Takuya Yoshioka

Title: Takuya Yoshioka: Innovator in Speech Recognition Technology

Introduction

Takuya Yoshioka is a prominent inventor based in Kyoto, Japan. He has made significant contributions to the field of speech recognition technology. With a total of 6 patents to his name, Yoshioka's work focuses on enhancing the accuracy and efficiency of speech recognition systems.

Latest Patents

Yoshioka's latest patents include an acoustic model training method, a speech recognition method, an acoustic model training apparatus, a speech recognition apparatus, an acoustic model training program, and a speech recognition program. The acoustic model training apparatus is designed to extract speech features that represent speech characteristics. It calculates an acoustic-condition feature that represents the acoustic condition of the speech data using a neural network-based acoustic-condition calculation model. This apparatus generates an adjusted parameter that is an acoustic model parameter, which is then updated based on the speech features.

Additionally, Yoshioka has developed a spatial correlation matrix estimation device, method, and program. This technology calculates an observation feature value vector based on signals recorded at different positions in environments with target sound sources and background noise. It estimates masks associated with both the target sound sources and background noise, allowing for the calculation of spatial correlation matrices for both elements.

Career Highlights

Yoshioka is currently employed at Nippon Telegraph and Telephone Corporation, where he continues to innovate in the field of speech recognition. His work has been instrumental in advancing the capabilities of acoustic model training and spatial correlation matrix estimation.

Collaborations

Some of Yoshioka's notable coworkers include Tomohiro Nakatani and Keisuke Kinoshita. Their collaborative efforts contribute to the ongoing development of cutting-edge technologies in speech recognition.

Conclusion

Takuya Yoshioka is a key figure in the realm of speech recognition technology, with a focus on improving acoustic model training and spatial correlation estimation. His innovative patents and contributions continue to shape the future of this field.