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Audio effects increasing the perceived source extent (width/distance) often employ frequency-dependent panning of a single virtual sound object or real-time-controlled design of stochastic multichannel filters. Both ways imply increased complexity required in the renderer or object representation. In this paper we present a frequency-dependent panning scheme to obtain constellations of 3, 4, 5, or 7 filtered sound objects, as a simplified object-based description of wide/distant sound for any renderer. We deal with the multichannel filter-design questions: Are the filters rather temporally compact or frequency-selective, zero-phase FIR vs. IIR or causal-sided FIR, how strictly power-complementary? By results of a listening experiment for selected examples, we can provide some answers and an effective design of useful width-/distance-increasing filtered sound objects.
Author (s): Zotter, Franz; Frank, Matthias
Affiliation:
University of Music and Performing Arts Graz, Graz, Austria
(See document for exact affiliation information.)
AES Convention: 142
Paper Number:9728
Publication Date:
2017-05-06
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Session subject:
Spatial Audio—Ambisonics
Permalink: https://aes2.org/publications/elibrary-page/?id=18605
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Zotter, Franz; Frank, Matthias; 2017; Phantom Source Widening by Filtered Sound Objects [PDF]; University of Music and Performing Arts Graz, Graz, Austria; Paper 9728; Available from: https://aes2.org/publications/elibrary-page/?id=18605
Zotter, Franz; Frank, Matthias; Phantom Source Widening by Filtered Sound Objects [PDF]; University of Music and Performing Arts Graz, Graz, Austria; Paper 9728; 2017 Available: https://aes2.org/publications/elibrary-page/?id=18605