Linear arithmetic synthesis: Difference between revisions

Revision as of 13:44, 13 March 2022

Revision as of 16:54, 15 June 2022

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{{short description|Method of sound synthesis}}

'''Linear arithmetic synthesis''', or '''LA''' '''synthesis''', is a means of [[sound synthesis]] invented by the [[Roland Corporation]] when they released their [[Roland D-50|D-50]] synthesizer in 1987.<ref>{{cite web | url=https://www.roland.com/global/promos/d-50_30th_anniversary/ | title=Roland - D-50 30th Anniversary }}</ref>

== Overview ==

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LA synthesis combines traditional [[subtractive synthesis]] with [[Pulse-code modulation|PCM]]-based samples.

The term ''linear arithmetic'' refers to synthesis that puts sounds together in a timeline. Typically a PCM transient begins a note, which is then continued with a subtractive synthesis prolongation. Roland did not use the term ''additive'', as [[additive synthesis]] already refers to a different synthesis method.<ref>{{cite web | url=https://mixmag.net/feature/the-10-most-influential-synths-of-all-time | title=The 10 most influential synths of all time }}</ref>

This technology first appeared in 1987, in the [[Roland D-50]] synthesizer. At the time, re-synthesizing samplers were very expensive, so Roland set out to produce a machine that would be easy to program, sound realistic, and still sound like a synthesizer. Also, Yamaha had previously gained world market lead with their [[Yamaha DX7|DX7]] [[frequency modulation synthesis|FM synth]], which excelled at metallic, percussive sounds—something that Roland's synths using subtractive synthesis were less good at.

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** [[Roland CM-64]]

** [[Roland CM-500]]

** [[Roland D-05]]<ref>{{cite web | url=https://www.roland.com/global/products/d-05/ | title=Roland - D-05 &#124; Linear Synthesizer }}</ref>

** [[Roland D-10]]

** [[Roland D-110]]