First appears in "Marco and the King" after several straight days of partying with King Butterfly at Butterfly Castle. After waking from being unconscious, she asks the king where her pet monkey is, unaware that he tossed it out the window a few moments earlier.
You have not created anything with this voice yet.
How it works
Four steps, no audio skills needed — the whole thing usually takes under a minute.
Paste a YouTube link or upload an mp3 or wav from your computer. Anything up to ten minutes long works.
Vocalize pulls the lead vocal away from the instrumental, so only the singing gets converted — the music underneath stays untouched.
The Fool Duke AI voice model replaces the original vocal, and the result is mixed back over the instrumental automatically.
Play the finished cover right on this page. If something sounds off, tweak the pitch or reverb in the advanced settings and run it again.
Text to speech
You don't need a song to use this voice. The text-to-speech mode reads any script you give it — type it out, hit Generate, and you'll hear it back in seconds.
Pick the Text-to-Speech tab at the top of this page.
Type or paste your text — every language is supported, up to 4,096 characters at a time.
Press Generate, listen back, and save the audio once you're happy with the read.
Use cases
From full song covers to narration, here's what people make with the Fool Duke voice.
Re-record any track with Fool Duke on lead vocals, straight from a YouTube link or an audio file.
Turn scripts, posts or stories into speech read aloud in the Fool Duke voice.
Give characters, sketches and edits a voice without booking a recording session.
Quick clips for TikTok, YouTube or Discord — typed in seconds, shared just as fast.
Pro tips
Choose songs with a clear lead vocal. Dense mixes with lots of harmonies are harder to separate and convert.
If the vocal lands too high or too low, shift the pitch 12 semitones up or down in the advanced settings — the usual fix when converting between male and female voices.
Already have an isolated vocal? Turn on "input is already an a cappella" — it's faster and avoids separation artifacts.
Leave reverb on for sung covers; turn it off for spoken word so the voice stays dry and upfront.
Convert one chorus before the whole song. It saves credits while you dial in the settings.
FAQ
Frequently Asked Questions
Community
What creators are saying about Fool Duke
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