Accumulation Theory of Binaural-Masked Thresholds

Two models describing binaural-masked thresholds (the delay-line model and the EC model) are checked by extended experiments. They prove only a limited validity. Therefore, a new model, the accumulation model, is proposed, one that does not use any delay at all and that is, therefore, able to process interaural differences on a more general basis. It is in full agreement with former calculation schemes for monaural-masked thresholds. This model explains all effects in binaural masked thresholds known so far. Binaural-masked thresholds computed according to this model are in good agreement with experimental data.