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Enhanced Sound Localization
| Content Provider | CiteSeerX |
|---|---|
| Abstract | Abstract—A new approach to sound localization, known as enhanced sound localization, is introduced, offering two major benefits over state-of-the-art algorithms. First, higher localization accuracy can be achieved compared to existing methods. Second, an estimate of the source orientation is obtained jointly, as a consequence of the proposed sound localization technique. The orientation estimates and improved localizations are a result of explicitly modeling the various factors that affect a microphone’s level of access to different spatial positions and orientations in an acoustic environment. Three primary factors are accounted for, namely the source directivity, microphone directivity, and source-microphone distances. Using this model of the acoustic environment, several different enhanced sound localization algorithms are derived. Experiments are carried out in a real environment whose reverberation time is 0.1 seconds, with the average microphone SNR ranging between 10–20 dB. Using a 24-element microphone array, a weighted version of the SRP-PHAT algorithm is found to give an average localization error of 13.7 cm with 3.7 % anomalies, compared to 14.7 cm and 7.8 % anomalies with the standard SRP-PHAT technique. Index Terms—Microphone arrays, sound localization, source tracking. I. |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | Acoustic Environment Localization Accuracy Sound Localization Technique Improved Localization Real Environment Source-microphone Distance Orientation Estimate Average Microphone Snr Major Benefit Source Orientation Sound Localization Source Directivity Srp-phat Algorithm 24-element Microphone Array State-of-the-art Algorithm Average Localization Error Reverberation Time Weighted Version Index Term Microphone Array Source Tracking Microphone Level Standard Srp-phat Technique Microphone Directivity Different Spatial Position Primary Factor Various Factor Sound Localization Algorithm |
| Content Type | Text |
