منابع مشابه
19 th INTERNATIONAL CONGRESS ON ACOUSTICS
Sabine and Eyring equations are commonly used to estimate the reverberation time (RT) in concert halls. Derivations of the two equations are based on well-defined and different physical assumptions, and they are both slightly different from the realistic condition in actual halls. In many researches so far, comparatively simple room shapes have been utilized to study the question on which equat...
متن کاملINTERNATIONAL CONGRESS ON ACOUSTICS MADRID , 2 - 7 SEPTEMBER 2007 Simulating distance
A series of behavioral experiments examined what cues listeners use to judge distance of nearby sources in reverberant spaces. Results show that, in real environments, reverberation aids performance even for sources within a meter of the listeners, where reverberant energy is relatively low compared to the direct sound. When simulating the same conditions using binaural head-related impulse res...
متن کاملInternational Congress on Acoustics Madrid , 2 - 7 September 2007 Complex Dynamics in a Magnetoacoustic Resonator
The parametric generation of ultrasound resulting from magnetoelastic interactions in a ferromagnetic material driven by an alternating magnetic field is considered. We present a dynamical model taking into account both purely magnetic and magnetoacoustic nonlinearities, wich describes the response to a non-resonant (detuned) excitation. The stability of the stationary solutions is analyzed. Th...
متن کامل19 th INTERNATIONAL CONGRESS ON ACOUSTICS MADRID , 2 - 7 SEPTEMBER 2007 TOWARDS POLYPHONIC MUSICAL INSTRUMENTS RECOGNITION
Automatic musical instrument recognition is a relatively new topic in the growing field of Music Information Retrieval. Early studies mostly focused on instrument recognition from recordings of isolated notes. More recently, some studies tackled the problem of musical phrases played in solo (i.e. without accompaniment) which better covers the timbre variability of a given instrument. However, t...
متن کاملInternational Congress on Mental Health
As reported in previous issues of Mental Health, arrangements are being made to hold, under the auspices of the National Association for Mental Health and in co-operation with the International Committee for Mental Hygiene, an International Congress on Mental Health in London in August, 1948. The dates originally fixed were August 12th to 21st, but the Committees responsible for the Child Psych...
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ژورنال
عنوان ژورنال: Nature
سال: 1959
ISSN: 0028-0836,1476-4687
DOI: 10.1038/1841031a0