Company Filing History:
Years Active: 2003-2004
Title: Meir Zibulski: Innovator in Speech Coding and Pitch Estimation
Introduction
Meir Zibulski is a notable inventor based in Haifa, Israel. He has made significant contributions to the field of speech processing, particularly in low bit rate speech coding and pitch estimation techniques. With a total of 2 patents, Zibulski's work has advanced the capabilities of speech recognition and audio signal processing.
Latest Patents
Zibulski's latest patents include a method and system for low bit rate speech coding with speech recognition features. This innovative method encodes a digitized speech signal to generate data that can be decoded as speech. The process involves converting the speech signal into feature vectors using Mel-frequency Cepstral coefficients (MFCC) techniques. The method computes pitch values at successive time instances, compressing acoustic vectors to derive a bit stream. A decoder then reverses this operation, allowing for speech reproduction and playback. Additionally, speech recognition is facilitated using the decompressed feature vectors without compromising accuracy or introducing computational overhead.
Another significant patent is the fast frequency-domain pitch estimation method. This technique estimates the pitch frequency of an audio signal by computing transforms of the signal to the frequency domain over specified time intervals. By analyzing the line spectrum of the signal, Zibulski's method computes a utility function that indicates the compatibility of the spectrum with candidate pitch frequencies. This innovative approach enhances the accuracy of pitch frequency estimation in speech signals.
Career Highlights
Meir Zibulski is currently associated with International Business Machines Corporation (IBM), where he continues to develop cutting-edge technologies in speech processing. His work has garnered attention for its practical applications in various industries, including telecommunications and artificial intelligence.
Collaborations
Zibulski has collaborated with notable colleagues such as Dan Chazan and Ron Hoory. Their combined expertise has contributed to the advancement of innovative solutions in the field of audio processing.
Conclusion
Meir Zibulski's contributions to speech coding and pitch estimation have significantly impacted the field of audio processing. His innovative patents and ongoing work at IBM continue to push the boundaries of technology in speech recognition and processing.