Interactive controller for audio object localization based on spatial representative vector operation

Abstract-In this paper, we propose a new interactive controller for audio object localization based on spatially representative vector operations on a stereo mixed source. First, we developed the interactive controller, which is equipped with a capacitive touchscreen panel so that the listener can intuitively operate audio objects displayed on the touchscreen panel with a touch pen. Next, we assessed the perceptual effects of localization and the sound quality of an audio object after performing individual operations to verify the operation of the interactive controller via a subjective evaluation. The results of the experiments clarify that the interactive controller enables the listener to change the gain and the localization of audio objects without sound degradation if the gain operation is not extreme

Lack of association of genetic variation in chromosome region 15q14-22.1 with type 2 diabetes in a Japanese population

<p>Abstract</p> <p>Background</p> <p>Chromosome 15q14-22.1 has been linked to type 2 diabetes (T2D) and its related traits in Japanese and other populations. The presence of T2D disease susceptibility variant(s) was assessed in the 21.8 Mb region between <it>D15S118 </it>and <it>D15S117 </it>in a Japanese population using a region-wide case-control association test.</p> <p>Methods</p> <p>A two-stage association test was performed using Japanese subjects: The discovery panel (Stage 1) used 372 cases and 360 controls, while an independent replication panel (Stage 2) used 532 cases and 530 controls. A total of 1,317 evenly-spaced, common SNP markers with minor allele frequencies > 0.10 were typed for each stage. Captured genetic variation was examined in HapMap JPT SNPs, and a haplotype-based association test was performed.</p> <p>Results</p> <p>SNP2140 (rs2412747) (<it>C/T</it>) in intron 33 of the ubiquitin protein ligase E3 component n-recognin 1 (<it>UBR1</it>) gene was selected as a landmark SNP based on repeated significant associations in Stage 1 and Stage 2. However, the marginal <it>p </it>value (<it>p </it>= 0.0043 in the allelic test, OR = 1.26, 95% CI = 1.07–1.48 for combined samples) was weak in a single locus or haplotype-based association test. We failed to find any significant SNPs after correcting for multiple testing.</p> <p>Conclusion</p> <p>The two-stage association test did not reveal a strong association between T2D and any common variants on chromosome 15q14-22.1 in 1,794 Japanese subjects. A further association test with a larger sample size and denser SNP markers is required to confirm these observations.</p

<Poster Session>Classification of stroke pattern of dugongs in Dungonab Bay, Sudan by using an acoustic data logger

19–22 May 2022 Kyoto, JapanWe conducted a series of acoustic tagging of dugongs to observe individual behavior. A male dugong was equipped with an underwater recorder, a GPS logger, a VHF transmitter, and a time-scheduled releaser in June, 2012, in Dungonab Bay in Sudan. Underwater sound, location, temperature and depth of tagged dugongs were obtained. A male dugong spent 96 % of their time in shallow waters ( 20m) with the deepest dive at 40 m. Sounds of the dugong's tail stroke was detected by taking energy sum between 0 - 500 Hz at 50-ms interval. Distribution of inter-stroke interval showed tri-modal distribution with each peak characterized by acoustic energy of the tail stroke. Hence the stroke pattern of the dugong was categorized into 1) Slow and strong strokes and 2) weak and fast strokes. The acoustic energy and intervals of the tail stroke can therefore be assumed as quantity of motion. The quantity of motion decreased during the night and increased before dawn and dusk. This study suggests that daily energy expenditure by a dugong can be estimated by using the acoustic data loggers

Mesquite Risk Mapping and Assessment in Tokar Delta-Eastern Sudan

Tokar Delta is a name given to a small delta of approximately 161,000 hectares situated in the southern area of the Red Sea in Eastern Sudan. Beginning of 1980, mesquite species (Prosopis chilensis & Prosopis juliflora) were introduced to Tokar area to be planted as a shelterbelt for the city Tokar, but after while; it spread out to the delta area and became an invasive plant to the agricultural lands and along Khor Barak banks. Nowadays mesquite covers more than half of the delta area, decreased the cultivable land in the delta and created risk to the environment and livelihood of the people in the area. Therefore, this research study was an attempt to map and assess mesquite risk in the Tokar Delta and further provide guidance for possible solutions, control and management. The tools and methods used for the study were different multi-temporal satellite imagery, ground field survey and risk assessment models. The results showed that mesquite has increased by more than 50% during the period 1989-2001, while the expansion was about 10% during 2001-2013. Moreover, the assessment indicated that mesquite risk has many aspects ranging from management to environment and socio-economic

Automatic Music Thumbnailing Using Localization Information of Audio Object

APSIPA Annual Summit and Conference 2010, December 14-17, 2010, Biopolis, Singapore."In this study, in order to automatically generate thumbnail music that has a main part of the original tune, we propose a new estimation method of structure changes in stereo tunes based on localization information. The proposed method can estimate the main parts of the music tune by analyzing specific timing when localization information changes under the assumption that the changing time of the localization approximately corresponds to timing of the music structure change. We evaluate the effectiveness of the proposed method by the objective assessment in this paper. The experimental result shows that the proposed method can detect correct timing of music structure changes with more than 70 percent accuracy rate.