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. Author manuscript; available in PMC: 2005 Oct 7.
Published in final edited form as: J Acoust Soc Am. 2005 Apr;117(4 Pt 1):2330–2337. doi: 10.1121/1.1863693

FIG. 4.

FIG. 4

Relationship between note duration and number of modulations per note in the spontaneous vocalizations of one male recorded at site 1 in 1994. The curved line is the best-fitting regression through the data.