US 11,900,961 B2
Multichannel audio speech classification
Oron Nir, Herzeliya (IL); Inbal Sagiv, Kfar-Saba (IL); Maayan Yedidia, Ramat Gan (IL); Fardau Van Neerden, Driel (NL); and Itai Norman, Tel Aviv (IL)
Assigned to Microsoft Technology Licensing, LLC, Redmond, WA (US)
Filed by Microsoft Technology Licensing, LLC, Redmond, WA (US)
Filed on May 31, 2022, as Appl. No. 17/804,606.
Prior Publication US 2023/0386505 A1, Nov. 30, 2023
Int. Cl. G10L 25/69 (2013.01); G10L 25/21 (2013.01); G10L 25/06 (2013.01); G10L 19/16 (2013.01); G10L 19/008 (2013.01)
CPC G10L 25/69 (2013.01) [G10L 19/008 (2013.01); G10L 19/173 (2013.01); G10L 25/06 (2013.01); G10L 25/21 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system comprising:
a processor; and
memory coupled to the processor, the memory comprising computer executable instructions that, when executed by the processor, perform operations comprising:
receiving an audio signal comprising a first audio channel and a second audio channel;
transcoding the first audio channel into a first transcoded audio channel;
transcoding the second audio channel into a second transcoded audio channel;
calculating a first average power value for a first data window in the first transcoded audio channel;
calculating a second average power value for a second data window in the second transcoded audio channel;
determining a correlation value for the first data window in the first transcoded audio channel and the second data window in the second transcoded audio channel based on the first average power value and the second average power value, the correlation value identifying:
a positive correlation between the first data window and the second data window;
a negative correlation between the first data window and the second data window; or
a neutral correlation between the first data window and the second data window; and
classifying the audio signal based on the correlation value.