Browsing Faculty of Design and Creative Technologies (Te Ara Auaha) by Author "Moir, TJ"

Now showing items 1-9 of 9

    • A kepstrum approach to filtering, smoothing and prediction with application to speech enhancement

      Moir, TJ; Barrett, JF (The Royal Society London, 2003)
      A kepstrum (or complex-cepstrum) approach to minimum-phase Wiener filtering of stationary scalar processes is proposed and solved for the case of signal plus coloured noise, where the noise possibly includes a white-noise ...

    • A unified approach to multivariable discrete-time filtering based on the Wiener-theory

      Barrett, JF; Moir, TJ (Institute of Mathematics ASCR, 1987)
      Several theories of discrete-time optimal filtering are in current use but the relationships between these theories is not always appreciated. By using a slightly modified form of the Wiener theory, a unification of the ...

    • Automatic variance control and variance estimation loops

      Moir, TJ (Springer Verlag (Germany) (for Birkhäuser Boston), 2001)
      A closed-loop servo approach is applied to the problem of controlling and estimating variance in nonstationary signals. The new circuit closely resembles, but is not the same as, automatic gain control, which is common in ...

    • Automotive 3-microphone noise canceller in a frequently moving noise source environment

      Moir, TJ; Qi, T (World Academy of Science, Engineering and Technology (WASET), 2007)
      A combined three-microphone voice activity detector (VAD) and noise-canceling system is studied to enhance speech recognition in an automobile environment. A previous experiment clearly shows the ability of the composite ...

    • Improved language modeling for English-Persian statistical machine translation

      Moir, TJ; Mohaghegh, M; Sarrafzadeh, A (Chinese Information Processing Society of China, 2010)
      As interaction between speakers of different languages continues to increase, the everpresent problem of language barriers must be overcome. For the same reason, automatic language translation (Machine Translation) has ...

    • An Overview of Applications and Advancements in Automatic Sound Recognition

      Sharan, RV; Moir, TJ (Elsevier, 2016)
      Automatic sound recognition (ASR) has attracted increased and wide ranging interests in recent years. In this paper, we carry out a review of some important contributions in ASR techniques, mainly over the last one and a ...

    • Real-time acoustic beamforming on a PC

      Moir, TJ (World Scientific and Engineering Academy and Society., 2006)
      A two-microphone adaptive beamformer is implemented in real-time on a personal computer. The language used is National Instruments LabView. This data-flow language is ideally suited for the rapid prototyping of this kind ...

    • The trapezoidal method of steepest-descent and its application to adaptive filtering

      Moir, TJ (Bentham Science Publishers, 2010)
      The method of steepest-descent is re-visited in continuous time. It is shown that the continuous time version is a vector differential equation the solution of which is found by integration. Since numerical integration has ...

    • Vision tracking and voice-controlled foyer service robot

      Moir, TJ; Almanji, A; Chitty, C; Chang, J (Massey University, 2010)
      Machine –human interaction based on voice control and vision tracking features is one of world main focuses in the robotic industry. The integration of voice control and vision tracking features is expected to deliver its ...