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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">izmertech</journal-id><journal-title-group><journal-title xml:lang="ru">Измерительная техника</journal-title><trans-title-group xml:lang="en"><trans-title>Izmeritel`naya Tekhnika</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0368-1025</issn><issn pub-type="epub">2949-5237</issn><publisher><publisher-name>ФГУП "ВНИИФТРИ"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32446/0368-1025it.2026-3-105-113</article-id><article-id custom-type="elpub" pub-id-type="custom">izmertech-2458</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>АКУСТИЧЕСКИЕ ИЗМЕРЕНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ACOUSTIC MEASUREMENTS</subject></subj-group></article-categories><title-group><article-title>Метод кодирования голосового источника турбулентного типа на основе гибридной модели линейного предсказания</article-title><trans-title-group xml:lang="en"><trans-title>A method for coding turbulent sound sources based on a hybrid linear prediction model</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3045-3337</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Савченко</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Savchenko</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Владимир Васильевич Савченко, д-р техн. наук, профессор по кафедре информационных радиосистем</p><p>Нижний Новгород</p></bio><bio xml:lang="en"><p>Vladimir V. Savchenko, D. Sc. (Engineering), Professor of the Department of Information Radio Systems</p><p>Nizhny Novgorod</p></bio><email xlink:type="simple">vvsavchenko@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2776-5471</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Савченко</surname><given-names>Л. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Savchenko</surname><given-names>L. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Людмила Васильевна Савченко, канд. техн. наук, доцент кафедры информационных систем и технологий</p><p>603155, Нижний Новгород, ул. Большая Печерская, 25</p></bio><bio xml:lang="en"><p>Lyudmila V. Savchenko, Cand. Sc. (Engineering), Associate Professor of the Department of Information Systems and Technology</p><p>603155, Nizhny Novgorod, Bolshaya Pecherskaya st. 25</p></bio><email xlink:type="simple">vvsavchenko@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Независимый исследователь</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Independent Scholar</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Национальный исследовательский университет «Высшая школа экономики»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research University Higher School of Economics</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>19</day><month>06</month><year>2026</year></pub-date><volume>75</volume><issue>3</issue><fpage>105</fpage><lpage>113</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; ФГУП "ВНИИФТРИ", 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">ФГУП "ВНИИФТРИ"</copyright-holder><copyright-holder xml:lang="en">ФГУП "ВНИИФТРИ"</copyright-holder><license xlink:href="https://www.izmt.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://www.izmt.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://www.izmt.ru/jour/article/view/2458">https://www.izmt.ru/jour/article/view/2458</self-uri><abstract><p>В рамках актуального направления исследований в области речевой акустики – неинвазивного анализа процессов речеобразования – рассмотрена острая проблема недостаточной точности параметрических методов кодирования голосового источника турбулентного (шумового) типа. Для решения указанной проблемы разработан метод кодирования, основанный на гибридной модели линейного предсказания, в которой совмещаются преимущества параметрического и непараметрического подходов к моделированию речевых сигналов. Параметрический подход реализован в форме вектора коэффициентов линейного предсказания, а непараметрический подход – в форме клиппированной последовательности отсчётов ошибки линейного предсказания. С использованием авторского программного обеспечения поставлен и проведён натурный эксперимент над множеством звуков шёпотной речи контрольного диктора. Показано, что по сравнению с известным методом кодирования турбулентного источника на основе модели линейного предсказания с шумовым возбуждением разработанный метод характеризуется выигрышем 2,5 дБ и более в метрике относительного среднего квадратического значения ошибки линейного предсказания при гарантированной узнаваемости голоса диктора по декодированному (восстановленному) речевому сигналу. Полученные результаты будут полезны при разработке малозатратных систем и технологий цифровой обработки, синтеза и передачи речи с многократным сжатием данных. К числу перспективных направлений применения разработанного метода относятся системы цифровой голосовой биометрии, в которых узнаваемость голоса диктора является ключевым требованием к методу кодирования речевого сигнала.</p></abstract><trans-abstract xml:lang="en"><p>Within the framework of a current area of research in the fi eld of speech acoustics – non-invasive analysis of speech production processes – the acute problem of insuffi cient accuracy of parametric methods for coding a turbulent (noise) type voice source is considered. In order to overcome this problem, a method for coding a sound source with increased accuracy has been developed, based on a hybrid model of linear speech prediction, which combines the advantages of parametric and nonparametric approaches to speech signal modeling. In this case, the parametric approach is implemented in the form of a vector of linear prediction coeffi cients, and the nonparametric approach is implemented in the form of a clipped sequence of linear prediction error samples. Using the author's software, a full-scale experiment on a set of the whispered speech sounds of the control speaker has been set up and carried out. Compared to a known method for encoding a turbulent sound source based on a noise-excited linear prediction model, the developed method is characterized by an accuracy gain of 2.5 dB or more in the mean square error of linear prediction metric, while guaranteeing speaker voice recognition from the decoded (reconstructed) speech signal. The obtained results will be useful in developing low-cost systems and technologies for digital processing, synthesis, and transmission of speech with multiple data compression. Promising applications of the developed method include digital voice biometrics systems, in which speaker voice recognition is a key requirement for the speech signal encoding method.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>устная речь</kwd><kwd>речевой сигнал</kwd><kwd>речевая акустика</kwd><kwd>речевой тракт</kwd><kwd>голосовая щель</kwd><kwd>шёпотная&#13;
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