Room acoustic transition time based on reflection overlap.

Room acoustic transition time based on reflection overlap (L)

مدل‌سازی بازشناسی واجی کلمات فارسی

Abstract of spoken word recognition is proposed. This model is particularly concerned with extraction of cues from the signal leading to a specification of a word in terms of bundles of distinctive features, which are assumed to be the building blocks of words. In the model proposed, auditory input is chunked into a set of successive time slices. It is assumed that the derivation of the underly...

Quantification and Subjective Perception of Varying Reflection Densities in Measured Room Impulsed Responses

This project focuses on quantifying and testing the subjective perception of reflection densities, or the number of reflections per second, from different room impulse responses. The widely used room acoustic metric, reverberation time, is linked to the perceived reverberation in a room. Two different rooms having the same reverberation time, though, can have different reflection densities in t...

Sound Tracing: Rendering Listener Specific Acoustic Room Properties

We present an acoustic rendering approach visualizing the listener-specific contribution of frequency-dependent pressure fields on a scene geometry with acoustic reflection and scattering properties. Our method facilitates the evaluation of simulated acoustics showing the effect of simulation parameters like absorption and scattering. The image-based spatial localization of acoustic properties ...

19th INTERNATIONAL CONGRESS ON ACOUSTICS MADRID, 2-7 SEPTEMBER 2007 PREDICTION OF SPEECH INTELLIGIBILITY ALONG UNDERGROUND PLATFORMS USING A WEB BASED MODEL

Over the last 5 years a computer prediction model based on a web browser has been developed, www.whyverne.co.uk; first to predict sound levels in rooms, followed by early decay time and reverberation time. Now Speech Transmission Index (STI) can be calculated for many identical sound sources in any type of room with or without noise control. Comparisons of sound propagation and early decay time...