Signal Enhancement for the SPID Corpus
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In order to cancel the noise introduced by the ambiance simulation, an adaptive filter based noise cancellation algorithm was applied to the recordings of the SPID corpus. Furthermore, a frequency-domain noise and cross-talk suppression was applied. The two time and time-frequency pots below show examples. The enhanced as well as the original signals are available for the entire corpus parts where the ambiance simualtion was used.
Original Recording

Enhanced Recording


Science Day took place in Kiel and at the Faculty of Engineering on 25 September 2026. The DSS group contributed two demonstrations that gave visitors an insight into current research on signal processing, underwater acoustics and speech signals.