IEMOCAP

by USC SAIL Lab

12h dyadic emotional speech corpus — the gold-standard SER benchmark.

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TL;DR

Best for speech emotion recognition (SER) with 5-class + dimensional labels (valence/arousal/dominance). Pricing: research-only.

Category
Open source
License
—
Stars
—
Last push
—
Pricing
research-only
Platforms
Web

What it is

IEMOCAP (Interactive Emotional Dyadic Motion Capture) is 12 hours of scripted + improvised emotional speech from 10 actors. The de-facto SER benchmark. Research-only license.

Best for: Speech emotion recognition (SER) with 5-class + dimensional labels (valence/arousal/dominance).
Watch out for: USC research license · request form · NON-COMMERCIAL · 10 actors in dyadic sessions · scripted + improvised. Cite: Busso et al., LREC 2008.

Install / use

Go to IEMOCAP sail.usc.edu

Features

Speaker diarizationYes
Word-level timestampsNo
Streaming / real-timeNo
Languages supported1
HIPAA eligibleNo

IEMOCAP vs Whipscribe

FeatureIEMOCAPWhipscribe
CategoryOpen sourceTranscription APIs
Pricingresearch-only$4–$24 one-time packs (credits never expire) · $2 single unlock · 60 min free on signup
Speaker diarizationYesYes
Word timestampsNoYes
StreamingNoNo
Languages199
PlatformsWebWeb, API, MCP

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