Speech data processing method, speech data processing device and speech control system

A method for training a speech keyword spotting model, comprising:

• acquiring an initial training data set, wherein the initial training data set comprises a plurality pieces of initial training speech data and keyword labels corresponding to the plurality pieces of initial training speech data;
• performing a data augmentation process on at least part of the initial training speech data in at least one data augmentation mode to obtain at least one piece of augmented training speech data and a keyword label corresponding to the augmented training speech data;
• and
• training the speech keyword spotting model according to the initial training speech data and the augmented training speech data to obtain the trained speech keyword spotting model.

A speech control system, comprising:

• a sound acquisition device configured to acquire speech data to be processed in an environment where the sound acquisition device is located, and send the speech data to be processed to a main control system;
• the main control system configured to receive the speech data to be processed acquired by the sound acquisition device, and send the speech data to be processed to a programmable logic unit;
• the programmable logic unit configured to perform speech feature extraction on the speech data to be processed to obtain a speech feature vector corresponding to the speech data to be processed, and convert the speech feature vector into a multi-channel input feature map;
• a computer-in-memory chip integrated with a speech keyword spotting model which is preset, and configured to perform speech keyword spotting on the input feature map by using a speech keyword spotting model, which is configured on the computer-in-memory chip in advance, to obtain a speech keyword spotting result;
• the main control system further configured to receive the speech keyword spotting result from the computer-in-memory chip, and control a terminal device to execute a corresponding response operation according to the speech keyword spotting result;
• and
• the terminal device configured to execute the response operation corresponding to the speech keyword spotting result.