A signal modulation approach to data sonification

Matti Gröhn*, Juha Backman, Aki Härmä

*Corresponding author for this work

Research output: Contribution to journalConference article in journalAcademicpeer-review

Abstract

The human ear has a remarkable ability to detect temporal structures and patterns even in highly complex signals. Therefore, it is profitable to use the ear in data analysis especially in the cases where the amount of data is vast for any practical visualization technique. The main principle in this paper is to incorporate psychoacoustic knowledge into the system. For example, auditory frequency resolution, i.e., ERB-scale is used in mapping data values to control parameters of the system. A real time computer program with a graphical user interface where various parameters of the system can be controlled is developed. For example, the time scale is continuously adjustable and there are methods to focus on some aspects or fractions of the data. The results are promising and show that this approach has potential in sonification applications. The limitation of the modulation approach is the number of simultaneously detectable parameters.

Original languageEnglish
Pages (from-to)53-62
Number of pages10
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume3298
DOIs
Publication statusPublished - 1998
Externally publishedYes
EventVisual Data Exploration and Analysis V - San Jose, CA, United States
Duration: 26 Jan 199827 Jan 1998

Keywords

  • Data analysis
  • Psychoacoustics
  • Sonification

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