Sound field measuring method and sound field measuring device

Details Sound field measuring method and sound field measuring device Sound field measuring method and sound field measuring device

2005-09-27

2010-11-09

Bhat, Aditya (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system

Measured signal processing

Reexamination Certificate

active

07831413

ABSTRACT:
A sound field measuring device uses a measurement signal which has at least one change point and whose frequency spectrum has a shape corresponding to a shape of a frequency spectrum of a background noise. This enables a sound field measurement, which is for measuring an impulse response or transfer function of a sound field space which is a linear time-invariant system to be measured, to be performed with a high S/N ratio over a wide frequency band.

REFERENCES:
patent: 2002/0062695 (2002-05-01), Ohta
patent: 2004/0240676 (2004-12-01), Hashimoto et al.
patent: 2007/0019815 (2007-01-01), Asada et al.
patent: 2725838 (1997-12-01), None
patent: 2867769 (1998-12-01), None
Masanori Morise et al., “Ansoon ni Ganken na Impulse Oto Sokuteiyo Shingo no Sekkei Shuho”, The Institute of Electronics, Information and Communication Engineers Gijutsu Kenkyu Hokoku, vol. 104, No. 247, Aug. 13, 2004, pp. 37 to 42.

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