What is ToyADMOS?

ToyADMOS dataset is a machine operating sounds dataset of approximately 540 hours of normal machine operating sounds and over 12,000 samples of anomalous sounds collected with four microphones at a 48kHz sampling rate. The ToyADMOS dataset is designed for anomaly detection in machine operating sounds (ADMOS) research. We have collected normal and anomalous operating sounds of miniature machines by deliberately damaging their components. It is designed for three tasks of ADMOS: product inspection (toy car), fault diagnosis for fixed machine (toy conveyor), and fault diagnosis for moving machine (toy train). For more information, refer to the paper [1].


The dataset can be downloaded at


The baseline based on AutoEncoder (AE) is provided on the github.

[1] Yuma Koizumi, Shoichiro Saito, Noboru Harada, Hisashi Uematsu and Keisuke Imoto, "ToyADMOS: A Dataset of Miniature-Machine Operating Sounds for Anomalous Sound Detection," in Proc of Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA), 2019. Paper URL: