Here is one of those recordings from that night. This is a solitary male calling from a roadside pond in Caldwell County, Texas.
The call is a series of bell like "tinks" repeatedly rapidly in succession. It sounds similar to someone striking a metal pipe with a hammer.
In this spectrogram you can see how each call is a upward short slurring "tink" with a series of harmonic overtones.
Choruses of Strecker's Chorus Frogs have been described as sounding similar to a squeaky, old, metal windmill turning rapidly.
Hopefully I will be able to add some more recordings and a photo (!!) next spring.
© Chris Harrison 2012