Audio data processing apparatus, audio apparatus, and audio data processing method

An audio data processing apparatus that receives audio data corresponding to sound generated by a moving virtual sound source, a position of the virtual sound source, and a position of a speaker emitting sound on the basis of the audio data and that corrects the audio data on the basis of the position of the virtual sound source and the position of the speaker, the apparatus comprising:

• a calculating section calculating first and second distances measured at two time points from the position of the speaker to the position of the virtual sound source;
• a comparing section comparing the first and the second distances with each other;
• an identifying section, when the first and the second distances are different from each other as a result of comparison, identifying a distorted part in the audio data at the two time points;
• and
• a correcting section performing different correction on the audio data of the identified part depending on approaching or departing of the virtual sound source relative to the speaker.

An audio apparatus that uses audio data corresponding to sound generated by a moving virtual sound source, a position of the virtual sound source, and a position of a speaker emitting sound on the basis of the audio data and that thereby corrects the audio data on the basis of the position of the virtual sound source and the position of the speaker, the apparatus comprising:

• a digital contents input part receiving digital contents containing the audio data and the position of the virtual sound source;
• a contents information separating part analyzing the digital contents received by the digital contents input part and separating audio data and position data of the virtual sound source contained in the digital contents;
• an audio data processing part, on the basis of the position data of the virtual sound source separated by the contents information separating part and position data of the speaker, correcting the audio data separated by the contents information separating part;
• and
• an audio signal generating part, on the basis of the corrected audio data, generating an audio signal to the speaker, wherein
• the audio data processing part includes:
• a calculating section calculating first and second distances measured at two time points from the position of the speaker to the position of the virtual sound source;
• a comparing section comparing the first and the second distances with each other;
• a identifying section, when the first and the second distances are different from each other as a result of comparison, identifying a distorted part in the audio data at the two time points;
• and
• a correcting section performing different correction on the audio data of the identified part depending on approaching or departing of the virtual sound source relative to the speaker.

An audio data processing method employed in an audio data processing apparatus that receives audio data corresponding to sound generated by a moving virtual sound source, a position of the virtual sound source, and a position of a speaker emitting sound on the basis of the audio data and that corrects the audio data on the basis of the position of the virtual sound source and the position of the speaker, the method comprising steps of:

• calculating first and second distances measured at two time points from the position of the speaker to the position of the virtual sound source;
• comparing the first and the second distances with each other;
• identifying a distorted part in the audio data at the two time points, when the first and the second distances are different from each other as a result of comparison;
• and
• performing different correction on the audio data of the identified part depending on approaching or departing of the virtual sound source relative to the speaker.

A non-transitory computer-readable medium in which a computer program is recorded causing a computer to receive audio data corresponding to sound generated by a moving virtual sound source, a position of the virtual sound source, and a position of a speaker emitting sound on the basis of the audio data and to correct the audio data on the basis of the position of the virtual sound source and the position of the speaker, the computer program comprising steps of:

• causing the computer to calculate first and second distances measured at two time points from the position of the speaker to the position of the virtual sound source;
• causing the computer to compare the first and the second distances with each other;
• causing the computer to identify a distorted part in the audio data at the two time points, when the first and the second distances are different from each other as a result of comparison;
• and
• causing the computer to perform different correction on the audio data of the identified part depending on approaching or departing of the virtual sound source relative to the speaker.