Audio Annotation Tool
TRUST THROUGH HUMAN REVIEW
Build better Voice AI with expert-led audio annotation in Ango Hub. From multilingual ASR gold data to conversational intelligence and evaluation, we help teams turn audio into dependable training signals.
WHAT ANGO HUB OFFERS
Ango Hub supports audio annotation as part of a broader AI data platform, combining workflow automation with expert-in-the-loop delivery. iMerit works on your speech and audio data to produce high-quality ground truth for ASR, voice agents, and voice analytics, with clear oversight from labeling through review.
WORKFLOW MANAGEMENT
Orchestrate your audio programs with structured workflows that keep work moving. Configure roles, handoffs, and routing across labeling and review, with centralized instructions and task management built in.
BUILT-IN QUALITY CHECKS
Maintain gold-data standards with structured review workflows, benchmarking, and real-time issue resolution so transcription, diarization, and labeling decisions stay consistent across teams.
AUTOMATION
Accelerate production with model-assisted workflows that reduce manual effort. Use automation to jump-start transcription and labeling, then refine with human review for dependable final ground truth.
INTEGRATIONS
Plug into your Voice AI stack with SDK/API support, model plugins, and webhooks, and connect outputs to downstream pipelines for fast handoffs and iteration.
ANALYTICS
Track delivery and quality signals with reporting that shows what’s completed each day, how it’s performing, and where to optimize throughput or retrain.
SECURITY AND GOVERNANCE
Support sensitive voice programs with role-based permissions and security and compliance aligned to your requirements, including governed handling for regulated workflows.
USE CASES
From transcription to evaluation, iMerit helps teams turn your audio and speech data into high-quality ground truth for Voice AI training and benchmarking.
- BESPOKE AUDIO AND SPEECH DATA COLLECTION
Design and execute custom labeling programs on your audio across languages, accents, and environments, tailored to your model goals and edge cases. - GOLD DATA FOR MULTILINGUAL ASR
Create high-accuracy transcripts on your data with segmentation, timestamps, and speaker diarization to train and validate ASR in real-world conditions. - CONVERSATIONAL INTELLIGENCE AND GOVERNANCE
Label intents, entities, outcomes, and behaviors from your customer or agent conversations, including PII redaction and compliance tagging where required. - PRECISION EVALUATION FOR VOICE AI
Benchmark Voice AI performance on your recordings across accuracy, robustness, and safety, including TTS attributes like naturalness, style, and persona consistency. - AMBIENT SCRIBE
Annotate and evaluate clinician patient audio from your workflows to support ambient documentation accuracy and reliability, with quality-first review processes.
SCALING
HUMAN IN THE LOOP
AI-Assisted features of iMerits’ Ango Hub will automate your AI data workflows to improve efficiency and model RLHF, allowing domain experts to focus on applying their knowledge to create high-quality data.
WHY CHOOSE iMERIT
Merit delivers high-quality audio annotation for Voice AI, combining expert human judgment with scalable workflows. Our teams handle everything from multilingual speech data and transcription to conversational intelligence and evaluation so you can trust the data behind your ASR, voice agents, and voice analytics.
EXPERT-IN-THE-LOOP EVALUATION
Expert reviewers handle nuanced speech cases like accents, overlaps, domain jargon, and ambiguity, ensuring your audio labels stay accurate and consistent across languages and scenarios.
TECHNOLOGY & SCALE
Ango Hub supports audio workflows end to end with structured task management, collaboration, and delivery visibility so you can scale large speech programs without losing consistency.
SECURITY
We support sensitive voice programs with enterprise-grade controls, governed access, and compliance-ready handling for regulated workflows like PII and policy requirements.
Featured
Content
GETTING
STARTED!
Scale speech and sound datasets fast. Ango Hub supports transcription, diarization, and sound event labeling, with iMerit delivering consistent audio annotation end to end.
