Intelligent dashboard with speech enhancement
Abdul Wahab, Tan Eng Chong, H. Abut · 2002
The increasing demand for mobile multimedia communication prompted extensive studies on implementing an effective and optimum way to communicate in the vehicular environment. The proposed system covers the analysis and cancellation/suppression of various noise in a vehicular environment ranging from engine noise, wind noise to road noise. In addition it is critical to also understand the echoes that can be generated due to the effect of a vehicle chamber. The compressed speech uses the LPC algorithm in the vocoder and this worsens the speech clarity. Hence, the intelligent dashboard would require microphone arrays and a multitasking system to handle the vast processing requirement. Numerous asynchronous scheduling tasks necessitate the architecture to be reconfigurable. A cost-effective technology for this would be to employ a powerful digital signal processing (DSP) sub-system equipped with the necessary support electronics.