20 fold time expansion. Figs. A/B show the signal in the time domain, figs. C/D in the frequency domain. While the duration of the expanded signal is 20times longer, the frequency will be reduced respectively; other characteristics like amplitudes and signal shape will be retained.
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Drahkrub  Attribution must include the URL http://de.wikipedia.org/wiki/Benutzer:Drahkrub