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An active window system to reduce the exterior noise sources, such as traffic noise and construction noise which enter rooms through open windows used for natural ventilation is proposed. The proposed system uses a feedforward control method for active noise control so as not to place the sensors and control sources inside the interior space of the building. For global noise reduction throughout the...
Techniques to estimate the time delay of arrival (TDOA) using the measurements of the acoustic signals by microphones have been studied in various fields such as the robot auditory system, teleconference system and speech recognition system. One common method of determining TDOA is to compute the cross correlation function. The Generalized Cross Correlation (GCC) method, which calculates the correlation...
A variety of methods for sound source localization have been developed recently and applied to several applications such as surveillance, auditory scene analysis for hearing aids, robot auditory system and so on. In the previous work, we proposed the sound source localization using the spatially mapped GCC functions based on TDOA under the single source assumption for robot auditory system. However,...
Multi-bit vertical structure NAND (VsNAND) flash memories with 32-paired FinFET cell string have been successfully integrated for the first time. Its array integration issues regarding the sub-10 nm vertical structure fin could be solved by proper choices of isolation material, ion implantation, and word line patterning. VsNAND flash array cells with TANOS (TaN/Al2O3/SiN/SiOx/Si) charge trap structure...
While various methods for sound source localization have been developed, most of them utilize on the time difference of arrival (TDOA) between microphones or the measured head related transfer functions (HRTF). In case of a real robot implementation, the former has a merit of light computation load to estimate the sound direction but can not consider the effect of platform on TDOAs, while the latter...
Many different methods for sound source localization have been developed. Most of them mainly depend on time difference of arrival (TDOA) or analytic head related transfer functions (HRTF). In real implementation, since the direct path between a source and a sensor is interrupted by obstacles as like a head or body of robot, it has to be considered the number of sensors as well as their positions...
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