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Digital Music and Audio Projects at Indiana University
Jon DunnDigital Library Program
Indiana University
August 16, 2001
Outline: Two Projects VARIATIONS
Production system Digital Music Library (DML)
R&D project
VARIATIONS Digital library of music sound recordings
(and scores) Online since 1996 Accessible in Music Library and other select
on-campus locations (copyright) Used daily by large student population
1500+ students As many as 7000 player launches per day
Collection Currently: 7200 titles, 8000 hours of
audio 5.9 TB uncompressed 1.6 TB compressed
Opera, songs, instrumental music, jazz, rock, world music
Course reserves and special collections
The past…
The present…
Technical Implementation “Off-the-shelf” components
Media server: IBM VideoCharger Storage server: Tivoli Storage Manager
Locally-developed components Player application VideoCharger-TSM integration Back-end management tools
Structural/administrative metadata editor
Other Technical Details Audio
Digitized in-house 16-bit 44.1 kHz stereo .WAV (1.4 Mbps) MPEG-1 layer 2 (384 Kbps)
Hardware IBM RS/6000 servers IBM 3494/3590 automated tape library
Content Loading
Newly digitizedWAV files
Archive tapefor vault
FTP
RS/6000TSM
server
Software MPEG
compression
In tape libraryfor access
Track Editorweb application
RS/6000web server
Track information
Archive server(TSM)
VRS
VideoCharger
Playback server
Player
Web server
Client
Browser
Content Access
VARIATIONS Metadata Descriptive
Existing USMARC records with URLs added to 856 fields
SIRSI Unicorn Administrative, structural
Digitization information Track descriptions and timings Stored in locally-defined “track file” format
VARIATIONS Demonstration
Original VARIATIONS Concept Burroughs and Fenske, 1990 VARIATIONS name
Theme and Variations Variety of information formats for music
Networked access for the music student or scholar to sound recordings, scores, textual materials, video recordings
Digital Music Library (DML) New four-year project: started October 1, 2000 Funding from Digital Libraries Initiative –
Phase 2 (DLI2) program: NSF, NEH Interdisciplinary team of investigators
Faculty: Music, Information Science, Law, Computer Science
Librarians and technologists: IU Libraries, University IT Services
Bloomington and Indianapolis campuses Satellite sites in US, UK, and Japan
DML Project Goals Establish a music library testbed system Develop applications: music instruction,
music library Conduct research: usability and
intellectual property
DML Testbed System Integrated access to music in all formats Delivery to wide range of users Extensible
e.g. future integration of content-based search, support for new media formats and delivery technologies
Staged development
DML System Features New content formats
Sound, score image, score notation, MIDI, video Improved search capabilities
New data model, metadata Links between objects
Easily navigate from score to sound (to video) Synchronized playback/navigation Customization
Bookmarking, annotation
DML System Features Network
Support for wide range of network technologies and bandwidths: LAN, Internet, Internet2, remote access
Access control To be determined by copyright
requirements
DML System Features Modular component-based architecture
Support development of applications via reusable components:
Search tool Audio player Score image viewer Score notation viewer/player Digital Timeliner …
DML System Architecture
RepositoriesImages, notation files, audio/video, metadata, …
ApplicationsGeneral purpose, Instruction
User interface componentsAudio player, score viewer, timeliner, …
Access components“Low-level” APIs
DML Data Model Problem: same musical work exists in many
formats Sound, score (notation and image), video
Not “compound objects” in the usual DL sense (e.g. MOA-2/METS)
How to support discovery of relationships between objects, synchronization?
DML Data Model Many entities; complex relationships
Creators/contributors Works (musical compositions) Instantiations (sound recordings, videos, scores) Containers (e.g. CDs, collected scores) Media objects (e.g. sound files, notation files, image filesets)
Other relationships: arrangements, medleys, collective titles, etc.
Music thesaurus for controlled vocabulary Structural metadata at work, instantiation, and
container level to support navigation, synchronization MARC import
DML Progress Requirements, data model, and UI
specs almost done for version 1 Version 1 due January 2002
For more information… VARIATIONS
http://www.dlib.indiana.edu/variations/ Digital Music Library
http://dml.indiana.edu/ IU Digital Library Program
http://www.dlib.indiana.edu/
E-mail: [email protected]