Premium Audio & Speech Annotation Services
Transform your audio into AI-ready training data with precise, human-verified annotations. From transcription to phonetic analysis, we deliver the quality your models demand.
- Audio Transcription
- Timestamping
- Speaker Diarization
- Phonetic Annotation
- Sound Event Detection
- Audio Enhancement
Trusted by teams building safety-critical AI
Security-first. EU-based. GDPR-native.
Comprehensive Audio Annotation Capabilities
From speech-to-text to complex acoustic analysis—we handle every audio annotation need with precision.
Audio Transcription
Convert spoken words to text with industry-leading accuracy. Verbatim and intelligent transcription with speaker attribution and context preservation.
Precise Timestamping
Segment audio with frame-accurate timestamps for seamless integration with your training pipelines and quality assurance workflows.
Speaker Diarization
Identify and label multiple speakers in complex audio. Overlapping speech detection and speaker turn tracking for conversation AI.
Phonetic Annotation
International Phonetic Alphabet transcription and phoneme-level annotation for speech synthesis and pronunciation training.
Sound Event Detection
Label environmental sounds, music elements, and acoustic events. Custom taxonomies for your specific audio classification needs.
Audio Enhancement
Noise reduction labeling, quality assessment, and audio preprocessing annotation for cleaner training data.
Powering AI Across Industries
Specialized audio annotation for the world's most demanding applications.
Voice Assistants
Power next-generation voice interfaces with precisely annotated conversational data.
- → Wake word training data
- → Intent classification
- → Entity extraction
Call Center Intelligence
Transform customer interactions into actionable insights with emotion and intent labeling.
- → Agent performance metrics
- → Compliance monitoring
- → Customer satisfaction tracking
Media & Broadcasting
Streamline media workflows with accurate transcription and content tagging.
- → Multi-language subtitles
- → Content discovery
- → Archive accessibility
Automotive Voice Control
Train robust in-vehicle voice systems with diverse driving condition audio.
- → Noise-resistant commands
- → Multi-accent support
- → Safety-critical precision
Research & Academia
Support academic research with rigorous annotation following linguistic standards.
- → Custom annotation schemas
- → Publication-ready data
- → Reproducible methodologies
Healthcare & Medical AI
Secure medical transcription and clinical conversation annotation.
- → PHI handling protocols
- → Medical terminology
- → Clinical workflow integration
Your Audio Annotation Partner
We combine human expertise with rigorous processes to deliver annotation that powers production AI.
Human Intelligence at Scale
Our expert annotators combine domain expertise with rigorous quality processes. Every audio file reviewed by trained specialists.
- ✓ Certified linguists
- ✓ Domain experts
- ✓ Multi-tier review
Flexible Scaling
Scale from pilot projects to millions of hours. Our elastic workforce adapts to your timeline and volume requirements.
- ✓ 24-hour turnaround
- ✓ 10K+ hours/month capacity
- ✓ Burst scaling
Your Data, Protected
Enterprise-grade security with GDPR compliance, encrypted storage, and strict access controls. Your audio never leaves our secure environment.
- ✓ End-to-end encryption
- ✓ EU data residency
- ✓ Audit trails
Our Proven Process
Tested methodology from requirements to delivery. Clear milestones, quality gates, and transparent communication.
- ✓ Defined SLAs
- ✓ Regular reporting
- ✓ Dedicated PM
Built for Audio Excellence
Industry-standard tools and formats for seamless integration.
Audio Processing
- Praat
- Audacity
- SoX
- FFmpeg
- Whisper ASR
Annotation Platforms
- Label Studio
- Praat TextGrids
- ELAN
- Custom Tools
- API Integration
Export Formats
- TextGrid
- JSON
- XML
- CSV
- WAV Segments
- Custom
From Pilot to Production
A proven, transparent process designed for enterprise reliability.
Discovery & Setup
Requirements gathering, sample review, and project scoping. We align on annotation guidelines and success metrics.
Pilot Batch
Small-scale annotation to calibrate quality and refine guidelines. Feedback loop to ensure alignment before production.
Production & QA
Full-scale annotation with multi-tier quality checks. Regular sampling, inter-annotator agreement monitoring, and drift detection.
Delivery & Iteration
Versioned exports in your preferred format. Continuous improvement based on feedback and edge case resolution.
Train Models That Actually Hear
From transcription to acoustic analysis—our human-verified audio annotations eliminate the guesswork in speech AI. Get your free pilot and see why leading voice AI companies trust our precision.
HIPAA & GDPR compliant • Multilingual support • Expert QA validation
Enterprise-Grade Security
Your audio data is protected by industry-leading security practices and full GDPR compliance.
End-to-End Encryption
256-bit AES encryption for data at rest and in transit.
Access Control
Role-based access with multi-factor authentication.
GDPR Compliance
Full EU data protection regulation adherence.
Audit Logging
Complete activity tracking and access audits.
Secure Infrastructure
ISO 27001 aligned practices and procedures.
Data Retention
Configurable retention policies and secure deletion.
Data Protection Officer
Response Time
All data requests processed within 30 days
Compliance Standards
GDPR, CCPA, and global privacy regulations
Ready to Power Your Audio AI?
Join leading companies that trust YPAI for their audio annotation needs. Start with a free pilot project today.