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🇹🇭 THAI-SER Dataset 🎭
Published by: AI Research Institute of Thailand (AIResearch)
In collaboration with:
- Vidyasirimedhi Institute of Science and Technology (VISTEC)
- Digital Economy Promotion Agency (depa)
- Department of Computer Engineering, Faculty of Engineering, Chulalongkorn University
- Department of Dramatic Arts, Faculty of Arts, Chulalongkorn University
Sponsored by: Advanced Info Services Public Company Limited (AIS), and Siam Commercial Bank (SCB)


License: Creative Commons BY-SA 4.0
🚀 Dataset Overview
THAI-SER is an open Thai speech emotion recognition dataset containing emotional speech utterances in Thai. This dataset includes recordings of professional actors performing scripted and improvised scenarios.
🌟 Key Highlights
- Total Duration: 41 hours 36 minutes
- Total Utterances: 27,854
- Number of Actors: 200 (112 female, 88 male)
- Recording Environments: Studio (controlled & uncontrolled), Zoom
- Emotions: Neutral, Anger, Happiness, Sadness, Frustration
- Session Types: Script Session, Improvisation Session
🎙️ Recording Environments
The dataset comprises recordings from two main environments:
🎧 Studio Recordings
- Studio A: Noise-controlled, soundproof rooms (
studio001
tostudio018
) - Studio B: Normal rooms without soundproofing (
studio019
tostudio080
)
💻 Zoom Recordings
- Online via Zoom and Zencastr (
zoom001
tozoom020
)
📝 Session Details
📖 Script Session
Actors performed 3 predetermined sentences, each repeated twice per emotion with two emotional intensities (normal and strong), plus a neutral expression.
Sentence ID | Thai Sentence | English Translation |
---|---|---|
1 | พรุ่งนี้มันวันหยุดราชการนะรู้รึยัง หยุดยาวด้วย | Do you know tomorrow is a public holiday and it's the long one. |
2 | อ่านหนังสือพิมพ์วันนี้รึยัง รู้ไหมเรื่องนั้นกลายเป็นข่าวใหญ่ไปแล้ว | Have you read today's newspaper? That story was the topliner. |
3 | ก่อนหน้านี้ก็ยังเห็นทำตัวปกติดี ใครจะไปรู้หล่ะ ว่าเค้าคิดแบบนั้น | He/She was acting normal recently; who would have thought they'd think like that? |
🎬 Improvisation Session
Actors improvised conversations according to provided scenarios with specific emotions.
Scenarios | Actor A | Actor B |
---|---|---|
1 | (Neutral) A hotel receptionist trying to explain and service the customer | (Angry) A angry customer who dissatisfy the hotel services |
2 | (Happy) A person excitingly talking with B about his/her marriage plan | (Happy) A person happily talking with A and help him/her plan his ceremony |
3 | (Sad) A patient feeling depressed | (Neutral) A doctor attempting to talk with A neutrally |
4 | (Angry) A furious boss talking with the employee | (Frustrated) A frustrated person attempting to argue with his/her boss |
5 | (Frustrated) A person frustratingly talk about another person's action | (Sad) A person feeling guilty and sad about his/her action |
6 | (Happy) A happy hotel staffs | (Happy) Happy customer |
7 | (Sad) A sad person who felt unsecured about the incoming marriage | (Frustrated) A person who frustrated about another person's insecureness |
8 | (Frustrated) A frustrated patience | (Neutral) A Doctor talking with the patience |
9 | (Neutral) A worker who assigned to tell his/her co-worker about the company's bad situation | (Sad) An employee feeling sad after listenning |
10 | (Angry) A person raging about another person's behavior | (Angry) A person who feels like being blamed by another person |
11 | (Frustrated) A director who unsatisfied co-worker | (Frustrated) A frustrated person who try their best on the job |
12 | (Happy) A person who gets a new job or promotion | (Sad) A person who desperate in his/her job |
13 | (Neutral) A patient inquire information | (Happy) A happy doctor telling his/her patience more information |
14 | (Angry) A person who upset with his/her work | (Neutral) A calm friend who listened to another person's problem |
15 | (Sad) A person sadly tell another person about a relationship | (Angry) A person who feels angry after listening to another person's bad relationship |
📋 Data Schema
The dataset includes detailed annotations and actor demographics (see header above).
📊 Dataset Statistics
Recording Environment | Session | Utterances | Duration (hrs) |
---|---|---|---|
Zoom (20) | Script | 2,398 | 4.03 |
Improvisation | 3,606 | 5.89 | |
Studio (80) | Script | 9,582 | 13.69 |
Improvisation | 12,268 | 18.01 | |
Total (100) | Both | 27,854 | 41.61 |
📄 Paper
The associated research paper will be available soon at link will be updated soon.
💻 Code for Experiments
Experiment code is available on GitHub.
🔖 Version
- Version 2.0 (April 15, 2025): Fixed majority agreement calculation.
- Version 1.0 (March 26, 2021): Initial release.
📌 Citation
Please cite this dataset as:
AIResearch, VISTEC, depa, and Chulalongkorn University (2021). THAI-SER Dataset, Version 2.0. Creative Commons BY-SA 4.0.
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