RTMS Vapolytzfm is a new plugin synthesizer FM polyphonic AUV3 through zero for iOS and macOS (Silicon Apple only).
The FM through zero has become a subject this spring when the Italian FRAP tools introduced the Magnolia synthesizer to SuperBooth 2025. It is a synthetic technique often observed in complex oscillators, for example.
The advantage of this, unlike the exponential or linear FM, is that TZFM remains in agreement whatever the depth of modulation. TZFM is not only a material thing. Ryo Togawa has just published Vapolytzfm, a new polyphonic synthesizer for iOS / macOS using an FM through zero.
RTMS Vapolytzfm
Vapolytzfm is a new polyphonic synthesizer with 8 voices with an FM through zero for macOS and iOS.
Given that RTMS often releases several versions of its synths, it should be noted that Vapolytfzm is a single-layer synthesizer with two oscillators with a continuous variable wave form (triangle, saw, square teeth). Strange, no sinusoidal wave.
Each oscillator has conventional controls, including adjustment, fine, shape and level. There is a dedicated area for the TZFM function where you can accurately compose the FM amount. In addition, you can modulate everything with an envelope and an LFO.
According to RMTS, the FM through zero is capable of maintaining height and allows it to provide more musical results than other types of FM.
In addition to the FM, you have modulation options of pulse width, crossed module and hard synchronization for oscillators. In addition, you have a pink / white noise oscillator that can be mixed with the signal.
Then, it passes through a resonant low-low filter with slopes of 12 dB and 24 dB per selectable octave, and an upper pass filter with a slope of 12 dB by Octave. Frequency modulation on the filter is possible via an ADSR envelope, an LFO and a key follower.
In the modulation menu, you can find two ADSR envelopes with late time and key tracking settings, and two LFOs per multimode layer. To refine your sounds, it also hosts a multi-FX processor with delay, choir, flaning, EQ, compressor and reverberation.
In addition, it has an analog style sequencer, an arpeggiator, eight attributable macro controllers and an integrated recorder.
AUV3 support
RTMS Vapolytzfm can be traditionally played with the interface keys or with a MIDI keyboard.
Like Ryo Togaware other synths, it is also an AUV3 plugin on iOS and macOS (native Silicon Apple only. This allows you to use it in several cases in your DAW.
The application is dispatched with 256 factory presets to immediately know the application.
https://www.youtube.com/watch?v=rphpeamn1ce
https://www.youtube.com/watch?v=hpirccqaqb8
First impression
At first glance, Vapolytzfm is another beautiful synth to the sound of Ryo Togawa. However, I would like to see the developer publish a flagship synth of Vapoly in the future with all the features found in five other Vapoly applications. Otherwise, you slowly lose the trace of the RTMS synth is the best.
RTMS Vapolytzfm is now available for a launch price of $ 5,99 instead of $ 14.99. It works as an autonomous application and an AUV3 plugin on macOS (Apple Silicon native) and iOS (iPhone / iPad).
More information here: Apple App Store
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