• Audio Source Separation (Used Auditory Scene Analysis to identify sources, and extracted each sound with Independent Component Analysis)
• MPEG Committee (Represented the University of Miami at MPEG Meetings)
  • Conducted Listening Tests for Spatial Audio Coding
  • Worked with others to define standards and develop an audio library
• Adaptive Feedback Reduction (Implemented an adaptive filter that removes acoustic feedback)
• Comparison of Cochlear Filter Banks (Compared Lyon's auditory filterbank with the ERB model. Note: I now realize there were several problems with this study. For instance, the 3 things I was comparing were very different things and probably should never have been compared in this way.)
• MPEG Psychoacoustic Model 2 for Matlab (Click HERE for the code.)
• Audio Steganography (Hiding data in an audio signal... included noise shaping and lossless compression)

Undergrad Projects:

• Audio Spatializer for Headphones (My Senior Design Project- Dolby Digital, Dolby ProLogic II, Dolby Headphone... all on a Motorola DSP56367)
• Perceptual Audio Coding (Learning to implement coders like MP3, AAC, AC3, etc.)
• Psychoacoustics (Imlementing various principles of psychoacoustics in Matlab)
• Audiovisual Speech Recognition in Automotive Environment (A project at The Beckman Institute that used 2 cameras and 2 microphones to enhance speech recognition)
• Automotive Hands-Free Telephones (echo-cancellation, noise-reduction, objective analysis of audio quality)
• Surround-Sound Headphones Used MIT's HRTF data to create a virtual 3D environment
• Using FFT's as Band-Pass Filters
• Determing Loudspeaker Response (reference: C.A. Ewaskio and O.K. Mawardi (1950), "Electroacoustic Phase Shift in Loudspeakers." Journal of the Acoustical Society of America 22(4):444-448.)
• Sound Analysis/Synthesis Techniques (reference: R.J. McAulay and T.F. Quatieri (1986), "Speech Analysis/ Synthesis Based on a Sinusoidal Representation." IEEE Transactions. ASSP 34(4):744-754.)
• Pitch Perception (reference: J.C.R. Licklider, "A Duplex Theory of Pitch Perception." Experientia VII(4):128-134.)
• Basic Audio Coding (reference: Noll, "MPEG Digital Audio Coding," IEEE Signal Processing Magazine, Sept. '97.)
• Advanced Coding Techniques (includes Water-Filling Bit Allocation and Sub-Band Quantization Using Signal-Mask Ratio)
• Speech Recognition (reference: Steven P. Davis and Paul Mermelstein, "Comparison of Parametric Representations for Monosyllabic Word Recognition in Continuously Spoken Sentences." IEEE Transactions ASSP 28(4):357-366.)
• Adaptive Filtering