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July 10th 2011 Version 1.2

Version 1.2 introduces a major new search tool that makes it possible to create time-intervals for each instrument where anything will match in the database. This greatly expands the capability of GD to do "fuzzy" matches and also solves the problem of matching flams and echoes. This makes it the first search algorithm ever to have such a feature.

There are also a number of other new upgrades, additions and fixes that makes this release one to download right away!

February 26th 2011 MIDI Version released

For those who work primarily with MIDI files, CPU Productions has released a low cost alternative to the full version of Groove Detective. This MIDI-only version has all the features and capabilities of the original, except those relating to audio analysis and retrieval.

GD MIDI can analyze, catalog and index even very large collections of MIDI loops in a manner of seconds, so it's quick and easy to get up and running and starting searching for the loops you need. The two versions will be kept on the same development track, so all future enhancements will be automatically incorporated into both. Upgrades from the MIDI to the full version are available for the price difference.

January 10th 2011 Version 1.1

CPU Productions releases version 1.1 of Groove Detective.

This version has a significantly improved analysis and detection engine. In particular, careful attention has been paid to 'non-standard' acoustic drum loops. It now has a much higher recognition percentage for loops with high compression rates, deliberate signal distortion and 'unusual' drum sounds.

Other new improvements include various Midi enhancements/additions and a new folder browser you can open with one right-click on the Result window. The resulting 'Play' window will show all the loops that are in the same folder as the loop you clicked on.

September 23rd 2010 Web Release

CPU Productions, a technology company based in Santa Barbara California, today released the first public version of Groove Detective, a revolutionary new tool for searching in very large collections of drum and percussion loops.

As producers’ and musicians’ collections of audio loops used in music productions of all stripes grows steadily year by year, so does the accompanying problem of finding exactly what you need, when you need it. Even though specific libraries from vendors may be sensibly organized into styles, tempo and so on, there is no agreed-upon system for doing this and rarely does a user take the time and effort to consolidate all these disparate libraries. The result is that the collection is spread over a large number of folders, making it exceedingly difficult and time consuming to audition potential candidates when it matters the most: at the moment of inspiration and creation.

Groove Detective solves this problem once and for all. By analyzing all the loops the user has and consolidating all the data in a single searchable database, it no longer matters where the loop is stored. The information in the database allows the user to search for loops based on the pattern of drum hits in the loop itself, not on how it is named or in which folder it resides. The search pattern can be made as narrowly specific or as widely fuzzy as one wishes, depending on the need of the moment. There is also an option of including a “sounds like” dimension to a search. For example, if one is looking for loops that have a particular snare drum sound, one need only provide that sound to the search engine and the degree to which the sound should match.

In the result browser one can further refine the search by filtering on tempo, ‘pitched-ness’, file type, sample rate and so on. Once a choice has been made, the loop can simply be dragged into a track in the DAW production software (if it is so enabled), without ever having to enter any file open or import dialog.

This technology is based on over a decade of research in audio analysis and Music Information Retrieval (MIR) systems.

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