Techno-Speech’s AI singing voice software VoiSona Song has been free for a while with the Japanese voice library “Chis-A,” and as of April 24, 2026 the company has also dropped the price of the previously paid English “Chis-A [tʃíːseɪ]” voice library to zero. Combined with the existing free Japanese voice and the cross-lingual support introduced in voice library version 2.2.0, that means you can now have a single voice sing in Japanese, English and Mandarin Chinese without paying anything.
What is VoiSona Song?
VoiSona Song is an AI singing voice synthesizer that aims for natural, human-sounding vocal lines from very simple input — type in notes and lyrics on a piano roll and it generates the take. It runs as a standalone app and as a VSTi/AU plugin on Windows, macOS, iOS and iPadOS, and exposes free-hand controls for pitch, volume, vibrato, voice quality and huskiness so the output can be edited rather than just rendered. The default voice library “Chis-A” has a gender-neutral character that fits a wide range of styles.
Key Features
- AI-based, natural-sounding singing voice synthesis
- Multi-platform: Windows, macOS, iOS and iPadOS
- VSTi / AU plugin support for seamless DAW integration
- Piano-roll note + lyric input with free-hand pitch and tone control
- Cross-lingual singing in Japanese, English and Chinese (with Chis-A v2.2.0+)
- Default “Chis-A” voice library bundled — gender-neutral, expressive
- Standalone mode for use without a DAW
- Imports MusicXML and MIDI files
English Voice Library Chis-A [tʃíːseɪ] Now Free (April 24, 2026)
On April 24, 2026, Techno-Speech announced that the previously paid English Chis-A [tʃíːseɪ] voice library is now completely free. The library defaults to English but supports cross-lingual singing in Japanese and Mandarin Chinese (with voice library v2.2.0 or later), so a single voice can sing all three languages — opening up multi-language choruses and tracks aimed at international listeners. Users who already paid for a perpetual license will receive an exchange coupon by email starting April 27, 2026 under the “Chis-A [tʃíːseɪ] License Exchange Campaign.”
Chis-A [tʃíːseɪ] Specs
- Default language: English (cross-lingual JA/CN with voice library v2.2.0+)
- Recommended range: F3 – D5
- Recommended tempo: 70 – 145 BPM
- Price: completely free as of April 24, 2026
How to Download
Create a free account on the official VoiSona site and log in to download both the VoiSona Song application and the additional Chis-A [tʃíːseɪ] English voice library at no cost.
Final Thoughts
VoiSona Song was already a strong free option for Japanese AI vocal synthesis, and adding cross-lingual English and Chinese to the same voice without a paywall is a notable jump. For producers writing for non-Japanese listeners or making multi-language choirs, this removes the main reason to look elsewhere. It’s worth picking up the moment it’s available.