Other Formant Applications; Fm Synthesis - Yamaha FS1R Owner's Manual

FSeq Formant Control Parameters
The following parameter groups and parameters are essential for FSeq formant control. Refer to the parameter
descriptions for details:
• EDIT [PERFORMANCE] mode COMMON/Fseq/ .....................................Page 32
• EDIT [VOICE] mode OPERATOR/Osc/.....................................................Page 62

Other Formant Applications

By modifying our approach slightly and thinking of each FS1R formant operator as a combination of oscillator, filter,
and amplifier (similar to the standard VCA
to come up with some innovative uses for these flexible sonic building blocks. For example, although each formant
is basically a bandpass filter, if we broaden the bandwidth enough and lower the center frequency we end up with
what looks more like a low pass filter. If we add another narrow-bandwidth formant to our low-pass filter we end up
with a resonant low-pass filter.
The unvoiced operators also offer some unique possibilities. Although they basically produce noise, if the bandwidth
of the formant is made narrow enough we remove all harmonics and end up with a pure sine wave. Thus, in some
applications the unvoiced operators can actually be used as extra oscillators.

FM Synthesis

The fact that Formant Shaping synthesis uses a system of operators to produce sound is what makes it compatible
with FM (Frequency Modulation) synthesis. By rearranging the operators into a variety of "algorithms" with
carrier/modulator relationships between certain operators, the FS system is fully capable of producing the same type
of FM sounds as the Yamaha DX-series synthesizers and TX-series tone generators.
The FS1R actually takes FM synthesis to new levels of musical versatility and control. Unlike Yamaha's original FM
synthesizers and tone generators the FS1R provides a range of 88 algorithms to choose from, and a choice of 8
different waveforms for each oscillator, thus significantly expanding the range of sound which can be produced.
And, of course, the ability to combine Formant Shaping with FM opens a whole new universe of musical possibilities.
Not only is the FS1R capable of reproducing the great sounds of the DX and TX-series instruments, it actually comes
with a complete set of 1,152 original DX voices pre-programmed in preset memory If you have other DX voices you
have programmed yourself or obtained from other sources, they can be loaded into the FS1R too, and used with
virtually no change in sound (See the separate "Data List" booklet for details on parameter compatibility).
n
The FS1R can receive bulk voice data from Yamaha DX-series synthesizers and TX-series tone generators. The received data (single voice)
will be loaded into the part 1 voice edit buffer of the currently selected performance setup.
VCF
Synthesized Low-pass Filter
VCA structure of traditional analog synthesizers), it is possible
Synthesized Resontant Low-pass Filter
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