Calling device and system for medical patients in hospital

The invention relates to the technical field of voice processing, in particular to a hospital internal medicine patient calling device and system, and the device comprises a calling signal collection module which obtains a plurality of speech segment audio sequences of an internal medicine patient; the voice signal analysis module is used for constructing a call voice weakness coefficient and a call weakness consistency coefficient of each speech segment audio sequence so as to obtain a call weakness characteristic value of each speech segment audio sequence; selecting a call weakness characteristic value to carry out frequency domain analysis, obtaining a call interference degree of each speech segment audio sequence, and constructing a step length factor adaptive value of the call audio sequence by using the call interference degree; the voice signal enhancement module is used for acquiring an enhanced call audio sequence according to the adaptive value of the step length factor in combination with an adapt