Measured binaural detection thresholds of a reverberant harmonic complex tone for different truncations of the RIR in the presence of an anechoic bandpass noise with 60 dB SPL from the front are shown (experiment 1). With increasing RIR truncation time the amount of late reflections increases, while a 15 ms window corresponds to only the direct sound without any reflections. Solid lines indicate thresholds for a source at 0°, dashed lines for a source at 60°. Blue circles show the median thresholds of the tested participants for an absorption coefficient of 0.5 and red triangles for an absorption coefficient of 0.1. Errors are given as upper and lower quartiles.