Abstract: The disclosure relates to a voice signal analysis method and device and a chip design method and device. The voice signal analysis method includes: in a first updating gradient, training a resolution recovery model by using first voice training data meeting a same grouping condition in multiple mission sets; in a second updating gradient, training the resolution recovery model by interleavingly using second voice training data meeting different grouping conditions in the mission sets; iteratively executing the first and second updating gradients to set an initial model parameter of the resolution recovery model; and recovering a high-resolution snore signal from a low-resolution snore signal by using the resolution recovery model. The low-resolution snore signal has a lower resolution than the high-resolution snore signal.