Alastor AI voice generator & voice changer
Speak as Alastor, the charismatic Radio Demon overlord of Hazbin Hotel, with a smooth, theatrical 1930s radio-announcer delivery. Type text and hear it in Alastor's voice (text to speech), record or upload your own voice to change it, or make a song cover. Free, no signup.
- 1Pick a voice
- 2Record, upload a file or song, or type text
- 3Listen, download and share
Auto pitch moves your voice into Alastor's range. If it sounds too high or low, nudge the slider (12 = one octave).
Pick a voice
About the Alastor voice
Alastor is the charismatic and unsettling Radio Demon, one of the most powerful overlords in Hell and a standout character of the animated series Hazbin Hotel. Always immaculately dressed and wearing a wide, unwavering smile, he treats every encounter as a performance. He is known for his old-time radio persona, his showman's flair, and a politeness that makes him all the more menacing.
The voice is smooth, theatrical and unmistakably vintage, in the style of a 1930s radio announcer. Expect a confident, mid-range delivery with a warm, polished tone, a crisp transatlantic-style cadence, and a playful sense of drama. The pace is unhurried and deliberate, with sudden bursts of energy, elongated words and gleeful emphasis that make even simple lines sound like a broadcast to an eager audience.
To get the best results on voicechange.io, you can record or upload your own speech, type text to hear it spoken in Alastor's voice, or create a song cover. The pitch is matched to the voice automatically, so you can simply focus on your performance. For this voice, speak with energy and clear enunciation, exaggerate your rhythm, and lean into big, showy phrasing as if you were hosting a live show. Short, expressive lines often sound the most convincing.
Voice details
| Category | Cartoons & TV |
|---|---|
| Model type | RVC voice conversion model (fan-made) |
| Centre pitch | About 120 Hz, a low voice |
| Works with | Recordings, uploads, text to speech and song covers |
| Last updated | November 6, 2026 |
Tips for the best Alastor result
This model is centred around 120 Hz. With auto pitch on, a typical deeper voice (around 120 Hz) isn't shifted, since it already fits, and a typical higher voice (around 210 Hz) is shifted about 10 semitones down. Gaps under 4 semitones are left alone, and shifts stop at one octave. If the result sounds strained, nudge the slider one or two steps back toward your own voice; for song covers, keep it at 0, +12 or −12 so the vocal stays in key. How pitch works.
- Record in a quiet room with no music in the background; noise is the main cause of robotic-sounding results.
- Perform the line the way Alastor would say it. The model copies your timing and emotion, only the voice changes.
- For song covers, pick a track with one clear lead vocal and little reverb.
This is a fan-made AI voice model. voicechange.io is not affiliated with or endorsed by Alastor, the voice actors or the rights holders. Please label shared results as AI and don't use them to mislead anyone. Rights holders can request removal on the contact page.
Alastor voice questions
Is the Alastor AI voice free?
Yes. You can use the Alastor voice on voicechange.io for free with no account: type text, change a recording or make a song cover. Free downloads keep up to 3 minutes per clip.
Can I use the Alastor voice live on Discord?
Not this model: website voices convert recordings and text, which takes 10 to 60 seconds. For a live voice in Discord, games or Zoom, use the free VoiceChange desktop app, which runs its own voices in real time.
How do I make my voice sound more like Alastor?
The model is centred around 120 Hz, a low voice. Leave auto pitch on so your recording is shifted into that range, record in a quiet room, and copy how Alastor speaks: the model keeps your timing and emotion and changes only the voice.
Is this the official Alastor voice?
No. It is a fan-made AI voice model and is not affiliated with or endorsed by Alastor, the voice actors or the rights holders. Please label anything you share as AI.
Want to talk in a new voice live? Try the male voice changer in your browser, or the free desktop app for Discord and games.