• Windows 2008 R2 Install a Device Driver From the Recovery Console

    This took me a surprisingly long time to figure out the solution.  If you are moving a bare metal image from one machine to another, you may need to install device drivers from the recovery console.

    Move all the driver files you need to install to a directory on a USB stick and execute from the command prompt:

    DISM /image:<driveletter> /add-driver /driver:<driver location> /recurse
  • Audio Test and Measurement Systems

    This past Wednesday, I gave my presentation on Audio Band Test and Measurement at the AES Pacific Northwest Section meeting. Although I didn’t get to talk about everything I wanted to, I think it was a good introduction to the inner workings of these systems which are so integral to modern Professional Audio.


    AES Presentation title Page

    Download the Power Point Presentation

    If any one has any interest, I will produce a few more installments, to cover the topics I just couldn’t fit into two hours:
    • 1. Time Frequency Analysis
    • 2. Impedance Measurements
    • 3. Analysis beyond Fourier
    Thanks to everyone who was able to attend the meeting, it was a great diverse turnout with lots of good questions. Mark DeArman


  • 3d-radar eBay

    Pretty cool eBay find.  A 3d-radar ground penetrating radar system.  I figured it would be loaded with commercial off-the-shelf parts which I might be able to reuse, and it was.  The SBC is an Intel T7600 with 2GB of RAM and an Intel 160 GB SSD drive.  It is running Windows XP Embedded.  The whole system seems to be written in Python 2.5. The signal in generated by an AD9858 evaluation board.  All of the front end is made out of connectorized Mini-Circuits parts. All of the DSP work is done with a Nallatech XtremeDSP Development Kit plugged into the Advantech PCI backplane.  Pretty cool design.  The FPGA kit has some type of Virtex 4 chip on it, two Analog devices 120 MSPS ADCs and two Analog Devcies 160MSPS DACs. They are only using one ADC for the radar.