Subject: Re: [AUDITORY] MIDI Drum Pads: Delay and temporal resolution From: =?ISO-8859-2?Q?Pawe=B3_Ku=B6mierek?= <pawel.kusmierek@xxxxxxxx> Date: Tue, 18 Jun 2013 10:55:23 -0400 List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>--089e013a0772e29e8e04df6ee837 Content-Type: text/plain; charset=ISO-8859-1 Here is an alternative. There is a British company http://www.ced.co.ukwhich makes data acquisition interfaces for electrophysiology. The interfaces have TTL I/O, ADCs (of course) and DACs, and they are programmable, i.e. they have own processors that can run simple programs with timing closely coupled with data acquisition. You can program them to respond with DAC output (e.g., audio) to a TTL pulse from a pressure sensor (or ADC input crossing a level) within tens of microseconds. However, you would have to spend about $5,900 for the cheapest interface and probably $2,800 for software (the latter unless you want to go into low-level programming of the interface), and many of the features could be of little use for you, e.g. spike sorting capabilities. You may also need a low-pass anti-aliasing filter because their DACs are unfiltered. Pawel --089e013a0772e29e8e04df6ee837 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable <div dir=3D"ltr"><div>Here is an alternative. There is a British company <a= href=3D"http://www.ced.co.uk">http://www.ced.co.uk</a> which makes data ac= quisition interfaces for electrophysiology. The interfaces=A0have TTL I/O, = ADCs (of course) and DACs, and they are programmable, i.e. they have own pr= ocessors that can run simple programs with timing closely coupled with data= acquisition.=A0 You can program them to respond with DAC output (e.g., aud= io) to a TTL pulse from a pressure sensor (or ADC input crossing a level) w= ithin tens of microseconds. However, you would have to spend about $5,900 f= or the cheapest interface and probably $2,800 for software (the latter unle= ss you want to go into low-level programming of the interface), and many of= the features could be of little use for you, e.g. spike sorting capabiliti= es. You may also need a low-pass anti-aliasing filter because their DACs ar= e unfiltered.</div> <div>=A0</div><div>=A0</div><div>Pawel</div></div> --089e013a0772e29e8e04df6ee837--