Patent ID: 11961522
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 10:
11. An electronic apparatus for recognizing a user voice, the electronic apparatus comprising:
a memory storing one or more instructions; and
a processor configured to execute the one or more instructions,
wherein the processor is further configured to, by executing the one or more instructions:
obtain an audio signal segmented into a plurality of frame units,
determine an energy component for each filter bank by applying a filter bank distributed according to a preset scale to a frequency spectrum of the audio signal segmented into the plurality of frame units,
smooth the determined energy component for each filter bank,
extract a feature vector of the audio signal based on the smoothed energy component for each filter bank, and
recognize the user voice in the audio signal by inputting the extracted feature vector to a voice recognition model,

wherein the processor is further configured to determine a window length of a window to segment into the plurality of frame units, and
wherein the window length of a window used when a vocal tract length perturbation (VTLP) is applied to the frequency spectrum of a training signal is different from the window length of a window used when a room impulse (RIR) filter is adopted and the window length of a window used when actually obtained user voice in the audio signal is recognized.