Speech recognition information acquisition method

The invention provides a speech recognition information acquisition method, and relates to the technical field of speech recognition, and the method comprises the following steps: S1, obtaining a speech signal, in the step, collecting the speech signal recorded by a user through a microphone by a user terminal, introducing a real-time sampling rate detection technology to further improve the robustness of a system, and obtaining the speech signal; according to the technology, the actual sampling rate of the voice signal can be determined by analyzing the sampling interval of the signal. According to the invention, real-time sampling rate detection is introduced, so that signal processing is more accurate, then conversion and fast Fourier transform are carried out on voice signals, and a digital filter is applied, so that frequency spectrum information is clearer, noise interference is powerfully removed, and in the pre-processing stage, the frequency spectrum information is more accurate. And through comprehe