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Frequency domain acoustic echo canceller that handles asynchronous A/D and D/A clocks

Mototsugu Abe, Masayuki Nishiguchi
2014 2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)  
This paper describes a method of making an AEC in the frequency domain that can handle a mismatch in sampling rate between A/D and D/A conversion.  ...  An implicit premise in using an acoustic echo canceller (AEC) is that the clock for A/D conversion for a microphone and the clock for D/A conversion for a loudspeaker work synchronously.  ...  CONCLUSION This paper describes a new method of acoustic echo cancellation that handles a sampling-rate mismatch between A/D and D/A conversion.  ... 
doi:10.1109/icassp.2014.6854740 dblp:conf/icassp/AbeN14 fatcat:xptn52y22vgyvp2v6rge7lrnbe

Predictors of auditory performance in hearing‐aid users: The role of cognitive function and auditory lifestyle

Martin D. Vestergaard
2006 Journal of the Acoustical Society of America  
This system comprises a mat switch resistant to 100 N of a movement load in a 500ϫ700 mm 2 area, an A/D converter, a PC, and a MIDI device.  ...  for narrow-band coding ͑frequency domain modeling͒.  ...  Am. 52, 633-643 ͑1972͔͒ by listeners with acoustic hearing, and detection by listeners with electrical hearing ͓␤ max Ϸ10, G. S. Donaldson, N. F. Viemeister, and D. A. Nelson, J. Acoust. Soc.  ... 
doi:10.1121/1.4787675 fatcat:niry4qemhvdzvpeivahfcgd53a

Underwater noise due to precipitation

Lawrence A. Crum, Hugh C. Pumphrey, Andrea Prosperetti, Leif Bjorno
1989 Journal of the Acoustical Society of America  
Several years ago, ocean acoustics gave birth to acoustical oceanography.  ...  The traditional oceanographic instruments do this rather crudely, and probably the best technique is to use the acoustical behaoior to characterize the medium.  ...  The observer pressure levels predicted by the program are plotted as a waterfall spectrum and also sent to headphones by way of a D/A conversion.  ... 
doi:10.1121/1.2026824 fatcat:xbwjl6wggjh5xee7ci2vcphfd4

Overview [chapter]

2013 Musical Signal Processing  
Plot betw een frequency bins k = -M/2 and k = M /2 . M agnitude spectrum com puted w ith a D F T size o f 998 points.  ...  Windowing with any window, results in convolution in the frequency 160 S e r g io C a v a l ie r e a n d A l d o P ic c i a l l i domain, and therefore widens the lines of the source spectrum, spreading  ...  That is, the IR is a time-domain representation, and the frequency response is a frequency-domain representation. The bridge between these domains is convolution.  ... 
doi:10.4324/9781315078120-11 fatcat:rylq5og6njbqbhe6idh2n7nksy

2021 Index IEEE Transactions on Instrumentation and Measurement Vol. 70

2021 IEEE Transactions on Instrumentation and Measurement  
-that appeared in this periodical during 2021, and items from previous years that were commented upon or corrected in 2021.  ...  Note that the item title is found only under the primary entry in the Author Index.  ...  ., +, TIM 2021 2512010 Low-Cost Wearable Sensor Based on a D-Shaped Plastic Optical Fiber for Respiration Monitoring.  ... 
doi:10.1109/tim.2022.3156705 fatcat:dmqderzenrcopoyipv3v4vh4ry

Final Statements [chapter]

2009 FPGA-Based Implementation of Signal Processing Systems  
Acknowledgements The authors have been fortunate to receive valuable help, support and suggestions from numerous colleagues, students and friends.  ...  The authors would like to thank Richard Walke and John Gray for motivating a lot of the work at Queen's University Belfast on FPGA.  ...  It can be applied to echo cancellation for both echoes caused by hybrids in the telephone networks, but also for acoustic echo cancellation in hands-free telephony.  ... 
doi:10.1002/9780470713785.ch14 fatcat:b5uyg6k2qbhnncscazm2ickxki

Understanding Smart Sensors

Randy Frank
2000 Measurement science and technology  
display (VFD), or light-emitting diodes (LED), timers, and A/D and D/A converters ( Figure 5 .5).  ...  digital back to audio signals, usually with an A/D and a D/A converter CPU central processing unit; the portion of the computer that includes the circuits that control the interpretation and execution  ...  frequency hopping in spread spectrum approach, the case of both base and subscriber (or handset and base) hopping from frequency to frequency simultaneously to minimize data lost through interference full-scale  ... 
doi:10.1088/0957-0233/11/12/711 fatcat:inet5t3lzbecrczd2f5tdevkzq

Basic Telephony [chapter]

2005 Telecommunication System Engineering  
The advice and strategies contained herein may not be suitable for your situation. You should consult with a professional where appropriate.  ...  completeness of the contents of this book and specifically disclaim any implied warranties of merchantability or fitness for a particular purpose.  ...  In Chapter 9, we will show that ideally there should only be one A/D and one D/A conversion in any telephone connection.  ... 
doi:10.1002/0471728489.ch1 fatcat:rgsftd3davaj3gitme4j66l7ly

Internet Telephony [chapter]

Henning Schulzrinne
2004 The Practical Handbook of Internet Computing  
Also, a voice-only "packet phones" can be built with a single DSP with on-board A/D and D/A conversion and serial or Ethernet interface (Fig. ??)  ...  The analog-to-digital (A/D) and digital-to-analog (D/A) converters translate the microphone output to digital samples and feed the receiver speaker.  ...  RGB: Component video that separates the red, green and blue color components. Sometimes found on high-end computer monitors and video projectors. Typically terminated with BNC connectors.  ... 
doi:10.1201/9780203507223.ch6 fatcat:3ljkkei7j5d3lhqedymkwcvpwu

Towards an open digital audio workstation for live performance [article]

Smilen Dimitrov
2015 Ph.d.-serien for Det Teknisk-Naturvidenskabelige Fakultet, Aalborg Universitet  
Finally, there are devices that connect to the HDA Link bus, and otherwise contain the hardware A/D and/or D/A G47-281 Paper G. converters, called "High DeĄnition Audio Codec".  ...  Although this design, based on the ISA bus, is old and in market terms obsolete, it has the beneĄt of using discrete ICs for A/D and D/A converters, as well as for logic signalling.  ...  In addition to this, also handles some of the changes between the respective numpy and matplotlib library versions related to Python 2.7 and 3.2, respectively; these eforts will hopefully  ... 
doi:10.5278/ fatcat:5ox6vssazjgrdghqboopj6c6vq

Databook for human factors engineers, Volume 2: Common formulas, Metrics, definitions

1972 Applied Ergonomics  
V StoreStation8 or subryrtclnr are rhom by c o l w Ssqurrrtirl time progrcruea dow the pwe It i s b g t v a d tke lines are draws d a R k i k t r a angle.  ...  ., control of steering, acceleration a d braking in a single joystick).  ...  Ground-controlled approach (GCA) -A ground radar system providing Ground-handling equipmrnt -Equipment on the ground used to move, lift, Ground return -Radar echoes reflected from the terrain.  ... 
doi:10.1016/s0003-6870(72)80043-7 fatcat:c43suxw5xfhrvhgptk7p3rx3ru

Introduction to Multimedia [chapter]

Hermann Maurer, Nick Scherbakov, Zahran Halim, Zaidah Razak
1998 From Databases to Hypermedia  
Calculate three other transformed values by taking the difference between these (respective) pixels and pixel A, i.e. B-A, C-A, D-A. 3.  ...  Choose Edit >Duplicate (Shortcut = Command+D). A copy of the cast member is produced in the next available cast slot.  ...  Calculate three other transformed values by taking the difference between these (respective) pixels and pixel A, i.e. B-A, C-A, D-A. 3.  ... 
doi:10.1007/978-3-642-58763-4_19 fatcat:56ebe253enec7lm6amz4casr4u

Introduction [chapter]

2016 Music Data Analysis  
This series aims to foster the integration between the computer sciences and statistical, numerical, and probabilistic methods by publishing a broad range of reference works, textbooks, and handbooks.  ...  The interface between the computer and statistical sciences is increasing, as each discipline seeks to harness the power and resources of the other.  ...  6 A/D converter D/A converter ?  ... 
doi:10.1201/9781315370996-5 fatcat:avooqogcpnbjngqmzuonil3exq

Sensor Networks for High-Confidence Cyber-Physical Systems

Feng Xia, Tridib Mukherjee, Yan Zhang, Ye-Qiong Song
2011 International Journal of Distributed Sensor Networks  
Underwater acoustic sensor networks (UASNs) are playing a key role in ocean applications. The paper "A reliable and efficient MAC protocol for underwater acoustic sensor networks" by J.  ...  Furthermore, a reliable RAS called RRAS that obtains a tradeoff between the reliability and the efficiency is also suggested.  ...  The authors are thankful to the anonymous reviewers for their useful comments and suggestions that helped to improve the quality of this paper.  ... 
doi:10.1155/2011/245734 fatcat:lswungc2orda5pcqvpyqu7vrna

Some subjects in digital audio : noise shaping, sample-rate conversion, dynamic range compression and testing [article]

Stikvoort, EF (Eduard), Bokhoven, WMG (Wim) Van
Some subjects in digital audio : noise shaping, samplerate conversion, dynamic range compression and testing Citation for published version (APA): Stikvoort, E. F. (1992).  ...  Some subjects in digital audio : noise shaping, sample-rate conversion, dynamic range compression and testing. Eindhoven: Technische Universiteit Eindhoven.  ...  with D/A and A/D.  ... 
doi:10.6100/ir383771 fatcat:3noviiymfzbrrihhr5sx24dfay
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