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Official Journal of the Asia Oceania Geosciences Society (AOGS)

Fig. 7 | Geoscience Letters

Fig. 7

From: Processing of volcano infrasound using film sound audio post-production techniques to improve signal detection via array processing

Fig. 7

Histograms of pixels and families per 5° bins from 0 to 360, for the station I04AU. The back azimuth for the volcano is 6° (dashed line). In the left column are the results for number of pixels within families per 5° bin for no noise reduction (top) and a batch noise reduction by station (bottom), the bins highlighted in red are around the known back azimuth (0°–10°). In the right column are the number of families for both no noise reduction (top) and batch noise reduction (bottom), again the bins around the known back azimuth are highlighted in red

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