FPGA implementation of spectral subtraction for automotive speech recognition
Whittington, Jim, Deo, Kapeel, Kleinschmidt, Tristan, & Mason, Michael W. (2009) FPGA implementation of spectral subtraction for automotive speech recognition. In IEEE Workshop on Computational Intelligence in Vehicles and Vehicular Systems, 30 March - 2 April 2009, Nashville, TN.
The use of speech recognition in noisy automotive environments requires the application of speech enhancement
algorithms to improve recognition performance. Deploying
these enhancement techniques necessitates significant engineering to ensure algorithms are realisable in electronic hardware. This paper describes advances in porting the popular spectral subtraction algorithm to a Spartan-3A DSP field-programmable gate array (FPGA) device suitable for integration in automotive environments. Resource analysis shows the final design uses only 13% of the total available general logic resources making it suitable for integration with other in-car devices on a single FPGA. Speech recognition experiments have been used to verify the effectiveness of the FPGA implementation for in-car speech recognition in comparison with an equivalent floating-point implementation.
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|Item Type:||Conference Paper|
|Keywords:||Field programmable gate array, road vehicles, speech recognition, speech enhancement|
|Subjects:||Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Signal Processing (090609)|
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Circuits and Systems (090601)
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering|
Past > Institutes > Information Security Institute
Past > Schools > School of Engineering Systems
|Copyright Owner:||Copyright 2009 IEEE|
|Deposited On:||08 May 2009 10:07|
|Last Modified:||08 Apr 2013 15:09|
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