Coloration and binaural decoloration of sound due to reflections

  • 148 Pages
  • 2.64 MB
  • 8572 Downloads
  • English
by
A.M. Salomons , Delft
Auditory percep
Statementdoor Aurelia Maria Salomons.
Classifications
LC ClassificationsBF251 .S25 1995
The Physical Object
Paginationvi, 148 p. ;
ID Numbers
Open LibraryOL550833M
ISBN 10905651024X
LC Control Number96132141
OCLC/WorldCa40105078

Include full text. Back. Print; Email; Facebook; TwitterCited by: This article reports on the use of a semantic differential to catch the multidimensional perception of reflections in natural environments.

The results show that two dimensions are dominant for coloration. Furthermore, a method is introduced that predicts one dimension of coloration for diotic stimuli.

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Download PDF: Sorry, we are unable to provide the full text but you may find it at the following location(s): (external link)Author: A.M. (author) Salomons. COLORATION DUE TO REFLECTIONS A distinct/discrete reflection arriving after the direct sound will always give a Comb-filter. For investigations of Comb-filters Comb-Between-Teeth-Bandwidth is defined as the distance in Hz between two Coloration and binaural decoloration of sound due to reflections book dip’s of a comb-filter Size: KB.

87, – ()] and a binaural version of the original method of Allen et al. were considered as reference systems. The results revealed that the proposed coherence-based approach is most successful in acoustic scenarios that exhibit a significant spread in the coherence distribution where direct sound and reverberation can be segregated.

This dereverberation algorithm is thus particularly Cited by: Salomons A () Coloration and binaural decoloration of sound due to reflections, Doct diss. Delft Univ Techn, Delft Google Scholar Sayers B M, Cherry E C () Mechanism of binaural fusion in the hearing of by: Coloration might be the reason why an orchestra/opera hall sounds bad, even if all the common room acoustic parameters show good results.

In this paper, a closer look is taken at the reflections within the time intervals commonly used for the room-acoustic parameters, their contribution to coloration is investigated, and the results are compared with psycho-acoustic by: SOUND COLORATION FROM (VERY) EARLY REFLECTIONS Tor Halmrast Head of Acoustics, Statsbygg,Dep.

N, Oslo, Norway [email protected] ABSTRACT Coloration is defined as changes in Timbre/ ”Klangfarbe”. Adding a reflection automatically changes the frequency response of a signal, giving some kind of. Coloration and binaural decoloration of sound due to reflections The Netherlands Revised estimates of human cochlear tuning from otoacoustic and behavioral measurements Pitch, consonance and.

coloration is mainly a monaural effect; the effect becomes less noticeable as the direct sound and the reflection sources are separated laterally. Zurek () investigated binaural echo suppression (decoloration). With echo delays less than ms.

Abstract. The binaural auditory system performs a number of astonishing functions, such as precise localization of sound sources, analysis of auditory scenes, segregation of auditory streams, providing situational awareness in reflective environments, suppression of reverberance, noise and coloration, enhancement of desired talkers over undesired ones, providing spatial impression and the Cited by: 8.

Coloration and binaural decoloration of sounds due to reflections, Dissertation, TU Delft. Seraphim, H.-P., U ¨ ber die Wahrnehmbarkeit mehrerer Rü ckwü rfe von Sprachschall. Hence, in contrast to binaural reflection enhancement, binaural reflection suppression seems to involve mechanisms that are robust to auditory-internal noise-floor and hearing-impairment.

Moreover, differences between the RMTs for HI- and NH-listeners were in principal agreement with differences expected from changed auditory filter bandwidth and : Jörg M.

Buchholz, Paul G. Mihai. The synthesis of binaural signals from spherical microphone array recordings has been recently proposed.

The limited spatial resolution of the reproduced signal due to order-limited reproduction ha Cited by: The present article describes a reverberation instrument which is based on cognitive categorization of reverberating spaces. Dierent techniques for articial reverberation will be covered.

A multidimensional scaling experiment was conducted on impulse responses in order to determine how humans acoustically perceive spatiality.

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This research seems to indicate that the perceptual dimensions are. The results showed that the echo dimension is mainly influenced by late reflections and the color dimension by early reflections. The binaural decoloration phenomenon is then explained via a blind system identification that tries to identify the spectrum of the room and removes it from the spectrum of the sound source placed in that room.

The reflected signal can cause a perceptible distortion in sound quality. One of the perceptible distortions induced by the reflections is a coloration artifact.

According to Salomons’ definition, “the color of sound signal is that attribute of cochlear sensation in terms of which a listener can judge that two sounds similar presented and having the same loudness are dissimilar”.Cited by: 1. about audio signal coloration February 5, by Variety Of Life 15 Comments In this comprehensive article some deeper explorations and explanations on this topic are given and at the end a brief but handy definition about audio signal coloration is proposed.

Proper Speaker Placement. Salomons (), “Coloration and binaural decoloration of sound due to reflections”, Thesis, Delft University The main line of reasoning is that within the first ms after the direct sound the reflections cause image spread and image shift.

After that 5 ms window the precedence effect chimes in and the. Binaural modeling of coloration perceived due to multiple coherent sources is studied under the condition that sounds arrive at a listener successively within a certain time delay.

The model simulates the perception of coloration of two horizontally located sources under prominent precedence effect conditions. Listening experiments are conducted to ensure the validity of the modeling.

The concert hall conveys orchestral sound to the listener through acoustic reflections from directions defined by the room geometry.

When sound arrives from the sides of the head, binaural hearing emphasizes the same frequencies produced by higher orchestral-playing dynamics, thus enhancing perceived dynamic range. Many studies on room acoustics acknowledge the importance of Cited by: Coloration and Binaural Decoloration of Sound due to Reflections.

• Schärer and Lindau (). “Evaluation of Equalization Methods for Binaural Signals.” • Schultz and Spors (). “Data-Based Binaural Synthesis Including Rotational and Translatory Head-Movements.” • Southern, Wells, and Murphy ().

“Rendering walk-through. Measuring sound coloration due to synthesized room reverberation Noha Korany E. Dept., Faculty of engineering, Al exandria University, Alexandria, Egypt. Fax: +email: [email protected] Abstract The aim of this article is to characterize the sound coloration perceived due to the room reverberation simulated by.

Binaural recording is a method of recording sound that uses two microphones, arranged with the intent to create a 3-D stereo sound sensation for the listener of actually being in the room with the performers or instruments.

This effect is often created using a technique known as "dummy head recording", wherein a mannequin head is outfitted with a microphone in each ear. Written and Illustrated by Jimmy Liao Book Talk and Read Aloud: Elizabeth Fisher ENG   Sound will bounce off the hard enclosures instead of being dispersed by the numerous books and objects held within.

It is often best if you have a minimum of furniture surrounding the area where you place your speakers due to sound wave dispersion and absorption. Not all of us have the luxury of having a dedicated stereo room. * Salomons, “Coloration and binaural decoloration of sound due to reflections”, PHD Thesis, Delft University, Clearly, the above results have to be seen in the context of the room of that particular experiment where reflections from side walls and from behind the listener were absorbed.

Details Coloration and binaural decoloration of sound due to reflections FB2

An efficient run-time uses this precomputed representation to perform binaural sound rendering based on frequency-domain convolution. Our system demonstrates realistic, wave-based acoustic effects in real time, including diffraction low-passing behind obstructions, sound focusing, hollow reverberation in empty rooms, sound diffusion in fully.

What does coloration mean. coloration is defined by the lexicographers at Oxford Dictionaries as The appearance of something with regard to color., A specified pervading character or tone of something.

Binaural recording is a method of recording sound that uses two microphones, arranged with the intent to create a 3-D stereo sound sensation for the listener of actually being in the room with the performers or instruments. This effect is often created using a technique known as "dummy head recording", wherein a mannequin head is outfitted with a microphone in each ear.

Binaural recording. Introduction. Reverberation is defined as the sum total of all sound reflections arriving at a certain point inside an acoustical enclosure after the enclosure has been excited by an impulsive sound signal (Kuttruff, ).When listening to speech inside such an enclosure, the sound reaching the listener's ears consists of the direct sound (DS), early reflections (ERs), and late reflections (LRs).Cited by: color spectrum is usually divided into seven named color bands.

In order of decreasing wavelength, the bands are red, orange, yellow, green, blue, indigo, and violet. You see a color spectrum whenever you see a rainbow. Color Reflection and Absorption The color of an object or material is determined by the wavelengths it absorbs and those it File Size: KB.

Pure color intersects and present lines of color harmonics within its smooth transitions between colors. Accompanying the visuals is an original .