voc-one

voc-one free software-synthesizer by Simple-Media

voc-one is a free software synthesizer developed by Simple-Media. Available format(s): VST for Windows.

voc-one uses a simple analogue synthesizer to simulate the glottal pulse or pulses and then uses a powerful, morphable formant filter bank to give a realistic, warm and flexible vocal quality.

Features:

  • Full control over each stage of the vocal synthesis.
  • Morphable formant filter with 11 recognized phonetic vowel spectra.
  • Morphing between vowels sounds subtle and natural.
  • Control over the register of the formant filter and the emphasis to give a much greater range of possible vocal types.
  • 8 presets plus room for 8 more.
  • Built in high quality reverb (UDReverb based on freeverb).
  • Lots of potential for experimentation.

NOTE: CPU usage is quite high and a minimum 1.2GHz processor is recommended, although it will work (if the playing is not too complex) on an 800MHz processor.

Made with SynthEdit

http://www.simple-media.co.uk/vsti.htm

Syng2

Syng2 free software-synthesizer by xoxos

Syng2 is a free software synthesizer developed by xoxos. Available format(s): VST for Windows.

Syng2 is a voice synthesizer which uses four band-pass filters to produce formants in any spectrally rich input signal, or using an internal oscillator. The phoneme can be selected on a second MIDI channel for precise timing of speech, or preset words can be triggered on a third MIDI channel.

Syng2 was designed as an intelligible, low-CPU voice engine for Breathcube 2. The articulation is intended to be more natural than other ‘robot voices’ using this method, with plosives slightly emphasised to be heard with music.

Made with SynthEdit

https://www.kvraudio.com/developer/xoxos

DoFi

DoFi free software-synthesizer by anosci

DoFi is a free software synthesizer developed by anosci. Available format(s): VST for Windows.

DoFi is a toy for making formanty sounds.

It has two different modes, and two dials to automate the vowel produced.

It includes the same 23 waveforms that appear in F2FM and STriFE, though few of them really mesh with the formant effect.

Think of this as a variation on Delay Lama.

Made with FlowStone

http://anosci.net/vsts.html

AquesTone

AquesTone free software-synthesizer by AQUEST

AquesTone is a free software synthesizer developed by AQUEST. Available format(s): VST for Windows.

AquesTone is a vocal synthesizer VST instrument.

Features:

  • Real-time generation of a singing voice from MIDI data and a lyrics file.
  • Lyrics file can be edited with a text editor (uses ASCII or Shift JIS character code).
  • Uses Japanese full phoneme set.
  • Low CPU usage.

http://www.a-quest.com/

AquesTone 2

AquesTone 2 free software-synthesizer by AQUEST

AquesTone 2 is a free software synthesizer developed by AQUEST. Available format(s): VST for Windows, macOS.

AquesTone 2 is a vocal synthesizer VST instrument.

Features:

  • Real-time generation of a singing voice from MIDI data and a lyrics file.
  • Lyrics file can be edited with a text editor (uses ASCII or Shift JIS character code).
  • Uses Japanese full phoneme set.
  • Low CPU usage.

http://www.a-quest.com/