Voice Studio is where you work with voices. Write a line, choose who says it, and hear it — then keep the voices you like, or clone one of your own from a short recording and use it across your Pearls.
Open it from Voice Studio in the left sidebar. The page has two parts: the draft in the middle, where you write and listen, and the voice library on the right, where you pick a voice and adjust it.
A voice is a speaker in a language, so choosing a voice already chooses the language it speaks. That’s why there is no separate language selector on this screen.
Voice Studio requires the TTS permission (Access Voice Studio - clone voices and generate speech). See Users & Workspaces to manage permissions.
Generating speech
1
Choose a voice
Pick a voice in the library on the right. See The voice library for searching, filtering, and managing voices.
2
Write what the voice should say
Type into the draft. A single take can be up to 4,000 characters. Past that limit, the page tells you by how much and the Generate Speech button stays disabled until you trim it.On an empty draft, Start with one of these offers a few ready-made lines: click one to use it. Once the draft has text, the Example line button fills it with a line written to show the selected voice off: hesitations, a breath, a number said out loud. Press it again for a different one.Type 
@ anywhere in your text to insert a speech marker — a short tag the model reads as an instruction rather than as words. See Speech markers below.3
Generate and listen
Click Generate Speech. Playback starts as soon as the first audio is ready — you don’t wait for the whole take to finish generating, which matters for longer texts.When the take lands, a card shows the text that was spoken, the voice that spoke it, and a player. From there you can:
- Play, pause and scrub through the take.
- Download the audio.
- Minimize the card to a single line to get your draft back in full view, and Expand it again.
Adjusting a voice
Click a voice in the library to open its panel. It replaces the list until you click the back button at the top of the panel.
You can also rename a voice from its panel.
Speech markers
Markers are tags the speech model reads as instructions, not as words. Type@ in your draft to open the marker menu at your cursor, then pick one.
Speaking to a man or a woman
Hebrew writes the same sentence differently depending on who is being addressed: the second person is inflected, so one written line is two different spoken ones. When you select a Hebrew voice, a Speaking to control appears under your draft. Set it to the gender of the person being spoken to.This is the listener, not the speaker. The voice’s own gender is a property of the voice and is never something you set here. A female voice addressing a man is an ordinary call.
The voice library
The library on the right of the page is where you browse, filter and manage the voices available to your account.
Explore
Every voice available to you, for choosing: the NLPearl voices, your own clones, and voices other accounts have published.
My voices
Your account’s own list, for managing. Your Pearls can be set to these voices, and their speaking speed is saved.
Searching and filtering
Search by name, accent or tag, and narrow the list with the filters:- Language
- Accent — appears once you’ve picked a language, and only for languages that have accent variants.
- Gender
- Yours — shows only your own clones. It appears when the list mixes your voices with others.
Reading a row
Each row shows the language flag, a gender mark, the voice’s name, and its accent and tags. Some rows also carry a label:
Click the play button on a row to hear the voice without leaving the list. A voice you cloned plays back the sample built when you created it, so what you hear here is what you approved.
Playing a voice doesn’t generate a new take — the clip is rendered once and reused, so every play after the first is instant.
Managing a voice
The ⋯ button on a row opens its menu. The actions offered depend on the tab and on whose voice it is:
Cloning a voice
You can build a voice from a short recording of someone speaking, then use it like any other voice on the platform. Click Clone a voice in the voice library. Cloning takes two steps: Recording, then Details.1
Provide one recording
Drag an audio file onto the popup, click Browse files, or click Record audio to record straight from your microphone.
A voice is built from a single recording. Dropping a second file replaces the first rather than adding to it.
2
Describe the speaker and confirm your permission
Still on the Recording step, describe the speaker:
Then tick the box confirming that the voice in the recording is your own, or that you hold documented written permission from the person whose voice it is, and that you authorize NLPearl to create a synthetic replica of that voice.
3
Hear the sample and name the voice
On the Details step, the Sample plays a line in the cloned voice, so you know what you’re keeping. This is also the clip the library will play for this voice. If it doesn’t sound right, build it again, or go Back to change the recording.Give the voice a Name (2 to 25 characters), and optionally up to 3 Tags to make it easier to find — for example 
warm, support, news.4
Save
Click Save to my voices. The voice appears in My voices right away, selected, with its panel open, ready to generate speech.
If a recording can’t be read, try another file or record it again. After many attempts in a short time, cloning pauses for a little while.
Publishing a voice
Publishing puts one of your voices into the shared library, where every account on the platform can use it. Publishing is offered from the voice’s row menu on the Explore tab, and only while the voice is still private. A confirmation asks you to approve it. Once published, the option is gone.Using your voices in a Pearl
An agent’s Voice dropdown lists the platform’s voices and the voices in your My voices list.1
Add the voice to your list
Clone it, or add it from Explore.
2
Open your Pearl's settings
Go to Pearl Settings → Agent Names, Languages & Voices.
3
Pick it for an agent
Open the agent’s Voice dropdown and select it. For the languages Voice Studio supports, the dropdown also offers Open Voice Studio at the bottom of the list, which opens the studio in a new tab so you can clone or audition a voice without losing your place in the form.
The agent uses the speaking speed saved on that voice in My voices. Change it from the voice’s panel in Voice Studio.
Supported languages
Voice Studio generates speech in the following languages:This is the list of languages the speech model currently serves, which is narrower than the full set of languages a Pearl can speak. See Voices and Languages for everything the platform supports.
Your My voices list is empty until you clone a voice or add one from Explore.
Voices and Languages
Configure agents, languages and voices for a Pearl.
Pearl Settings
Everything you can configure on a Pearl, including its agents.