Patent ID: 11902757
Assignee: TENCENT AMERICA LLC
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 7:
8. An apparatus for acoustic echo suppression using a recurrent neural network, the apparatus comprising:
at least one memory configured to store program code; and
at least one processor configured to read the program code and operate as instructed by the program code, the program code including:
receiving code configured to cause the at least one processor to receive a microphone signal and a far-end reference signal;
signal estimating code configured to cause the at least one processor to estimate an echo suppressed signal and an echo signal based on the microphone signal and the far-end reference signal;
filter estimating code configured to cause the at least one processor to estimate enhancement filters for the microphone signal based on the echo suppressed signal and the echo signal;
generating code configured to cause the at least one processor to generate an enhanced signal based on the enhancement filters; and
adjusting code configured to cause the at least one processor to adjust the enhanced signal using automatic gain control (AGC) and outputting the adjusted signal.