Kvraudio iconKvraudioSep 19, 2026 ~1 min source read

blepfx releases spectra - spectral morphing plugin (VST3, AU & CLAP)

YouTube.com/watch?v=-cg2v_MuFe4 <a href="https://www.kvraudio.com/news/blepfx-releases-spectra---spectral-morphing-plugin-vst3-au-and-clap-68653?utm_source=kvrnewsfeed&utm_medium=rssfeed&utm_campa... blepfx has announced the release of spectra, a new spectral morphing/vocoder/formant shifter plugin.

blepfx releases spectra - spectral morphing plugin (VST3, AU & CLAP)

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blepfx has announced the release of spectra, a new spectral morphing/vocoder/formant shifter plugin.

Includes a formant shifter (range of 4 octaves), a tilt filter, envelope freeze, "smooth" and "smear" controls that allow for precise envelope/harmonic separation in frequency and time.

spectra is a spectral morphing/envelope transfer engine that lets you freely merge and mix two audio signals in interesting and unique ways.

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The useful part

blepfx has announced the release of spectra, a new spectral morphing/vocoder/formant shifter plugin. spectra is a spectral morphing/envelope transfer engine that lets you freely merge and mix two audio signals in interesting and unique ways. It works by splitting the main and sidechain signals into envelope, a rough outline of the spectrum, and harmonics, the fine, spectrally flat details of the sound.

How it works

  • Includes a formant shifter (range of 4 octaves), a tilt filter, envelope freeze, "smooth" and "smear" controls that allow for precise envelope/harmonic separation in frequency and time.
  • YouTube.com/watch?v=-cg2v_MuFe4 <a href="https://www.kvraudio.com/news/blepfx-releases-spectra---spectral-morphing-plugin-vst3-au-and-clap-68653?utm_source=kvrnewsfeed&utm_medium=rssfeed&utm_campa...
  • a bank of narrow bandpass filters to extract and apply the envelopes.
  • Linear: basic FFT-based envelope transfer, clean but introduces some pre-ringing.
  • Hilbert: an improved version of Linear that uses the Hilbert transform to reduce pre-ringing.

What to take from it

It is less precise but has a unique character, and virtually no pre-ringing. Pricing & Availability spectra is available as a VST3, AU and CLAP plugin for macOS, Windows and Linux for $25.

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