Exploration of First-Order Ambisonics Usage in VR Concert Experiences: The effect on Presence and Perceptual Quality of Spatial Sound
Translated title
Exploration of First-Order Ambisonics Usage in VR Concert Experiences: Effekten på presence og kvalitetsopfattelse af spatial lyd
Author
Term
4. Term
Education
Publication year
2017
Submitted on
2017-06-03
Pages
93
Abstract
Dette speciale omhandler brugen af 1.grads ambisonics i VR koncertoplevel-ser afspillet binauralt gennem hørete-lefoner. To eksperimenter er blevet ud-ført, med hver deres koncertoplevel-se. Det første eksperiment (N=27, be-tween group) udforsker 3 lydoplevel-ser med henblik på deres effekt påpresence, kvalitet og præference: 1)optaget med en ambisonics mikrofon(H2n), 2) syntetiseret ambisonics, 3)mono reference. Resultaterne viste in-gen signifikante forskelle, men der varen klar præference af ambisonics medH2n. Andet eksperiment (N=18, wit-hin group) udforsker den subjektivekvalitetsopfattelse af to forskellige am-bisonics mikrofoner (H2n og AMBEOVR), samt måling og sammenligning afpresence, og også præference. Resulta-terne viste ingen signifikante forskellepå presence, og havde nogenlunde li-ge scoringer i kvalitetsopfattelse. Dervar en præference mod H2n oplevel-sen. Begge eksperimenter viser succes-fulde implementationer af ambisonicsi VR koncerter, der bevarer høj kvalitetog inkluderer følelsen af at "være der"
This thesis examines the usage of first-order ambisonics in VR concert ex-perinces rendered binarually throughheadphones.Two experiments havebeen conducted with each their indi-vidual concert experience.The firstexperiment (N=27, between group) ex-plore 3 sound experiences in regardsto the effect on presence, quality andpreference: 1) recorded with an am-bisonics microphone (H2n), 2) syn-thesized ambisonics, 3) mono refer-ence. The results did not show anysignificant differences, but there wasa clear preference towards ambison-ics with H2n.The second experi-ment (N=18, within group) explore thesubjective perceptual quality of twodifferent ambisonic microphones (H2nand AMBEO VR), as well as measur-ing and comparison of presence, andalso preference. The results did notshow any significant differences onpresence, and the perpcetual qualityscores were fairly equal. There wasa preference towards the H2n experi-ence. Both experiments show success-ful implementations of ambisonics inVR concerts, that preserve high qual-ity and includes the feeling of “beingthere”.
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