This paper describes a template-matching-based system, called AdaMast, that detects onset times of the bass drum, snare drum, and hi-hat cymbals in polyphonic audio signals of popular songs. AdaMast uses the power spectrograms of the drum sounds as templates. However, there are two main problems in transcribing drum sounds in the presence of other sounds. The first problem is that actual drum-s...

This paper presents a highly functional audio player, called Drumix, that allows a listener to control the volume, timbre, and rhythmic patterns (drum patterns) of bass and snare drums within existing audio recordings in real time. A demand for active music listening has recently emerged. If the drum parts of popular songs could be manipulated, listeners could have new musical experiences by fr...

The boiler drum process is a nonlinear, complex and multivariable process which includes significant time delay. Therefore, the control on the water level in the drum is not easy and ideal. The first objective of this paper is to model the drum water level referring to 210 MW power unit for Nassiriyah thermal power plant. The second objective is to study the water level controller operation wit...

Longitudinal chromatic aberration (LCA) causes short wavelengths to be focused in front of long wavelengths. This chromatic signal is evidently used to guide ocular accommodation. We asked whether chick eyes exposed to static gratings simulating the chromatic effects of myopic or hyperopic defocus would "compensate" for the simulated defocus. We alternately exposed one eye of each chick to a si...

A case of closed injury to the cervical portion of the trachea, caused by a wheat-threshing machine, is reported. The patient presented with extensive subcutaneous emphysema, but without any respiratory distress. The unique problem faced during the management of an anterolateral tear of the trachea is highlighted.

Corn is a crucial crop and has vital application value in many aspects of our lives. Mechanical grain harvesting the developing direction corn technology, with threshing as its most imperative procedure. The quality device harvester major influence on damage rate, loss other parameters. Therefore, it great significance to effectively lower rate process threshing. This review presents research p...

An experimental study comparing different user interfaces for a virtual drum is reported. Virtual here means that the drum is not a physical object. 16 subjects played the drum on five different interfaces and two metronome patterns trying to match their hits to the metronome clicks. Temporal accuracy of the playing was evaluated. The subjects also rated the interfaces subjectively. The results...

A cowpea thresher that uses petrol engine was developed to overcome drudgery of threshing with manually operated and also replace motorized cannot be used in areas where there is no supply electricity. The performance tests on the machine were replicated three times using 10000, 8000 6000 grams kannanado pods at cylinder speed 700, 800 900 rpm each moisture contents 11.05%, 13.65% 14.75% respec...

A drum sound equalizer, called INTER:D, is described that enables a listener to control the volume and timbre of bass and snare drum sounds in commercial compact-disc recordings. Although the characteristics of the drum sounds are often closely related to the impression made by a musical piece, conventional graphic equalizers cannot adjust their characteristics because they have volume sliders ...