13 years of speaker recognition research at BUT, with longitudinal analysis of NIST SRE

•We present a “longitudinal study” of all important milestone techniques used in speaker recognition by evaluating on multiple NIST SREs.•We provide aa analysis of difficulty of individual NIST SREs.•We investigate the impact of the amount of training data on performance of particular Speaker Recognition methods.•We evaluate milestone techniques also on the Speakers In The Wild (SITW) and VOiCES challenge datasets, as the amount of- and interest in user-contributed audiovisual content grows.