Patent ID: 11948552
Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 6:
7. A speech processing apparatus, comprising:
at least one memory configured to store computer program code; and
at least one processor configured to access said computer program code and operate as instructed by said computer program code, said computer program code including:
first determining code configured to cause the at least one processor to determine a first speech feature and a first text bottleneck feature based on to-be-processed speech information;
second determining code configured to cause the at least one processor to determine a first combined feature vector based on the first speech feature and the first text bottleneck feature, wherein to determine the first text bottleneck feature based on the to-be-processed speech information, the second determining code is further configured to cause the at least one processor to:
extract an N-dimensional filter-bank feature and an M-dimensional pitch feature from the to-be-processed speech information, wherein N and M are positive integers,
splice the N-dimensional filter-bank feature and the M-dimensional pitch feature to obtain a second speech feature,
input the second speech feature to a trained automatic speech recognition (ASR) network, and
extract the first text bottleneck feature from a linear layer of a bottleneck of the trained ASR network;

inputting code configured to cause the at least one processor to input the first combined feature vector to a trained unidirectional long short-term memory (LSTM) model;
performing code configured to cause the at least one processor to perform speech processing on the first combined feature vector to obtain speech information after noise reduction; and
transmitting code configured to cause the at least one processor to transmit the speech information after noise reduction to another electronic device for playing.