Journal
INSTRUMENTS AND EXPERIMENTAL TECHNIQUES
Volume 63, Issue 4, Pages 494-501Publisher
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S002044122004034X
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Funding
- Ministry of Education and Science of the Russian Federation
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The results of theoretical calculations and experimental studies of the characteristics of an acoustic test signal when using an acoustic enclosure of the open-shield type are presented. The enrichment of the test acoustic signal spectrum due to the use of the developed enclosure was up to +30 dB in the frequency range of up to 500 Hz and from +4 to +20 dB in the frequency range of 1500-5000 Hz in comparison with the loudspeaker without an enclosure. The effect of room characteristics on the acoustic signal at the measurement point was studied and a method for compensation of this influence was proposed. As a result of applying it, the nonuniformity of the amplitude-frequency response of the acoustic signal at the measurement point decreased from 7 to 1.5 dB and the slopes of its spectral characteristic were eliminated.
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