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Individual Binaural Reproduction of Music Recordings Using a Virtual Artificial Head

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As an alternative to traditional arti?cial heads, a virtual arti?cial head (VAH) comprising a microphone array-based beamformer can be used to capture the spatial properties of a listener’s head and ears in the sound ?eld. The advantage of a VAH is the possibility to adapt the same recording post hoc to individual Head Related Transfer Functions (HRTFs) and to use head-tracking in the binaural reproduction. Here, a narrow-band least-squares cost function was minimized to calculate the ?lter coef?cients for the VAH with additional constraints on the spectral accuracy and beamformer robustness. Different versions of these constraints were applied to two simulated microphone array topologies and their effect on the resulting binaural reproduction is discussed based on objective results and perceptual experiments with spatially distributed music sources. The results show that, by choosing an appropriate array topology and properly de?ned constraints, the VAH can be used for a perceptually convincing reproduction of music content.

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Permalink: http://www.aes.org/e-lib/browse.cfm?elib=19654

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