Glimpsing models quantify target audibility by time-frequency tiles where target exceeds masker

Evidence

Simple energy-based analyses have been used to quantify the available target in monaural speech mixtures (e.g. the ideal binary mask described by Wang 2005 ; ideal time-frequency segregation as explored by Brungart et al. 2006 ; and the glimpsing model of Cooke 2006 ). The basic approach is to identify regions in the time-frequency plane where the target energy exceeds the masker energy. The number of these glimpses is reduced as the SNR decreases, or as more masker talkers are added to the mixture. To define the available glimpses in symmetric binaural mixtures, we simply applied a monaural glimpsing model separately to the two ears. For symmetric listening situations, the glimpses can occur in either ear, and often occur in both ears for a particular time-frequency tile. — Dijk, Pim van, Physiology, Psychoacoustics and…, 1756

Categorization

• DEFINE: Defines the glimpse/glimpsing model approach to computing target availability in speech mixtures.
• SHARE: A colleague working in speech-perception modeling would appreciate the succinct comparison of the ideal binary mask, time-frequency segregation, and glimpses.
• corroborated: 2 independent passages support this claim — Dijk, Pim van, Physiology, Psychoacoustics and…, 1756