Spatial audio quality perception (part 1): Impact of commonly encountered processes
2015
Spatial audio processes (SAPs) commonly encountered in consumer audio reproduction
systems are known to generate a range of impairments to spatial quality. Two listening tests
(involving two listening positions, six 5-channel audio recordings, and 48 SAPs) indicate that
the degree of quality degradation is determined largely by the nature of the SAP but that
the effect of a particular SAP can depend on program material and on listening position.
Combining off-center listening with another SAP can reduce spatial quality significantly
compared to auditioning that SAP centrally. These findings, and the associated listening test
data, can guide the development of an artificial-listener-based spatial audio quality evaluation
system.
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