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Impulse Tracker 2.14 screenshot
2.14 Patch #5 / April 8, 1999
|Written in||Assembly language|
Impulse Tracker is a multi-track digital sound tracker (music sequencer). Originally released in 1995 by Jeffrey Lim as Freeware with commercial extensions, it was one of the last tracker programs for the MS-DOS platform.
Impulse Tracker was authored by Jeffrey "Pulse" Lim for the MS-DOS/x86-PC platform. Impulse Tracker was coded in Assembly language, and the interface was heavily influenced by that of Scream Tracker 3.
The first released version is from year 1995 and included example music was provided by Jeffrey Lim and Chris Jarvis. The software was distributed as freeware, though for a fee the author supplies extra features, such as support for WAV output and co-editing songs over IPX networks. After the stereo WAV writer plugin was publicly pirated, the original author announced that he would discontinue development after version 2.14. The latest version was v2.14 Patch #5 released on April 8, 1999.
On February 16, 2014, Jeffrey Lim announced that he would release the complete source code of Impulse Tracker as part of its 20-year anniversary. On October 19, 2014, the first part of the source code was released on a Bitbucket repository. On December 25, 2014, the missing parts (sound drivers) were added and the code was officially released under the BSD license.
New Note Actions (NNAs) is a feature that handles commands received on the same channel as another instrument which is still playing. NNAs allow the user to customize the subsequent action:
- Cut: The new instrument replaces the current instrument.
- Continue: The old instrument continues to play using its ADSR curve.
- Off: The old instrument begins the release section of its ADSR curve.
- Fade: The old instrument fades out to 0 volume at a designated rate overriding the ADSR curve.
IT file format
The .IT file format is the format native to Impulse Tracker. It is similar to older formats such as .MOD, but features new additions such as new note actions which allow the user to customize subsequent actions on receiving commands from the same channel as the one playing.
Other music-playing software that supports the IT file format include Media Player Classic, Winamp (Win32), VLC, Cowon jetAudio, XMMS (X11 Linux/Unix), TiMidity, MikMod, ModPlug Tracker, Renoise (Win32, GNU/Linux and Mac OS X), SVArTracker (Win32), XMPlay, and Schism Tracker (Win32, Linux, Wii and Mac OS X) which is an Impulse Tracker reimplementation. Open Modplug Tracker supports the IT format and has its own format MPTM which is the IT format with added capability.
Usage and Impact
Erez Eizen of Infected Mushroom and Shiva Shidapu composed his first trance music on Impulse Tracker. Ian Stocker used IT with other software in his collaboration for the music in the Nintendo DS version of The Sims 2.
The video games Pocket Tanks and Grid Wars use the IT format for some of their songs. Various games by Epic Games such as the first Unreal and Unreal Tournament as well as Deus Ex used the IT format in an "UMX" container format.
Trance producer Sean Tyas began his music production career using Impulse Tracker. Electronic rock musician Blue Stahli has revealed to have used Impulse Tracker and other trackers in the past.
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- Gerador Zero - Zero (mp3) (.IT module), Come To Dreamland by Fernando Pereira Aratti (MP3 version)(.IT module), Shiva Shidapu - Power of Celtic (.IT module)
|Wikimedia Commons has media related to Impulse Tracker.|
- Impulse Tracker website
- Jeffrey Lim's blog
- Impulse Tracker source code on Bitbucket
- SDL versions of schismtracker for Debian, FreeBSD
- License of Impulse Tracker on bitbucket
- Leonard, Andrew (April 29, 1999). "Mod love". Salon.com. Salon Media Group. Retrieved 2010-05-17.
- Lim, Jeffrey. "Impulse Tracker". Retrieved 2010-12-07.
- Lim, Jeffrey. "Features of Impulse Tracker". Retrieved 2009-04-07.
- Lim, Jeffrey. "Impulse Tracker Changelog". Retrieved 2010-07-17.
- Lim, Jeffrey (February 16, 2014). "20 years of Impulse Tracker". Retrieved February 17, 2014.
- Matsuoka, Claudio (2007-11-04). "Tracker History Graphing Project". helllabs.org. Retrieved 2011-01-29.
- Sean Davidson (Jan 3, 2003). "Trance Mushrooms to infect Pune". The Times of India. Retrieved 2010-05-16.
- Andy Jones (January 10, 2006). "From a Distance: The Virtual Collaboration that Helped Score The Sims 2 DS/GBA". Gamasutra. Retrieved 2010-05-16.
- Pocket Tanks intro on SoundCloud
- Information on how to extract IT files out of UMX containers
- "Interview with Alex Brandon". deusex-machina.com. Retrieved 2009-01-10.
- Sean Tyas interview
- Blue Stahli twitter profile
- Burns, Todd L. (2008-09-30). "Deadmau5: It's complicated". residentadvisor.net. Retrieved 2014-09-03.
I was in my Mom's basement tooling away on Impulse Tracker on a 386 just doing Nintendo music until some Loop Library company hired me as a producer.
- xlr8r Machinedrum interview