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Stereo Goes Mobile: Spatial Enhancement for Short-distance Loudspeaker Setups

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review


Original languageEnglish
Title of host publicationIntelligent Information Hiding and Multimedia Signal Processing (IIH-MSP), 2012 Eighth International Conference on
Number of pages4
ISBN (Electronic)978-0-7695-4712-1
ISBN (Print)978-1-4673-1741-2
Publication statusPublished - Jun 2012
Publication typeA4 Article in a conference publication


Modern mobile, hand-held devices offer enhanced capabilities for video and sound reproduction. Nevertheless, major restrictions imposed by their limited size render them inconvenient for headset-free stereo sound reproduction, since the corresponding short-distant loudspeakers placement physically narrows the perceived stereo sound localization potential. In this work, we aim at evaluating a spatial enhancement technique for small-size mobile devices. This technique extracts the original panning information from an original stereo recording and spatially extends it using appropriate binaural rendering. A sequence of subjective tests performed shows that the derived spatial perceptual impression is significantly improved in all test cases considered, rendering the proposed technique an attractive approach towards headset-free mobile audio reproduction.


  • Stereo image enhancement, mobile devices, source separation, Binaural mixing

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