The Experts below are selected from a list of 219 Experts worldwide ranked by ideXlab platform
T.p. Barnwell - One of the best experts on this subject based on the ideXlab platform.
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Improving the 2.4 kb/s Military Standard-MELP (MS-MELP) coder using pitch-synchronous analysis and synthesis techniques [speech coding]
Proceedings. (ICASSP '05). IEEE International Conference on Acoustics Speech and Signal Processing 2005., 2005Co-Authors: A.e. Ertan, T.p. BarnwellAbstract:In this paper, we presented new pitch-synchronous analysis and synthesis methods for improving the quality of the 2.4 kb/s U.S. Military Standard-MELP coder. These improvements include: a new pitch-estimation algorithm; a pitch-cycle segmentation algorithm; an adaptive linear-prediction analysis and Fourier series computation selection method; and speech synthesis with fractional cycle lengths. In listening tests, we found that these new techniques improve the quality for female speech significantly and they completely eliminate the quality difference for the MS-MELP coder between male and female talkers.
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ICASSP (1) - Improving the 2.4 kb/s Military Standard-MELP (MS-MELP) coder using pitch-synchronous analysis and synthesis techniques [speech coding]
Proceedings. (ICASSP '05). IEEE International Conference on Acoustics Speech and Signal Processing 2005., 2005Co-Authors: A.e. Ertan, T.p. BarnwellAbstract:In this paper, we presented new pitch-synchronous analysis and synthesis methods for improving the quality of the 2.4 kb/s U.S. Military Standard-MELP coder. These improvements include: a new pitch-estimation algorithm; a pitch-cycle segmentation algorithm; an adaptive linear-prediction analysis and Fourier series computation selection method; and speech synthesis with fractional cycle lengths. In listening tests, we found that these new techniques improve the quality for female speech significantly and they completely eliminate the quality difference for the MS-MELP coder between male and female talkers.
A.e. Ertan - One of the best experts on this subject based on the ideXlab platform.
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Improving the 2.4 kb/s Military Standard-MELP (MS-MELP) coder using pitch-synchronous analysis and synthesis techniques [speech coding]
Proceedings. (ICASSP '05). IEEE International Conference on Acoustics Speech and Signal Processing 2005., 2005Co-Authors: A.e. Ertan, T.p. BarnwellAbstract:In this paper, we presented new pitch-synchronous analysis and synthesis methods for improving the quality of the 2.4 kb/s U.S. Military Standard-MELP coder. These improvements include: a new pitch-estimation algorithm; a pitch-cycle segmentation algorithm; an adaptive linear-prediction analysis and Fourier series computation selection method; and speech synthesis with fractional cycle lengths. In listening tests, we found that these new techniques improve the quality for female speech significantly and they completely eliminate the quality difference for the MS-MELP coder between male and female talkers.
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ICASSP (1) - Improving the 2.4 kb/s Military Standard-MELP (MS-MELP) coder using pitch-synchronous analysis and synthesis techniques [speech coding]
Proceedings. (ICASSP '05). IEEE International Conference on Acoustics Speech and Signal Processing 2005., 2005Co-Authors: A.e. Ertan, T.p. BarnwellAbstract:In this paper, we presented new pitch-synchronous analysis and synthesis methods for improving the quality of the 2.4 kb/s U.S. Military Standard-MELP coder. These improvements include: a new pitch-estimation algorithm; a pitch-cycle segmentation algorithm; an adaptive linear-prediction analysis and Fourier series computation selection method; and speech synthesis with fractional cycle lengths. In listening tests, we found that these new techniques improve the quality for female speech significantly and they completely eliminate the quality difference for the MS-MELP coder between male and female talkers.
Bruce E. Amrein - One of the best experts on this subject based on the ideXlab platform.
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Military Standard 1474E: Design criteria for noise limits vs. operational effectiveness
Journal of the Acoustical Society of America, 2015Co-Authors: Bruce E. AmreinAbstract:In April 2015, the U.S. Department of Defense (DoD) published a significant revision to Military Standard 1474 (MIL-STD-1474): Design Criteria—Noise Limits. Through the efforts of a DoD multi-service working group, every aspect of MIL-STD-1474 has been revised to improve readability; reduce conflicting guidance; and consolidate requirements common to steady-state and impulsive noise produced by weapons systems, and ground-, air- and water-borne platforms. Noise requirements in Military environments differ significantly from typical industrial or occupational situations, and mission success requires offensive equipment and weapons to be more lethal and survivable than those used by the adversary. Producing material suitable for Military operations requires unique design criteria often exceeding civilian national or international Standards. MIL-STD-1474E provides the design tools and measurement techniques necessary to satisfy these unique and often contradictory requirements. For the first time in MIL-STD-...
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Military Standard 1474e design criteria for noise limits vs operational effectiveness
Journal of the Acoustical Society of America, 2015Co-Authors: Bruce E. AmreinAbstract:In April 2015, the U.S. Department of Defense (DoD) published a significant revision to Military Standard 1474 (MIL-STD-1474): Design Criteria—Noise Limits. Through the efforts of a DoD multi-service working group, every aspect of MIL-STD-1474 has been revised to improve readability; reduce conflicting guidance; and consolidate requirements common to steady-state and impulsive noise produced by weapons systems, and ground-, air- and water-borne platforms. Noise requirements in Military environments differ significantly from typical industrial or occupational situations, and mission success requires offensive equipment and weapons to be more lethal and survivable than those used by the adversary. Producing material suitable for Military operations requires unique design criteria often exceeding civilian national or international Standards. MIL-STD-1474E provides the design tools and measurement techniques necessary to satisfy these unique and often contradictory requirements. For the first time in MIL-STD-1474E, a computer-based, electro-acoustic model of the human auditory system is used to evaluate hazard from impulsive noise events typical of weapon firing. This presentation describes the salient requirements necessary to produce and deploy Military systems maximizing Warfighter effectiveness, while minimizing hearing damage caused by their use.
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design criteria vs operational effectiveness update of u s Military Standard 1474 design criteria for noise control
166th Meeting of the Acoustical Society of America, 2014Co-Authors: Bruce E. Amrein, Tomasz LetowskiAbstract:Noise requirements in Military environments differ significantly from typical industrial or occupational situations. Both in combat and in training, mission success requires offensive equipment and weapons to be more lethal and survivable than those used by the adversary. Higher muzzle velocities, heavier projectiles, and more powerful engines result in high levels of both steady-state and impulsive noise and an increased risk of hearing loss for the users. Weapons firing can expose the user to more energy in a single event than typically experienced in a working lifetime of occupational exposure. In addition, Military operations require effective speech communication while minimizing auditory detection of equipment by the adversary. Producing material suitable for various forms of Military operations requires unique design criteria often exceeding civilian national or international Standards. To meet these unique and often contradicting requirements, the U.S. Military developed a Military design Standard for noise limits. This Standard (MIL-STD-1474) was last revised in 1997. This paper describes the effort of the U.S. Army, Navy, and Air Force to update the Standard to permit production and fielding of Military systems designed to maximize Warfighter effectiveness, while minimizing hearing damage caused by their use.
Zhengguang Xu - One of the best experts on this subject based on the ideXlab platform.
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A robust timing recovery algorithm with frequency offset for MIL-STD SOQPSK
2016 11th International Symposium on Antennas Propagation and EM Theory (ISAPE), 2016Co-Authors: Yingying Dong, Qifeng Wang, Zhengguang XuAbstract:A robust timing recovery algorithm for Military Standard (MIL-STD) shaped-offset quadrature phase-shift keying (SOQPSK) is presented and this scheme can be used in the signal with frequency offset. The new algorithm is based on the correlation calculation, and the timing offset information is extracted by the absolution operation to the correlation function. The theoretical analysis and the simulation result both show that the provided scheme can work well to the MIL-STD SOQPSK signal with frequency offset.
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Non-data-aided timing recovery algorithm for MIL-STD SOQPSK
Electronics Letters, 2015Co-Authors: Qifeng Wang, Benxiong Huang, Zhengguang XuAbstract:The phase trajectory of Military Standard (MIL-STD) shaped-offset quadrature phase shift keying (SOQPSK) is analysed and the fourth-power nonlinearity and phase accumulation technology is used to eliminate the self-noise caused by symbol information. After the operation, the MIL-STD SOQPSK signal is converted into a pure tone during a symbol period and the timing offset is estimated from the initial phase of the tone. Computer simulation shows that its estimation performance is remarkably close to the modified Cramer-Rao bound and better than that of the existing non-data-aided method in terms of estimation accuracy.
Greg Nolff - One of the best experts on this subject based on the ideXlab platform.
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Military Standard MEP-018A Tri-Fuel Conversion Propane LP NG Gas Kit
2020Co-Authors: Greg NolffAbstract:Military Standard MEP-018A uses an adapter that makes it possible to operate an engine on three different fuels Propane, Natural Gas, and Gasoline.
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Military Standard (Surplus) Tri Fuel to Propane and Natural Gas
2020Co-Authors: Greg NolffAbstract:Military Surplus Generators Run Best on Propane or Natural Gas With a Do-it-yourself Change Over Kit.
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MEP-018A Generator Tri-Fuel Natural Gas and Propane Conversion Kits
2020Co-Authors: Greg NolffAbstract:These conversion kits are designed for a MEP-018A Military Standard Generator to enables the engine to run on gasoline, natural gas or propane.