Vesa Halttunen - Bits and Bytes

Bits and Bytes

Here are a few software projects I've done or been involved in.

Tutka

Tutka is a tracker style MIDI sequencer for GNU/Linux. I wanted to continue composing the songs I had written using an Amiga program in a modern environment so I decided to write a similar program of my own. Tutka is my main project.

Siepura

Siepura is an "analogue sound modelling" software synthesizer for GNU/Linux. If has 24 voice polyphony, 3 oscillators, 2 ring modulators (can be swapped for frequency modulators on oscillator 3), noise generator, 2 LFOs capable of oscillating at audio rates, 3 ADSR envelopes, 24db resonant lowpass filter and a comprehensive modulation matrix with 130 possible routings. It uses the ALSA sequencer API for MIDI input and ALSA for audio output.

Major Release

Major Release is an Amiga 500 demo for the Assembly 2004 oldschool demo competition. Technically it is the most demanding personal project I've done so far. I tried to push both the old computer and myself as far as I could. The result was satisfying and reached the second place in the competition. The source code is also available.

Hätä

Hätä is a cross platform demo for the Assembly 2002 demo competition. It is also an example of what I can do on the multimedia front. It uses JRm-core, my portable demo engine. An Amiga 500 version is also available.

Noir

Noir is a non-linear short story for a Music and Media course at CM&T. It was available for the public in the MUU gallery from April 22nd to May 4th, 2003. Noir was done together with Panu Aaltio and with voice acting by Simon Boswell. It uses JRm-core, my portable demo engine.

Damicon TV Commercial

A TV commercial made for Damicon Kraa Oy. It was shown on the ATV channel in Helsinki during December 2002. The commercial was based on Hätä and also uses JRm-core, my portable demo engine.

www.jormas.com

dA JoRMaS is a group of people sharing the interest in techno music related multimedia production creation using Amiga (and these days also other) computers. I am responsible for the technical implementation of dA JoRMaS' web site.

8210play

8210play is a ringing tone editor and converter by Nakai Design Oy. I implemented a new graphical user interface and the editor into it in December 2002.

Miscellaneous

68k softsynth. A software synthesizer for the 68000 microprocessor. It features 3 oscillators (saw/square), noise, hard sync, ring modulation, frequency modulation, 3 envelopes, 2 LFOs and a 24dB resonant filter. Realtime on 68040/40. Example sounds: 1, 2, 3
Raw saver plug-in for The GIMP. A plug-in for The GIMP for saving images as raw data.
EPSEd. An editor for the Ensoniq EPS16+ Digital Sampling Workstation.
The UNIX version of XPK. A library system for easier handling of crunching and decrunching.
dA JoRMaS' productions. I've been involved in about 100 Amiga demo scene productions of which most I have programmed. I've also composed quite a lot of music for them.