General Purpose

The Signal Processing Information Base (SPIB) serves as a repository of datasets for both signal processing researchers and applications engineer, seeking to provide suitable ways for testing algorithms, systems, and applications under more realistic operating conditions. Particularly, SPIB contains datasets (arising from real-world measurements) and links to other repositories, all of which are relevant to research and development in signal processing.

If you need assistance, wish to report a problem, or want to update information, send an email to

Data repository has been reformatted into Matlab (.mat) format; however, please feel free to contact us if you need other file-types.

Historical Remarks

Dating back to 1993, the Signal Processing Information Base (SPIB) was originally a project sponsored by the Signal Processing Society (SPS) and the National Science Foundation (NSF) having the goal to provide a public repository of information related to signal processing researches. During approximately 20 years, this website was hosted at Rice University under the supervision of Dr. Don H. Johnson (the creator of this project). Recently, when such website becomes unavailable, we have contacted Dr. Johnson aiming to get a full backup of the website content (for further reference). Kindly, Dr. Johnson provided this backup, which was used to make all that content available again. Currently, the SPIB is been maintained by Circuits and Signal Processing Laboratory (LINSE) at Federal University of Santa Catarina.

Federal University of Santa Catarina (UFSC)

Since 1960, the UFSC has been participating in the economic, social, political and cultural development of the State and of the country. Throughout this period it has been working on preparing students to become highly skilled professionals, thus contributing to scientific progress and establishing itself as a niche of excellence, and being ranked as one of the best centers for higher education in Brazil.

Circuits and Signal Processing Laboratory (LINSE)

LINSE is a research unit of the Electrical Engineering Department of the Federal University of Santa Catarina (UFSC). Its activities include several research and design topics concerning Signal Processing and Circuits and Systems Projects. In the speech technology area, the main topics include speech codification, synthesis and recognition. For more details, please visit our website.