Alto AI voices

Try Morphic

Browse AI alto voices from rich contraltos to soft low registers, or build your own with the alto voice generator, then lip sync any line so your narrator speaks it on screen.

Alto voices for audiobook narration, animated leads, and brand reads

Vera

A rich, velvety contralto, deep and rounded, warm in the lowest register

Edit prompt

Dahlia

A smoky, low lounge alto, smooth and unhurried, textured with warmth

Edit prompt

Corin

A full, even low female narrator, grounded and steady, easy to listen to for hours

Edit prompt

Esme

A soft, rounded low register, gentle and close, intimate rather than booming

Edit prompt

Raya

A strong, resonant stage alto, bold and projecting, carrying the lowest notes

Edit prompt

Maive

A husky, textured low storyteller, warm and lived-in, a little gravel in the tone

Edit prompt

Design your alto voice

Mix and match the traits below. Your prompt builds as you go.

Archetype
Depth
Texture
Mood

A bottomless, gravelly, menacing overlord alto voice

Generate

Turn an alto voice into a talking character

Most voice tools stop at an audio file. Morphic maps the read onto a face so your narrator speaks the line on screen, mouth and timing matched. That takes you from a written line to a talking alto clip with the low register intact.

Try lip sync
Expressive woman in velvety burgundy low-key cinematic portrait

Low-register voices for audiobook narration, animated leads, and brand reads

Give every narrator, stage lead, and storyteller its own voice. Browse alto archetypes from a bold resonant stage alto to a soft gentle low register, each directed from a prompt. Drop them into an audiobook, an animated lead role, or a warm brand read where the lower range carries the tone.

Dim lounge stage with vintage microphone and velvet curtain

Alto voice text to speech for narration and ad reads

Paste a script and turn it into a low, warm read in seconds, no recording booth. Morphic converts written copy into a rich alto delivery for long-form narration, explainers, and ad reads, with pace, pitch, and warmth you direct in plain English.

Deep crimson and gold glowing waveform in darkness

An alto voice generator you direct in plain English

Describe the low register you want, name the warmth, texture, and resonance, and the generator builds the read. Re-voice the same line as a smokier lounge alto or a brighter stage alto anytime by editing the prompt. Build a whole range of low female voices from one workspace.

Hands at studio desk with plum amber audio controls

More voice styles

BaritoneArticulateAuthenticAppealingAttractiveBelievableAmusingAngry

Simple pricing

Get started for free today, with the option to upgrade or cancel anytime.

Basic

$19/ month
billed as $0 per year

2400 monthly credits

1 user only

All models

Workflows

Standard

$24/ month
billed as $0 per year

3625 monthly credits

1 user only

All models

Workflows

Pro

$45/ month
billed as $0 per year

6350 shared monthly credits

1 user

+ up to 4 more at extra cost

All models

Workflows

Max

$170/ month
billed as $0 per year

24650 shared monthly credits

1 user

+ up to 9 more at extra cost

All models

Workflows

Enterprise

For higher limits

Custom

pricing and billing terms

High-volume credits
Custom seat limits
All models
Workflows
Pricing Gradient

Free

For playing around

$0

forever free

Up to 20 credits
1 user only
Limited models
Workflows
Compare plan details

FAQs

What is an AI alto voice?
An AI alto voice is a generated performance pitched in the lower female register, rich and warm rather than bright and high. You describe the tone, such as a velvety contralto or a smoky lounge alto, then direct pitch, texture, and pace so the read sits comfortably low. In Morphic the same line can be re-voiced in a different alto texture without re-recording anything.
How do I make a custom alto voice in Morphic?
Open the speech tool, paste your line, and describe the low register in plain English. Name the warmth, then add cues for depth, texture, and pace so the read stays in the alto range. Generate, listen, and adjust the prompt until the tone lands. The compare tool on this page composes that direction for you and carries it straight into Studio.
Can I turn an alto voice into a talking character?
Yes. After you render the voice, the lip sync tool maps the audio onto a face so the mouth and timing match the read. That takes you from a written line to a talking narrator or character clip in one workflow, which is the step a voice-only generator cannot complete.
Can I use these voices commercially?
Yes, voices generated on paid Morphic plans can be used in commercial games, films, ads, and animated content. Review the Morphic terms for full licensing detail before you publish.
How many different alto voices can I create?
There is no fixed roster. Because each voice is directed from a prompt, you can create as many distinct low-register voices as your project needs and revise any of them by editing the direction. Build a whole range of altos from a single workspace.
What languages and accents are supported?
The Morphic speech tool supports English plus a growing set of languages and accents. For an alto read you can specify an accent or a particular warm, low cadence in the prompt to match the delivery you have in mind.