Category: Resources

For your enjoyment: Digitally Controlled Analog Surround Sound Panning   Presentation:   Circuit Explination:   Presentation documents: 0 – TPJ – Technical Presentation 0 – TPJ556-FINAL report DCASSP-COMPLETE 0 – TPJ556-FINAL report DCASSP-SCHEMATICS V1     Project Source Code:   …

Arduino Project – Digitally Controlled Analog Surround Sound Panning – Open Source Read More »

Adding to the book list for 2015.  Lots learned and so much more to learn!

I love these Logitech Marble Mouse trackballs, I have one for every computer.  After a few years they slow down physically.  Cleaning the dust off does not help enough, something different needed to be applied.  I’ve been researching lubricants and …

Fixing Logitech trackball performance Read More »

Summer sale! Cleaning out the shop…  more to follow                       WBS-L – 10-060 : PPM Meter Driver WBS-L – 14-260 : Mic-Preamp and HP Filter WBS-L – 4-109 : Amplifier …

Spring Cleaning – leads to… Read More »

Someone picked my brain the other day looking for a technique to compress language files. After walking away to think about it… my method was to re-order the ASCII code to the letters by their frequency and the most common words …

On Compressing the English Language Read More »

A colleague posed a very interesting question: “I am looking for any music/music math wizard help me figure this out. If I am moving the pitch of a song up by 50 cents (a quarter step?) What frequency is A …

Music Note Frequency Calculator With Cent Adjustment Read More »

Dave Adams did my a solid today.  I needed some support cut to exactly 1.6 *12 plus 0.02 worth of “wiggle room” spaced over 12 modules.  He has the tools and knows them too well!  Thanks again Dave! 

This would be a dream for the test bench.  Simple, robust effective analysis tools!   I would be happy with an old system one… but this would be on the shelf in a heartbeat.  The APx515 is a high performance …

sound guy Xmas idea: APx515 2-Channel Audio Analyzer Read More »

A fantastic and very thorough history of sound recording and playback systems in theatres

To better understand the behavior of a Passive Resistor Inductor / Resistor Capacitor I built another excel calculator…. ly

a whole semester summed up in one drawing   From the Art of Electronics second edition – Paul Horowitz and winfield Hill  

I’ve been calculating a lot of components in series lately for an ECR255 class. I’ve also had to graph them on impedance diagrams and a power triangle. In an effort to better understand the math I made a calculator for …

RLC calculator for components in series Read More »

In the 70’s and into the 90’s WBS used a Schadow switch in almost every product they built. Different buttons required different offsets so “GOLDEN RULES” of design were made up so each engineer was on the same page. I …

schadow switch mounting information Read More »

NPN: Not Pointing in PNP: Pointing In

Check out Jörg Wuttke, Understanding Microphones Jörg Wuttke was born in Berlin in 1942. He studied electronics and telecommunications at Karlsruhe University, specializing in acoustics, and was teaching assistant to professor Günther Kurtze, the inventor of the shotgun microphone. He …

Wednesday night TV Read More »

I’m almost done week 2 of semester two… by themselves they are intimidating, but as a stack they are frightening.

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