USB Data aquisition board that works well with max msp ?


    Apr 20 2013 | 2:07 pm
    Hi,
    I am looking for a multichannel USB data aquisition board (DAQ) that will work more or less immediately with max - I want to get a stream of numbers in realtime measuring my signal with the minimum of faffing around - though I would like to add a filter. I would also like it to have at least 1000 hz sampling rate per channel .Here is an example though I dont know if it works with max :
    Any suggestions ?
    PS I do not wish to use an arduino for various reasons

    • Apr 20 2013 | 3:40 pm
      It looks like if you want the DI-149 to work faster than 240hz you have to pay an additional 195usd?
    • Apr 20 2013 | 4:24 pm
      Cheers. maybe this would be a better example :
      So I have a couple of questions :
      1. I am measuring very tiny electrical impulses - typically 40 mv above a background noise of 20 mv - but I will probably use an instrumentation amplifier to boost this.Can the Teensy do this (eg does it offer differential inputs) ?
      2. What is the sampling rate and is this divided amongst the channels ?
      3. How do I get the channels into max as seperate streams ?
    • Apr 20 2013 | 5:39 pm
      1) from my experience you'd be best off by amplification before hitting the device - thankfully amplifiers are extremely simple things.
      2) dunno, you'll have to look for the docs.
      3) see 2 - this is a fairly normal thing to be doing with these devices, so there should be precedents.
    • Apr 21 2013 | 9:19 am
      anyone else ?
    • Apr 21 2013 | 4:04 pm
    • Apr 21 2013 | 7:11 pm
      Some products here can sample at up to 50 kHz: http://labjack.com.
    • Apr 21 2013 | 9:17 pm
      @Roald -
      yes I have been looking at Labjacks stuff - its definately fit for purpose - how easily will it be to get the data into max though ?
    • Apr 22 2013 | 12:41 pm
      There's an external for the U12 model here: http://ljcontroller.bzhtec.com/?ljp=download
      Seems quite old but it's MacIntel-compatible however...
    • Apr 22 2013 | 4:05 pm
      @Roald - that looks perfect but ... I am using a windows PC - any other suggestions ?
      (don't say it - just....don't)
    • Apr 24 2013 | 9:52 pm
      noone got anything working labjacks or NI gear ?