Title :
Real time speech recognition using IIR digital filters implemented on an embedded system
Author :
Kamdar, Bhavin ; Mirchandani, Bhisham ; Shah, Dhaval ; Rao, Y.S.
Author_Institution :
Electron. & Telecommun. Dept., Univ. of Mumbai, Mumbai, India
Abstract :
In this paper we implemented real time speech processing and recognition using Infinite Impulse Response (IIR) digital filters. We used an array of 7 digital bandpass filters to filter out various frequencies and recognize each word by its frequency spectra. The system is implemented on a low cost AVR architecture microcontroller which also explored the use of simple architectures as real time DSP processors. This opens up new vistas for the AVR applications and also provides a low cost solution for small and medium DSP applications.
Keywords :
IIR filters; band-pass filters; digital signal processing chips; embedded systems; microcontrollers; speech processing; speech recognition; IIR digital filters; digital bandpass filters; embedded system; frequency filtering; frequency spectra; infinite impulse response digital filters; low cost AVR architecture microcontroller; real time DSP processors; real time speech processing; real time speech recognition; small and medium DSP applications; Band pass filters; Finite impulse response filter; Hidden Markov models; IIR filters; Speech; Speech recognition; Infinite Impulse Response (IIR); Speech recognition; correlation; digital filter; template matching;
Conference_Titel :
Communication, Information & Computing Technology (ICCICT), 2012 International Conference on
Conference_Location :
Mumbai
Print_ISBN :
978-1-4577-2077-2
DOI :
10.1109/ICCICT.2012.6398179
