Tehnički vjesnik, Vol. 22 No. 2, 2015.
Izvorni znanstveni članak
https://doi.org/10.17559/TV-20150324110051
Sound source influence to the room acoustics quality measurement
Siniša Fajt
; University of Zagreb, Faculty of Electrical Engineering and Computing, Department of Electroacoustics, Unska 3, HR-10000 Zagreb, Croatia
Miljenko Krhen
orcid.org/0000-0002-9395-5249
; University of Zagreb, Faculty of Electrical Engineering and Computing, Department of Electroacoustics, Unska 3, HR-10000 Zagreb, Croatia
Marin Milković
; University North, Trg dr. Žarka Dolinara 1, HR-48000 Koprivnica, Croatia
Sažetak
Objective parameters of the room acoustics quality are obtained from the impulse response, which is measured using the appropriate PC based acoustic measurement system with two types of loudspeakers. Such measurement gives the impulse response that is the result of measurement of the entire system, which consists of the room and electro acoustics equipment. In order to investigate the real influence of loudspeakers on the measurement results, the research was made in the same measuring conditions. Impulse responses were measured with the same measuring system. Measuring point was selected at the optimum listening position in the room, and all measurements were carried out in the same place. The loudspeakers were placed at the optimum and characteristic positions in the room, and rotated around their axes in order to determine the impact of their position and directivity characteristics on the measurement of objective parameters of room acoustic quality.
Ključne riječi
acoustic measurements; impulse response; objective acoustics quality; room acoustics; sound source
Hrčak ID:
138112
URI
Datum izdavanja:
22.4.2015.
Posjeta: 1.760 *