Digital Music and Audio Projects at Indiana University Jon Dunn Digital Library Program Indiana University August 16, 2001.

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]