Abstract: Systems and techniques are described herein for processing audio signals. For instance, a process can include receiving a first audio frame associated with a first time frame. The process can further include generating a first time frame feature vector based on the first audio frame. The process can include determining a distance between the first time frame feature vector and a second time frame feature vector. The second time frame feature vector may be generated based on a second audio frame associated with a second time frame, where second time frame is being before the first time frame. The process can further include comparing the distance between the first time frame feature vector and the second time frame feature vector to a threshold distance. The process can include determining whether to skip processing of the first audio frame by an application based on the comparison.