Exploration of Analyzing Emotion Strength in Speech Signal

A method to measure the emotion strength in speech was proposed in the paper. Firstly, it was assumed that neutral speech doesn´t contain any emotion and then the speech emotion shifting assumption was proposed. A measure function was determined by maximizing the speech emotion shifting assumption, by which quantification values of speech samples were calculated. A speech database with different emotion strength levels was built in the order of verifying the emotion strength analysis method. The experimental results showed that the method is reasonable for measuring the emotion strength in speech.