1. A prosody editing apparatus comprising: a storage configured to store attribute information items of phrases and one or more first prosodic patterns corresponding to each of the attribute information items of the phrases; a search unit configured to search the storage for one or more second prosodic patterns corresponding to an attribute information item that matches an attribute information item of a predetermined phrase, the second prosodic patterns being included in the first prosodic patterns; a mapping unit configured to map each of the second prosodic patterns on a low dimensional space to generate mapping coordinates, the mapping coordinates being used to suppress a first prosodic pattern which is not assumed normally, wherein a first distance between coordinates of the first prosodic pattern and coordinates of a target prosodic pattern is not within a first threshold; a selection unit configured to obtain coordinates selected from the mapping coordinates as selected coordinates; a restoring unit configured to restore a second prosodic pattern according to the selected coordinates to obtain a restored prosodic pattern; and a replacing unit configured to replace prosody of synthetic speech generated based on the predetermined phrase by the restored prosodic pattern.
1. A prosody editing apparatus comprising: a storage configured to store attribute information items of phrases and one or more first prosodic patterns corresponding to each of the attribute information items of the phrases; a search unit configured to search the storage for one or more second prosodic patterns corresponding to an attribute information item that matches an attribute information item of a predetermined phrase, the second prosodic patterns being included in the first prosodic patterns; a mapping unit configured to map each of the second prosodic patterns on a low dimensional space to generate mapping coordinates, the mapping coordinates being used to suppress a first prosodic pattern which is not assumed normally, wherein a first distance between coordinates of the first prosodic pattern and coordinates of a target prosodic pattern is not within a first threshold; a selection unit configured to obtain coordinates selected from the mapping coordinates as selected coordinates; a restoring unit configured to restore a second prosodic pattern according to the selected coordinates to obtain a restored prosodic pattern; and a replacing unit configured to replace prosody of synthetic speech generated based on the predetermined phrase by the restored prosodic pattern. 5. The apparatus of claim 1 , wherein the attribute information items each includes a phoneme sequence which indicates a character string of the phoneme of the phrase, and the search unit searches for whether or not a phoneme sequence of the predetermined phrase matches a phoneme sequence of the phrase.