The subsequent SD synthesizers were marketed as advanced home keyboards (i.e., including speakers and programmable accompaniment) launched under the HT prefix (with the notable exception of the non-editable, preset-only Casiotone version, the MT-600).
Yamahas then-active lawsuit against Casios PD synthesis method, which claimed PD synthesis infringed on patents of Yamahas including their famous frequency modulation synthesis, may also have contributed to Casios development of SD synthesis to diversify their offering. In turning to SD synthesis Casio meant to create a synthesis engine that was more comprehensible and accessible than Phase Distortion synthesis.
When Casio decided to retire the CZ line, they decided to go in two directions: more complex (the VZ Interactive Phase Distortion line), and more traditional (SD synthesis, starting with the HZ-600). There still exists a small but devoted fanbase who insist that SD synthesis, particularly as expanded in the high-end model HT-6000, was overlooked and highly underrated and today really rare. Casio Vz Editor Plus Casios Poorĭue to some programming limitations plus Casios poor marketing, the SD synths never gained wide popularity and are now fairly rare in the second-hand marketplace (which adds to their charm, according to some). SD synthesis is used in six Casio synthesizers and home keyboards released in 1987 and produced until 1991, when Casio exited the synthesizer market completely and focused solely on pure consumer keyboards. SD synthesis was traditional DCO-analog synthesis, with the main difference being that some of the SD waveforms harmonic spectrums changed temporally, or dynamically in relation to the amplitude envelope. Please help improve this article by adding citations to reliable sources.įind sources: Casio SD Synthesizers news newspapers books scholar JSTOR ( March 2008 ) ( Learn how and when to remove this template message ). March 2008 ) ( Learn how and when to remove this template message ). Statements consisting only of original research should be removed. Please improve it by verifying the claims made and adding inline citations. Learn how and when to remove these template messages ).
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