Source for standardized audio files for an experiment in German You can try dwds.de (e.g., dwds.de/?qu=eins&view=1). Their audio samples sound quite good, although I do not know whether this is a 'standardized' corpus. However, it is in German only, i.e., you need to know the German translation of the numbers you want to have. Furthermore, I do not know how to rip the audio samples from the site.