Voice

A character's Voice defines how they sound like when speaking.

Inworld Studio has a variety of AI voices to choose from to fit your character, including tools to adjust and modulate these voices. This guide covers what these voice controls do and how to use them.

The Voice Tools

The Inworld Studio Voice tools consist of three main sections, Voice Attributes, Select Voice, and Customize Voice.

• Voice Attributes includes tools to set the main parameters of the character’s voice.
• Select Voice allows you to select a specific pre-prepared voice for your character.
• Customize Voice allows you to modulate your character’s chosen voice in a variety of ways.

Voice Attributes

The Voice Attributes section contains tools for selecting the library of voices you wish to access and filtering these lists for particular traits.

The selections you make in these drop-down menus affects what voices are available within the Select Voice section.

Source

Allows you to toggle between the Inworld libraries that contain character voices.

• All includes every voice available in a single list.
• Inworld Voices allows you to select from Inworld's standard library of voices.
• ElevenLabs Voices only appear as an option if you have connected to an ElevenLabs account.

Gender

This drop-down adds a filter to the Select Voice options by perceived gender, limiting what is shown.

This can be useful if you are looking for a specific type of voice and want to narrow down your choices.

• All removes all filters, showing voices from every available perceived gender.
• Androgynous Sounding filters the list to only show voices that are neither feminine nor masculine.
• Feminine Sounding filters the list to only show feminine voices.
• Masculine Sounding filters the list to only show masculine voices.

Age

This drop-down adds a filter to the Select Voice options by perceived age, limiting what is shown.

This can be useful if you are looking for a specific age range for your character, from younger to more mature.

• All removes all filters, showing voices from every perceived age range.
• Middle-Aged filters the list to only show voices are adult-sounding with no specific age traits.
• Older filters the list to only show voices that be perceived as older or more wise.
• Youthful filters the list to only show voices that would be perceived as young or energetic.

Accent

This drop-down adds a filter to the Select Voice options by accent, limiting what is shown.

This can currently be toggled for English-speaking voices between British and American.

• All shows both British and American accents.
• American Accent filters the list to only show voices perceived as North-American.
• British Accent filters the list to only show voices that be perceived as from the British Isles.

Select Voice

This is the main section where you select and test your character’s voice.

The options given here are filtered by the options given in the Voice Attributes section above. There are a lot of voice options here, so it is recommended you add any desired filters before searching the list.

The Voice drop-down allows you to select your character’s voice.

To test what your character’s voice sounds like, press the Preview Voice button.

The default phrase your character will say is: “Hello I am Character’s Name”

If you wish the test voice to say something different, you can enter a phrase into the Preview Voice Says… field.

Make sure to add commas if you want the AI to briefly pause at any point in the diction.

Customize Voice

The Customize Voice section allows you to modulate your selected voice with either its Pitch or Talking Speed.

Note that only the legacy voices support Pitch. This option is greyed-out with the newer Inworld voices, as this setting is not needed due to the higher quality of these voices and their greater ability to self-modulate.

• Pitch controls the tone of your character’s voice. Lower values will lead to deeper voices, while higher values will lead to higher-pitched voices
• Talking Speed controls the rate of your character’s speaking voice. Lower values make the character speak slower, while higher values make them speak faster.

Custom Voices

If none of the provided Inworld voices are the right fit for your character, please contact us to discuss working with voice actors and third-party integrations.

Integrating 3rd Party Voices

In addition to using Inworld's library of voice options, it is also possible to integrate voices created by 3rd party companies.

ElevenLabs Integration

ElevenLabs is a company that specializes in high-quality AI-generated text-to-speech voices.

These voices can be added to your Inworld Studio Voice library to expand your options when selecting a character voice.

To add ElevenLabs voices to Inworld Studio, follow the steps below:

1. Set up Account

Set up an ElevenLabs Account

2. Add Voices to Library

Within your ElevenLabs account, add voices to your Voice Library.

3. Copy ElevenLabs API Key

Once your Voice Library has your desired voices in it, find your ElevenLabs account's API Key and Copy it.

4. Open Integrations

Return to your Inworld workspace and select Integrations.

5. Enter API Key into Inworld

Within the ElevenLabs Integration section, click the Edit button and paste your ElevenLabs API Key into the field provided.

Then, press Edit again to lock your API key into the field.

6. Voices are Now Active

Then, return to your character's Voice Attributes section.

The voices from your ElevenLabs Voice Library are now included in the list for available voices.

⚠️ Cloning: ElevenLabs voices are not transferable when cloning workspaces. You need to re-configure voices with your own API key.

Exceeding Elevenlabs Quota

Depending on the details of your account with ElevenLabs, there may be a set monthly quota for how many text characters can be converted into speech.

If this quota is exceeded, any character that uses an ElevenLabs voice will default to an Inworld-provided voice until the next ElevenLabs billing period.