Compare "echo cancellation and noise suppression (ECNS)" from "echo cancellation and noise reduction (ECNR)" by ChatGPT

Echo cancellation and noise suppression are similar to echo cancellation and noise reduction, but with a subtle difference in their goals. Echo cancellation and noise suppression algorithms are designed to remove both echoes and unwanted background noise from an audio signal. However, while noise reduction algorithms aim to reduce the noise level as much as possible, noise suppression algorithms aim to only reduce the noise level when speech or other relevant sounds are not present.