Encyclopedia > Roland TB-303

  Article Content

Roland TB-303

The TB-303 was a synthesiser/sequencer produced by the Roland corporation in 1982 that had a crucial role in the development of contemporary electronic music. The well-known "acid" sound can be produced with a TB-303 by playing a melody while changing the cutoff[?], frequency, envelope modulation[?] and accent controls on the filter.

The unit used a half cosine wave[?] (i.e. from 0 to 180 degrees repeating) or a square wave[?] (which is actually not really a square but an alternation between a regular saw and a saw upside down) (switchable between the two) and used a lowpass filter[?] with a rolloff of -18 dB per octave.

It also featured a 'simple' step-time method for entering note data into the programmable sequencer. This was notoriously difficult to use, and would often result in entering a different sequence than the one that had been intended - some users also take advantage of the quirky fact that when the batteries are removed for a certain period, patterns that are programmed in memory begin to vary in random ways - one of the factors that helped to create the randomish "Acid" sound.

All Wikipedia text is available under the terms of the GNU Free Documentation License

  Search Encyclopedia

Search over one million articles, find something about almost anything!
  Featured Article
List of closed London Underground stations

... of the London Underground and its predecessor companies (such as the Metropolitan Railway, the City and South London Railway and Underground Electric Railways of London) ...

This page was created in 24 ms