Extended AMR-WB for high-quality audio on mobile devices

2006 ◽  
Vol 44 (5) ◽  
pp. 90-97 ◽  
Author(s):  
R. Salami ◽  
R. Lefebvre ◽  
A. Lakaniemi ◽  
K. Kontola ◽  
S. Bruhn ◽  
...  
Keyword(s):  
2011 ◽  
Vol 13 (5) ◽  
pp. 1077-1091 ◽  
Author(s):  
Hong-Han Shuai ◽  
De-Nian Yang ◽  
Wen-Huang Cheng ◽  
Ming-Syan Chen

Author(s):  
Laurel Evelyn Dyson ◽  
Andrew Litchfield ◽  
Elaine Lawrence ◽  
Ryszard Raban ◽  
Peter Leijdekkers

<span>This article reports on an m-learning research agenda instituted at our university in order to explore how mobile technology can enhance active, experiential learning. Details of the implementation and results of four areas of m-learning are presented: mobile supported fieldwork, fostering interactivity in large lectures with mobile technology, using mobile devices to learn about mobile technology and, finally, podcasting. These directions are informed by a concern for achieving m-learning practices consistent with sound educational theory and the needs of the contemporary, technologically aware student body. All four implementations have been successfully embedded in mainstream subjects on a continuing basis. Therefore they represent a departure from the project based approach of much m-learning reported in the literature. This outcome was achieved through a focus on the economic sustainability and feasibility of each case. An evaluation focusing on how well each case assisted students' learning found that, with the exception of lecture podcasting, all supported high quality experiential learning.</span>


2020 ◽  
Vol 19 (7) ◽  
pp. 1586-1602 ◽  
Author(s):  
Zeqi Lai ◽  
Y. Charlie Hu ◽  
Yong Cui ◽  
Linhui Sun ◽  
Ningwei Dai ◽  
...  

Author(s):  
Heiga Zen ◽  
Yannis Agiomyrgiannakis ◽  
Niels Egberts ◽  
Fergus Henderson ◽  
Przemysław Szczepaniak
Keyword(s):  

Author(s):  
Steven Bird

Speakers of the world’s endangered languages are rapidly gaining access to broadband internet on mobile devices. Meanwhile, social mobile technologies continue to transform the way people work together. I believe that conditions are ripe for the development of a new generation of software for endangered languages. This software will enable new ways for linguists to collaborate with speakers in ancestral homelands and worldwide diasporas to produce high-quality large-scale documentation. This chapter sets out a conceptual framework and describes some concrete steps for designing mobile applications for endangered languages, recognizing the special challenges they present, such as reliance on oral materials, lack of established orthography, and lower digital literacy.


Author(s):  
Sherali Zeadally

Over the last few years, we have witnessed the emergence of many wireless systems and devices such as cellular phones, personal digital assistants, pagers, and other portable devices. However, they are often used separately, and their applications do not interact. One of the goals of personal area networks (PANs) (Bluetooth SIG, 2002a; Gavrilovska & Prasad, 2001) is to enable such a diverse set of devices to exchange information in a seamless, friendly, and efficient way. The emergence of Bluetooth (Bluetooth SIG, 2001b; Roberts, 2003) wireless technology promises such seamless networking. Bluetooth is an open industry standard that can provide short-range radio communications among small form factor mobile devices. Bluetooth is based on a high-performance, low-cost integrated radio transceiver and has been designed to provide a cable replacement technology with emphasis on robustness and low cost. Bluetooth supports two types of links: the synchronous connection-oriented (SCO) link and the asynchronous connectionless link (ACL). Figure 1 illustrates the Bluetooth protocol stack. The link manager protocol (LMP) performs link setup and configuration functions. The logical link and control adaptation (L2CAP) layer supports protocol multiplexing and connection-oriented/connectionless data services. The host controller interface (HCI) layer provides an interface to access the hardware capabilities of Bluetooth. In this article, we focus on the design and implementation of an architecture that (a) provides interoperability and connectivity of Bluetooth networks with other networks using Internet protocol (IP) technology and (b) enables Bluetooth mobile devices to wirelessly stream high-quality audio (greater bandwidth than toll quality voice) content from other Internet devices. We also investigate the efficiency of different design approaches that can be used by Bluetooth-enabled devices for high-quality audio streaming.


Author(s):  
Pankaj Bajpai ◽  
Akshay Upadhyay ◽  
Sandeep Jana ◽  
Jaehyun Kim ◽  
Vamsee Kalyan Bandlamudi

10.28945/3179 ◽  
2007 ◽  
Author(s):  
Susan Nash

The growing popularity of mobile devices, coupled with the ever-increasing number of high-quality e-books available for free download is causing a re-examination of core curriculum and instructional philosophies. Perhaps the most - making “great books” programs available and accessible - newly interesting, despite misgivings and political correctness of the last few decades. Distance learning via mobile devices, which incorporate some of the techniques of television and film, has made the classics of literature available and allowed people to have access to classics at a very low cost. At the same time, it has re-animated debates about the nature of study of comparative literature in a globalized world.


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