Temat: IACC - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Efficient Phantom Source Widening
Autorzy:: Zotter, F.
Frank, M.
Powiązania:: https://bibliotekanauki.pl/articles/177701.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: source widening
phantom source
decorrelation
IACC
inter-aural cross correlation coefficient
Opis:: We present a highly efficient filter structure to create power-complementary filter pairs for phantom source widening. It either introduces frequency-dependent phase or amplitude differences in a pair of loudspeaker signals. We evaluate how the perceptual effect is influenced by off-center listening positions in a standard ±30^o loudspeaker setup. The evaluation of the phantom source widening effect is based on measurements of the inter-aural cross-correlation coefficient (IACC), which is justified by its pronounced correlation to the perceived phantom source width in prior listening test results.
Źródło:: Archives of Acoustics; 2013, 38, 1; 27-37
0137-5075
Pojawia się w:: Archives of Acoustics
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Source Width of Frontal Phantom Sources: Perception, Measurement, and Modeling
Autorzy:: Frank, M.
Powiązania:: https://bibliotekanauki.pl/articles/176909.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: source width
phantom source
stereophony
IACC
inter-aural cross correlation coefficient
LF
lateral energy fraction
energy vector
Opis:: Phantom sources are known to be perceived similar to real sound sources but with some differences. One of the differences is an increase of the perceived source width. This article discusses the perception, measurement, and modeling of source width for frontal phantom sources with different symmetrical arrangements of up to three active loudspeakers. The perceived source width is evaluated on the basis of a listening test. The test results are compared to technical measures that are applied in room acoustics: the inter-aural cross correlation coefficient (IACC) and the lateral energy fraction (LF). Adaptation of the latter measure makes it possible to predict the results by considering simultaneous sound incidence. Finally, a simple model is presented for the prediction of the perceived source width that does not require acoustic measurements as it is solely based on the loudspeaker directions and gains.
Źródło:: Archives of Acoustics; 2013, 38, 3; 311-319
0137-5075
Pojawia się w:: Archives of Acoustics
Dostawca treści:: Biblioteka Nauki

Artykuł

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