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On Design and Implementation of an Embedded Automatic Speech Recognition System

11 years 4 months ago
On Design and Implementation of an Embedded Automatic Speech Recognition System
We present a new design of an Embedded Speech Recognition System. It combines the aspects of both hardware and software design to implement a speaker dependent, isolated word, small vocabulary speech recognition system. The feature extraction is based on modified Mel-scaled Frequency Cepstral Coefficients (MFCC) and template matching employs Dynamic Time Warping (DTW). A novel algorithm has been used to improve the detection of start of a word. The hardware is built around the industry standard TMS320LF2407A DSP. The board is designed to serve as a general purpose DSP development board for the 24X series of TI DSPs. It contains, apart from the DSP, the external SRAM, FLASH, ADC interface, I/O interfacing blocks and JTAG interface. Both the hardware and the software have been designed concurrently, with a view to achieve high-speed recognition with maximum accuracy in minimum power and making the device portable. The proposed solution is a low-cost, high-performance, scalable alternati...
Sujay Phadke, Rhishikesh Limaye, Siddharth Verma,
Added 01 Dec 2009
Updated 01 Dec 2009
Type Conference
Year 2004
Where VLSID
Authors Sujay Phadke, Rhishikesh Limaye, Siddharth Verma, Kavitha Subramanian
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