Automatic Speaker Localization and Tracking: Using a Fusion of the Filtered Correlation with the Energy Differential

Speech Database

We have built four experimental databases with different scenarios, different speakers and different configurations:

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  DB8 database: the distance between the two microphones is 4.20 m.

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  DB9 database: the distance between the two microphones is 2 m.

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  DB10 database: the distance between the two microphones is 1 m.

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  DB11 database: the distance between the two microphones is 1 m.

In this paper, we will describe only the experiments done on DB11 database, since the results got with long distances (DB8 and DB9) are very affected by the echo effect, and those obtained on the DB10 are insufficient.

The DB11 database contains several scenarios with different speakers speaking alternatively in a natural manner and with different configurations. There are two general configurations: a stable configuration and a mobile configuration. In the stable configuration, the speakers are seated at one of the 3 fixed positions: Left, Middle or Right (Figure 1.a and Figure 1.b) in a same line. In the mobile configuration, the speaker walks smoothly from one side to the other (e.g., from the left to the right). The distance between the two microphones is 1m, the number of scenarios is 11and the number of speakers is 7 (4 female and 3 male speakers).