Augmentation of perceived spatial extent of reverberation in stereophonic listening using elevation filters

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussaConference article in proceedingsScientificvertaisarvioitu

33 Lataukset (Pure)


Perception-based elevation filters allow illusory sound source elevation in loudspeaker listening. The filters are applied to early-reflection parts of two-channel stereophonic room impulse responses to augment spatially the perception of the reverberant field. Two types of elevation filters are applied to the early reflections, both targeting 60 elevation: a frequency-weighting filter based on Blauert’s directional band theory and a difference-spectrum filter. A listening test examines the effect on perceived spatial ‘extension’ and spectral ‘colouration’ compared to the unfiltered reference stimulus. The results show that the elevation filters extend the auditory space slightly, and the perceived colouration by those filters is within an acceptable level. However, a higher extension level tends to yield more prominent colouration. Additionally, elongated reverberation time or amplified early reflection levels result in a more significant extension, allowing control of the elevation filter applications to a desired extension level while restraining colouration to a tolerable level.

OtsikkoAES Europe Spring Convention
Alaotsikko154th Audio Engineering Society Convention
KustantajaAudio Engineering Society
ISBN (elektroninen)978-1-7138-7778-3
TilaJulkaistu - 13 toukok. 2023
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisussa
TapahtumaAudio Engineering Society Convention - Espoo, Suomi
Kesto: 13 toukok. 202315 toukok. 2023
Konferenssinumero: 154


ConferenceAudio Engineering Society Convention


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