VOICE AVATAR Nanakoe Nina

The complete Nanakoe Nina AI voice-conversion web service closed on March 31, 2022.

Voice generation & dubbing · May 2021 – 31 Mar 2022 · DeNA

The record

DeNA’s browser-based AI voice-conversion service for recording audio and turning it into the character Nanakoe Nina’s voice.

Verification notes

Shutdown: The original June 2022 DeNA engineering article explicitly says the VOICE AVATAR 七声ニーナ voice-conversion web service closed on March 31, 2022. The original introduction links the independently named nanakoe-nina.dena.ai service and explains its deep-learning voice task. This is the complete record-then-convert web service, not a separately listed voice model; later real-time voice research and other DeNA services continue outside scope. The 2023 DeNA release also calls the earlier service ended. No cutoff hour/time zone or first closure-notice day was established. Closure source
Dates checked: Verified 24 Oct 2026
AI functionality: AI functionality source
Launch: DeNA’s original introduction dates the service release to May 2021; no first availability day is asserted from the URL path or article timestamp.
Location: Japan · Tokyo. DeNA’s own November 2023 release names the operator and its Shibuya, Tokyo headquarters. This is an operator-headquarters city proxy, not the service’s server region or office address. GeoNames Tokyo city coordinates are rounded to two decimals. Location source · Coordinate source