CSEMOTIONS: High-Quality Mandarin Emotional Speech Dataset

CSEMOTIONS is a high-quality Mandarin emotional speech dataset designed for expressive speech synthesis, emotion recognition, and voice cloning research. The dataset contains studio-quality recordings from six professional voice actors across seven carefully curated emotional categories, supporting research in controllable and natural language speech generation.

Dataset Summary

• Name: CSEMOTIONS
• Total Duration: ~10 hours
• Speakers: 10 (5 male, 5 female) native Mandarin speakers, all professional voice actors
• Emotions: Neutral, Happy, Angry, Sad, Surprise, Disgust, Fear
• Language: Mandarin Chinese
• Sampling Rate: 48kHz, 24-bit PCM
• Recording Setting: Professional studio environment
• Evaluation Prompts: 100 per emotion, in both English and Chinese

Dataset Structure

Each data sample includes:

• audio: The speech waveform (48kHz, 24-bit, WAV)
• transcript: The transcribed sentence in Mandarin
• emotion: One of {neutral, happy, angry, sad, surprise, disgust, fear}
• speaker_id: An anonymized speaker identifier (e.g., S01)
• gender: Male/Female
• prompt_id: Unique identifier for each utterance

Intended Uses

CSEMOTIONS is intended for:

• Expressive text-to-speech (TTS) and voice cloning systems
• Speech emotion recognition (SER) research
• Cross-lingual and cross-emotional synthesis experiments
• Benchmarking emotion transfer or disentanglement models

Dataset Details

Property	Value
Total audio hours	~10
Number of speakers	6 (3♂, 3♀, anonymized IDs)
Emotions	Neutral, Happy, Angry, Sad, Surprise, Disgust, Fear
Language	Mandarin Chinese
Format	WAV, mono, 48kHz/24bit
Studio quality	Yes

Label	Duration	Sentences
Sad	1.73h	546
Angry	1.43h	769
Happy	1.51h	603
Surprise	1.25h	508
Fearful	1.92h	623
Playfulness	1.23h	621
Neutral	1.14h	490
Total	10.24h	4160

Download and Usage

To use CSEMOTIONS with 🤗 Datasets:

from datasets import load_dataset

dataset = load_dataset("AIDC-AI/CSEMOTIONS")

Acknowledgements

We would like to thank our professional voice actors and the recording studio staff for their contributions.

License

The project is licensed under the Apache License 2.0 (http://www.apache.org/licenses/LICENSE-2.0, SPDX-License-identifier: Apache-2.0).

📜 Citation

@misc{tian2025marcovoicetechnicalreport,
      title={Marco-Voice Technical Report}, 
      author={Fengping Tian and Chenyang Lyu and Xuanfan Ni and Haoqin Sun and Qingjuan Li and Zhiqiang Qian and Haijun Li and Longyue Wang and Zhao Xu and Weihua Luo and Kaifu Zhang},
      year={2025},
      eprint={2508.02038},
      archivePrefix={arXiv},
      primaryClass={cs.CL},
      url={https://arxiv.org/abs/2508.02038}, 
}

Disclaimer

We used compliance checking algorithms during the training process, to ensure the compliance of the trained model and dataset to the best of our ability. Due to the complexity of the data and the diversity of language model usage scenarios, we cannot guarantee that the dataset is completely free of copyright issues or improper content. If you believe anything infringes on your rights or contains improper content, please contact us, and we will promptly address the matter.