Audio and Video Support
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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. -
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’. -
Saracon Manual
Ultra High-QualitySar Audio-File And acSample-Rate Conversionon Software Manual Please see page two for version of this manual. Weiss Engineering Ltd. Florastrasse 42, 8610 Uster, Switzerland Phone: +41 44 940 20 06, Fax: +41 44 940 22 14 Email: [email protected], Websites: www.weiss.ch or www.weiss-highend.com 2 This is the manual for Saracon on Windows: c Weiss Engineering LTD. August 20, 2020 Typeset with LATEX 2". Author: Uli Franke Acknowledgements: Daniel Weiss, Rolf Anderegg, Andor Bariska, Andreas Balaskas, Alan Silverman, Kent Poon, Helge Sten, Bob Boyd, all the beta-testers and all other persons involved. Saracon Version: 01 . 61 - 37 Manual Revision: 00.03 Legal Statement The software (Saracon) and this document are copyrighted. All algorithms, coefficients, code segments etc. are intellectual property of Weiss Engineering ltd.. Neither disassembly nor re-usage or any similar is allowed in any way. Contravention will be punished by law. Information in this document is provided solely to enable the user to use the Saracon software from Weiss Engineering ltd.. There are no express or implied copyright licenses granted hereunder to design or program any similar software based on the information in this document. Weiss Engineering ltd. does not convey any license under its patent rights nor the rights of others. Weiss Engineering ltd. reserves the right to make changes without further notice to any products herein. Weiss Engineering ltd. makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Weiss Engineering ltd. assume any liability arising out of the application or use of any part of this software or manual, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. -
(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. -
Working with Audio/Video
Working with Audio/Video Who on campus works with video/audio? • Network and Classroom Services (NCS) provides a comprehensive variety of services supporting the use of information technology in education. Their main service includes support for Technology Classrooms and other centrally scheduled spaces on both North and South campuses. They also provide support for video/audio related services as listed below. (Alternative contact: Beth Fellendorf 645-5526 Email [email protected]) • Digital Lecture Hall Recording Digitally capture and store recorded content for access via the web. This service mainly provides audio recording capabilities, but video recording can also be arranged in certain circumstances. Check Classroom Attributes for a list of classroom descriptions, including Digital Lecture recording capability. • Classroom Capture Services Record lectures, workshops or other classroom based events and makes them available on the web. NCS can provide these services in multiple remote locations as well as several fixed distance learning classrooms. The files created can be made available for on-demand viewing or can be streamed lived as an event takes place. These video files are often used for student review, as primary or supplemental course content and to preserve special lectures for multiple semesters. If you need to capture content quickly and do not require any post-production editing they may be the right service for you. Recordings can be produced in Real Media, Windows Media or Accordant format. Viewers can review a recording via streaming technology on the web and, if you desire, they can be given the ability to download and save the file. Live streaming is provided in either Real Media or Windows Media format. -
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. -
Lossless Compression of Audio Data
CHAPTER 12 Lossless Compression of Audio Data ROBERT C. MAHER OVERVIEW Lossless data compression of digital audio signals is useful when it is necessary to minimize the storage space or transmission bandwidth of audio data while still maintaining archival quality. Available techniques for lossless audio compression, or lossless audio packing, generally employ an adaptive waveform predictor with a variable-rate entropy coding of the residual, such as Huffman or Golomb-Rice coding. The amount of data compression can vary considerably from one audio waveform to another, but ratios of less than 3 are typical. Several freeware, shareware, and proprietary commercial lossless audio packing programs are available. 12.1 INTRODUCTION The Internet is increasingly being used as a means to deliver audio content to end-users for en tertainment, education, and commerce. It is clearly advantageous to minimize the time required to download an audio data file and the storage capacity required to hold it. Moreover, the expec tations of end-users with regard to signal quality, number of audio channels, meta-data such as song lyrics, and similar additional features provide incentives to compress the audio data. 12.1.1 Background In the past decade there have been significant breakthroughs in audio data compression using lossy perceptual coding [1]. These techniques lower the bit rate required to represent the signal by establishing perceptual error criteria, meaning that a model of human hearing perception is Copyright 2003. Elsevier Science (USA). 255 AU rights reserved. 256 PART III / APPLICATIONS used to guide the elimination of excess bits that can be either reconstructed (redundancy in the signal) orignored (inaudible components in the signal). -
4. MPEG Layer-3 Audio Encoding
MPEG Layer-3 An introduction to MPEG Layer-3 K. Brandenburg and H. Popp Fraunhofer Institut für Integrierte Schaltungen (IIS) MPEG Layer-3, otherwise known as MP3, has generated a phenomenal interest among Internet users, or at least among those who want to download highly-compressed digital audio files at near-CD quality. This article provides an introduction to the work of the MPEG group which was, and still is, responsible for bringing this open (i.e. non-proprietary) compression standard to the forefront of Internet audio downloads. 1. Introduction The audio coding scheme MPEG Layer-3 will soon celebrate its 10th birthday, having been standardized in 1991. In its first years, the scheme was mainly used within DSP- based codecs for studio applications, allowing professionals to use ISDN phone lines as cost-effective music links with high sound quality. In 1995, MPEG Layer-3 was selected as the audio format for the digital satellite broadcasting system developed by World- Space. This was its first step into the mass market. Its second step soon followed, due to the use of the Internet for the electronic distribution of music. Here, the proliferation of audio material – coded with MPEG Layer-3 (aka MP3) – has shown an exponential growth since 1995. By early 1999, “.mp3” had become the most popular search term on the Web (according to http://www.searchterms.com). In 1998, the “MPMAN” (by Saehan Information Systems, South Korea) was the first portable MP3 player, pioneering the road for numerous other manufacturers of consumer electronics. “MP3” has been featured in many articles, mostly on the business pages of newspapers and periodicals, due to its enormous impact on the recording industry. -
The H.264 Advanced Video Coding (AVC) Standard
Whitepaper: The H.264 Advanced Video Coding (AVC) Standard What It Means to Web Camera Performance Introduction A new generation of webcams is hitting the market that makes video conferencing a more lifelike experience for users, thanks to adoption of the breakthrough H.264 standard. This white paper explains some of the key benefits of H.264 encoding and why cameras with this technology should be on the shopping list of every business. The Need for Compression Today, Internet connection rates average in the range of a few megabits per second. While VGA video requires 147 megabits per second (Mbps) of data, full high definition (HD) 1080p video requires almost one gigabit per second of data, as illustrated in Table 1. Table 1. Display Resolution Format Comparison Format Horizontal Pixels Vertical Lines Pixels Megabits per second (Mbps) QVGA 320 240 76,800 37 VGA 640 480 307,200 147 720p 1280 720 921,600 442 1080p 1920 1080 2,073,600 995 Video Compression Techniques Digital video streams, especially at high definition (HD) resolution, represent huge amounts of data. In order to achieve real-time HD resolution over typical Internet connection bandwidths, video compression is required. The amount of compression required to transmit 1080p video over a three megabits per second link is 332:1! Video compression techniques use mathematical algorithms to reduce the amount of data needed to transmit or store video. Lossless Compression Lossless compression changes how data is stored without resulting in any loss of information. Zip files are losslessly compressed so that when they are unzipped, the original files are recovered. -
Codec Is a Portmanteau of Either
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. -
Format Support
Episode 6 Format Support FILE FORMAT CODEC Episode Episode Episode Pro EngineCOMMENTS Adaptive bitrate streaming Microsoft Smooth Streaming H.264 (AAC audio) O Windows OS only. Available with Episode Engine License. Apple HLS H.264 (AAC audio) O Available with Episode Engine License. Windows Media WMV, ASF VC-1 O O O WM9 I/O I/O I/O WMV7 and 8 through F4M component on Mac WMA I/O I/O I/O WMA Pro I/O I/O I/O Flash FLV Flash 8 (VP6s/VP6e) I/O I/O I/O SWF Flash 8 (VP6s/VP6e) I/O I/O I/O MOV/MP4/F4V Flash 9 (H.264) I/O I/O I/O F4V as extension to MP4 WebM WebM VP8 O O O Vorbis O O O 3GPP 3GPP AAC I/O I/O I/O H.263 I/O I/O I/O H.264 I/O I/O I/O MainConcept and x264 MPEG-4 I/O I/O I/O 3GPP2 3GPP2 AAC I/O I/O I/O H.263 I/O I/O I/O H.264 I/O I/O I/O MainConcept and x264 MPEG-4 I/O I/O I/O MPEG Elementary Streams MPEG-1 Elementary Stream MPEG-1 (video) I/O I/O I/O MPEG-2 Elementary Stream MPEG-2 I/O I/O I/O MPEG Program Streams PS AAC O O O MainConcept and x264 H.264 I/O I/O I/O MPEG-1/2 (audio) I/O I/O I/O MPEG-2 I/O I/O I/O MPEG-4 I/O I/O I/O MPEG Transport Streams TS AAC I O O AES I I/O I/O H.264 I I/O I/O MainConcept and x264 AVCHD I I I HDV I I/O I/O MPEG - 1/2 (audio) I I/O I/O MPEG - 2 I I/O I/O MPEG - 4 I I/O I/O PCM I I I Matrox MAX H.264 I/O I/O I/O QT codec (*output possible via QT), Requires Matrox MAX hardware - Mac OS X only MPEG System Streams M1A MPEG-1 (audio) I/O I/O I/O M1V MPEG-1 (audio) I/O I/O I/O Episode 6 Format Support Format Support FILE FORMAT CODEC Episode Episode Episode Pro EngineCOMMENTS MPEG-4 MP4 AAC I/O I/O I/O -
Dune HD Duo 4K Is a New Premium Full-Sized 4K Network Media Player
Dune HD Duo 4K is a new premium full-sized 4K network media player, based on the famous SMP8758 Hi-End chip from Sigma Designs, with professional-grade picture quality, audiophile-grade hardware, advanced media playback features, advanced connectivity and integration options, Smart Home support. The new model is equipped with two hot swap 3.5” SATA HDD racks each supporting up to 10TB+ HDD, three USB ports, SD card slot, 1Gbit Ethernet, 802.11ac Dual Band 2T2R Wi-Fi, built-in DVB-T/T2/C tuner (for non-US version), built-in Z-Wave controller. Additionally, Duo 4K has a variety of advanced audiophile features, including the famous ESS SABRE32 Reference DAC (ES9018K2M), XLR balanced stereo audio output, S/PDIF audio input. ESS SABRE32 Reference DAC (ES9018K2M), XLR outputs Decoding 4K and converting SD/HD to 4K VXP professional-grade video processing engine Two hot swap 3.5” SATA HDD racks, Wi-Fi 802.11ac, 1Gbit Ethernet Full Blu-ray menu navigation Built-in Movies Collections Management True 24p output, 3D video, HD audio, Hi-End music DVB-T/T2/C tuner, Smart Home, Z-Wave Specifications Dune HD Duo 4K Media processor Sigma Designs SMP8758 (ARM) RAM 2 GB Flash 8 GB 3xUSB host, SD card slot, HDMI output, optical S/PDIF audio output, coaxial S/PDIF audio output, composite video output, RCA stereo audio output, XLR balanced stereo audio Connectors output, coaxial S/PDIF audio input, external IR port, Ethernet (10/100/1000Mbit), two external Wi-Fi antennas, DVB-T/T2/C RF input/output, 100V-240V AC input Internal storage Two internal HDD racks