Rainbow Circuit Whistle, physical modeling meets granular in a new M4L synth

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Rainbow Circuit has released Whistle, a new Max For Live Synthesizer that creatively combines physical modeling and granular synthesis. 

At the beginning of the year, I reported on the Whistle 2 from Babumas Devices. A fascinating M4L Synthesizer that combines my favorite synthesis, physical modeling, and granular. It can create sounds reminiscent of granulated chimes or pearl streams. Very organic and unique,

Today, a new M4L synth called Whistle popped up in my news stream. Not from Babuma Devices but from Rainbow Circuit.  A little confusing. Through research, I can confirm that both devices come from the same developer Takuma Matsui. 

Rainbow Circuit Whistle

Rainbow Circuit Whistle

Important: Whistle is the latest version here, not Whistle 2.

According to Takuma, it offers a brand-new code completely implemented in gen~. The main difference is the granular engine, whose construction is similar to emittion control. It also has a much more robust tuning and inharmonic timbre shaping. 

Rainbow Circuit has also opted for a single-page interface. Different look, but the concept stays the same. Whistle melts both physical modeling and granular synthesis in a unique M4L synth.

The physical modeling part uses two parts: an exciter and a resonator. The exciter uses again granulated audio samples. From here, it goes into a banded waveguide-based resonator or the body that consists of a series delay lines and tuned bandpass filters.

You can shape the resonator in different directions with the spraying and window parameters. Plus, you can modify each bandpass filter in detail: narrow or widen it or tune it to a harmonic ratio or a fixed frequency. This kind of physical modeling fits well for recreating elastic solids like vibraphone or marimba timbres.

New is also a simple modulation section with a function generator (envelope/LFO) with which you can animate any of Whistle’s parameters. 

First Impression

It’s unusual that there is a successor so quickly. Upon request, there is a free upgrade for Whistle 2 users. So a good move. Codes will be sent to the same emails, confirmed Rainbow Circuit. All in all, it is a nice further development. 

Rainbow Circuit Whistle is available now for $24 and requires Ableton Live Suite or Live Standard with an M4L license. According to the developer, Whistle 2 users get a free upgrade. 

More information here: Rainbow Circuit 

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