- From: Frank Mori Hess <fmhess_at_users.sourceforge.net>
- Date: Sat, 24 Jul 2004 12:20:44 -0400
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Wednesday 21 July 2004 12:56 pm, Michael Carley wrote: > Hello, > I have a problem with a NI-PCI-MIO-16E card if I try to take > data on more than four channels. I am calibrating microphones in an > array and when I sample on 1 (or 4) channel(s), the calibration signal > (a 1kHz sinusoid) is fine. If I sample on more channels, the sampled > signal is distorted and its spectrum looks like a 2kHz sinusoid. I am > using the code from cmd.c to read() from the device. > > Has anyone seen this before and do they know what is causing it? How fast are you sampling? Maybe you are just hitting the board's maximum sampling rate - -- Frank -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) iD8DBQFBAoxc5vihyNWuA4URAhyvAKCH3jezZqm5FWrJ6Y1azOJWReUFngCfarxx 4Y5ED+l4yt8isrqFzpa8m5A= =XVx6 -----END PGP SIGNATURE-----
Received on 2004-07-24Z15:20:44