How to Play Itunes Purchased and Rental Movies with XBMC
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Lossless Audio Codec Comparison
Contents Introduction 3 1 CD-audio test 4 1.1 CD's used . .4 1.2 Results all CD's together . .4 1.3 Interesting quirks . .7 1.3.1 Mono encoded as stereo (Dan Browns Angels and Demons) . .7 1.3.2 Compressibility . .9 1.4 Convergence of the results . 10 2 High-resolution audio 13 2.1 Nine Inch Nails' The Slip . 13 2.2 Howard Shore's soundtrack for The Lord of the Rings: The Return of the King . 16 2.3 Wasted bits . 18 3 Multichannel audio 20 3.1 Howard Shore's soundtrack for The Lord of the Rings: The Return of the King . 20 A Motivation for choosing these CDs 23 B Test setup 27 B.1 Scripting and graphing . 27 B.2 Codecs and parameters used . 27 B.3 MD5 checksumming . 28 C Revision history 30 Bibliography 31 2 Introduction While testing the efficiency of lossy codecs can be quite cumbersome (as results differ for each person), comparing lossless codecs is much easier. As the last well documented and comprehensive test available on the internet has been a few years ago, I thought it would be a good idea to update. Beside comparing with CD-audio (which is often done to assess codec performance) and spitting out a grand total, this comparison also looks at extremes that occurred during the test and takes a look at 'high-resolution audio' and multichannel/surround audio. While the comparison was made to update the comparison-page on the FLAC website, it aims to be fair and unbiased. -
High Level Architecture Framework
Java Media Framework Multimedia Systems: Module 3 Lesson 1 Summary: Sources: H JMF Core Model H JMF 2.0 API Programmers m Guide from Sun: Architecture http://java.sun.com/products/java-media/jmf/2.1/guide/ m Models: time, event, data H JMF 2.0 API H JMF Core Functionality H JMF White Paper from IBM m Presentation http://www- 4.ibm.com/software/developer/library/jmf/jmfwhite. m Processing html m Capture m Storage and Transmission H JMF Extensibility High Level Architecture H A demultiplexer extracts individual tracks of media data JMF Applications, Applets, Beans from a multiplexed media stream. A mutliplexer performs the JMF Presentation and Processing API opposite function, it takes individual tracks of media data and merges them into a single JMF Plug-In API multiplexed media stream. H A codec performs media-data Muxes & Codecs Effects Renderers Demuxes compression and decompression. Each codec has certain input formats that it can handle and H A renderer is an abstraction of a certain output formats that it can presentation device. For audio, the generate presentation device is typically the H An effect filter modifies the computer's hardware audio card track data in some way, often to that outputs sound to the speakers. create special effects such as For video, the presentation device is blur or echo typically the computer monitor. Framework JMF H Media Streams m A media stream is the media data obtained from a local file, acquired over the network, or captured from a camera or microphone. Media streams often contain multiple channels of data called tracks. -
A Forensic Database for Digital Audio, Video, and Image Media
THE “DENVER MULTIMEDIA DATABASE”: A FORENSIC DATABASE FOR DIGITAL AUDIO, VIDEO, AND IMAGE MEDIA by CRAIG ANDREW JANSON B.A., University of Richmond, 1997 A thesis submitted to the Faculty of the Graduate School of the University of Colorado Denver in partial fulfillment of the requirements for the degree of Master of Science Recording Arts Program 2019 This thesis for the Master of Science degree by Craig Andrew Janson has been approved for the Recording Arts Program by Catalin Grigoras, Chair Jeff M. Smith Cole Whitecotton Date: May 18, 2019 ii Janson, Craig Andrew (M.S., Recording Arts Program) The “Denver Multimedia Database”: A Forensic Database for Digital Audio, Video, and Image Media Thesis directed by Associate Professor Catalin Grigoras ABSTRACT To date, there have been multiple databases developed for use in many forensic disciplines. There are very large and well-known databases like CODIS (DNA), IAFIS (fingerprints), and IBIS (ballistics). There are databases for paint, shoeprint, glass, and even ink; all of which catalog and maintain information on all the variations of their specific subject matter. Somewhat recently there was introduced the “Dresden Image Database” which is designed to provide a digital image database for forensic study and contains images that are generic in nature, royalty free, and created specifically for this database. However, a central repository is needed for the collection and study of digital audios, videos, and images. This kind of database would permit researchers, students, and investigators to explore the data from various media and various sources, compare an unknown with knowns with the possibility of discovering the likely source of the unknown. -
Microsoft Powerpoint
Development of Multimedia WebApp on Tizen Platform 1. HTML Multimedia 2. Multimedia Playing with HTML5 Tags (1) HTML5 Video (2) HTML5 Audio (3) HTML Pulg-ins (4) HTML YouTube (5) Accessing Media Streams and Playing (6) Multimedia Contents Mgmt (7) Capturing Images 3. Multimedia Processing Web Device API Multimedia WepApp on Tizen - 1 - 1. HTML Multimedia • What is Multimedia ? − Multimedia comes in many different formats. It can be almost anything you can hear or see. − Examples : Pictures, music, sound, videos, records, films, animations, and more. − Web pages often contain multimedia elements of different types and formats. • Multimedia Formats − Multimedia elements (like sounds or videos) are stored in media files. − The most common way to discover the type of a file, is to look at the file extension. ⇔ When a browser sees the file extension .htm or .html, it will treat the file as an HTML file. ⇔ The .xml extension indicates an XML file, and the .css extension indicates a style sheet file. ⇔ Pictures are recognized by extensions like .gif, .png and .jpg. − Multimedia files also have their own formats and different extensions like: .swf, .wav, .mp3, .mp4, .mpg, .wmv, and .avi. Multimedia WepApp on Tizen - 2 - 2. Multimedia Playing with HTML5 Tags (1) HTML5 Video • Some of the popular video container formats include the following: Audio Video Interleave (.avi) Flash Video (.flv) MPEG 4 (.mp4) Matroska (.mkv) Ogg (.ogv) • Browser Support Multimedia WepApp on Tizen - 3 - • Common Video Format Format File Description .mpg MPEG. Developed by the Moving Pictures Expert Group. The first popular video format on the MPEG .mpeg web. -
Ardour Export Redesign
Ardour Export Redesign Thorsten Wilms [email protected] Revision 2 2007-07-17 Table of Contents 1 Introduction 4 4.5 Endianness 8 2 Insights From a Survey 4 4.6 Channel Count 8 2.1 Export When? 4 4.7 Mapping Channels 8 2.2 Channel Count 4 4.8 CD Marker Files 9 2.3 Requested File Types 5 4.9 Trimming 9 2.4 Sample Formats and Rates in Use 5 4.10 Filename Conflicts 9 2.5 Wish List 5 4.11 Peaks 10 2.5.1 More than one format at once 5 4.12 Blocking JACK 10 2.5.2 Files per Track / Bus 5 4.13 Does it have to be a dialog? 10 2.5.3 Optionally store timestamps 5 5 Track Export 11 2.6 General Problems 6 6 MIDI 12 3 Feature Requests 6 7 Steps After Exporting 12 3.1 Multichannel 6 7.1 Normalize 12 3.2 Individual Files 6 7.2 Trim silence 13 3.3 Realtime Export 6 7.3 Encode 13 3.4 Range ad File Export History 7 7.4 Tag 13 3.5 Running a Script 7 7.5 Upload 13 3.6 Export Markers as Text 7 7.6 Burn CD / DVD 13 4 The Current Dialog 7 7.7 Backup / Archiving 14 4.1 Time Span Selection 7 7.8 Authoring 14 4.2 Ranges 7 8 Container Formats 14 4.3 File vs Directory Selection 8 8.1 libsndfile, currently offered for Export 14 4.4 Container Types 8 8.2 libsndfile, also interesting 14 8.3 libsndfile, rather exotic 15 12 Specification 18 8.4 Interesting 15 12.1 Core 18 8.4.1 BWF – Broadcast Wave Format 15 12.2 Layout 18 8.4.2 Matroska 15 12.3 Presets 18 8.5 Problematic 15 12.4 Speed 18 8.6 Not of further interest 15 12.5 Time span 19 8.7 Check (Todo) 15 12.6 CD Marker Files 19 9 Encodings 16 12.7 Mapping 19 9.1 Libsndfile supported 16 12.8 Processing 19 9.2 Interesting 16 12.9 Container and Encodings 19 9.3 Problematic 16 12.10 Target Folder 20 9.4 Not of further interest 16 12.11 Filenames 20 10 Container / Encoding Combinations 17 12.12 Multiplication 20 11 Elements 17 12.13 Left out 21 11.1 Input 17 13 Credits 21 11.2 Output 17 14 Todo 22 1 Introduction 4 1 Introduction 2 Insights From a Survey The basic purpose of Ardour's export functionality is I conducted a quick survey on the Linux Audio Users to create mixdowns of multitrack arrangements. -
Capabilities of the Horchow Auditorium and the Orientation
Performance Capabilities of Horchow Auditorium and Atrium at the Dallas Museum of Art Horchow Auditorium Capacity and Stage: The auditorium seats 333 people (with a 12 removable chair option in the back), maxing out the capacity at 345). The stage is 45’ X 18’and the screen is 27’ X 14’. A height adjustable podium, microphone, podium clock and light are standard equipment available. Installed/Available Equipment Sound: Lighting: 24 channel sound board 24 fixed lights 4 stage monitors (with up to 4 Mixes) 5 movers (these give a wide array of lighting looks) 6 hardwired microphones 4 wireless lavaliere microphones 2 handheld wireless microphones (with headphone option) 9-foot Steinway Concert Grand Piano 3 Bose towers (these have been requested by Acoustic performers before and work very well) Music stands Projection Panasonic PTRQ32 4K 20,000 Lumen Laser Projector Preferred Video Formats in Horchow Blu Ray DVD Apple ProRes 4:2:2 Standard in a .mov wrapper H.264 in a .mov wrapper Formats we can use, but are not optimal MPEG-1/2 Dirac / VC-2 DivX® (1/2/3/4/5/6) MJPEG (A/B) MPEG-4 ASP WMV 1/2 XviD WMV 3 / WMV-9 / VC-1 3ivX D4 Sorenson 1/3 H.261/H.263 / H.263i DV H.264 / MPEG-4 AVC On2 VP3/VP5/VP6 Cinepak Indeo Video v3 (IV32) Theora Real Video (1/2/3/4) Atrium Capacity and Stage: The Atrium seats up to 500 people (chair rental required). The stage available to be installed in the Atrium is 16’ x 12’ x 1’. -
Lossless Audio Codec Comparison
Contents Introduction 3 1 Test setup 4 1.1 Scripting and graphing . .4 1.2 Codecs and parameters used . .5 1.3 WMA, RealAudio and ALAC . .6 2 CD-audio test 8 2.1 CD's used . .8 2.2 Results all CD's together . .9 2.3 Interesting quirks . 12 2.3.1 Mono encoded as stereo (Dan Browns Angels and Demons) 12 2.4 Convergence of the results . 15 3 High-resolution audio 17 3.1 Nine Inch Nails' The Slip . 17 3.2 Howard Shore's soundtrack for The Lord of the Rings: The Re- turn of the King . 20 3.3 Wasted bits . 22 4 Multichannel audio 24 4.1 Howard Shore's soundtrack for The Lord of the Rings: The Re- turn of the King . 24 A Motivation for choosing these CDs 27 Bibliography 31 2 Introduction While testing the efficiency of lossy codecs can be quite cumbersome (as results differ for each person), comparing lossless codecs is much easier. As the last well documented and comprehensive test available on the internet has been a few years ago, I thought it would be a good idea to update. Beside comparing with CD-audio (which is often done to assess codec perfor- mance) and spitting out a grand total, this comparison also looks at extremes that occurred during the test and takes a look at 'high-resolution audio' and multichannel/surround audio. While the comparison was made to update the comparison-page on the FLAC website, it aims to be fair and unbiased. Because of this, you'll probably won't find anything that looks like conclusions: test results are displayed and analysed, but there is no judgement or choice made. -
Realaudio and Realvideo Content Creation Guide
RealAudioâ and RealVideoâ Content Creation Guide Version 5.0 RealNetworks, Inc. Contents Contents Introduction......................................................................................................................... 1 Streaming and Real-Time Delivery................................................................................... 1 Performance Range .......................................................................................................... 1 Content Sources ............................................................................................................... 2 Web Page Creation and Publishing................................................................................... 2 Basic Steps to Adding Streaming Media to Your Web Site ............................................... 3 Using this Guide .............................................................................................................. 4 Overview ............................................................................................................................. 6 RealAudio and RealVideo Clips ....................................................................................... 6 Components of RealSystem 5.0 ........................................................................................ 6 RealAudio and RealVideo Files and Metafiles .................................................................. 8 Delivering a RealAudio or RealVideo Clip ...................................................................... -
(A/V Codecs) REDCODE RAW (.R3D) ARRIRAW
What is a Codec? Codec is a portmanteau of either "Compressor-Decompressor" or "Coder-Decoder," which describes a device or program capable of performing transformations on a data stream or signal. Codecs encode a stream or signal for transmission, storage or encryption and decode it for viewing or editing. Codecs are often used in videoconferencing and streaming media solutions. A video codec converts analog video signals from a video camera into digital signals for transmission. It then converts the digital signals back to analog for display. An audio codec converts analog audio signals from a microphone into digital signals for transmission. It then converts the digital signals back to analog for playing. The raw encoded form of audio and video data is often called essence, to distinguish it from the metadata information that together make up the information content of the stream and any "wrapper" data that is then added to aid access to or improve the robustness of the stream. Most codecs are lossy, in order to get a reasonably small file size. There are lossless codecs as well, but for most purposes the almost imperceptible increase in quality is not worth the considerable increase in data size. The main exception is if the data will undergo more processing in the future, in which case the repeated lossy encoding would damage the eventual quality too much. Many multimedia data streams need to contain both audio and video data, and often some form of metadata that permits synchronization of the audio and video. Each of these three streams may be handled by different programs, processes, or hardware; but for the multimedia data stream to be useful in stored or transmitted form, they must be encapsulated together in a container format. -
Ogg Audio Codec Download
Ogg audio codec download click here to download To obtain the source code, please see the xiph download page. To get set up to listen to Ogg Vorbis music, begin by selecting your operating system above. Check out the latest royalty-free audio codec from Xiph. To obtain the source code, please see the xiph download page. Ogg Vorbis is Vorbis is everywhere! Download music Music sites Donate today. Get Set Up To Listen: Windows. Playback: These DirectShow filters will let you play your Ogg Vorbis files in Windows Media Player, and other OggDropXPd: A graphical encoder for Vorbis. Download Ogg Vorbis Ogg Vorbis is a lossy audio codec which allows you to create and play Ogg Vorbis files using the command-line. The following end-user download links are provided for convenience: The www.doorway.ru DirectShow filters support playing of files encoded with Vorbis, Speex, Ogg Codecs for Windows, version , ; project page - for other. Vorbis Banner Xiph Banner. In our effort to bring Ogg: Media container. This is our native format and the recommended container for all Xiph codecs. Easy, fast, no torrents, no waiting, no surveys, % free, working www.doorway.ru Free Download Ogg Vorbis ACM Codec - A new audio compression codec. Ogg Codecs is a set of encoders and deocoders for Ogg Vorbis, Speex, Theora and FLAC. Once installed you will be able to play Vorbis. Ogg Vorbis MSACM Codec was added to www.doorway.ru by Bjarne (). Type: Freeware. Updated: Audiotags: , 0x Used to play digital music, such as MP3, VQF, AAC, and other digital audio formats. -
Name Synopsis Description
SHNTOOL(1) local SHNTOOL(1) NAME shntool − a multi-purpose WAV Edata processing and reporting utility SYNOPSIS shntool mode ... shntool [CORE OPTION] DESCRIPTION shntool is a command-line utility to viewand/or modify WAV Edata and properties. It runs in several dif- ferent operating modes, and supports various lossless audio formats. shntool is comprised of three parts - its core, mode modules, and format modules. This helps to makethe code easier to maintain, as well as aid other programmers in developing newfunctionality.The distribution archive contains a file named ’modules.howto’ that describes howtocreate a newmode or format module, for those so inclined. Mode modules shntool performs various functions on WAV Edata through the use of mode modules. The core of shntool is simply a wrapper around the mode modules. In fact, when shntool is run with a valid mode as its first argument, it essentially runs the main procedure for the specified mode, and quits. shntool comes with sev- eral built-in modes, described below: len Displays length, size and properties of PCM WAV Edata fix Fixes sector-boundary problems with CD-quality PCM WAV Edata hash Computes the MD5 or SHA1 fingerprint of PCM WAV Edata pad Pads CD(hyquality files not aligned on sector boundaries with silence join Joins PCM WAV Edata from multiple files into one split Splits PCM WAV Edata from one file into multiple files cat Writes PCM WAV Edata from one or more files to the terminal cmp Compares PCM WAV Edata in twofiles cue Generates a CUE sheet or split points from a set of files conv Converts files from one format to another info Displays detailed information about PCM WAV Edata strip Strips extra RIFF chunks and/or writes canonical headers gen Generates CD-quality PCM WAV Edata files containing silence trim Trims PCM WAV Esilence from the ends of files Formore information on the meaning of the various command-line options for each mode, see the MODE- SPECIFIC OPTIONS section below. -
Compression for Great Video and Audio Master Tips and Common Sense
Compression for Great Video and Audio Master Tips and Common Sense 01_K81213_PRELIMS.indd i 10/24/2009 1:26:18 PM 01_K81213_PRELIMS.indd ii 10/24/2009 1:26:19 PM Compression for Great Video and Audio Master Tips and Common Sense Ben Waggoner AMSTERDAM • BOSTON • HEIDELBERG • LONDON NEW YORK • OXFORD • PARIS • SAN DIEGO SAN FRANCISCO • SINGAPORE • SYDNEY • TOKYO Focal Press is an imprint of Elsevier 01_K81213_PRELIMS.indd iii 10/24/2009 1:26:19 PM Focal Press is an imprint of Elsevier 30 Corporate Drive, Suite 400, Burlington, MA 01803, USA Linacre House, Jordan Hill, Oxford OX2 8DP, UK © 2010 Elsevier Inc. All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher. Details on how to seek permission, further information about the Publisher’s permissions policies and our arrangements with organizations such as the Copyright Clearance Center and the Copyright Licensing Agency, can be found at our website: www.elsevier.com/permissions . This book and the individual contributions contained in it are protected under copyright by the Publisher (other than as may be noted herein). Notices Knowledge and best practice in this fi eld are constantly changing. As new research and experience broaden our understanding, changes in research methods, professional practices, or medical treatment may become necessary. Practitioners and researchers must always rely on their own experience and knowledge in evaluating and using any information, methods, compounds, or experiments described herein.