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Introduction
NaturalReader offers several ways to create and customize AI voices to suit your listening preferences. With Voice Design, you can create unique, multilingual voices based on your descriptions or generate voices specifically suited to the content you're reading. Voice Cloning lets you create an AI voice based on a recording of your own voice.
Voice Design and Voice Cloning are available with Plus and Pro subscriptions and are powered by Google's Gemini 3.8 technology. Both plans support these features, but use different AI models, with Pro offering a more advanced model for voice generation.
This guide walks you through creating, customizing, and managing your AI voices.
For more information about voice availability and usage limits, see Voices, Languages, and TTS Limits.
If you're new to NaturalReader's AI voices, see our AI Voices and Voice Selection guide to learn how to browse, select, and manage available voices.
Voice Design
Voice Design lets you create a unique, multilingual AI voice tailored to your preferences or the content you're reading. You can describe the voice you want, start with a preset, or let NaturalReader design a voice specifically for your text or document.
Accessing Voice Design
You can open Voice Design in several ways:
From the Explore tab in the AI Voices hub, enter a description directly in the Voice Design section or start with a preset.
From any tab in the AI Voices hub, select Create New Voice, then Design Voice.
While reading, open the voice selection panel by selecting the speaker portrait and choose Design Voice to customize the currently selected voice. This option is available for supported Designed Voices, including presets and voices you've created yourself.
Ways to Design a Voice
There are three ways to get started:
Describe Your Voice: Enter a description of how you'd like your voice to sound, including characteristics such as accent, age, tone, personality, and speaking style.
Use a Voice Preset: Start with a predefined voice description that you can use as provided or customize.
Design for Your Content: Enter text, upload a document, or select a document from your reading history. NaturalReader will analyze the content and generate a voice description suited to it.
Once you've chosen how to start, you can review and customize the generated voice description before creating your voice.
Creating a Voice from a Description
Voice Design allows you to create a custom AI voice by entering a prompt describing how you want it to sound.
Open AI Voices and go to the Explore tab.
If desired, use the language selector to change the language.
In the Voice Design section, enter a description of your desired voice. You can specify characteristics such as age, tone, personality, pacing, speaking style, language, and accent. Or select a preset description to get started with.
Optionally, click Settings to select a gender (Female or Male) and age group (Young Adult, Mature, or Senior). These settings help guide voice generation alongside your description.
Select Create new voice to generate your voice.
Listen to the generated voice preview. If the result isn't quite right, adjust the description and regenerate the voice until you're satisfied.
Select Use this voice to finish and use your newly designed voice.
Creating a Voice from a Preset
If you're unsure how to describe a voice or prefer a starting point, you can use one of the available presets.
Open AI Voices and go to the Explore tab.
If desired, use the language selector to change the language.
Browse the suggested voice presets.
Click the arrow icon (↗) on a preset to open it in Voice Design.
Review the preset's description. You can keep it as provided or modify its characteristics to suit your preferences.
Generate, preview, and refine the voice as needed.
Select Use this voice when you're happy with the result.
Note: Designed Voices are multilingual and can read text in different supported languages. You can include a preferred language or accent in your voice description, although not all languages or accents may be supported.
Creating a Voice from Your Content
Voice Design lets you create a custom AI voice specifically suited to the content you're reading, whether it's a short passage, story, article, document, or an entire book. NaturalReader analyzes your content and generates a voice description that complements its subject matter, tone, and style.
Open AI Voices and go to the Explore tab.
If desired, use the language selector to change the language.
In the Voice Design section, click the + button to open the Create a voice by menu.
Choose one of the following options:
Upload Document: Upload a PDF, ePub, or Word file from your device.
Choose from Library: Select a document you've already added to NaturalReader.
Text of Reading: Paste the passage you want the voice to read.
Follow the prompts to submit your content. NaturalReader will generate a suggested voice description based on the text.
Review the generated description and edit it to suit your preferences.
Optionally, use Settings to modify the gender and age group.
Generate your voice and listen to the preview.
Refine the description and regenerate the voice if needed.
Select Use this voice when you're satisfied with the result.
Note: The generated voice description is a starting point. You can modify it to better match your preferences before creating your voice.
Responsible Use: Voice Design is intended for creating original AI voices. You may describe general vocal characteristics or styles, but should not attempt to imitate or impersonate a specific real person. Do not use designed voices for deceptive, fraudulent, unlawful, or otherwise harmful purposes.
Voice Cloning
Voice Cloning lets you create a personalized AI voice using a short audio sample. You can record your voice directly in NaturalReader or upload an existing audio recording.
Creating a Cloned Voice by Recording
Open AI Voices and select Create New Voice > Record My Own Voice.
Select the language you'll be speaking in. Your cloned voice will be multilingual, regardless of the language selected for recording.
Review the provided Reading Prompts. You can select Refresh to generate different prompts or speak freely instead.
Click or tap the recording button to begin recording, then read the prompts or speak naturally.
Record for at least 5 seconds. You can press Stop when you're finished, or recording will automatically stop after 15 seconds.
Confirm that you have permission to use the voice, then select Next.
Follow the steps under Finalizing Your Cloned Voice below.
Creating a Cloned Voice by Uploading Audio
Open AI Voices and select Create New Voice > Upload a Sample.
Choose an audio recording from your device. Your audio sample should be 5–15 seconds long.
If needed, use Trim Audio to select a 5–15-second portion of your recording.
Select Play Selected to listen to your chosen audio clip.
Confirm that you have permission to use the voice, then select Next.
Follow the steps under Finalizing Your Cloned Voice below.
Important: Do not upload audio clips longer than 15 seconds. Longer clips may result in an error and do not necessarily produce a better voice clone.
Finalizing Your Cloned Voice
After recording or uploading your audio sample:
Enter a Voice name for your cloned voice.
Listen to the Preview voice sample.
Under Voice sharing, choose whether to keep your voice private (Don't Share) or share it with the NaturalReader community. Shared voices may be used by other NaturalReader users for personal use only. You can stop sharing your voice at any time.
Select the Gender of your voice (Male or Female).
Optionally, select up to three Voice traits to describe your voice, such as Warm, Calm, Confident, or Deep.
Select Save Voice to finish.
Responsible Use: Only clone your own voice or a voice you have explicit permission to clone. Voice Cloning must not be used for impersonation, fraud, deception, or other unlawful or harmful purposes. NaturalReader reserves the right to remove cloned voices at any time at its discretion. Misuse of Voice Cloning may also result in account suspension or termination.
Managing My Voices
You can find and manage your custom voices, including Designed Voices, Cloned Voices, and favourites, from the voice selection panel or the AI Voices hub.
From the Voice Selection Panel
While reading, open the voice selection panel by clicking the speaker portrait and go to the My Voices tab.
Find the voice you want to manage.
Hover over the voice and select the three-dot menu (⋯) to:
View Details: See information about the voice.
Rename Voice: Change the voice's name.
Delete Voice: Permanently remove the voice.
From the AI Voices Hub
Open AI Voices and go to the My Voices tab.
Browse your voices using the All, Designed, Cloned, or Favourited filters.
Hover over a voice to access the following options:
Heart icon: Add or remove the voice from your favourites.
Use voice: Select the voice for your current reading.
Three-dot menu (⋯): View voice details, rename the voice, or remove it.
Other Resources
General
Personal Version AI Text to Speech
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