GDGiangi/SEIRDB

Speech Emotion Intensity Recognition Database (SEIR-DB)

Dataset Summary

The SEIR-DB is a comprehensive, multilingual speech emotion intensity recognition dataset containing over 600,000 instances from various sources. It is designed to support tasks related to speech emotion recognition and emotion intensity estimation. The database includes languages such as English, Russian, Mandarin, Greek, Italian, and French.

Supported Tasks and Leaderboards

The SEIR-DB is suitable for:

• Speech Emotion Recognition (classification of discrete emotional states)
• Speech Emotion Intensity Estimation (a subset of this dataset, where intensity is rated from 1–5)

SPEAR (8 emotions – 375 hours)

SPEAR (Speech Emotion Analysis and Recognition System) is an ensemble model developed by Gabriel Giangi and serves as the SER benchmark for this dataset. Below is a comparison of its performance against the best fine-tuned pre-trained model (WavLM Large):

WavLM Large Test Accuracy	SPEAR Test Accuracy	Improvement
87.8%	90.8%	+3.0%

More detailed metrics for SPEAR:

Train Accuracy (%)	Validation Accuracy (%)	Test Accuracy (%)
99.8%	90.4%	90.8%

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Languages

SEIR-DB encompasses multilingual data, featuring languages such as English, Russian, Mandarin, Greek, Italian, and French.

Dataset Structure

Data Instances

The raw data collection comprises over 600,000 data instances (375 hours). Users of the database can access the raw audio data, which is stored in subdirectories of the data directory (in their respective datasets).

After processing, cleaning, and formatting, the dataset contains approximately 120,000 training instances with an average audio utterance length of 3.8 seconds.

Data Fields

• ID: unique sample identifier
• WAV: path to the audio file, located in the data directory
• EMOTION: annotated emotion
• INTENSITY: annotated intensity (ranging from 1-5), where 1 denotes low intensity, and 5 signifies high intensity; 0 indicates no annotation
• LENGTH: duration of the audio utterance

Data Splits

The data is divided into train, test, and validation sets, located in the respective JSON manifest files.

• Train: 80%
• Validation: 10%
• Test: 10%

For added flexibility, unsplit data is also available in data.csv to allow custom splits.

Dataset Creation

Curation Rationale

The SEIR-DB was curated to maximize the volume of data instances, addressing a significant limitation in speech emotion recognition (SER) experimentation—the lack of emotion data and the small size of available datasets. This database aims to resolve these issues by providing a large volume of emotion-annotated data that is cleanly formatted for experimentation.

Source Data

The dataset was compiled from various sources.

Annotations

Annotation process

For details on the annotation process, please refer to the source for each dataset, as they were conducted differently. However, the entire database is human-annotated.

Who are the annotators?

Please consult the source documentation for information on the annotators.

Personal and Sensitive Information

No attempt was made to remove personal and sensitive information, as consent and recordings were not obtained internally.

Considerations for Using the Data

Social Impact of Dataset

The SEIR-DB dataset can significantly impact the research and development of speech emotion recognition technologies by providing a large volume of annotated data. These technologies have the potential to enhance various applications, such as mental health monitoring, virtual assistants, customer support, and communication devices for people with disabilities.

Discussion of Biases

During the dataset cleaning process, efforts were made to balance the database concerning the number of samples for each dataset, emotion distribution (with a greater focus on primary emotions and less on secondary emotions), and language distribution. However, biases may still be present.

Other Known Limitations

No specific limitations have been identified at this time.

Additional Information

Dataset Curators

Gabriel Giangi - Concordia University - Montreal, QC Canada - gabegiangi@gmail.com

Licensing Information

This dataset can be used for research and academic purposes. For commercial purposes, please contact gabegiangi@gmail.com.

Citation Information

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Peng, Z., Li, X., Zhu, Z., Unoki, M., Dang, J., & Akagi, M. (2020). Speech emotion recognition using 3d convolutions and attention-based sliding recurrent networks with auditory front-ends. IEEE Access, 8, 16560-16572.

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Vryzas, N., Matsiola, M., Kotsakis, R., Dimoulas, C., & Kalliris, G. (2018, September). Subjective Evaluation of a Speech Emotion Recognition Interaction Framework. In Proceedings of the Audio Mostly 2018 on Sound in Immersion and Emotion (p. 34). ACM.

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Contributions

Gabriel Giangi - Concordia University - Montreal, QC Canada - gabegiangi@gmail.com