Linear arithmetic synthesis: Difference between revisions

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{{short description|Method of sound synthesis}}{{Original research|date=February 2024|reason=}}

'''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 April 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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** [[Roland D-20]]

** [[Roland D-50]]

** [[Roland D-550]]<ref>[https://encyclotronic.com/synthesizers/roland/d-550-r331/ Synthesizer Roland D 550] {{Dead link|date=February 2022}}</ref>

** [[Roland E-10]]<ref>http{{Cite web |title=Roland E-10 Owner's Manual |url=https://cdn.roland.com/assets/media/pdf/E-10_OM.pdf {{Bare URL PDF|access-date=March1 2022July 2025 |website=www.cdn.roland.com}}</ref>

** [[Roland E-15]]

** [[Roland E-20]]

** [[Roland E-30]]

** [[Roland Pro-E]]

**[[Roland JD-800]]

** [[Roland LAPC-I]]

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==Similar concepts==

Yamaha's [[Yamaha SY77|SY77]], its rack-mount equivalent [[Yamaha TG77|TG77]], and successor SY99 introduced Advanced Wave Memory 2 (AWM2), enabling playback and digital filtering of samples. Notably, these also let AWM2 samples be used as transients to Advanced FM (AFM) synth sounds, as looped oscillators in their own right, or even as modulators of AFM carriers. This, like LA, enabled more realistic modeling of physical instruments, and in combination with FM, new possibilities for synthesis. The SY99 seemed to be the last FM workstation by Yamaha, and the later FM synth [[Yamaha FS1R|FS1R]] did not feature AWM — so SY99 was seemingly the last synthsynthesizer into whichcombine AWM andwith fully-fledged FM could be combined. This was until the [[Yamaha Montage|Montage]] in 2016, which combines a later version of AWM2 with FM-X (an offshoot of the FM engine from FS1R, without the latter's Formant Synthesis) - though without letting samples be used as modulators, as the 77/99 series did. In any case, AWM sampling on its own has become a mainstay of subsequent flagship Yamaha products, such as the Yamaha EX5, [[Yamaha Motif|Motif]], and Montage lines — which still use the umbrella term AWM2, though the engine's details have changed many times.

[[Casio]] has also developed a similar synthesis system known as ''Advanced and High Quality Large Waveform'', better known as AHL, for use on their portable keyboard line.

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Ensoniq with the [[Ensoniq SQ-80|SQ-80]] called the same technique Cross Wave Synthesis. Kawai with the [[Kawai K4|K4]] called the same technique Digital Multi Spectrum.

Korg's Modwave engine was designed to do both the morphing wavetable and sample synthesis (even combined), along with the usage of MS-20 filters due to its slope, which makes it closer to Roland's D-50 / D-550 / D-05 LA synthesizers. Some features are limited to layers instead of individual oscillators (e.g. filters).

==References==

{{reflist}}

==External links==

* [http://llamamusic.com/d110/index.html '''ROLAND D-110 HOMEPAGE''' - A Website Dedicated To The D-110 Synth Module - Patches, Tones, Utilities, Info, DIY's, Reference Materials]

{{Sound synthesis types}}

[[Category:Sound synthesis types|L]]

==External links==

* [http://llamamusic.com/d110/index.html '''ROLAND D-110 HOMEPAGE''' - A Website Dedicated To The D-110 Synth Module - Patches, Tones, Utilities, Info, DIY's, Reference Materials]