Impulse Tracker

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Impulse Tracker
[[Programmer|DeveloperTemplate:Pluralize from text]]Jeffrey Lim
Initial release1995; 31 years ago (1995)
Template:Infobox software/simple
Written inAssembly language
Operating systemDOS
TypeMusic tracker
LicenseOriginally freeware
Since 2014: BSD license
Websitewww.lim.com.au/ImpulseTracker/

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Impulse Tracker is a multi-track music 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 DOS platform.[1]

In 2014, on its 20th anniversary, Impulse Tracker became open-source software and the source code was released.

History

Impulse Tracker was authored by Jeffrey "Pulse" Lim for the DOS/x86-PC platform.[2] Impulse Tracker was coded in assembly language,[3] and the GUI was heavily influenced by that of Scream Tracker 3.[1]

The first version was released in 1995 and included example songs "Drifting Onwards" and "Blue Flame" composed by Jeffrey Lim and Chris Jarvis respectively. The software was distributed as freeware, though extra features, such as support for stereo WAV output and a personalized version of the driver for co-editing songs over IPX networks, were provided for a fee. After the stereo WAV writer plugin was leaked publicly,[4] Lim announced that he would discontinue development after version 2.14. The latest version was v2.14 Patch #5 released on April 8, 1999.[citation needed]

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.[5] 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.[6][7]

Functionality

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Like in most module editors, music is arranged on a grid of channels. Each supports note on and note off instructions similar to MIDI. Impulse Tracker modules use the .IT file extension.

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:[8]

  • 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.[9]
  • Fade: The old instrument fades out to 0 volume at a designated rate overriding the ADSR curve.

Impulse Tracker supports hardware MIDI channels on the Gravis Ultrasound, InterWave and Sound Blaster 32 card families (provided enough RAM is available).[10]

IT file format

The .IT file format is the format native to Impulse Tracker.[11] 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.

There is also the .ITZ format, which is a renamed zip file that contains a .IT file.

Compatible software

Other music-playing software that supports the IT file format include:

* - Supported only under IA-32 releases.[citation needed]

Usage and impact

Erez Eizen of Infected Mushroom and Shiva Shidapu composed his first trance music on Impulse Tracker.[15] Ian Stocker used IT with other software in his collaboration for the music in the Nintendo DS version of The Sims 2.[16]

The video games Pocket Tanks and Grid Wars use the IT format for some of their songs.[17] Various games by Epic Games such as the first Unreal and Unreal Tournament as well as Deus Ex used the IT format in a "UMX" container format.[18][19]

The video game composer and demoscener Andrew Sega (Necros) used Impulse Tracker extensively in his demoscene days.

C418 began making music in Impulse Tracker, before moving to eJay, MTV Music Generator and eventually Ableton Live, which he used to compose the Minecraft soundtrack.[20]

Trance producer Sean Tyas began his music production career using Impulse Tracker.[21] Electronic rock musician Blue Stahli has revealed to have used Impulse Tracker and other trackers in the past.[22]

Deadmau5's career began in the mid-1990s with a chiptune and demoscene movements-influenced sound with Impulse Tracker.[23]

Machinedrum used Impulse Tracker for many years before switching to Ableton Live.[24]

See also

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References

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  1. ^ a b Page Module:Citation/CS1/styles.css has no content.Kenneth B. McAlpine (2018). Bits and Pieces: A History of Chiptunes. Oxford University Press. p. 152. ISBN 978-0-19-049611-1.
  2. ^ Page Module:Citation/CS1/styles.css has no content.Leonard, Andrew (1999-04-29). "Mod love". Salon.com. Salon Media Group. Archived from the original on 2011-06-22. Retrieved 2010-05-17.
  3. ^ Page Module:Citation/CS1/styles.css has no content.Lim, Jeffrey. "Impulse Tracker". Retrieved 2010-12-07.
  4. ^ Page Module:Citation/CS1/styles.css has no content.Lim, Jeffrey. "Impulse Tracker Changelog". Archived from the original on 2010-12-03. Retrieved 2010-07-17.
  5. ^ Page Module:Citation/CS1/styles.css has no content.Lim, Jeffrey (February 16, 2014). "20 years of Impulse Tracker". Retrieved February 17, 2014.
  6. ^ Page Module:Citation/CS1/styles.css has no content."Added standard BSD License · herrnst/impulsetracker@d743c5d". GitHub. Retrieved 2023-04-07.
  7. ^ Page Module:Citation/CS1/styles.css has no content."Added sound drivers to repository · herrnst/impulsetracker@94c80b2". GitHub. Retrieved 2023-04-07.
  8. ^ Page Module:Citation/CS1/styles.css has no content."impulsetacker/IT.TXT". GitHub. October 19, 2014. Lines 1497 - 1511. Retrieved April 8, 2023.
  9. ^ Lim, J. (1995). Impulse Tracker II User Manual. Retrieved from [1](https://archive.org/stream/ImpulseTrackerIIUserManual/Impulse%20Tracker%20II%20User%20Manual_djvu.txt)
  10. ^ Page Module:Citation/CS1/styles.css has no content."impulsetracker/DRIVERS.TXT". GitHub. October 19, 2014. Lines 12 - 53. Retrieved April 8, 2023.
  11. ^ Page Module:Citation/CS1/styles.css has no content.Robert F. Young, ed. (2000). "Linux Journal". Linux Journal (75–80): 164. ISSN 1075-3583.
  12. ^ Page Module:Citation/CS1/styles.css has no content."Home". schismtracker.org.
  13. ^ Page Module:Citation/CS1/styles.css has no content."ChibiTracker".
  14. ^ Page Module:Citation/CS1/styles.css has no content.Matsuoka, Claudio (2007-11-04). "Tracker History Graphing Project". helllabs.org. Archived from the original on 2023-04-09. Retrieved 2011-01-29.
  15. ^ Page Module:Citation/CS1/styles.css has no content.Sean Davidson (Jan 3, 2003). "Trance Mushrooms to infect Pune". The Times of India. Retrieved 2010-05-16.
  16. ^ Page Module:Citation/CS1/styles.css has no content.Andy Jones (January 10, 2006). "From a Distance: The Virtual Collaboration that Helped Score The Sims 2 DS/GBA". Gamasutra. Retrieved 2010-05-16.
  17. ^ Pocket Tanks intro on SoundCloud
  18. ^ Page Module:Citation/CS1/styles.css has no content.Alexander Brandon. "Information on how to extract IT files out of UMX containers". Archived from the original on 2008-08-20.
  19. ^ Page Module:Citation/CS1/styles.css has no content."Interview with Alex Brandon". deusex-machina.com. Archived from the original on 2009-01-13. Retrieved 2009-01-10.
  20. ^ Page Module:Citation/CS1/styles.css has no content.Minecon 2012 - The Music of Minecraft & Minecraft Documentary, 28 November 2012, retrieved 2022-06-20
  21. ^ Sean Tyas interview
  22. ^ Blue Stahli twitter profile
  23. ^ Page Module:Citation/CS1/styles.css has no content.Burns, Todd L. (2008-09-30). "Deadmau5: It's complicated". Resident Advisor. 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.
  24. ^ Page Module:Citation/CS1/styles.css has no content.Shawn Reynaldo (2012-08-27). "In the Studio: Machinedrum". XLR8R.

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Sound examples

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