sound events – typically < 0.1ms.
c) 8, 16, and 24 bit audio modes
d) Automatic conversion of sound types (e.g., 16 to 24-bit).
e) Precise control over Windows volume controls that can be preset for any experiment.
f) Individual control of up to 8 speakers (depending on the sound card)
g) The capability of independently mixing more than 50 sound streams
h) Precise control of USB sound cards
i) The capability of generating tones and complex tones at runtime
j) A Matlab interface for more complex runtime stimulus creation
k) Programmable data analysis

NBS has also released an audiometry utility, to help you get thresholds, check headphone balance, quickly verify systems settings, and perform sound calibration, as well as demonstrations of runtime tone synthesis, and multi-speaker control. Once you calibrate your sound system you can specify stimuli in SL, nHL, or SPL intensities from within Presentation.

More than 7,000 scientists have downloaded Presentation more than 21,000 times. 49.7% of Presentation® users rate it “outstanding” or “excellent”; more than 80% would recommend it to colleagues. Try out a free version of Presentation (good until 2004) at <http://www.neurobs.com/>www.neurobs.com..

David L. Woods, Professor of Neurology, Dept. of Neurology,UC Davis,
Chief, Clinical Neurophysiology and Chief, Research fMRI imaging,
Neurology Service (127E), Building R4, VANCHCS, 150 Muir Rd., Martinez, CA 94553
Tel (925) 372-2571, Fax (925) 229-2315 Email:dlwoods@ucdavis.edu
Publications: http://marva4.ebire.org/hcnlab