Playback device and program

Abstract

The audio playback is controlled in accordance with the zooming in of the image or the movement of the zoomed-in area. [Solution] The playback device 10 includes an operation input processing unit 141 that outputs display area information for controlling the display position in the image constituting the video stream, a display control unit 142 that displays all or part of the image on the display unit 12 based on the display area information, and an audio control unit 143 that controls the playback of audio from multiple sound sources based on the display area information and sound source position information relating to the position of each of the multiple sound sources included in the image constituting the video stream.

Claims

1. A playback device that plays a video stream and an audio stream consisting of the sounds of multiple sound sources included in the images constituting the video stream, An operation input processing unit outputs display area information for controlling the display position in the image in response to an operation to enlarge a portion of the image or to move the area to be enlarged. A display control unit that displays the entire or a part of the image on the display unit based on the display area information, A playback device comprising: an audio control unit that controls the playback of audio from a plurality of sound sources based on the display area information and sound source position information relating to the position of each of the plurality of sound sources.

2. In the regeneration apparatus according to claim 1, The aforementioned audio control unit, Based on the display area information, the three-dimensional position coordinates of the viewer in the audio space where the audio is played are calculated. Based on the sound source location information, the three-dimensional position coordinates of each of the multiple sound sources in the sound space are calculated. A playback device that controls the playback of audio from multiple sound sources based on the three-dimensional position coordinates of the viewer and the three-dimensional position coordinates of each of the multiple sound sources.

3. In the regeneration apparatus according to claim 2, The audio control unit controls the playback of the plurality of sound sources such that the sound of the sound source at the position corresponding to the subject included in the image displayed on the display unit is louder than the sound of the other sound sources.

4. In the regeneration apparatus according to claim 1, The audio control unit controls the range in which the sound of the sound source can be heard and the position of the sound source based on the horizontal-to-vertical ratio of the video display that displays the video stream, and is a playback device.

5. A program that causes a computer to function as the playback device described in claim 1.

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