UVI introduces HX-20 Software Synth, Inspired by classic Korg MS-20


UVI has introduced HX-20, a new virtual instrument, inspired by the classic Korg MS-20 synth from the ’70s.

They’re also bringing back gratuitously sexy 3D renderings of virtual instruments, to the point that you might think, on first view of their intro video, that HX-20 is a hunk of beefy analog goodness. The virtual patch cables have shadows.

HX-20 is the debut release in UVI’s new HX Series, which they say builds on their history in hardware sampling and physical modeling. HX-20 is based on deep sampling of the original hardware, paired with two new layers of hardware-based wavetables, and physically-modeled filters to create “a powerful and compelling sonic tool with incredible character”.

HX-20 features 2 hardware-based wavetable oscillators and a sample-based oscillator, feeding a pair of analog-modeled filters, all with ADSR envelopes and numerous modulation points. Other features include a powerful arpeggiator/phraser, macros and studio effects.

HX-20 Overview:

HX-20 Audio Demos:

HX-20 is available with an intro price $49.00 till December 11, 2023 (normally $79.00).

Free Make Noise Spectraphon Firmware Update Now Available, ‘SpectraNoise’

Make Noise has released a free firmware update for the Spectraphon Eurorack module, SpectraNoise.


SpectraNoise adds the following features:

  • Two new Oscillator modes: Noise, and Chaos
  • In Noise mode, the Even and Odd outputs contain a pair of sine waves (use the Input attenuator to detune them up to an octave from each other). The Partials control sets the width of noise sidebands around the sine frequency. The Slide and Focus controls set the frequencies of a low-pass and high-pass filter, respectively, for this modulating noise, further shaping the sidebands.
  • In Chaos mode, the two sine oscillators are each paired with a second sine whose harmonic ratio to the core is set by the Focus control. (As with SAO and Noise you can use the Input attenuator to detune the two sines by up to an octave.) Partials adds audio rate modulation of one sine by the other, and Slide adds multiple chaotic feedback paths to this modulation.
  • Low Frequency behavior added to SAO, Noise, and Chaos. To switch a Side into low frequency, hold Shift and press Array (this is the same process used for Array creation in SAM).
  • All Mode options reset to factory settings when powering on while holding SHIFT A & SHIFT B.
  • Bug fixes

SpectraNoise is available now as a free download.

Plogue’s chipsynth C64 features ‘The Deepest SID Sound Chip Emulation Ever’


Plogue has introduced chipsynth C64, a new virtual instrument for macOS + Windows, described as “The new reference for SID emulation”.

Plogue says that chipsynth C64 is designed to be “the deepest SID sound chip emulation ever”, and the new soft synth is informed by years of research.

The MOS Technology 6581/8580 SID (Sound Interface Device) is the built-in programmable sound generator chip used in the Commodore 64 and other Commodore computers of the era.

The SID contains 3 oscillators, each with a volume envelope, which can either be used as-is, or sent through the filter. SID music typically use one oscillator per sound. This allows for 3 notes of polyphony, but the single filter has to be shared between tracks, requiring the use of ad hoc manual allocation.

Plogue chipsynth C64 removes the need for this complex allocation process, as each voice has access to its own complete emulated core, allowing for rich layered sounds. In addition to this, classic chorus, Ambience reverb and stereo delay effects can be applied.

What they have to say about chipsynth C64:

“The fruit of years of laborious research, it bears our legendary desire for emulation perfection. Real chips in the field vary wildly in sound – every slight deviation in silicon composition radically changes the character of the filter – and we went all out on capturing this.

We reproduced no less than 32 different SID chips in excruciating detail, covering the full rainbow spectrum of SIDs: every revision of 6581 and 8580 from R1 to R5, every tone from warm to bright to clean to distorted and gnarly.

This is a full, REAL emulator that can actually play original songs natively and accurately, with a full-featured SID file player capable of playing even exotic songs with multiple-SID setups, sample playback and hard filter overdrive.

They said it was all bleep bloops. But it’s GOOD bleep and bloops! And we couldn’t be happier. And, as always, no samples are used, it’s all true emulation!”

chipsynth C64 Audio Demos:

chipsynth C64 is available now for $49.95