The graduate school IGRA (Interaction of grammatical building blocks; speaker: Gereon Müller) aims at investigating the interaction of rules, operations, constraints, schemata, and extralinguistic factors in the phonology, morphology, and syntax of natural languages. Within the IGRA research program, four main types of interactions are identified: excitatory sequential interactions (feeding, counter-bleeding), inhibitory sequential interactions (bleeding, counter-feeding), inhibitory simultaneous interactions (competition), and excitatory simultaneous interactions (cooperation).


RuReg is an acoustic speech database containing Russian dialect recordings from numerous regions in Russia, including the European North, South and the Far East. With several hundred hours of recordings accumulated on over 50 field trips led by Christian Sappok since 1991, RuReg is one of the largest digital collections of Russian regional speech available. A key feature of RuReg is that the data are made freely accessible to a broad audience through an online interface which allows users to listen to or download the recordings. No registration is required. Furthermore, RuReg uses a unique reference code system, RuReg encourages users to cite small parts or whole recordings in a scientifically adequate manner. The website is still under construction, more content will be uploaded soon.

Urban Voices

The scientific network Urban Voices (funded by the DFG; speaker: Nadine Thielemann) seeks to explore sociolinguistic variation in everyday face-to-face-communication in German and Russian cities, particularly in the cities of Hamburg and St. Petersburg. The network brings together researchers from different fields using a wide array of linguistic methods on a common set of natural recorded data.

Sound Comparisons

Sound Comparisons is a database and resource for exploring diversity in phonetics across language families from around the world. Built in 2001 as a small study on Quechuan by Paul Heggarty, it now covers hundreds of regional varieties in South America, Europe, and Vanuatu.