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Cue Points: A mechanism for audio resource browsing

Cue Points: A mechanism for audio resource browsing. E. Brazil Interaction Design Centre University of Limerick Ireland. What are Cue Points ?. Known under several names Seek Points Index Points Key Frames Metadata – information which makes other data useful.

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Cue Points: A mechanism for audio resource browsing

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  1. Cue Points: A mechanism for audio resource browsing E. Brazil Interaction Design Centre University of Limerick Ireland

  2. What are Cue Points ? • Known under several names • Seek Points • Index Points • Key Frames • Metadata – information which makes other data useful

  3. Where do you find Cue Points ? • Access Metadata • Used for indexing, browsing and retrieval of data • Found in file headers • Readily Accessible • Standardised Music File Formats

  4. Idea for Research • Use Cue Points as Marker Points • Mark a specific point or section of a sound • Play only significant portion of sound while browsing • Allows for faster browsing

  5. Support for Cue Points • Found in many common sound file formats • Implementation varies, no standard method • Formats examined were aiff, mpeg 1 / 2 / 4 / 7, wave and ra. * • Technical Report UL-IDC-01-02

  6. Conclusions of Examination • A mechanism for coping with the increasing size of digital resource collections • Already used in audio authoring applications • Not used in applications for searching and/or browsing !

  7. Links to Current Research • Sonic Browser • retrieval application used for browsing audio resources and for managing general sound resources • Aims to incorporate the use of Cue Points into the Sonic Browser as additional browsing mechanism

  8. Conclusions • Adds a useful browsing mechanism to applications • Reduce time to identify sound by playing characteristic or significant part • Exploit existing file formats, many of which already support Cue Points

  9. References: • Prothman, “Meta data,” IEEE Potentials, vol. 19, pp. 20 –23, 2000. • R. M. Warren, Auditory Perception - A new Analysis and Synthesis. Cambridge: Cambridge University Press, 1999. • E. Brazil, Cue Points: An Examination Of Common Sound File Formats, UL-IDC-01-02, 2001.

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