A 1000-hour Mandarin-English Mixed Recognition Database


A 1000-hour Mandarin-English Mixed Recognition Database has been released. It is recorded in real environments using 16 kHz sampling frequency and 16-bit quantization accuracy mono PCM format.

2700 native Mandarin speakers (1:1 gender distribution) with their respected dialectal characteristics (including Northern Mandarin ,South-western Mandarin, Cantonese, Wu Dialect, Min Dialect, Gan Dialect and Xiang Dialect) are carefully selected. The corpus are collected using multiple smart phone models in both indoor and outdoor environments.  

During the corpus design and collection process, we have formed an efficient team with high standard capabilities. This leads to the great success for our corpus to have below 5% sentence-wise error, which is dominating in the current market.

This corpus can be used for training and testing the speech recognition system, as well as speech analysis. It has been well-acknowledged by industry as a corpus with high speech quality and recognition accuracy.