Audio Information Playback Method, Audio Information Playback Device, Audio Information Generation Method and Audio Information Generation Device

An audio information generation method comprising:

• generating audio information which is playable in response to acquisition of note-on information or note-off information and in which waveform data pieces, of each of a plurality of utterance units with defined pitch and order in regard to sound generation, are chronologically sequenced;
• acquiring a singing synthesizing score in which information pieces designating a pitch of a synthesizable singing voice are chronologically sequenced in accordance with progression of a musical piece;
• and
• generating the audio information by synthesizing the singing synthesizing score and associating separator information defining each of a playback start position at which playback starts in accordance with note-on information, a loop start position, a loop end position, and a playback end position at which playback ends in accordance with note-off information in regard to each utterance unit in the singing synthesizing score.

An audio information playback device comprising a hardware processor,

• the hardware processor:
• acquiring audio information in which waveform data pieces, of each of a plurality of utterance units with defined pitch and order in regard to sound generation, are chronologically sequenced, and separator information which is associated with the audio information and defines a playback start position, a loop start position, a loop end position, and a playback end position in regard to each utterance unit, and moving a playback position in the audio information based on the separator information in response to acquisition of note-on information and note-off information;
• and
• starting playback from the playback start position of an utterance unit that is indicated by a moved playback position and subject to playback in response to acquisition of the note-on information, and starting playback from the loop end position of the utterance unit subject to playback to the playback end position in response to acquisition of the note-off information corresponding to the note-on information.

An audio information generation device comprising a hardware processor that generates audio information which is played in response to acquisition of note-on information or note-off information and in which waveform data pieces, of each of a plurality of utterance units with defined pitch and order in regard to sound generation, are chronologically sequenced, wherein

• the hardware processor is configured to:
• acquire a singing synthesizing score in which information pieces designating a pitch of a synthesizable singing voice are chronologically sequenced in accordance with progression of a musical piece;
• and
• generate the audio information by synthesizing an acquired singing synthesizing score, and associating separator information defining each of a playback start position at which playback starts in accordance with note-on information, a loop start position, a loop end position, and a playback end position at which playback ends in accordance with note-off information with the audio information.