This corpus comprises 8,000 Chinese sentences uttered by 200 speakers of different dialects, ages and various educational levels, recorded over 2 channels. Speech samples are stored as a sequence of 16-bit 44.1kHz WAV for 12.21 hours of speech per channel. The total capacity of the data is 7.2 Gb. Each speaker read 40 items. Text files are stored in Unicode format. All data have been proofread manually. The corpus aims to be applied to the testing and telephone natural speech recognition system.