MUMBAI, India, June 30 -- Intellectual Property India has published a patent application (202647074463 A) filed by Koninklijke Philips N. V. on June 16, 2026, for Generation Of Multichannel Audio Signal.
Inventors include Schuijers, Erik Gosuinus Petrus; Kechichian, Patrick; and Ravi, Akshaya.
The application for the patent was published on June 26, 2026, under issue no. 26/2026.
Abstract: An apparatus comprises a receiver (101) arranged to receive a frequency domain audio signal and a decorrelator (107) therefrom generates a frequency domain decorrelated signal. An envelope compensator (109) generates a compensated frequency domain decorrelated signal by applying a time domain envelope compensation to the decorrelated signal to reduce a difference between the time domain envelope of the frequency domain audio signal and the time domain envelope of the frequency domain decorrelated signal. The envelope compensator (109) comprises at least one trained artificial neural network having input values determined from at least one of the frequency domain audio signal and the frequency domain audio signal and generating time domain envelope compensation data for the time domain envelope compensation. An output generator (105) generates the multichannel audio signal by upmixing from the frequency domain audio signal and the frequency domain decorrelated signal.
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