The CALLFRIEND project
supports the development of language identification technology.
The corpus consists of 60 unscripted telephone conversations,
lasting between 5-30 minutes. The corpus also includes
documentation describing speaker information (sex, age, education,
callee telephone number) and call information (channel quality, number
For each conversation, both the caller and callee are native speakers
of German. All calls are domestic and were placed inside the
continental United States and Canada.
There are no updates at this time.