Peter Jones, "Hampshire Diary"

Sunday, August 17, 2008 - Using Zoom H2 to produce sonagrams.

Really pleased with the results below captured using my Zoom H2 recorder and it's built in mics. Both birds were calling fairly faintly against a backdrop of windy weather, and although the calls were faint to listen to, the sonagrams are fairly clear. Top one is a Chiff Chaff (with smooth increase in pitch and harmonics clearly visible). Bottom one is Willow Warbler (with a flat start and sharp increase in pitch, plus no harmonics equating to a very clear note).