Create Ethical AI Voice Text-to-Speech Datasets

Build AI voice text-to-speech datasets with multilingual, ethically sourced voice data.

Whether you need a synthetic voice dataset to train your next AI voice model or an authentic TTS dataset for audiovisual projects, Voice123 provides real human recordings that power natural and compliant AI systems.

Over 1 Million Voice Over Jobs Completed

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    Define Your Specs

    We’ll create a custom TTS dataset designed for your AI text to voice based on your project’s languages, hours, labels, and formats.

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    Enjoy Full Production

    We recruit, record, and QA your data using professional voice actors — ideal for AI TTS and multilingual TTS datasets.

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    Receive Your Recordings

    Get clean audio with phoneme alignments and transcripts ready for training synthetic voice datasets or voice AI applications.

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What are TTS datasets?
TTS (Text-to-Speech) datasets are curated collections of human-recorded speech aligned with transcripts, phonemes, and prosody data. They serve as the foundational training material for AI models that generate realistic synthetic voices.
How is a dataset different from an AI voice license?
A dataset provides raw voice data (audio + metadata) to train or fine-tune your own models. An AI voice license gives you access to pre-built voices. Think of datasets as the training fuel, and licensing as the final product.
Which languages do you support?
We support all languages that are not on the US Sanctions list.
Can I request specific languages, accents, or emotions?
Yes. We offer 100+ languages and accents, plus emotional delivery styles like happy, sad, excited, calm, whisper, or shout.
Do you provide off-the-shelf datasets?
No, we’ll help you create a dataset that’s tailored to your project specs so you can get fully customized AI voice datasets for individual projects.
How do you ensure quality?
Every file passes audio QC (clipping, noise, loudness), transcript validation, and alignment accuracy checks. Clients also receive a coverage report detailing voice diversity and dataset balance.
What about licensing and compliance?
All recordings are made by professional voice actors with documented consent. You receive a clear, legally binding usage license—future-proofing you against legal or ethical challenges.
How fast is delivery?
A 20-hour recording can be ready in 1–2 weeks; 50-hour multi-language projects typically take 6–8 weeks. We provide timelines upfront and deliver iteratively when possible.
Do you handle the entire process?
Ideally, yes. We handle casting, production, payments, and post-production if needed. But if you already have the production and payments in place, we can help you with casting only. Feel free to ask for this whenever you talk to an expert.
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