Princep Hero Illustration

Real Human Conversations, Real Emotions, Global Reach

Real Human Conversations, Real Emotions, Global Reach

Train more authentic conversational AI with diverse, natural voice data—expertly curated and AI-ready at production scale. From TTS models to emotion detection, we provide the Ground Truth your models need.

Talk to Sales
0+
Production-Grade Hours
Live
+200 hrs added
0+
Unique Speakers
0+
Languages
English (9 accents) primary
0%
With Transcripts

How Our Data Improves Your AI Models

Purpose-built datasets for every stage of your conversational AI development

Bias-Aware ASR Training

Train robust ASR models across 10+ English accents: US, UK, Canada, India, Nigeria, Pakistan, Australia, Hong Kong, and New Zealand. Aligned Ground Truth transcripts ensure models generalize better to diverse real-world users.

Natural Language Understanding (NLU)

Day-to-day conversations from real job interviews. Unscripted, spontaneous responses teach your AI how humans actually talk. Capture hesitations, corrections, and complex sentence structures for superior conversational agents.

Multimodal Sentiment Analysis

Video + Audio + Transcripts: Training data for next-gen emotion detection. Facial micro-expressions, tonal variance, and semantic context are perfectly synchronized for frame-accurate training.

Speaker Diarization & ID

47,138 unique speakers across professions and regions. Build robust speaker identification models that perform reliably in the wild, not just in controlled studio environments.

Common Applications

Voice Assistants • Customer Service AI • Fintech Voice Verification • Healthcare Chatbots • Content Moderation • Call Center Analytics • Podcast Transcription • Interview Intelligence

What Makes Our Data Different

Unrivaled authenticity and legal peace of mind

Data Provenance Advantage

Every second of data is sourced from real-world workflows with 100% explicit consent, ensuring complete legal and ethical safety for enterprise models.

01

Human-in-the-Loop Validation

Native-speaker verification for all Gold and Silver datasets, achieving 99%+ accuracy in transcription and sentiment alignment.

02

Granular Metadata Schema

Rich labeling including background noise levels, emotional intensity, and acoustic profiles for precise model fine-tuning.

03

Corner-Case & Accent Coverage

Massive library of non-standard accents and emotional variance (stress, fatigue, joy) often missing from studio-recorded sets.

04

Explore Our Dataset Marketplace

Find the right data for your AI use case

Off-the-Shelf

Standardized, Ready-to-Go Datasets

10,000+ hours of multilingual audio with aligned transcripts, metadata, and documentation. Consistent structure for immediate deployment in your training pipelines.

Multi-Accent
ASR
Ready-to-Deploy
Custom Builds

Tailored to Specific Requirements

Choose your accent mix, speaker balance, interview categories, and annotation depth. We build custom datasets from our library to match your exact model goals.

Custom
Flexible
Tailored
✓ 100% Explicit Consent
✓ Commercial Indemnification
✓ GDPR & CCPA Compliant

Annotation & Quality Tiers

Every dataset is available in three validation levels—from raw audio to expert-verified ground truth

Whether you choose Off-the-Shelf or Custom, you decide the level of human verification

Bronze

  • ✓ Raw Data: Unprocessed recordings with basic metadata
  • ✓ Audio + Video + Auto-generated transcripts
  • ✓ Suitable for foundation model pre-training
  • ✓ One-time purchase or subscription available
  • ✓ Bulk discounts at 1,000+ hours

Silver

  • ✓ AI-Assisted + Human QA: Humans-in-the-loop validation
  • ✓ Automated transcription with expert review
  • ✓ ~95% accuracy for most use cases
  • ✓ One-time purchase or subscription available
  • ✓ Most popular for production ASR training

Gold

  • ✓ Expert-Verified: Fully human-annotated ground truth
  • ✓ Linguist-reviewed transcripts with speaker diarization
  • ✓ 99%+ accuracy for benchmark datasets
  • ✓ One-time purchase or subscription available
  • ✓ Ideal for model evaluation and fine-tuning

Couldn't find the right dataset for you?

Talk to Sales

See It Before You Buy

Request a free sample in your chosen quality tier

By Accent/Region

US, UK, Canada, India, Nigeria, Pakistan, Australia, Hong Kong, New Zealand

By Industry/Profession

HR, Finance, Marketing, Management, Legal, Consulting, Customer Service, Administrative

By Modality

Audio-only, Video+Audio, or Full Multimodal (Video+Audio+Text)

About Princep.io
10,000+
Hours of Data
47K+
Participants
10+
Countries

About Us

Princep.io bridges the gap between raw data and Production AI. We identified a critical failure point in modern ML: the lack of ethically sourced, authentic human data.

Unlike scraping or "gig-work" inputs, our data flows from a real-world hiring platform. This gives us—and you—unrivaled Provenance. We connect AI teams with 47,000+ candidates who have actively opted in to help build the future of fair, unbiased AI.

Trust is our product. With clear Commercial Indemnification and strict GDPR compliance, we allow enterprises to innovate without looking over their shoulder.

Our Ground Truth Quality Pipeline

Organic Data Ingestion

Provenance Matter: Data is captured from real-world, high-stakes interview workflows (not staged scripts). This ensures authentic speech patterns, hesitations, and natural emotional variance that actors cannot replicate.

AI Pre-Labeling & Segmentation

Our automated pipeline handles initial transcription, timestamping, and speaker diarization. This creates a "Silver Standard" baseline, accelerating the process without sacrificing the potential for scale.

HITL Expert Verification

The Gold Standard: Native speakers and linguists review critical segments. We measure Inter-Annotator Agreement (IAA) to ensure every dataset meets strict "Ground Truth" benchmarks before delivery.

Quality Pipeline Visualization

Frequently Asked Questions

Common questions about our structured video intelligence feed

How is the data delivered and what formats are supported?

We deliver data via secure S3 buckets or direct API integration. We support all standard formats including JSON, CSV, WAV, MP4, and custom formats upon request to match your ingestion pipeline.

How do you ensure data quality and accuracy?

Our pipeline combines automated pre-labeling with rigorous Human-in-the-Loop (HITL) verification. We maintain specific benchmarks for accuracy and Inter-Annotator Agreement (IAA) to ensure high-fidelity ground truth.

What historical data is available and how is it maintained?

We maintain a rolling archive of the past 24 months of data, updated daily. All datasets are version-controlled, allowing you to access historical states for model regression testing.

How do you handle compliance and data rights?

All candidates explicitly opt-in for AI training usage. We provide full commercial indemnification and adhere to strict GDPR, CCPA, and potential future AI regulation standards.

What technical support and integration assistance do you provide?

Our engineering team provides dedicated onboarding support, custom data formatting, and direct Slack channels for enterprise clients to ensure seamless integration with your ML ops.

Ready to Train More Authentic AI?

Talk to our team about your specific data requirements

Request Data Sample
Talk to Sales