Arrangement and method for audio source tracking
First Claim
1. A method of localizing a position of an audio source relative to a camera, comprising steps of:
- determining a position of the audio source relative to at least one of a microphone and array of microphone elements;
geometrically deriving a second distance and direction between the camera and one of the at least one of the microphone and array of microphone elements, geometrically deriving a first distance and direction between the camera and the audio source from the position of the audio source relative to one of the at least one the microphone and array of microphone elements and said second distance and direction.
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Accused Products
Abstract
An arrangement and a method of localizing active speakers in a video conference includes a localization device that locates at least one microphone relative to the camera, while the at least one microphone in turn localizes the relative positions of audio sources. As the microphones are usually positioned close to the audio source in a video conference, the ratio of the distance between microphones relative to the distance between table microphone and audio source is reduced. Thus, the microphones are able to determine the positions of the audio sources with a higher resolution than if placed close to the camera. When the respective positions of the microphones relative to the camera and the audio source are known, the position of the audio source relative to the camera is then determined by means of geometrical calculations.
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Citations
14 Claims
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1. A method of localizing a position of an audio source relative to a camera, comprising steps of:
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determining a position of the audio source relative to at least one of a microphone and array of microphone elements;
geometrically deriving a second distance and direction between the camera and one of the at least one of the microphone and array of microphone elements, geometrically deriving a first distance and direction between the camera and the audio source from the position of the audio source relative to one of the at least one the microphone and array of microphone elements and said second distance and direction. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An arrangement for localizing a position of an audio source relative to a camera that determines a position of the audio source relative to at least one of a microphone and an array of microphone elements, including:
a control unit that geometrically derives a first distance or direction between the camera and the audio source from the position of the audio source relative to at least one of the microphone and array of microphone elements and a second distance or direction between the camera and one of the at least one of the microphone and array of microphone elements. - View Dependent Claims (9, 10, 11, 12, 13, 14)
Specification