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

Other

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

Fingerprint

loudspeakers
acoustics
ratings
files
frequency response
hardware
evaluation

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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). Audio Engineering Society.

Ambidio : Sound stage width extension for internal laptop loudspeakers. / Wu, Tsai Yi; Roginska, Agnieszka; Glasgal, Ralph.

136th Audio Engineering Society Convention 2014. Audio Engineering Society, 2014. p. 462-469.

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

Wu, TY, Roginska, A & Glasgal, R 2014, Ambidio: Sound stage width extension for internal laptop loudspeakers. in 136th Audio Engineering Society Convention 2014. Audio Engineering Society, pp. 462-469, 136th Audio Engineering Society Convention 2014, Berlin, Germany, 4/26/14.
Wu TY, Roginska A, Glasgal R. Ambidio: Sound stage width extension for internal laptop loudspeakers. In 136th Audio Engineering Society Convention 2014. Audio Engineering Society. 2014. p. 462-469
Wu, Tsai Yi ; Roginska, Agnieszka ; Glasgal, Ralph. / Ambidio : Sound stage width extension for internal laptop loudspeakers. 136th Audio Engineering Society Convention 2014. Audio Engineering Society, 2014. pp. 462-469
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