You've landed on Dick Campbell's home page! (updated 12/05/2007)  

 

CATT-Acoustic       Price Change November 1

AkAbak

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            Celebrating 31 years of designing and shipping miniature audio circuit modules to OEM users!

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Consulting engineering services in the fields of audio, acoustics and related control systems.
Multi-track location recording and surround sound mastering.

• Microprocessor solutions using the Motorola 68HC12 family.
• Loudspeaker design and measurements
  • Contributing Editor to AudioXpress Magazine
• Room acoustic measurements
  • Do you need a dodecahedron loudspeaker?
    Download a PDF drawing of the dodec shell.(37K)
• Acoustical signal analysis
  • Meet my mosquitoes
• Surface-mount audio circuit modules for OEM's 
                In production: new module MM4S: stereo preamp for 2W or 3W electret microphones,
  measuring ~3/4 by 1.5 inches (~19mm by 38mm), all SMT, 9-12V supply, low current, easy
  access for gain switching or volume control,  optional HF and LF equalization, optional mic bias regulator.
  MM2: 9-volt micropower high-performance electret microphone preamp.
  What can this tiny amplifier do for me?
  Download a PDF datasheet (74K) 6/24/96
  Download a microphone system drawing (19K) 10/18/96
  • 919A: Dynamic to electret mic converter [12 x 18 mm!]
  • Checkout the new MM3B balanced mic preamp.
    Read the story behind the MM3B
    Download a pc board illustration (119K) 11/30/2001
  • I also taught acoustics and audio engineering for 22 years in the
    ECE Department at WPI (Worcester Polytechnic Institute)
  • Once in a while I have some fun --
    Was that cannon fire on Vineyard Sound? ( 250K )
    

• Engineering software for acoustic simulation.

  • CATT-Acoustic: room acoustics simulation program
  • AkAbak: Spice-like acoustic network simulation software
    
  • Look for our ad in Voice Coil and
    The Loudspeaker Industry Sourcebook

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  Copyright © 1996-2006 Dick Campbell
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