Laptops White Papers
Energy-Based Sound Source Localization and Gain Normalization for Ad Hoc Microphone Arrays
Overview This paper presents an energy-based technique to estimate both microphone and speaker/talker locations from an ad hoc network of microphones. An example of such ad hoc microphone network is a set of microphones built in the laptops that some meeting participants bring in a meeting room. Compared with traditional sound source localization approaches based on time of flight, the technique does not require accurate synchronization, and it does not require each laptop to emit special signals. This paper estimates the meeting participants positions based on average energies of their speech signals. In addition, the paper presents a technique, which is independent of the volumes of the speakers, to estimate the relative gains of the microphones.
| Publisher | Microsoft | File Format | |
|---|---|---|---|
| Date Published | September 2006 | Downloads | 3 |
| Format | White Papers | ||
| Topics | |||
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