The data includes non-speech sounds recorded in an anechoic room, reconstructed signals in various rooms, impulse responses for a microphone array, speech data recorded with the same array, and recordings of background noises. It is intended for use when simulating sound scenes. It was developed by the Real Acoustic Environments Working Group of the Real World Computing Partnership (RWCP). The data was recorded from 1998 to 2000.

You can cite the data using the following BibTeX entry:

@inproceedings{nakamura2000acoustical,
  title={Acoustical Sound Database in Real Environments for Sound Scene Understanding and Hands-Free Speech Recognition.},
  author={Nakamura, Satoshi and Hiyane, Kazuo and Asano, Futoshi and Nishiura, Takanobu and Yamada, Takeshi},
  booktitle={LREC},
  year={2000}
}