What kinds of effects can I make with the Ez-Kit Lite?

So far, the following effects have been implemented:

  • Skank: bit reduce, pitch-shift, ring modulation, distortion, delay, pan,
  • band-pass filters, 1st order low-pass filters, 2nd order low-pass filters.
  • Additionally, you can make anything your heart desires, since the kit is completely programmable. Also, you should find it fairly easy to combine these effects together.

    (How) Can I make a resonant filter with a DSP? (Steve R.)

    There are two ways:

  • 1) Make a 2nd Order Chebyshev filter...it looks like a low-pass filter, but instead of gradually cutting off, the transfer characteristic has something called a passband ripple, that gets real steep just before cutting off! Want to see what a I mean? Run this java applet someone wrote! It even gives you the coefficients for your filter. Suggested settings to see the characteristics of a resonant filter's transfer function: Filter type: LP, Prototype: Chebyshev, Filter Order: 4, Passband: 0 to 1000Hz, Passband ripple: 50 dB. Click Design, then Frequency response, and Coefficients. IIR digital filter design applet Dr. Iain even gives you the source code, how cool is that?

  • 2) create a dual-integrator State Variable Filter (SVF). Soon, some software will be posted to do this

    Can I use the Kit to make my own synthesizer?

    Yes, you can! So far, two synthesizers have been created. One is the Death Synth and the other one I haven't put online yet cuz I've been so busy. It was written by a list member in GERMANY. Also, hopefully soon, on this site, you'll find code outlines for a synthesizer, as well as full synthesizer implementations!

    If you want to see some early work on the Death Synth, check the software section for a simple two-voice wavetable synthesizer! It doesn't even have envelopes!

    What do you get with the Ez-Kit Lite?

    You get a small PC Board containing the DSP, a Wall Wart Power Supply to go along with it, a serial cable to connect to a PC, a user's manual *with schematic* for the kit, disks containing software and an extremely valuable programmer's reference manual for the 2181.

    What software does it come with?

    Compiled images and source codes for all of the following are included: bandpass filter, touch-tone demo, analog string simulation (plays Stairway to Heaven!), some speech-compression stuff, and an echo(-canceler).

    Can I power it using batteries?

    Yes, a 9V Alkaline cell runs the kit from 30-60 minutes.

    What is the EZ-Kit Lite?

    A single board computer that contains everything you need to experiment with audio effects algorithms, for only $90. See Also This Link Here

    Is this fun?

    Yes, it is *really* fun.

    What models of the EZ-Kit are available?

    There are two models of the EZ-Kit Lite: One for the 2181 Processor, and one for the SHARC. This site is dedicated to the 2181 version.

    Where did it come from?

    It is made by Analog Devices , and was originally intended as an evaluation board for engineers.

    (How) can I contribute to this website?

    Join the mailing list! post stuff to the list! Send me e-mail I am interested in software, pictures, schematics, pcb's, algorithms, and more FAQ questions.

    What kinds of effects can I make with the Ez-Kit Lite?

    So far, the following effects have been implemented:

  • Skank: bit reduce, pitch-shift, ring modulation, distortion, delay, pan,
  • band-pass filters, 1st order low-pass filters, 2nd order low-pass filters.
  • Additionally, you can make anything your heart desires, since the kit is completely programmable. Also, you should find it fairly easy to combine these effects together.

    (How) Can I make a resonant filter with a DSP? (Steve Richardson)

    There are two ways:

  • 1) Make a 2nd Order Chebyshev filter...it looks like a low-pass filter, but instead of gradually cutting off, the transfer characteristic has something called a passband ripple, that gets real steep just before cutting off! Want to see what a I mean? Run this java applet someone wrote! It even gives you the coefficients for your filter. Suggested settings to see the characteristics of a resonant filter's transfer function: Filter type: LP, Prototype: Chebyshev, Filter Order: 4, Passband: 0 to 1000Hz, Passband ripple: 50 dB. Click Design, then Frequency response, and Coefficients. IIR digital filter design applet Dr. Iain even gives you the source code, how cool is that?

  • 2) create a dual-integrator State Variable Filter (SVF). Soon, some software will be posted to do this

    Can I use the Kit to make my own synthesizer?

    Yes, you can! So far, two synthesizers have been created. One is the Death Synth and the other one I haven't put online yet cuz I've been so busy. It was written by a list member in GERMANY. Also, hopefully soon, on this site, you'll find code outlines for a synthesizer, as well as full synthesizer implementations!

    If you want to see some early work on the Death Synth, check the software section for a simple two-voice wavetable synthesizer! It doesn't even have envelopes!