Abstract: A voice synthesis apparatus is provided. The voice synthesis apparatus includes: an electrode array configured to, in response to voiceless speeches of a user, detect an electromyogram (EMG) signal from skin of the user; a speech activity detection module configured to detect a voiceless speech period of the user; a feature extractor configured to extract a signal descriptor indicating a feature of the EMG signal for the voiceless speech period; and a voice synthesizer configured to synthesize speeches by using the extracted signal descriptor.

Abstract: A method of determining emotion information from a voice is provided. The method includes receiving a voice frame obtained by converting a sound generated by a user into an electrical signal, detecting phonation information and articulation information, the phonation information being related to phonation of the user and the articulation information being related to articulation of the user, from the voice frame, and determining user emotion information corresponding to the phonation information and the articulation information.