digital audio broadcasting ppt presentation

Tài liệu Báo cáo môn mạng máy tính " ADSL - Asymmetric Digital Subscriber Line " ppt

Tài liệu Báo cáo môn mạng máy tính " ADSL - Asymmetric Digital Subscriber Line " ppt

... PHÒNG KHOA CÔNG NGHỆ THÔNG TIN BÁO CÁO MÔN MẠNG MÁY TÍNH ADSL ADSL (Asymmetric Digital Subscriber Line ) (Asymmetric Digital Subscriber Line ) Giáo viên hướng dẫn : Đỗ Xuân Toàn Nhóm sinh viên ... trên Internet một cách nhanh hơn. 4 ADSL có nghĩa như thế nào? ADSL viết tắt của Asymmetric Digital Subscriber Line - đó là đường thuê bao số không đối xứng, kỹ thuật truyền được sử dụng ... tới thuê bao) có thể nhanh gấp hơn 10 lần so với tốc độ của chiều lên (từ thuê bao tới mạng). Digital: Các Modem ADSL hoạt động ở mức bít (0 & 1) và dùng để chuyển thông tin số hoá giữa...

Ngày tải lên: 11/12/2013, 18:15

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Tài liệu The Emerging Digital Economy II ppt

Tài liệu The Emerging Digital Economy II ppt

... Electronic Commerce in the Digital Economy Page 13 43 "GDP and the Digital Economy: Keeping Up With the Changes," Brent R. Moulton, paper presented at Understanding the Digital Economy Conference , ... Commerce in the Digital Economy Page 1 * This chapter was written by Patricia Buckley, senior policy advisor in the Office of Policy Development. CHAPTER I ELECTRONIC COMMERCE IN THE DIGITAL ECONOMY * “The ... demand and business imperatives, the digital economy is becoming truly global. The United States continues to lead the world in many measures of the utilization of digital technology. However, this...

Ngày tải lên: 21/12/2013, 03:15

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Tài liệu COMPLETE DIGITAL DESIGN P1 ppt

Tài liệu COMPLETE DIGITAL DESIGN P1 ppt

... expres- sions are written by using the graphical representations shown in Table 1.4. Note that each operation has multiple symbolic representations. The choice of representation is a matter of style when ... CHAPTER 1 Digital Logic All digital systems are founded on logic design. Logic design transforms algorithms and processes conceived by people into computing machines. A grasp of digital logic ... ex- plained previously in designing hybrid analog /digital circuits to support a larger digital system. -Balch.book Page xvi Thursday, May 15, 2003 3:46 PM 8 Digital Fundamentals Augustus DeMorgan,...

Ngày tải lên: 22/12/2013, 20:18

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Tài liệu Complete Digital Design P2 ppt

Tài liệu Complete Digital Design P2 ppt

... Phase Period Finite transition time of real clock signal FIGURE 1.10 Digital clock signal. -Balch.book Page 18 Thursday, May 15, 2003 3:46 PM 24 Digital Fundamentals may begin to change. Again, if the input ... One-trillionth 10 –12 pps -Balch.book Page 24 Thursday, May 15, 2003 3:46 PM 14 Digital Fundamentals The majority of digital components adhere to power-of-two magnitude definitions. However, some ... two or three octal digits were common in earlier times. Because of the inherent binary nature of digital systems, quantities are most often expressed in or- ders of magnitude that are tied to binary...

Ngày tải lên: 22/12/2013, 21:18

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Tài liệu Altenative Digital Photography P1 ppt

Tài liệu Altenative Digital Photography P1 ppt

... CS. Chapter 1 x Alternative Digital Photography Chapter 11 Digital Pinhole 153 Lesson 11.1—Making Your Own Digital Pinhole Camera 154 Lesson 11.2—Using a Commercial Pinhole Attachment 157 Gallery of Digital Pinhole ... book is to bring back that fun by suggesting digital reproductions of the old techniques such as digital pinhole cameras, digital toy cameras, and digital infrared. It also suggests some new ideas ... it looks like in advance. 10 Alternative Digital Photography Figure 1.15 Creating a Channel Mixer layer. Figure 1.16 The Channel Mixer. 8 Alternative Digital Photography Figure 1.11 Picking the...

Ngày tải lên: 22/12/2013, 23:15

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Tài liệu Digital Communications Harold ppt

Tài liệu Digital Communications Harold ppt

... 1986. R.E. Ziemer and R.L. Peterson, Digital Communications and Spread Spectrum Systems, New York, Macmillan, 1985. R.E. Ziemer and R.L. Peterson, Introduction to Digital Communications, New York, ... sudden bump in the number of times Spread Spectrum (SS) techniques were mentioned in the amateur digital areas. While QEX has discussed SS in the past, we haven't touched on it in this forum. ... computer science at the Naval Postgraduate School in Monterey, California. His areas of interest are digital communications, amateur satellites, VHF/UHF contesting, and QRP. His research area closely...

Ngày tải lên: 21/01/2014, 04:20

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Tài liệu 40 MPEG Digital Audio Coding Standards pdf

Tài liệu 40 MPEG Digital Audio Coding Standards pdf

... MPEG-2 /Audio Multichannel Coding A logical further step in digital audio is the definition of a multichannel audio representation sys- tem to create a convincing, lifelike soundfield both for audio- only ... will use the MPEG-2 /Audio algorithm. 40.7 Conclusions Lowbitratedigitalaudioisappliedinmanydifferentfields,suchasconsumerelectronics,professional audioprocessing,telecommunications,andbroadcasting. ... stereo presentation will lead tonew proposals. Digital multichannel audio improves stereophonic images and will be of importance both for audio- only and multimedia applications. MPEG-2 /audio offers...

Ngày tải lên: 22/01/2014, 12:20

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Tài liệu 41 Digital Audio Coding: Dolby AC-3 pdf

Tài liệu 41 Digital Audio Coding: Dolby AC-3 pdf

... a frequency domain representation of the audio signal. A block diagram of this processis showninFig.41.2. Thefirststepintheencoding processistotransform therepresentation ofaudiofromasequenceofPCMsignalsampleblocksintoasequenceoffrequencycoefficientblocks. Thisisdonein ... G.A. Digital Audio Coding: Dolby AC-3” Digital Signal Processing Handbook Ed. Vijay K. Madisetti and Douglas B. Williams Boca Raton: CRC Press LLC, 1999 c  1999byCRCPressLLC TABLE41.2 AC-3 Audio ... of the six Audio Blocks depending on audio signal bit demand. This feature is particularly useful when the audio signal is non-stationary over the 1536-sample synchronization frame. Audio Blocks...

Ngày tải lên: 22/01/2014, 12:20

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Tài liệu Innovation within Digital Rights Management ppt

Tài liệu Innovation within Digital Rights Management ppt

... 4.1.4 Digital Content Protection LLC Digital Content Protection LLC is an organization created to license High- bandwidth Digital Content Protection (HDCP), a scheme for protecting video on Digital ... Digital Rights Management (DRM). DRM has attempted to address the issue of licensing and controlling distribution of digital content. In general, all DRM systems allow the distribution of digital ... in digital form. Virtually any information that can be represented by words, numbers, graphics, audio information, or a system of commands and instructions can be formatted into electronic digital...

Ngày tải lên: 24/01/2014, 00:20

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High-Performance, 16-bit Digital Signal Controllers ppt

High-Performance, 16-bit Digital Signal Controllers ppt

... contains specific information for the dsPIC30F3014/4013 Digital Signal Controller (DSC) devices. The dsPIC30F3014/4013 devices contain extensive Digital Signal Processor (DSP) functionality within ... Module 103 17.0 CAN Module 111 18.0 Data Converter Interface (DCI) Module 121 19.0 12-bit Analog-to -Digital Converter (ADC) Module 131 20.0 System Integration 141 21.0 Instruction Set Summary 159 22.0...

Ngày tải lên: 06/03/2014, 22:20

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Shoot Like a Pro! DIGITAL PHOTOGRAPHY TECHNIQUES ppt

Shoot Like a Pro! DIGITAL PHOTOGRAPHY TECHNIQUES ppt

... 207 B Online Resources for Digital Photographers . . . . . . . 219 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223 v DigPhoto / Shoot Like a Pro! Digital Photography/ King/ ... ways to get pro-quality results with your digital camera. Among other things, you’ll find out how to • Take better advantage of all the options on your digital camera—from resolution to ISO to ... virtual reality images. • Manipulate colors using traditional and digital filters. xvi Shoot Like a Pro! DigPhoto / Shoot Like a Pro! Digital Photography/ King/ 2949-7 / P:\010Comp\VirClass\949-7\fm.vp Thursday,...

Ngày tải lên: 11/03/2014, 19:20

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DAFX: Digital Audio Effects Second Edition potx

DAFX: Digital Audio Effects Second Edition potx

... DAFX (Digital Audio Effects) Scientific Committee. His interests are centered in audio signal representations, sound synthesis by physical models, digital audio effects, spatial audio, audio coding, ... INTRODUCTION Input signal DAFX Output signal Control parameters Acoustical and visual representation Acoustical and visual representation Figure 1.1 Digital audio effect and its control [Arf99]. The physical and acoustical phenomena of digital audio effects will ... Fundamentals of digital signal processing The fundamentals of digital signal processing consist of the description of digital signals –inthe context of this book we use digital audio signals –...

Ngày tải lên: 16/03/2014, 11:20

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Chuyển đổi và kiểm tra lỗi các tập tin audio với Helium Audio Converter ppt

Chuyển đổi và kiểm tra lỗi các tập tin audio với Helium Audio Converter ppt

... Chuyển đổi và kiểm tra lỗi các tập tin audio với Helium Audio Converter Helium Audio Converter là công cụ miễn phí, hỗ trợ người dùng chuyển đổi qua lại ... Options tương ứng với mỗi định dạng âm thanh xuất ra để thay đổi các tham số nén âm thanh. Helium Audio Converter tương thích mọi Windows, bạn tải về sử dụng miễn phí tại đây. ...

Ngày tải lên: 20/03/2014, 16:20

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Foundations of Analog and Digital Electronic Circuits ppt

Foundations of Analog and Digital Electronic Circuits ppt

... discretizing matter. 1 Digital systems use the digital abstraction, which is based on discretizing signal values. Clocked digital systems are based on discretizing both signals and time, and digital systolic ... often used as an abstract representation or a model of a piece of mate- rial with complicated internal behavior. Similarly, a circuit often serves as an abstract representation of interrelated ... abstraction that simplifies the building of bigger analog systems. The logic gate, the digital memory, the digital finite-state machine, and the microprocessor are themselves a succession of abstractions...

Ngày tải lên: 23/03/2014, 08:21

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