Ambidio: Sound stage width extension for internal laptop loudspeakers

Tsai Yi Wu, Agnieszka Roginska, Ralph Glasgal

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper introduces a sound stage width extension method for internal loudspeakers. Ambidio is a realtime application that enhances a stereo sound file playing on a laptop in order to provide a more immersive experience over built-in laptop loudspeakers. The method, based on Ambiophonics principles, is relatively robust to a listener's head position, and requires no measured/synthesized HRTFs. The key novelty of the approach is the pre/post-processing algorithm that dynamically tracks the image spread and modifies it to fit the hardware setting in real-time. Two detailed evaluations are provided to assess the robustness of the proposed method. Experimental results show that the average perceived stage width of Ambidio is 176° using internal speakers, while keeping a relatively flat frequency response and a higher user preference rating.

Original languageEnglish (US)
Title of host publication136th Audio Engineering Society Convention 2014
PublisherAudio Engineering Society
Pages462-469
Number of pages8
ISBN (Print)9781632665065
StatePublished - 2014
Event136th Audio Engineering Society Convention 2014 - Berlin, Germany
Duration: Apr 26 2014Apr 29 2014

Publication series

Name136th Audio Engineering Society Convention 2014

Other

Other136th Audio Engineering Society Convention 2014
CountryGermany
CityBerlin
Period4/26/144/29/14

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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  • Cite this

    Wu, T. Y., Roginska, A., & Glasgal, R. (2014). Ambidio: Sound stage width extension for internal laptop loudspeakers. In 136th Audio Engineering Society Convention 2014 (pp. 462-469). (136th Audio Engineering Society Convention 2014). Audio Engineering Society.