Yamaha VOCALOID6 singing synthesizer: features and spec-based rating

Yamaha’s VOCALOID6 is the latest version of Yamaha’s singing synthesizer. VOCALOID:AI, which uses AI, makes a natural singing voice, and it has Vocalo Changer, which imports your own singing style, and a feature for making harmonies.

A singing synthesizer is a tool that sings for you when you enter lyrics and a melody on a computer.

In this article we compare VOCALOID6 with 7 singing synthesizers and rate how well it serves its purpose on three criteria. The basis is official manufacturer information.

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Summary

Among the 7 singing synthesizers, VOCALOID6 is rank A. The ranks run S, A, B and C, and A is second from the top. Averaging the scores for the three criteria (out of 5) gives 4.0.

Strengths

• AI features (5 points): besides AI singing, it has features that support it.
• Where you can use it (4 points): you can use it on many kinds of computers and environments.

Who it suits: people who want to craft how a voice sings in detail with the standard vocal-synth software.

Main features of VOCALOID6

VOCALOID:AI uses AI

VOCALOID6 is Yamaha’s singing synthesizer, and VOCALOID:AI, which uses AI technology, can make it sing with a more natural voice. There are tools that let you adjust how it sings, as if giving instructions to a vocalist, such as accent, vibrato and hesitation.

Japanese, English and Chinese in one voice

A single voice bank can sing lyrics that mix Japanese, English and Chinese. Voice banks from VOCALOID3 onward can also be used, and voice banks for VOCALOID5 (Amy, Chris, Kaori and Ken) come with it.

VOCALO CHANGER imports your own singing

VOCALO CHANGER is a feature that imports your own singing and reproduces how you sang it with a voice. Without entering things in detail, you can make an expression close to your own singing style.

Where it is useful

• Making a vocal-synth song and having a VOCALOID:AI voice sing it
• Using VOCALO CHANGER to copy your own singing style to a voice
• Having one voice sing lyrics that mix Japanese and English

Rating by criterion

AI features: 5 / 5

We look at AI singing and the features that support it (remaking how it sings, importing your own voice, choirs and so on).

Besides AI singing (VOCALOID:AI), it has VOCALO CHANGER, which imports your own singing and reproduces how you sang, and new tools that let you direct accent, vibrato and more.

Languages it can sing: 3 / 5

We look at the number of languages it can sing.

A single voice can sing a mix of Japanese, English and Chinese.

Where you can use it: 4 / 5

We look at how wide the range of environments is, such as Windows, Mac, phones and DAW plug-ins.

It works on Windows 11 and macOS 14 or later, and besides the standalone app it can be used inside a DAW as a VST3 and AU plug-in (ARA2 supported).

How we score (Singing synthesizers)

Criterion	Basis	5 pt	4 pt	3 pt	2 pt	1 pt
AI features	AI singing and the features that support it (regenerating how it sings, importing your own voice or singing style, choirs and so on)	AI singing plus two or more support features	AI singing plus one support feature	AI singing	—	No mention of AI
Languages it can sing	Number of languages it can sing (as stated officially)	6 or more languages	4 to 5 languages	2 to 3 languages	Japanese only	—
Where you can use it	Which of Windows, Mac, phones and tablets, and DAW plug-ins it supports	All four	Three	Two	One	—

Each criterion is scored from 1 to 5 on how well the product serves one goal: making a singing voice from a melody and lyrics. Scores follow the conditions in the table above. They are criteria chosen to match common searches about AI, singing in English, and whether it works on a Mac or a phone. The basis is official manufacturer information (official sites and manuals) and the Plugin Boutique product page. How natural the voice sounds has not been compared by ear, so it is not scored. Price and the number of voices are not part of the score. Features that cannot be confirmed from the manufacturer's or a retailer's description are scored as if absent.

VOCALOID6 screens and images

VOCALOID6 system requirements and getting started

Operating system	Windows 11 (22H2 or later) / Mac (macOS 14 or later)
Plug-in formats	VST3, AU (ARA2 supported)
Standalone	Yes
Trial	A trial with all features is available

Checked on the manufacturer’s official pages on September 27, 2026.

Compared with other singing synthesizers

Click a heading to sort. On a phone, the table scrolls sideways.

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