Bb feb2005

Digitizing and Delivering Audio and Video Jon Dunn Jenn Riley IU Digital Library Program Digital Library Brown Bag Series February 11, 2005

Some questions to ask when starting a project ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Presentation Outline ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Typical Audio/Video Workflow Editing/cleaning possible Source Master file Digitization/ Encoding Compressed derivative files for delivery Transcoding

Tools for Digitization ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Audio: Source Formats ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Digital Audio Basics ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Digital Audio: Sampling audio sampling quantization noise Barlow, Multimedia Systems , p. 77.

CD Audio ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Master Audio File Formats ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Audio Compression ,[object Object],[object Object],[object Object],[object Object]

Audio Compression: Masking Effect Barlow, Multimedia Systems , p. 73.

Audio Compression: Standards ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

MPEG-1 Audio Compression From the MPEG Audio FAQ http://www.tnt.uni-hannover.de/project/mpeg/audio/faq/

Audio Compression: Proprietary Formats (Codecs) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Video: Source Formats ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Video is just like a series of still images, right? ,[object Object],[object Object],[object Object],[object Object],No.

Video is somewhat like a series of still images ,[object Object],[object Object],[object Object]

Digital Video Basics ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Digital Video Basics 4:2:2 sampling 4:2:0 sampling 4:1:1 sampling 4:2:2 – High End DV (Digital Betacam, DVCPro50) 4:2:0 – MPEG 1 & 2 4:1:1 – DV and DVCAM

Digital Video Basics: Scary Math ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Digital Video Compression ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Master Video File Formats: No Good Choices ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Downloading ,[object Object],[object Object],[object Object],[object Object]

Streaming ,[object Object],[object Object],[object Object],[object Object]

Streaming media players ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Streaming servers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Other forms of delivery ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Digital audio and video services at IU ,[object Object],[object Object],[object Object],[object Object],[object Object]

Digital Library Program (DLP) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Digital Media Network Services (DMNS) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Digital Media Services (DMS) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Teaching and Learning Technologies Centers (TLTC) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Radio/TV Services ,[object Object],[object Object],[object Object]

VARIATIONS Digital Music Library ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Variations2 Digital Music Library ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

EVIA Digital Archive ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Video E-Reserves Project ,[object Object],[object Object],[object Object],[object Object],[object Object]

Video E-Reserves Workflow ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Video E-Reserves Access eres password UITS Streaming Servers eres password course number

DAAP: Digital Audio Archives Project ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Sound Directions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Questions? ,[object Object],[object Object],[object Object],[object Object]

Bb feb2005

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Editor's Notes