The hyperfine mass splittings of baryons containing a heavy quark are derived at leading order in large N QCD. Hyperfine splittings either preserve or violate heavy quark spin symmetry. Previous work proves that the splittings which preserve heavy quark spin symmetry are proportional to J at order 1/N , where J is the angular momentum of the light degrees of freedom of the baryon. This work pro...

We describe new developments for model-based sound synthesis of plucked string instruments. The synthesis model is based on the extended Karplus–Strong algorithm. A new implementation approach where part of the excitation signal is modeled with interpolated low-frequency resonators and the decay part of the tones using a multirate string model is introduced. The resonators allow for a full para...

Sound systems delivering enhanced Spatial reproduction compared with conventional two-channel stereo demand appropriate subjective testing techniques to assess their performance. Sound quality assessment methods of the past 30 years have been mainly concerned with attributes other than spatial, concentrating primarily on timbral and distortion issueswhen assessingthe qualitiesof loudspeakersor ...

( i ) The procedure o f i n f e r e n c i n g i s a c t i v a t e d a f t e r the i n p u t s e n t e n c e has been r e c o g n i z e d as a q u e s t i o n . However, i t would be u s e l e s s to s e a r c h t h r o u g h t h e whole d a t a b a s e . Thus o n l y a sma l l p a r t o f t he d a t a base SQ, v i z . t he s e t o f r e p r e s e n t a t i o n s of s e n t e n c e s r e l e v a...

The lack of synchronisation between a sender clock and a receiver audio clock in an audio application results in an undesirable effect known as “audio skew”. This paper proposes and implements a new approach to detecting and correcting audio skew, focusing on the accuracy of measurements and on the algorithm’s effect on the audio experience of the listener. The algorithms presented are shown to...

Why High Definition (HD) is Important Why are advances in video communications technology important? Such innovations matter because the productive value of interactive video is inextricably bound to the technology itself. After all, no one would watch television if it was difficult to turn on and had a low quality picture. Similarly, the reluctance to actively use video communications is linke...

During operation, construction machines generate high noise levels which can adversely affect the health and the job performance of operators. The noise control techniques currently applied to reduce the noise transmitted into the operator cab are all based on the decrease of the sound pressure level. Merely reducing this noise parameter may be suitable for the compliance with the legislative r...

In the study of tone origin in Sino-Tibetan language, Tibetan is the only language whose dialects reflect the development from non-tonal to tonal language systematically. Tibetan consists of three main dialects, which are Anduo (non-tonal), Kang (developing tonal) and Weizang (tonal). In the tone study of Kang, the biggest problem is that it is very difficult to identify the tones, because the ...