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Jinsoo Jeong

Doctor of Philosophy, (Information Engineering)
Study Completed: 2007
College of Sciences


Thesis Title
A Kepstrum Approach to a Real-Time Speech Enhancement.

Read article at Massey Research Online: MRO icon

Mr Jeong proposed a robust method for improved performance of real-time speech enhancement and noise cancellation in a real reverberant environment. Hepresented the kepstrum approach, based on a fundamental theory of kepstrum analysis, and its application to a speech enhancement method. Kepstrum analysis was applied to system identification of unknown acoustic transfer functions between two microphones, with a modified application technique from conventional adaptive noise cancelling and beamforming. This kepstrum method provided a mathematical construct with FFT based processing and was independent of acoustic path model order. The research has shown that the front-end application of the kepstrum method to speech enhancement methods provides an improved performance in speech enhancement and noise cancellation with several favourable effects.

Dr Tom Moir
Dr Mohammad Abdurrashid