scholarly journals Digital Watermarking of Audio Signals for Robust Hidden Audio Communication via Air Audio Channel

2017 ◽  
Vol 6 (55) ◽  
pp. 185
Author(s):  
Maksim Viktorovich Gofman ◽  
Anatoliy Adamovich Kornienko ◽  
Evgenij Timofeevich Mironchikov ◽  
Aleksandr Borisovich Nikitin
Keyword(s):  
Digital Watermarking ◽  
Audio Signals ◽  
Audio Channel ◽  
Audio Communication

scholarly journals Audio streaming over low data rate wireless system

2011 ◽  
pp. 51-55
Author(s):  
M. Radhika ◽  
Dr.K. Rama Naidu
Keyword(s):  
Embedded System ◽  
Data Communication ◽  
Data Rate ◽  
Research Field ◽  
Mesh Network ◽  
Audio Signals ◽  
Wireless System ◽  
Audio Data ◽  
Audio Communication ◽  
Real Time Application

Audio applications over wireless networks have recently emerged as a promising research field. However, the limits in terms of communication bandwidth and transmission power have withstood the design of low-power embedded nodes for audio communication. In this work we describe the implementation details of an embedded system for the wireless broadcasting of audio signals over the low data rate wireless system. Here the audio data transferred through a wireless network instead of alarms. That is it tells how to go and where the disaster occurs. This is a challenging task because the effective data rate available in mesh network is low. Most of the bandwidth is consumed by alarm/data communication and audio steering is a real time application. Because of this low data rate we use Huffman compression and decompression algorithms to compress and decompress the audio data.

Outreach Opportunities Using the Instructional SEM at Iowa State University

1996 ◽  
Vol 54 ◽  
pp. 412-413
Author(s):  
L. S. Chumbley ◽  
M. Meyer ◽  
K. Fredrickson ◽  
F.C. Laabs
Keyword(s):  
Materials Science ◽  
State University ◽  
Digital Cameras ◽  
Audio Signals ◽  
Iowa State University ◽  
Cornell University ◽  
Sem Image ◽  
Local Schools ◽  
Materials Science And Engineering ◽  
Video And Audio

The development of a scanning electron microscope (SEM) suitable for instructional purposes has created a large number of outreach opportunities for the Materials Science and Engineering (MSE) Department at Iowa State University. Several collaborative efforts are presently underway with local schools and the Department of Curriculum and Instruction (C&I) at ISU to bring SEM technology into the classroom in a near live-time, interactive manner. The SEM laboratory is shown in Figure 1.Interactions between the laboratory and the classroom use inexpensive digital cameras and shareware called CU-SeeMe, Figure 2. Developed by Cornell University and available over the internet, CUSeeMe provides inexpensive video conferencing capabilities. The software allows video and audio signals from Quikcam™ cameras to be sent and received between computers. A reflector site has been established in the MSE department that allows eight different computers to be interconnected simultaneously. This arrangement allows us to demonstrate SEM principles in the classroom. An Apple Macintosh has been configured to allow the SEM image to be seen using CU-SeeMe.

Digital Watermarking – A Multidisciplinary Approach

2013 ◽  
Vol 5 (1) ◽  
pp. 18-23
Author(s):  
L. Venkateswarlu ◽  
◽  
Dr. N V Rao ◽  
Keyword(s):  
Digital Watermarking ◽  
Multidisciplinary Approach
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