Apparatus and method for transforming audio characteristics of an audio recording

摘要

A method of audio processing comprises composing one or more transformation profiles for transforming audio characteristics of an audio recording and then generating for the or each transformation profile, a metadata set comprising transformation profile data and location data indicative of where in the recording the transformation profile data is to be applied; the or each metadata set is then stored in association with the corresponding recording. A corresponding method of audio reproduction comprises reading a recording and a meta-data set associated with that recording from storage, applying transformations to the recording data in accordance with the metadata set transformation profile; and then outputting the transformed recording.

主权项

1. A method of audio processing comprising the steps of:
composing one or more transformation profiles for transforming audio characteristics of an audio recording; generating, for each of the one or more transformation profiles, a metadata set comprising respective transformation profile data and location data indicative of where in the recording the transformation profile data is to be applied; storing each metadata set in association with the corresponding recording; selecting which associated metadata set is to be read from storage according to a degree of correspondence between emotion data in the metadata sets and one or more current emotion parameters in an application; applying random variations to the emotion data in the selected metadata sets; prior to composing the one or more transformation profiles, identifying locations of speech syllables in the recording; and adjusting one or more of intensity, pitch and duration transformation profiles extracted from the selected metadata.