Enhancing Speech Signals Based on an MEMS Microphone Array and Temporal Differences in the Incoming Signal
2022
scientific article
english
- microphone array
- speech enhancement
- direction of arrival
- signal processing
EN The development of the Internet of things and automatisation in everyday life also influences our houses. There are more and more devices on the market which can be controlled remotely. One kind of such control involves the use of voice signals. This method tends to use microphone arrays and dedicated algorithms to enhance the speech signal and recognize the words in it. In this project, a small 5-microphone array was developed. To enhance the quality of the signal, dedicated software was written. It consists of several modules, including the direction of arrival estimation, denoising, and differentiation between adults and children. The results showed that the custom algorithm can increase the signal to noise ratio by up to 6 dB.
2022202-1 - 2022202-8
article number: 2022202
CC BY (attribution alone)
open journal
final published version
public
70