Transient multi-tone test signal and method for audio speakers

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United States of America Patent

PATENT NO 12207060
APP PUB NO 20230199414A1
SERIAL NO

17926837

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Abstract

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A transient multi-tone test signal is generated to detect piano noise distortion played back by a speaker. The test signal has a number, such as three, formant tones resembling a piano chord and selectable such that the frequencies and harmonics remain distributed in frequency. The test signal provides a basis for defining normal speaker operating performance and allows a user to define speaker responses that fall outside of normal boundaries by highlighting piano noise distortion detected during speaker playback of the test signal.

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Patent Owner(s)

Patent OwnerAddress
DOLBY LABORATORIES LICENSING CORPORATION1275 MARKET STREET SAN FRANCISCO CA 94103

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Griffiths, Kelvin Francis Porthcawl, GB 6 12
Stewart, John San Francisco, US 44 623

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