Subject: Re: question about localization rig From: Daniel Oberfeld <oberfeld@xxxxxxxx> Date: Tue, 3 Jul 2012 10:58:40 +0200 List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>Hi Stefan, you could also think about using a DA converter without built-in signal processing, like for example http://www.rme-audio.de/products_m32da.php. Any up-to-date desktop PC should have enough processing power for creating 32 channels from within Matlab and playing them via ASIO. Plus, the audio specs are way better than for the TDT processor... Best Daniel > ---------------------------------------------------------------------- > > Date: Mon, 2 Jul 2012 14:18:26 +0100 > From: Stefan Bleeck <bleeck@xxxxxxxx> > Subject: question about localization rig > > Dear learned colleagues > We are replacing our old psychophysics sound localization rig that is > regularly used in research and education (typical example: MSc project > on sound localization ability when wearing hearing aids). We would > like to have a good resolution and the ability to play sounds via any > number of channels simultaneously. > I am asking for your opinion about the following two options (Both are > about the same price and have 24 channels (up to 16 bit and 100 kHz). > > A) > National Instruments > http://ohm.ni.com/advisors/retrieve?id=3DPX2936227&emailqte=3D1450855 > is controlled via data acquisition toolbox and connected to PC via > express card (for flexibility, though can use PCI card as well as or > instead of). > > B) > Tucker Davies: > www.tdt.com/products/RX8.htm > TD is controlled using MATLAB via ActiveX and connected to PC via PCI > card. Both options require us to sort out amplification, though TD > would be delighted to sell us three 8-channel amps totalling =A31.5k. > > > Can you recommend one on the basis of your experience? > > > > cheers, > Stefan > > > --=20 > Dr. Stefan Bleeck > Hearing and Balance Centre > Institute of Sound and Vibration Research > Faculty of Engineering and the Environment > University of Southampton, SO17 1BJ, UK > Room 4093, Tizard building (13) > bleeck@xxxxxxxx Tel.: 02380 596682 -- PD Dr. Daniel Oberfeld-Twistel Johannes Gutenberg - Universitaet Mainz Department of Psychology Experimental Psychology Wallstrasse 3 55122 Mainz Germany Phone ++49 (0) 6131 39 39274 Fax ++49 (0) 6131 39 39268 http://www.staff.uni-mainz.de/oberfeld/