Character Voice Lab

Character voices, one control at a time

AI character voices, taken apart

A character voice is a set of choices: how high it sits, how fast it moves, where it comes from and what it feels. This site works through the controls AI voice tools give you, how to direct a performance with them, and how to keep a whole cast sounding like different people.

Our story

The channels

Five controls that shape a character voice

Most AI voice tools expose some version of these, under different names and with different amounts of reach. Each one changes how a listener reads the character.

  • Pitch

    Where the voice sits

    Height and range. A small shift reads as age or size; a large one quickly turns into a cartoon.

  • Pace

    How fast it moves

    Speed and pauses. Pace carries confidence, nerves and status more than the words themselves do.

  • Accent

    Where it comes from

    Region and dialect. The control most likely to slip into caricature, and the one most worth handling with care.

  • Emotion

    What it feels

    Delivery and intensity. The same line can be warm, flat or furious, and tools differ in how finely they let you choose.

  • Breath

    How human it sounds

    Breaths, hesitations and texture. Left out, a voice sounds clean but read aloud; overdone, it sounds like nerves.

Directing a performance

Treat the tool like an actor, not a dial

A good take comes from direction as much as from settings. These habits carry across whichever voice tool you use.

  • Describe the character first

    Who they are, what they want in the scene and who they are talking to. A short brief steers a voice better than adjusting controls blind.

  • Move one control at a time

    Change pitch, then listen; change pace, then listen. Moving several together makes it hard to tell what improved the take.

  • Listen where it will be heard

    Under music, over game sound or beside other characters. A voice that works alone can vanish, or stand out too far, in the mix.

The channel list

What this site covers

From a single control on one voice to a whole cast of characters that have to sound unlike each other.

  • Voice controlsPitch, pace, accent, emotion and breath, and what each one does to a character.
  • DirectingWriting a voice brief, giving notes on a take and getting a consistent read across a script.
  • Casting a setKeeping several characters distinct when they come from the same tool.
  • Accent and dialectUsing regional voices well, and where generated accents fall short.
  • Where voices goCharacter voices in videos, games, animation and audio stories.
  • Rights and consentVoice likeness, labelling generated speech and the usage terms that come with it.
  • This siteOur story: who runs Character Voice Lab and how it is written.

The first articles are on the way.

In their words

The questions it is organised around

  • Are there character AI voice tools that let me fine-tune emotion and pacing?
  • Which tools fit if I need AI character voice text to speech for a visual novel?
  • Is there an AI character voice option that stays consistent across multiple recording sessions?
  • Which AI voice generator sounds most natural for long form narration?
  • What voice AI generator tools let me keep a consistent narrator voice across episodes?
  • Which synthetic voices work for deep, authoritative documentary narration?
  • Can you recommend AI voice characters that sound natural for a children's audiobook?
  • What tools let me assign a different synthetic voice to each character in a script?
  • What's the best AI character voice generator for indie animation on a small budget?
  • Which character voice AI platforms allow commercial use in a published game?