De-Yu Wang

Title: De-Yu Wang: Innovator in Sinusoidal Transform Vocoder Technology

Introduction

De-Yu Wang is a notable inventor based in Taoyuan, Taiwan. He has made significant contributions to the field of audio coding, particularly through his innovative work on sinusoidal transform vocoders. His expertise and creativity have led to advancements that enhance audio quality while minimizing bit rates.

Latest Patents

Wang holds a patent titled "Method of amplitude coding for low bit rate sinusoidal transform vocoder." This invention provides a sinusoidal transform vocoder based on the Bark spectrum, which is designed to deliver high-quality audio at low bit rates. The method involves transforming a harmonic sine wave from a frequency spectrum to a perception-based Bark spectrum. It also incorporates equal-loudness pre-emphasis and a transformation of loudness to subjective loudness. The process culminates in the use of pulse code modulation (PCM) to quantize the subjective loudness, ultimately allowing for the synthesis of the Bark spectrum to obtain the excitation pattern.

Career Highlights

De-Yu Wang is affiliated with the Industrial Technology Research Institute, where he continues to push the boundaries of audio technology. His work has not only contributed to the field but has also positioned him as a key figure in the development of efficient audio coding methods.

Collaborations

Wang has collaborated with esteemed colleagues such as Wen-Whei Chang and Hwai-Tsu Chang. Their combined expertise has fostered an environment of innovation and creativity, leading to advancements in their respective fields.

Conclusion

De-Yu Wang's contributions to the field of audio coding through his patented methods exemplify the impact of innovative thinking in technology. His work continues to influence the development of high-quality audio solutions.