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Name: John Holland
Type: User
Name: John Holland
Type: User
The new home of my blog/resource sharing website.
Different styles of web-architecture with a focus on blogging.
This is the core part of the GridSound's DAW application.
A set of 170+ Bootstrap based design blocks ready to be used to create clean modern websites.
For anyone who might benifit
Guitar delay pedal that samples an analog signal via digital polling. In order to achieve the desired effect an implementation of a FIR (Finite Impulse Response) was created. If you introduce an impulse, for example, a "1" sample followed by many "0" samples, the zeroes will arrive only after the "1" sample has made its way through the delay of the filter. The term finite impulse response arises because the filter output is computed as a weighted, finite term sum, of past, present, and future values of the guitar sample. A lack of feedback guarantees that the impulse response will be finite, however, in our case we would like to feed the past values of the sample array back into the output for “n” number of echoes. Although we have feedback in our filter, because the impulse response is finite, it is still considered a FIR. The delay pedal is a system in which the nth prior sample is subtracted (fed back) each time a new sample comes in. After an arbitrarily set number of samples of an impulse, the output will always be zero. To create the delay between impulses as described above, we stored our signal samples in an array of 20,000 elements and fed our echoes back using a circular buffer indexed by a variable dubbed “Windex”. In order to port an analog guitar signal into the PSoC board where we wish to manipulate it digitally, we had to create a preamp stage circuit that both offset it so that it contained minimal negative voltage and amplified it from the mV range into the 1V range. This circuit consisted of an Op Amp to amplify, a 5V reference voltage in ratio with parallel resistors to offset and a capacitor to block unwanted DC phenomenon at the output. In addition, our team also created a MATLAB program to simulate the FIR as a debugging resource, however this proved to be unnecessary as the device performed as expected albeit nearly momentarily. Once the guitar signal is digitally sampled and passed through the filtering delay, it is converted back to analog via the PSoC’s on board resources and subsequently amplified.
just some stuff to help keep me sane
Immutable persistent data collections for Javascript which increase efficiency and simplicity.
INTERVIEW-PREP-ARCHIVE
The simplest jQuery slideshow plugin. Evar.
Everything I know
password: 'whatissleep' Learning tool for Lambda Students By Lambda Students Latest Stable Build : 81c2322
Relearning how to code in C++ (it's been a while) (pun intended)(please forgive code style, structure & general readability; this is learning/practice only)
Material Design icons by Google
It's in the name
This is just a running list of notes without any unifying theme or structure, however it will generally be somewhere in the realm of web development.
youtube tutorial
A declarative, efficient, and flexible JavaScript library for building user interfaces.
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
The Web framework for perfectionists with deadlines.
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
We are working to build community through open source technology. NB: members must have two-factor auth.
Open source projects and samples from Microsoft.
Google ❤️ Open Source for everyone.
Alibaba Open Source for everyone
Data-Driven Documents codes.
China tencent open source team.