Abstract
This article reports databases for conversational speech translation research built by ATR Interpreting Telecommunications Research Laboratories. It first reports a bilingual travel conversation database and a Japanese monolingual travel conversation database for speech translation research. Second, the article goes on to a Japanese speech database for speaker-independent continuous speech recognition research. This database contains dialogues and read speech uttered by about 4,000 speakers covering all regions of Japan. In addition, we mention another speech database for research purpose, which contains read speech that was uttered by professional announcers and narrators and that was given precise labels of speech segments. All of these databases have already been released outside of ATR and used for research purposes at many research institutes and universities.