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Teaching Speech and Audio Processing Implementations Using LabView Program and DAQ Boards

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Conference

2013 ASEE Annual Conference & Exposition

Location

Atlanta, Georgia

Publication Date

June 23, 2013

Start Date

June 23, 2013

End Date

June 26, 2013

ISSN

2153-5965

Conference Session

Laboratory Experiences in Signal Processing and Controls

Tagged Division

Division Experimentation & Lab-Oriented Studies

Page Count

13

Page Numbers

23.1150.1 - 23.1150.13

Permanent URL

https://peer.asee.org/22535

Download Count

137

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Paper Authors

biography

Jean Jiang Purdue University, North Central

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DR. JEAN JIANG is currently with the College of Engineering and Technology at Purdue University North Central in Westville, Indiana. Dr. Jiang has taught analog signal processing, digital signal processing, and control systems for a number of years.
Dr. Jiang is a member of the Institute of Electronic and Electronic Engineers (IEEE). Her principal research areas are in digital signal processing, adaptive signal processing, and control systems. She has published a number of papers in these areas. She has co-authored two textbooks: "Digital Signal Processing: Fundamentals and Applications", Second Edition, Elsevier, 2012 and "Analog Signal Processing and Filter Design", Linus Publications, 2009.

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biography

Li Tan Purdue University, North Central

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DR. LI TAN is currently with the College of Engineering and Technology at Purdue University North Central, Westville, Indiana. He received his Ph.D. degree in Electrical Engineering from the University of New Mexico in1992.
Dr. Tan is an IEEE senior member. His principal technical areas include digital signal processing, adaptive signal processing, active noise and vibration control, data compression and digital communications. He has published a number of papers in these areas. He has authored and co-authored two textbooks: Digital Signal Processing: Fundamentals and Applications, Elsevier/Academic Press, Second Edition, 2013; and Analog Signal Processing and Filter Design, Linus Publications, 2009. He has served as associate editors for the International Journal of Engineering Research and Innovation and the International Journal of Modern Engineering.

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Abstract

Teaching Speech and Audio Processing Implementations Using LabView program and DAQ boardsAbstract We present our pedagogy for teaching speech and audio processing implementations using LabView program and DAQ boards. In the Electrical and Computer Engineering Technology (ECET) curriculum, the LabView program and DAQ board data acquisition have been used as a popular platform for teaching a real-time DSP (digital signal processing) course in the junior year. This course is the second signal processing course which is offered in electrical and computer engineering technology (ECET) program according to the current DSP industry trend and student interests in their career development. The course has a significant component on real- time filtering applications. The pre-requisite includes student working knowledge and skills of Laplace transform, Fourier series, Fourier transform, and different types of analog active filter design. After completing the course, students not only become familiar with MATLAB and LabView software development tools, but also gain the real-time signal processing experience. They are able to design the low-pass and band-pass filters and then program them using MATLAB and LabView software, and apply the software and hardware interface for real speech applications. Therefore, in this paper, we first proposed a comlete DSP platform, which consists of an audio amplifier, an analog low-pass filter, a DAQ board interface circuit, and a DSP software to perform the real-time data processing. Using the proposed DSP platform, we present our instructional techniques for digital filter implementations in real-time processing. The student survey results show that the adoption of LabView and DAQ boards to teach DSP and digital filter design is a learning effective tool.References1. L. Tan, Digital Signal Processing: Fundamentals and Applications. Elsevier/Academic Press, 2008.2. L. Tan and J. Jiang, A Simple DSP Laboratory Project for Teaching Real-Time Signal Sampling Rate Conversions, the Interface Technology Journal, Vol. 9, No. 1, Fall 2008.3. W. Gan, S. Kuo, “Teaching DSP Software Development: From Design to Fixed-Point implementations,” IEEE Trans. on Education, vol. 49, issue, 1, pp. 122-131, February 2006.4. L. Tan, J. Jiang, “Teaching Advanced Digital Signal Processing with Multimedia applications in Engineering Technology Programs,” ASEE Annual Conference, June 2009.5. Ifeachor, Emmanuel and Jervis, Barrie. Digital Signal Processing, A Practical Approach, Prentice-Hall Publishing, 2002.6. de Vegte, Joyce Van. Fundamentals of Digital Signal Processing, Prentice-Hall Publishing, 2002.

Jiang, J., & Tan, L. (2013, June), Teaching Speech and Audio Processing Implementations Using LabView Program and DAQ Boards Paper presented at 2013 ASEE Annual Conference & Exposition, Atlanta, Georgia. https://peer.asee.org/22535

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