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Most cam timers use a miniature mains synchronous motor to rotate the mechanism at an accurate constant speed. Occasionally more complex timers with two motors are seen. A drum sequencer is a re-programmable electromechanical timing device used to activate electric switches in repetitive sequences.
Drum sequencer (controller) A cam timer controller device This page was last edited on 28 December 2019, at 08:24 (UTC). Text is available under the Creative ...
The PLC originated in the late 1960s in the automotive industry in the US and was designed to replace relay logic systems. [2] Before, control logic for manufacturing was mainly composed of relays, cam timers, drum sequencers, and dedicated closed-loop controllers.
Hydrogen is an open-source drum machine created by Alessandro Cominu, an Italian programmer who goes by the pseudonym Comix. [1] Its main goal is to provide professional yet simple and intuitive pattern-based drum programming. Hydrogen was originally developed for Linux, and later ported to Mac OS X and Windows.
The Linn 9000 was Roger Linn's first attempt to create an integrated sampling/sequencing/MIDI workstation, but it was plagued with problems from the beginning. [5] [6] On early models, the power supply over-heated the CPU and had to be replaced under warranty, but insurmountable issues with the Linn 9000's operating system forced its eventual demise.
The SP-1200 can store up to 100 patterns, 100 songs, and has a 5,000-note maximum memory for sequences. [6] The sequencer enables musicians to create patterns using both step programming and real-time recording using the touch-sensitive [5] [6] front panel buttons (and via external MIDI note input).
The Roland TR-808 Rhythm Composer, commonly known as the 808, is a drum machine manufactured by Roland Corporation between 1980 and 1983. It was one of the first drum machines to allow users to program rhythms instead of using preset patterns.
Yamaha supplies 60 preset styles. Patterns may be programmed step-wise, like a drum machine, or recorded in real-time from MIDI input and control-surface buttons and knobs. A sequence of patterns may be chained together in up to 999 chain slots. The RM1x can save up to 20 songs at a time in memory, from sequenced or realtime recorded MIDI events.