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A software teacher for acoustical measurements
1998
Journal of the Acoustical Society of America
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A Simple Loudspeaker Measurement Program" is a Computer Based Education (CBE) application for selfstudying of acoustical measurements. ...
The application deals with free field measurements of loudspeakers and related theory. The measurements are made with the program and genuine results are achieved each time. ...
Computers are already basic tools in acoustics and digital signal processing (DSP). Thus it is only natural to start applying them as a tool for education. ...
doi:10.1121/1.421688
fatcat:zinfnc26qrcmra5ivkmdk76f3u
Surround by Sound: A Review of Spatial Audio Recording and Reproduction
2017
Applied Sciences
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In this article, a systematic overview of various recording and reproduction techniques for spatial audio is presented. ...
While binaural recording and rendering is designed to resemble the human two-ear auditory system and reproduce sounds specifically for a listener's two ears, soundfield recording and reproduction using ...
The free-field transformed loudspeaker signals are used in a reverberant room with the filter matrix to compensate the RTFs in matrix , , and represent the forward and backward WDAF, respectively. ...
doi:10.3390/app7050532
fatcat:dndg7bwoerfhzff6ae7y5ygvym
Sound focusing in rooms: The time-reversal approach
2003
Journal of the Acoustical Society of America
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New perspectives in audible range acoustics, such as virtual sound space creation and active noise control, rely on the ability of the rendering system to recreate precisely a desired sound field. ...
This ability to control sound in a given volume of a room is directly linked to the capacity to focus acoustical energy both in space and time. ...
However, this technique can prove very useful in a context of digital communications. For example, using the previously described experimental setup, we can transmit information in a binary form. ...
doi:10.1121/1.1543587
pmid:12656388
fatcat:tx5axoiibjfthpekux533ppzum
Implementation issues of 3D audio in a virtual room
2001
Stereoscopic Displays and Virtual Reality Systems VIII
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The hardware configuration used for sound reproduction is shortly described. We also report the software applications and libraries built for sound signal processing and 3D sound reproduction. ...
This paper presents the audio system built for the virtual room at Helsinki University of Technology. ...
ACKNOWLEDGMENTS This work has been partly supported by the Helsinki Graduate School in Computer Science, the Academy of Finland, and Tekes, the National Technology Agency. ...
doi:10.1117/12.430849
fatcat:qwkbepycgrdyxh72kurfoyutri
Realistic Audio Teleconferencing using Binaural and Auralization Techniques
1996
ETRI Journal
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ACKNOWLEDGMENT The authors wish to express their gratitude to the following persons for their invaluable comments of this paper: Prof. Yochi Ando of Kobe University in Japan, Dr. ...
Peter Damaske in Germany, Dr. David McGrath of Lake DSP Ltd. in Australia, Dr. Shigeaki Aoki of NTT Human Interface Laboratories in Japan, and Prof. Mendel Kleiner of Chalmers University ...
The aim is to auralize music or speech signals with data either from a computer-simulated room impulse response, or from measured impulse responses in an actual room or in a model room. ...
doi:10.4218/etrij.96.0196.0014
fatcat:pxj6xmvlovflpc4dwp3eu4fkfu
Fundamentals of binaural technology
1992
Applied Acoustics
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A model is given that describes the sound transmission from a source in a free field, through the external ear to the eardrum. ...
A method for true reproduction of binaural signals through loudspeakers is also described. A number of topical andprospectedapplications of binaural technology are mentioned. ...
Simulation of public address systems A combination of a room acoustic simulator and a simulator of loudspeaker reproduction can be used to assess public address systems for use in auditoriums, theaters ...
doi:10.1016/0003-682x(92)90046-u
fatcat:w6hzkp6eqnddxbesesfz2iiw7i
A Robust Geometric Approach to Room Compensation for Sound Field Rendering
2014
IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences
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SUMMARY In this manuscript we present a methodology for reducing the impact of the hosting room reflections in sound field rendering applications based on loudspeaker arrays. ...
We include a wide set of experimental results, which validate the proposed technique. key words: active room compensation, sound field rendering, early reflections ...
In order to measure the wave field within the room compensation region we used a measurement system based on a cardioid microphone mounted at the tip of a rotating arm, controlled by a step motor. ...
doi:10.1587/transfun.e97.a.1884
fatcat:25s6qjtzm5ccfepypisnx6rtgu
Application of parametric and non-parametric techniques to electroacoustic transfer function analysis
1994
Journal de Physique IV : Proceedings
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In our point of view, a promising new way is ahead for measurement techniques in the electroacoustic field. ...
Practical results are reported, showing the accuracy obtained through this technique when applied to the measurement of a real full-range loudspeaker system. ...
Analog and digital hardware are not very different amongst the 4 last methods and so is their ability to be used in quiet normal-room conditions. ...
doi:10.1051/jp4:1994558
fatcat:4jkoesaqezgnnb3wfvvydjny3q
Improving room acoustics at low frequencies with multiple loudspeakers and time based room correction
2008
Journal of the Acoustical Society of America
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Simulations and measurements of normal size listening rooms show that 4 loudspeakers are enough to even the sound field in a room. The CABS system is controlled by a developed DSP system. ...
Acoustics 08 Paris 1279 Small and medium size rectangular rooms are often used for sound reproduction. ...
The often used solution for an improvement is equalizing using analog or digital signal processing at the signal send to the loudspeakers, either manually [4] or automatically -often named Room Correction ...
doi:10.1121/1.2932925
fatcat:yungc3h33zhjff376rjqwousrm
Measurement of head movement during auditory localization
1979
Behavior Research Methods & Instrumentation
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To facilitate these measurements, we have developed an optical method for monitoring head movement combined with a video system for recording and preparing the resulting signals for computer processing ...
At a distance of 1 m from the loudspeaker, the environment approximated a free field for frequencies above 500 Hz and was usable with some compromise down to 200 Hz. ...
doi:10.3758/bf03205429
fatcat:eff2t42zbfaqdn3sqhw2amzm2a
Wave Field Synthesis Techniques for Spatial Sound Reproduction
[chapter]
2006
Signals and Communication Technology
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The most important of these aspects is the generation of the correct driving signals for each loudspeaker by suitable digital signal processing. ...
Signal Processing Structure Now that the driving signals for the loudspeakers are determined, the signal processing structure for their production is investigated. ...
doi:10.1007/3-540-33213-8_13
fatcat:vn7peknegvacjf4vhboou4nwjy
Efficient massive multichannel active noise control using wave-domain adaptive filtering
2008
2008 3rd International Symposium on Communications, Control and Signal Processing
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This paper discusses the physical background of an ideal ANC system for noise sources outside and within the ANC system. ...
This idealized system can be realized reasonably well with a high number of channels (massive multichannel ANC). ...
The underlying signal processing techniques used for MIMO ANC systems show fundamental problems for high channel numbers. ...
doi:10.1109/isccsp.2008.4537461
fatcat:bvvs7b6k2naoxoq2u7pa64bnqu
Audio Monitoring in Contemporary Post-Production Environments
2005
SMPTE Motion Imaging Journal
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Signal limiting contours in a biamplified system: (a) low-fre- quency curves; (b) high-frequency curves
Dynamic Signal Processing
Today, powered loudspeaker systems . are very popular, and the majority ...
be revealed by this measurement technique. ...
doi:10.5594/j15151
fatcat:lohzbszpyfhefik2zx7d5vgv3e
A system to simulate and reproduce audio–visual environments for spatial hearing research
2010
Hearing Research
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Playing sounds from loudspeakers in the free-field has the advantage that each participant listens with their own ears, and individual characteristics of the ears are captured in the sound they hear. ...
Room simulation software creates the spatio-temporal reflection pattern of sound sources in rooms which is played via the SOFE loudspeakers. ...
Accurate comparison between normal hearing participants and those using hearing devices is possible because both sit in the same, free sound field generated by the loudspeakers. ...
doi:10.1016/j.heares.2009.11.004
pmid:19909802
pmcid:PMC2859719
fatcat:dqonjedr7naz5n5bpu3umpdt2a
Voices Obscured in Complex Environmental Settings (VOiCES) Corpus
2018
Interspeech 2018
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This dataset will promote speech and signal processing research of speech recorded by far-field microphones in noisy room conditions. ...
This work is a multi-organizational effort led by SRI International and Lab41 with the intent to push forward state-of-the-art distant microphone approaches in signal processing and speech recognition. ...
Successfully deploying speech and acoustic signal processing algorithms in the field hinges on access to realistic data. ...
doi:10.21437/interspeech.2018-1454
dblp:conf/interspeech/RicheyBABFGLNSH18
fatcat:jgo7q7ia3zgqha2h3cktv6ftm4
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