Unlock the World’s Most Comprehensive ASR* and TTS* Datasets
*Automatic Speech Recognition and Text-to-SpeechUnlock the Power of Data for Your Business
3.5M+
Decentralized participants
9M+
Multimodal Data Set Samples
14+
Satisfied Applied AI Clients
80+
Countries
1M+
Hours of Human In The Loop work
Partners
Our Solutions
The World’s Premier Automatic Speech Recognition (ASR) & Text-To-Speech (TTS) Dataset Collection
At PublicAI, we specialize in delivering high-quality Automatic Speech Recognition (ASR) and Text-to-Speech (TTS) datasets designed to power the next generation of AI applications.
Countries & Regions
Diverse recordings from Asia, Europe, the Middle East, and the Americas.
Languages
44+ supported, with a core focus on 12 major global languages: 🇰🇷 🇯🇵 🇬🇧 🇺🇸 🇹🇭 🇩🇪 🇫🇷 🇨🇳 🇮🇹 🇪🇸 🇷🇺 🇦🇪
Total Volume
101,000+ hours of professionally collected and verified audio
Acceptance Rate
95%Faster
20%Less Cost
50%Industry Coverage
99%
Data Quality
Audio Specs
24kHz / 16bit WAV (minimum 16kHz), single channel.
Accuracy
>98% text-audio alignment, with <2% word error rate.
Diversity
Wide speaker distribution; per language ≥10 speakers with 100+ hours each.
Usability
Real-world recordings free from distortion, clipped frames, or unusable noise (SNR >10dB).
Why PublicAI?
Scale
Industry-leading volume with 100k+ hours across dozens of languages.
Quality
Rigorous multi-stage quality control with near-perfect alignment.
Legality
All data is collected with proper consent, rights, and usage authorization
Flexibility
Custom subsets available by language, region, or scenario.
Future-Proof
Optimized for both ASR training and TTS voice synthesis.
Audio Collection and Annotation
Our datasets are carefully curated across everyday and professional domains, enabling robust model training:
- Business meetings & negotiations
- Education & classroom dialogue
- Travel & tourism conversations
- Daily life & household communication
- Social interactions & family discussions
- Public speaking, storytelling, and presentations
