TB-303 is a
synthesiser/
sequencer produced by Roland
? in
1982. The TB-303 had a crucial role in the development of contemporary
electronic music. The well-known "acid" sound can be done with a TB-303 by playing a melody while changing the cutoff
?,
frequency, [envelope modulation]
? and accent
? on the
filter. The unit used a [sine wave]
? or a pulse wave and used a 2-pole [lowpass filter]
?. It also featured a simple step-time method of entering note data into the programable sequencer.
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