Conference Paper

Amplitude Panning and the Interior Pan

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Abstract

The perception of source location using multi-loudspeaker amplitude panning is considered. While there exist many perceptual models for pairwise panning, relatively few studies consider the general multi-loudspeaker case. This paper evaluates panning scenarios in which a source is panned on the boundary or within the volume bounded by discrete loudspeakers, referred to as boundary and interior pans respectively. Listening results reveal the following: 1) pans to a single loudspeaker yield lowest localization error, 2) pairwise pans tend to be consistently localized closer to the listener than single loudspeaker pans, 3) largest errors occur when the virtual source is panned close to the listener, 4) interior pans are accurately perceived and, surprisingly, in some cases more accurately than pairwise pans.

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... Thomas and Robinson [35] conducted a study using physical loudspeakers as anchors in a localization task assessing dual-balance panned, auditory events. Five loudspeakers were configured at positions +90 • , +45 • , 0 • , -45 • and -90 • . ...
... The maximum eight loudspeakers are comprised of four pairs, two for left/right and two for front/rear. The gains for each balance pair are computed using sine/cosine functions [35]. The Cartesian point source panner is a 3D extension of the dual-balance panner, as described in [16]. ...
Conference Paper
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... As we further discuss in Sect. 2, the renderer (a fully-differentiable implementation [12] of Dolby Atmos [13]) enables multichannel-based learning, as opposed to object-based learning, because it dictates a fully-determined object-based format at the encoder's output. Finally, note that multichannel-based learning also bears resemblances with self-supervised learning [14,15]: instead of directly learning from objects, our loss targets a proxy signal based on multichannel renders. ...
... The mask-estimation block implements the U-Net [16], with minimal adaptations in the final layer to generate 5.1 masks. The renderer is the Dolby Atmos renderer [13] expressed in differentiable form. The de-panner and de-trimmer also correspond to the Dolby Atmos renderer. ...
Preprint
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