High Quality Content by WIKIPEDIA articles! The Yamaha FS1R is a sound synthesizer manufactured by the Yamaha Corporation from 1998 to 2000. Based on Formant synthesis, it also has FM synthesis capabilities similar to the DX range. Its editing involves 2,000+ parameters in any one 'performance', prompting the creation of a number of third party freeware programming applications. The synth was discontinued after 2 years, probably in part due to its complexity (particularly the formant sequencing), poor front-panel controls, brief manual and limited polyphony. The FS1R uses the "formant sequence", this being a series (128 or 512) of "frames" that define the level and frequency of each of up to 8 'voiced' (pitched) and 8 'unvoiced' (un-pitched) formant generators over time. The number of frames limits the typical length of a sequence to a few seconds, though this length and pitch can be varied in real-time with few or no artefacts. Applying a formant sequence to a sound allows a complex, evolving sound to be programmed in a relatively short time. 90 formant sequences were supplied with the FS1R.

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