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The description on its file description page there is shown below.
Summary
DescriptionRTTY.ogg
The text "Welcome to Wikipedia, the free encyclopedia that anyone can edit." sent as RTTY. It is padded with "idle" bytes, and the first one is not necessarily a complete one. 45.45 baud, central frequency 1000 Hz, shift 170 Hz, 5 data bits (Baudot), no parity, 1.5 stop bits.
I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
Captions
Add a one-line explanation of what this file represents
Original file's RTTY text was cut short between the A and N in "can", according to FLDIGI's decoder. Encoded a complete version with exactly the same parameters, and added original Wikipedia file description to the file's inbuilt metadata.