Array model interpolation and subband iterative adaptive filters applied to beamforming-based acoustic echo cancellation.

In this paper, an evolutionary exposition is given in regard to the enhancing strategies for acoustic echo cancellers (AECs). A fixed beamformer (FBF) is utilized to focus on the near-end speaker while suppressing the echo from the far end. In reality, the array steering vector could differ considerably from the ideal freefield plane wave model.

Development of nutrient databases for epidemiological studies in Taiwan.

The nutrient and related databases are essential for calculating intake values in epidemiological studies. To suit our research needs, we have developed an integrated management system not only for processing individual dietary questionnaires including 24-hour recalls, food records and Chinese food frequency questionnaires (CFFQ), but also for maintaining and tracking updated food composition databases. The recall and record calculation system (Normal University Food and Nutrient Calculation System: NUCAL system) considers date of recall/record, number of days and meal separations.