Yumemi Nemu VOCALOID4

This is an article about the Yumemi Nemu software for the VOCALOID4 engine.



Originally, four more vocals were planned after Tone Rion as part of the Vocaloidol group. It is unclear whether or not Nemu is one of the originally planned vocals.


On December 28, 2016, Yumemi Nemu, along with an update for Tone Rion, were announced for the VOCALOID4 engine and were expected to release on February 16, 2017. A starter pack for Nemu would be made available.[1] It was also announced that Nemu Yumemi was the voice provider for both characters.[2]

Product InformationEdit



あのね…実はわたし、夢眠ねむなんだ… (Ano ne... Jitsu wa Watashi, Yumemi Nemu Nanda...) YouTube



Voicebank LibrariesEdit

Product Information
  Tempo: 60 ~ 140BPM  Range: G#2 ~ F4
  Trial/Demo Vers?: No  Starter Available?: Yes  App vers.?: Yes
Package details
Though both Tone Rion and Nemu share the same provider, the Nemu product is intended to be a faithful recreation of the provider in contrast to Tone Rion and was recorded in her normal talking voice.

Also included is over 130 recordings of the provider.

Vocal traits as noted:
  • Produces more realistic results than Tone Rion.
  • She has a larger vocal range than Tone Rion.
  • Nemu's vocal sounds more mature than Tone Rion's vocal and is intended to be more adult-like.
  • The vocal has more power in its tone than Tone Rion.
Cross-Synthesis notes:
  • Yumemi Nemu and Tone Rion V4 can use XSY with each other.
    • In total two packages offer the equivalent together of 2 additional voicebanks achievable via XSY. The total tone variation offered by the package comes to a theoretical 4 voicebanks in total.
Voicebank sample

Yumemi Nemu VOCALOID4

Nemu Yumemi


  1. VOCALOID NET announcement article


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