APPARATUS AND METHOD OF RECONSTRUCTING PHASE INFORMATION USING STRUCTURAL TENSOR ON SPECTROGRAMS Russian patent published in 2020 - IPC G10L19/00 G10L21/00 

FIELD: physics.

SUBSTANCE: invention relates to audio signal processing and is intended for separation of harmonic impact residual sound using structural tensor on spectrograms. Device for reconstructing a phase from an amplitude spectrogram of an audio signal comprises a frequency change detector configured to determine a frequency change for each time-frequency bin from a plurality of time-frequency bins of an amplitude spectrogram of the audio signal depending on an amplitude spectrogram of the audio signal, and a phase reconstructor configured to generate phase values for a plurality of time-frequency bins depending on frequency variations determined for a plurality of time-frequency bins.

EFFECT: technical result is providing improved principles for processing audio signals.

21 cl, 10 dwg, 1 tbl