The National Speech Corpus (NSC) is a locally accented and contextualized repository of audio, accompanying transcripts and lexicon in the English Language. It is being released as part of an effort to improve the accuracy of Automatic Speech Recognition (ASR) technologies for Singapore. The current release version is v1.0 History of release: v1.0 - 2000 hours of corpora (1000 hours phonetically balanced, 1000 hours of local context)