MUMBAI, India, Sept. 14 -- Intellectual Property India has published a patent application (202617061947 A) filed by Meyer Sound Laboratories, Incorporated on May 15, 2026, for Method And System For Performing Transfer Function Measurements On A Device.
Inventors include Sierra Lozano, Juan Davis; Schwenke, Roger; and Gandhi, Swapan.
The application for the patent was published on September 11, 2026, under issue no. 37/2026.
Abstract: A method for performing transfer function measurements on a device such as a loudspeaker (referred to as a device under test or DUT) using a two-channel transfer function analyzer without a live copy of the DUT test signal. A virtual reference test signal, which is a copy of the DUT test signal, begins playing into a channel of the transfer function analyzer at the estimated start time and estimated play-back speed of the DUT test signal. The known play-back speed of the virtual reference test signal is compared to the estimated play-back speed of the DUT test signal and any detected differences between these two signals compensated for by either adjusting the play-back speed of the virtual reference test signal or the play-back speed of the DUT output, or both. A system for performing this method includes a virtual reference module having a detection part and adjustment part.
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