Brad Chen Email & Phone Number

 Boost the team's capacity by developing new features and improving problem-solving techniques Utilizing the omni or differential microphone array (DMA), small beam beamforming is employed in DSP and NB platforms, encompassing methodology, performance evaluation, and implementation DMA-based post-EQ design (variable frequency response correction, support for various sampling rate and angle designs) for subjective, stereo, and HiFi recording Introduce new product lines gradually,… Show more  Boost the team's capacity by developing new features and improving problem-solving techniques Utilizing the omni or differential microphone array (DMA), small beam beamforming is employed in DSP and NB platforms, encompassing methodology, performance evaluation, and implementation DMA-based post-EQ design (variable frequency response correction, support for various sampling rate and angle designs) for subjective, stereo, and HiFi recording Introduce new product lines gradually, such as PCNB and recording devices with DMA Coordinated resources to accelerate the issue-solving and control schedule of the project Engaged with the customer to evaluate new features and provide solutions or prototypes Improved and optimized the howling detection algorithm to decrease the false alarm Experience with implementing Neural Networks for speech enhancement using the face mask or in the noisy environment Built the TensorFlow Lite Micro interface function, which can be called inside the position-independent library based on HiFi DSP Show less

 Improved and redesigned voice processing algorithms, such as beamforming, echo cancellation and noise suppression Designed and developed the configurable small microphone array to improve the SNR of signal Implemented the fixed point and hexagon intrinsic library to optimize the MIPS of DSP platform Implemented the frame-based and frequency-based debug tools for AE tuning and troubleshooting  Assisted performance tuning and evaluation to satisfy Vodafone specification and… Show more  Improved and redesigned voice processing algorithms, such as beamforming, echo cancellation and noise suppression Designed and developed the configurable small microphone array to improve the SNR of signal Implemented the fixed point and hexagon intrinsic library to optimize the MIPS of DSP platform Implemented the frame-based and frequency-based debug tools for AE tuning and troubleshooting  Assisted performance tuning and evaluation to satisfy Vodafone specification and customer requirement Show less

New Taipei City, Taiwan

 Responsible for software design, digital signal processing, vital sign signal processing, algorithm development and optimization algorithm Implemented orientation estimation algorithm using inertial and inertial/magnetic sensors for motion capture Analyzed configurations of vital sign signals (ECG, PPG, GSR, skin temperature) to design wearable devices  Implemented ECG-PPG and PPG-only-based algorithm to detect Blood pressure Developed the feature extraction and… Show more  Responsible for software design, digital signal processing, vital sign signal processing, algorithm development and optimization algorithm Implemented orientation estimation algorithm using inertial and inertial/magnetic sensors for motion capture Analyzed configurations of vital sign signals (ECG, PPG, GSR, skin temperature) to design wearable devices  Implemented ECG-PPG and PPG-only-based algorithm to detect Blood pressure Developed the feature extraction and classification algorithm to detect the emotion state Designed and developed active learning methods to improve the recognition rate of the emotion algorithm Developed the heart rate variability algorithm to detect physical and mental stress level Developed test procedures, test setup and software for final production tests as well as IRB certification tests Assisted to design audio signal processing for applications of sleep quality detection and baby monitor Show less

Doctor Of Philosophy (Phd), Power Mechanical Engineering, Microphone Signal Processing, Audio Dsp Design, Algorithms Of Beamforming, Adaptive Filter Design

 Dissertation titled “Acoustic array signal processing with application examples in mechanical engineering”  Published 3 US patents, 5.

Master'S Degree, Mechanical Engineering, Medical Image Processing, Digital Image Processing

Dissertation titled “MRI Image of knee cartilage boundary identification and three-dimensional model reconstruction"