Duncan amp schematics I have been rooting around in my files to find all of the stuff that I gathered years ago for the Seymoure Duncan amp project. I have some schematics that are the same as those found on the diyguitarist site, but there are 2 that I found that I can’t find on the net, so I scanned…

Duncan convertible amp restoration I’ve had a 100-watt Seymoure Duncan Convertible amp head in my collection for a few years now. A friend of mine convinced me to pick this amp up on eBay since he had one and loved it. My particular amp was working but in need of some love. Well, I never got around to doing much…

MIDI over Websockets with Socket.IO In my last post I outlined how I used curl to send MIDI data over HTTP to a web app. The problem with this design is that HTTP has a lot of connection overhead that contributes to latency problems. To address the latency issues, I set up the Node Web application to use Websockets for…

MIDI over HTTP with using ALSA and Curl A few weeks ago, I created a small Node app called Dub Siren to demonstrate playing audio under Node using SDL. My plan was to expand the idea into a more fully-featured (musicalinstrument">sampler). One of the things that I wanted to check out was the audio latency) between the time a request…

SDL audio in Node.js I was looking around for a way to play sound from Node.js and found out that there is now a mixer/">SDLmixer module for Node.js. Previously I had looked at Irrklang and the corresponding Node module but I never felt that crazy about Irrklang. A while back I was following the development of JSONLoops, which is how…

Barebones Arduino While waiting for my Arduino Uno to show up, I thought I’d explore the Arduino ecosystem a little bit. I had an card.asp?partid=3301">Atmega48 chip lying around and I wondered if I could get it working to play around with AVR development in the meantime to familiarize myself with things a bit. After some research, I found that I…

Audiohackers JamCat design session At the last audiohackers meetup at Hacker Dojo I was talking with Laura and Kevin about the difficulties that I was having coming up with a way to build a small local network that I was calling a “JamLan”. I mentioned that I had been thinking about building a simple analog project that would use Cat5…

JamLan update I have been playing around with various network audio protocols recently, trying to come up with a solution for hosting music jams at the Hacker Dojo. I’ve been focusing mostly on Linux software since I have found that trying to find something fully cross platform isn’t very likely. The most promising software package has been PulseAudio. However, PA…

Local network audio I have been looking around at setting up a JamLAN (I think I just made that up) that could be used to implement a software-based JamHub. I figured that there would be plenty of ways to get this working on a local network (as opposed to over the Internet), but I was kind of disappointed. The basic…

New gear – foot controllers I’m going through some old notes that I’ve taken on possible future additions to my rig. Most of the stuff has to do with pushing the boundaries of my live performance setup, so lots of pedals and controllers. Here are the things I’ve come across. Behringer FCB1010 Behringer is known to make some kind of…