Automatic audio source detection for capture devices
AssigneeCyberlink Corp.
InventorsWei-Hsin Tseng, Wen-Hsiang Lee, Huan-Yuan Peng
Life of this patent
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Abstract
A method for selecting an audio source when capturing audio data with at least one capture device includes connecting an audio source to an audio input port of the capture device, turning off the output of the audio source, calculating first signal strengths of the audio signals detected through the audio input ports of the capture device, turning on the output of the audio source, calculating second signal strengths of the audio signals detected through the audio input ports of the capture device, calculating a signal change between the first signal strength and the second signal strength of each audio input port, and selecting the audio input port with the largest signal change.
Claims28
A method for selecting an audio source when capturing audio data with at least one capture device, the method comprising:
- connecting an audio source to an audio input port of the capture device;
- turning off the output of the audio source;
- calculating first signal strengths of the audio signals detected through the audio input ports of the capture device;
- turning on the output of the audio source;
- calculating second signal strengths of the audio signals detected through the audio input ports of the capture device;
- calculating a signal change between the first signal strength and the second signal strength of each audio input port;
- and
- selecting the audio input port with the largest signal change.
An audio source detection system, comprising:
- at least one capture device with a plurality of audio input ports for receiving audio signals;
- a strength calculation unit for calculating signal strengths of the audio signals detected through the audio input ports of the capture device;
- a first memory space for storing the first signal strengths of the audio signals detected through the capture device calculated while the output of the audio source is turned off;
- a second memory space for storing the second signal strengths of the audio signals detected through the capture device calculated while the output of the audio source is turned on;
- a signal change calculation unit for calculating a signal change between the first signal strength and the second signal strength of each audio input port;
- and
- a selection unit for selecting the audio input port with the largest signal change.
A method for selecting an audio source when capturing audio data with at least one capture device, the method comprising:
- connecting an audio source to an audio input port of the capture device;
- calculating signal strengths of the audio signals detected through the audio input ports of the capture device;
- and
- selecting the audio input port with the highest signal strength.
An audio source detection system, comprising:
- at least one capture device with a plurality of audio input ports for receiving audio signals;
- a strength calculation unit for calculating signal strengths of the audio signals detected through the audio input ports of the capture device;
- and
- a selection unit for selecting the audio input port with the highest signal strength.
A method for selecting an audio source when capturing audio data with at least one capture device, the method comprising:
- connecting an audio source to an audio input port of the capture device;
- turning off the output of the audio source;
- calculating signal strengths greater than a threshold of the audio signals detected through the audio input ports of the capture device;
- recording the detected audio input ports;
- turning on the output of the audio source;
- determining if at least one audio input port each with the signal strength greater than the threshold other than the recorded audio input ports is newly detected;
- and
- selecting the newly detected audio input port.
Dependencies are inferred from the claim text.