Events

DAGA 2012, Germany - 19-22th March 2012

Microflown Technologies booth at DAGA 2012: L7 & L8

We will also present a paper:

"Charactersing directivity patterns of non-stationary sound sources with scanning techniques"

Scanning techniques allow reducing significantly the number of sensors required to characterise a time-stationary sound field. Therefore, it is possible to produce sound maps by moving a transducer and tracking its position along the measurement. Conventionally, any change during the measurement would be not taken into account and non-stationary conditions are not suitable for measuring with scanning methods. However, this paper explores the advantages of using a static reference sensor close to the noise source in order to track any variations in the sound field during the measurement. The technique developed is based on taking transfer functions between the scanning transducer and the reference sensor. Then, the number of positions measured is limited for each frequency evaluating the dynamic range acquired. Some experimental results of mapping sound radiation patterns of a musical instrument are presented along with a discussion focused on the advantages and disadvantages of the method.

Presentor: Daniel Fernandez Comesaña

We are looking forward to meet you there.

Internoise 2012

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