Abstract
One afternoon in 1981, the screen went blank on the laboratory’s real-time digital spectrograph, a recent technological advance at that time. The president and chief engineer of the company selling this spectrograph diagnosed the problem over the phone. “Oh, that’s just the filter board. What are you using the analyzer for? Bird song? For the frequency ranges of your signals you don’t really need the filters. Go ahead and bypass the filter board.” I was worried that an integral component of the machine was not working, but was uncertain about the function of the filter board. If the machine’s designer said the filter was unneccesary, then it must be. I removed the offending circuit board, bypassed the connection, and went back to work.
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© 1998 Springer-Verlag Berlin Heidelberg
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Stoddard, P.K. (1998). Application of Filters in Bioacoustics. In: Hopp, S.L., Owren, M.J., Evans, C.S. (eds) Animal Acoustic Communication. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-76220-8_4
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DOI: https://doi.org/10.1007/978-3-642-76220-8_4
Publisher Name: Springer, Berlin, Heidelberg
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