Sprachlabor/Speechlab combine a multimedial introduction to speech science with a complete data base of the German/English phonemes. Each phoneme is represented by videos, X-ray, sagittal view, palatogram, spectrogram, lpc, oscillogram, IPA-sign, speech sample and a short description. Also included is a speech analysis program to display speech signals, spectrogram and FFTs.

Finally there is a large bibliography with more than 4000 entries of linguistic / phonetic papers.