Data creation method and data creation program

A data creation method used in a camera system including an imaging apparatus, and a plurality of microphones which are provided outside the imaging apparatus and connected to the imaging apparatus, the method comprising:

• an association step of associating the microphone with each subject possessing each of the microphones;
• a recording step of recording moving image data using the imaging apparatus;
• a sound recording step of recording sound data of each subject using each of the microphones in synchronization with a start of the recording step;
• a detection step of automatically detecting, by image processing, a state of the subject during the recording step;
• a synthesis step of synthesizing the sound data and the moving image data;
• and
• an adjustment step of automatically adjusting a volume of the sound data of each subject based on a result of the detection step, before or after the synthesis step, wherein
• in the detection step, a state where the subject is speaking in the moving image data is recognized by image processing, and
• in the adjustment step, a volume of the sound data of a subject that is not speaking is relatively decreased with respect to a volume of the sound data of another subject,
• wherein the identification code is displayed with the moving image data displayed on a display unit.