JIANG Wen-jian, WEI Gang. A New Method for Noisy Speech Recognition Based on Multiple Timescale and Hybrid Sub Band[J]. Acta Electronica Sinica, 2001, 29(S1): 1829-1832.
JIANG Wen-jian, WEI Gang. A New Method for Noisy Speech Recognition Based on Multiple Timescale and Hybrid Sub Band[J]. Acta Electronica Sinica, 2001, 29(S1): 1829-1832.DOI:
We present a new method for noisy speech recognition
which combines multiple timescale analysis with sub-band method.In the new method
sub-band features and full band features are extracted in different timescales
then combined at probabilistic layer.The method has robustness of both multiple timescale method and sub band method.Differential method is also introduced to further enhance the robustness of the features.Evaluated by a task on E-SET database under white noise from NoiseX92 noise database
the new method has higher recognition accuracy than conventional multiple timescale method on both noisy speech and clean speech.