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Message: <blockquote data-quote="griffin" data-source="post: 1194894" data-attributes="member: 34828">Hi Niels,Good recording ! The sonogram is okay, but it depends how much detail you need and what you are using the sonograms for. I use Raven Pro and Raven Lite (free) and with both of these you can "sharpen" the resolution of the notes in the 'gram. Of course like everything you can overdo it and I try to stick to the same level of sharpening with each file.You can see some crossbill sonograms my wife did with the Remembird on my blog here:<a href="http://pinemuncher.blogspot.com/2008/03/do-you-remembird-when-we-met.html" target="_blank">http://pinemuncher.blogspot.com/2008/03/do-you-remembird-when-we-met.html</a>Cheers,LindsayPS Some scale indication on the axes would be useful - is that a trace of artefact at 11025khz like appears on some of my recordings ?</blockquote>