Alastair Barber

I set up a VPS in Stockholm, but was a little surprised by the ping times from here in Helsinki to the server.

Earlier I discovered how to get a block of IP addresses, announce them to the internet, and have the traffic piped to a router at home.

Here’s the story of AS202858.

The venerable Si5351 pops up in a lot of applications related to amateur radio as a convenient and flexible Direct Digital Synthesizer (DDS).

The Weak Signal Propagation Reporting (WSPR) protocol is designed to allow for radio propagation conditions to be measured across different frequencies and times.

Here is a very simple tool that can be used to simulate producing sine waves from PWM pulses and an appropriate filter in LTSpice.

I decided to try and learn about WebAssembly from the ground up by building the (very simple) C++ PWL file generator for the web using WebAssembly.

This is a fun website that I recently put together for a hackathon run by Amadeus.

Update: Check out the FxGuide DigiPro Report On the 23rd of July, I’ll be presenting a paper at the Digital Production Symposium (DigiPro) in Anaheim called Camera Tracking in Visual Effects, An Industry Perspective of Structure from Motion \(Free Downloa…

I did this work as an earlier part of my EngD and it’s written up in the Elsevier Computers And Graphics Journal (free preprint version).

2020 Update - Much of the code and recommendations in this post will be well out of date!

JASIOHost is based upon the observer model of software design.

For my final year project, I had to design and code a digital audio mixing program, with an interface as a multi-touch table.