The real reasons you should invest in a surround‐sound system

2006 ◽  
Vol 119 (5) ◽  
pp. 3280-3280
Author(s):  
Barbara G. Shinn‐Cunningham
Keyword(s):  
Sound System ◽  
The Real ◽  
Surround Sound

The real-time implementation of 3D sound system using DSP

2005 ◽  
Author(s):  
Hyung-Jung Kim ◽  
Deock-Gu Jee ◽  
Man-Ho Park ◽  
Byung-Sik Yoon ◽  
Song-In Choi
Keyword(s):  
Real Time ◽  
Sound System ◽  
The Real ◽  
3D Sound

In situ evaluation of surround sound system performance

2013 ◽  
Vol 134 (5) ◽  
pp. 4185-4185
Author(s):  
Eric M. Benjamin ◽  
Aaron J. Heller ◽  
Fernando Lopez-Lezcano
Keyword(s):  
System Performance ◽  
Sound System ◽  
Surround Sound

Reflexes of extinct phonemes in Semitic

1978 ◽  
Vol 41 (3) ◽  
pp. 443-452
Author(s):  
Haiim B. Rosén
Keyword(s):  
Considerable Degree ◽  
Good Knowledge ◽  
Real Difference ◽  
Sound System ◽  
Semitic Languages ◽  
The Real ◽  
European Languages ◽  
Semitic Language ◽  
Degree Of Certainty ◽  
The Common

Phonological distinctions vanish in the course of the evolution of a language, but in diachronic phonology it is known that the distinctive oppositions involved do not necessarily disappear as a consequence thereof. Certain effects brought about by the ancient phonemes while they were still articulatorily different do survive after the originally distinct articulations have merged into one. The surviving effects are customarily called ‘reflexes’, that is, of the phonemes now extinct, and it is they that permit us to assume with a considerable degree of certainty that the distinctions now perceivable by virtue of the surviving effects were once vested in different phonemes in the same language. The doctrine of phoneme reflexes has contributed immensely to an ampler, more complete, and more refined knowledge of the sound system of the ancient Indo-European languages. In Semitics, however, this line of investigation has hitherto been much less exploited. While there can be no doubt that we have a fairly good knowledge of what might be termed ‘the common Semitic sound system’, such insights can only tell us what phonological distinctions exist in one historical Semitic language, while being absent from another, and how correspondences should be drawn up between them. The advantage, however, of the study of reflexes is that it affords insights into the mechanism of one and the same language and permits inferences on historically unattested distinctions as well as the reconstruction of a stage of a language prior to its earliest written documentation. We can grasp here the real difference between comparison and reconstruction: while comparison enlightens us as to how languages differ, it cannot make us see the true identity or physiognomy of any given language. This latter task is dependent upon the doctrine of reflexes. If certain otherwise common Semitic distinctions involving pharyngals are reflected in Early Akkadian as neatly regulated mechanisms of vocalic patterns, we must infer that it is not true to say that Akkadian is set apart from other Semitic languages by the absence in it of pharyngal articulations, because these articulations, since they left traces, could not have been absent in that language in its earliest stages. The identity of Akkadian will, therefore, have to be established on the ground of the presence, rather than the absence, of a certain statable number of pharynsal phonemes.

Feasibility analysis of letting multi-channel surround sound system into college singing class

2021 ◽  
pp. 002072092098608
Author(s):  
Pan Li ◽  
Yan Li
Keyword(s):  
Visual Information ◽  
Teaching Practice ◽  
Musical Instruments ◽  
High Tech ◽  
Sound System ◽  
Surround Sound ◽  
Multimedia Teaching ◽  
High Compression ◽  
Visual Impact ◽  
Correct Understanding

The multi-channel surround system used for multimedia teaching can bring more powerful auditory effects to the audience, and can fully mobilize students’ interest and enthusiasm in learning. Such as music arrangement, Yunnan musical instruments, the sound characteristics of national music and national musical instruments, and the sound processing knowledge of music processing. You can quickly master basic music arrangement, the sound characteristics of musical instruments, and the knowledge of mixing and processing music. Achieve better teaching results. Most multimedia devices on the market, with the music and sound effects, a high compression mono or stereo transmission. This mono or stereo transmission with a high compression ratio is very low quality. Since audio is far less powerful than visual impact, and the capacity of the disc used to store audio is small, people tend to focus on visual information processing, but ignore the importance of audio. Multi-channel surround sound technology has received more and more attention in the teaching practice of film and television colleges, but it is also affected by various factors such as venue facilities. This has caused bottlenecks in teaching in this field and has greatly affected the teaching effect. This paper designs and constructs a mobile multi-channel surround sound teaching system from a practical perspective. As part of a multimedia teaching device, try to use the best digital surround sound system for today’s audio reproduction. The feasibility of entering the digital surround sound system into the multimedia teaching classroom is analyzed. Better promote students’ correct understanding of audio and use modern high-tech digital technology to spread real art.

3-D sound field reproduction with reverberation control on surround sound system by combining parametric and electro-dynamic loudspeakers

2021 ◽  
Vol 263 (5) ◽  
pp. 1083-1094
Author(s):  
Yuna Harada ◽  
Kenta Iwai ◽  
Masato Nakayama ◽  
Takanobu Nishiura
Keyword(s):  
Sound Field ◽  
Experimental Results ◽  
Reverberation Time ◽  
Video Technology ◽  
Sound System ◽  
Target Sound ◽  
Surround Sound ◽  
Sound Image ◽  
Parametric Array ◽  
Conventional Systems

Recently, with the development of video technology, 3-D sound field reproduction systems that can provide a high presence have attracted attention. Conventional systems with electro-dynamic loudspeakers have a problem that the sound image lacks sharpness when constructing a narrow sound image. To solve this problem, we utilize a parametric array loudspeaker which has sharp directivity by the straightness of ultrasounds. Parametric array loudspeakers can produce sharper sound images due to the sharper directivity and lower reverberation compared with electro-dynamic loudspeakers. However, it is difficult to represent reverberation by parametric array loudspeakers. In this paper, we propose a method for 3-D sound field reproduction to achieve both the sharp images and reverberation presence by combing parametric array loudspeakers and electro-dynamic loudspeakers in surround sound system. In the proposed method, sharp sound images are rendered by parametric array loudspeakers and the reverberation presence is provided by electro-dynamic loudspeakers, emitting reverberation signals synthesized with a reverberation control filter. The reverberation control filter is adaptively designed to reproduce the reverberation time and the direct-to-reverberation ratio of the target sound field in other environments. The experimental results show that the proposed method can achieve the reproducing the sharp sound image with some reverberation presence.

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