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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">sudexpert</journal-id><journal-title-group><journal-title xml:lang="ru">Теория и практика судебной экспертизы</journal-title><trans-title-group xml:lang="en"><trans-title>Theory and Practice of Forensic Science</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1819-2785</issn><issn pub-type="epub">2587-7275</issn><publisher><publisher-name>The Russian Federal Centre of Forensic Science</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">sudexpert-215</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>МЕТОДИКИ, МЕТОДИЧЕСКИЕ РЕКОМЕНДАЦИИ И ИНФОРМАЦИОННЫЕ ПИСЬМА</subject></subj-group></article-categories><title-group><article-title>ОБНАРУЖЕНИЕ И АНАЛИЗ СЛЕДОВ СЖАТИЯ ЗВУКОВЫХ СИГНАЛОВ КОДЕКАМИ MP3, AAC, WMA И VORBIS (МЕТОДИЧЕСКИЕ РЕКОМЕНДАЦИИ ДЛЯ ЭКСПЕРТОВ)</article-title><trans-title-group xml:lang="en"><trans-title>DETECTION AND ANALYSIS OF MP3, WMA, OGG AND VORBIS CODECS TRACES IN AUDIO SIGNAL</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бояров</surname><given-names>А. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Boyarov</surname><given-names>A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>старший государственный судебный эксперт лаборатории судебной экспертизы видео- и звукозаписей</p></bio><bio xml:lang="en"><p>Senior Forensic Examiner of Laboratory of Forensic Video and Audio Examinations</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФБУ РФЦСЭ при Минюсте России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Russian Federal Center of Forensic Science of the Russian Ministry of Justice</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2016</year></pub-date><pub-date pub-type="epub"><day>30</day><month>03</month><year>2016</year></pub-date><volume>0</volume><issue>1(41)</issue><fpage>78</fpage><lpage>86</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Бояров А.Г., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">Бояров А.Г.</copyright-holder><copyright-holder xml:lang="en">Boyarov A.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.tipse.ru/jour/article/view/215">https://www.tipse.ru/jour/article/view/215</self-uri><abstract><p>В работе описывается метод выявления следов кодирования звуковых сигналов кодеками MP3, AAC, WMA и Vorbis. Приводятся примеры использования данного метода для обнаружения признаков различных изменений фонограмм – монтажа, смены частоты дискретизации и повторного кодирования.</p></abstract><trans-abstract xml:lang="en"><p>The article describes the method of MP3, WMA, OGG and Vorbis codecs traces detection in audio signal. The method reveals digital audio editing, sampling rate changing and traces of multiple coding.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>криминалистическая экспертиза видео- и звукозаписей</kwd><kwd>поиск следов кодирования</kwd><kwd>психоакустические кодеки</kwd><kwd>MP3</kwd><kwd>AAC</kwd><kwd>WMA</kwd><kwd>Vorbis</kwd></kwd-group><kwd-group xml:lang="en"><kwd>forensic analysis of digital audio and video</kwd><kwd>codecs traces detection</kwd><kwd>psychoacoustic codecs</kwd><kwd>MP3</kwd><kwd>AAC</kwd><kwd>WMA</kwd><kwd>Vorbis</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">К.Гласман. Формат MP3. Журнал «Звукорежиссер», №№ 2, 3, 4, 5, 7, 8 2005.</mixed-citation><mixed-citation xml:lang="en">К.Гласман. Формат MP3. 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