late reverberation
Late Reverberation Synthesis: From Radiance Transfer to Feedback Delay Networks
... model late reverberation due to their capacity to generate exponentially decaying dense ...the late reverberation modeled by this method is in good agreement with the virtual geometry ...
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Autoregressive Moving Average Modeling of Late Reverberation in the Frequency Domain
... Index Terms—Statistical room acoustics, late reverberation, Gaussian random process, autoregressive moving average model. I. I NTRODUCTION When an audio source is recorded in a reverberant envi- ronment, ...
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3D real-time auralization with separate rendering of direct sound, reflections and directional late reverberation
... ABSTRACT Auralization in room acoustics is created by the convolution of an anechoic audio signal with the RIR (room impulse response), either computed or measured at the receiver location. This paper addresses the ...
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Multichannel Audio Source Separation with Probabilistic Reverberation Priors
... Compared with the large number of constraints that have been proposed about the sources, only a few methods consider priors on the spatial mixing parameters (i.e. the mixing filters or the spatial covariance matrices). ...
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Research report on unified stochastic reverberation modeling
... the late reverberation: after a time called transition time [2], [3], reflections are so frequent that they form a continuum and, because the sound is partially absorbed by the room surfaces at every ...
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Hybrid models for acoustic reverberation
... 5.3 Final Gathering Schemes In [ Antani et al. , 2012a , b ], rays are uniformly sent from the listener and collected at each patch to calculate the energy response at the final gathering stage, using a reciprocity ...
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Unified Stochastic Reverberation Modeling
... with the Poisson distribution proposed by Polack, and to show how the probability distribution of the RIR, which is impulsive in early reverberation, converges to the Gaussian distribution in late ...
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Stochastic reverberation model for uniform and non-diffuse acoustic fields
... Note that, since function f 7→ ρ i,j (t, f, x j − x i ) is even symmetric, σ i,j (τ, x j − x i ) ∈ R ∀τ ∈ R. III. M ATHEMATICAL ANALYSIS In this section, we analyze the statistical properties of the stochastic model ...
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Joint NN-Supported Multichannel Reduction of Acoustic Echo, Reverberation and Noise
... We evaluate the proposed joint approach in terms of the overall distortion, which is measured with the scale-invariant signal-to-distortion ratio (SI-SDR) [46]. The overall distortion takes the three distortion sources ...
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Universal behaviour of a wave chaos based electromagnetic reverberation chamber
... chaos, reverberation chamber, cavity Green’s function, ray chaotic enclosure, electromagnetic compatibility, immunity/emission testing ...Electromagnetic reverberation chambers (RC) are nowadays commonly ...
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A Probabilistic Approach to Susceptibility Measurement in a Reverberation Chamber
... emmanuel.amador@insa-rennes.fr Abstract—In this article, we propose an alternative approach for measuring the susceptibility level of an equipment under test in a reverberation chamber. Instead of using a ...
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Tolerance requirements revisited for the calibration of chaotic reverberation chambers
... chaotic reverberation chambers ...chaotic reverberation chambers can ideally meet the requirement of statistically isotropic, uniform and depolarized response fields due to so-called ergodic modes which are ...
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Study of a reverberation chamber shape inspired from chaotic cavities
... Besides the normal distribution of its components, the field is also required to be isotropic in a well-operating reverberation chamber. We recall that an ergodic field is also isotropic. The field isotropy will ...
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Antenna efficiency measurement from quality factor estimation in reverberation chamber
... Figure 3. Reflection coefficient, radiation and total efficiency of an horn antenna obtained with the Q-method. IV. V ALIDATION All experiments have been carried out in the IETR large reverberation chamber whose ...
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Discrimination thresholds of the reverberation in large volumes by naïve listeners
... Reverberation is one of the main perceptual dimensions allowing to rate and to discriminate the acoustics of ...the reverberation, experiment design and experience of the ...The reverberation time ...
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Impulse-response and reverberation-decay measurements made by using pseudorandom sequence
... For comparison, a decay curve obtained by exciting the room with a filtered m- sequence signal and using the Bruel & Kjaer analog octave-band filter is also depicted in Fig.. [r] ...
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EVALUATION OF A STOCHASTIC REVERBERATION MODEL BASED ON THE IMAGE SOURCE PRINCIPLE
... 2.3. Properties The main difference between the exponentially decreasing Gaus- sian model in (2) and the Poisson point process model in (5) is the treatment of the early reflections. Fig. 2 shows that, in an ideal RIR, ...
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Statistics of the electromagnetic response of a chaotic reverberation chamber
... 1. Introduction The electromagnetic (EM) reverberation chambers (RC) are commonly used for electromagnetic compatibility tests. Thanks to the presence of a mechanical stirrer and losses leading to modal overlap, ...
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Exploring Late Pleistocene climate variations
... The stratigraphically best-resolved records for the last climate cycle have been derived from two cores drilled at the summit of Greenland.The Greenland Ice Sheet Project 2 (GISP2) a[r] ...
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Putative Late Ordovician land plants
... the Late Ordovician–early Silurian, leading to the decrease of cryptospores and increase in diversity of trilete spores, was attributed to the initial radiation of vascular or pre-vascular plants (Steemans et ...
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