Publications by authors named "Vahid Delaram"
Introduction: We currently lack speech testing materials faithful to broader aspects of real-world auditory scenes such as speech directivity and extended high frequency (EHF; > 8 kHz) content that have demonstrable effects on speech perception. Here, we describe the development of a multidirectional, high-fidelity speech corpus using multichannel anechoic recordings that can be used for future studies of speech perception in complex environments by diverse listeners.
Design: Fifteen male and 15 female talkers (21.
Gender and language effects on the long-term average speech spectrum (LTASS) have been reported, but typically using recordings that were bandlimited and/or failed to accurately capture extended high frequencies (EHFs). Accurate characterization of the full-band LTASS is warranted given recent data on the contribution of EHFs to speech perception. The present study characterized the LTASS for high-fidelity, anechoic recordings of males and females producing Bamford-Kowal-Bench sentences, digits, and unscripted narratives.
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- * The study examined how differences in EHF content between the main speaker (target) and background speakers (maskers) affect speech understanding.
- * Results indicated that better performance occurred when the target speaker had full frequency audio while the masker was low-pass filtered, suggesting that EHF audibility helps in identifying and focusing on the main speaker, but the same benefits weren't found for the masker EHF content.