BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Akustik-Blog - ECPv6.15.20//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:Akustik-Blog
X-ORIGINAL-URL:https://blog.rwth-aachen.de/akustik
X-WR-CALDESC:Veranstaltungen für Akustik-Blog
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:Europe/Berlin
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20190331T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20191027T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20200329T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20201025T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20210328T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20211031T010000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20200703T110000
DTEND;TZID=Europe/Berlin:20200703T120000
DTSTAMP:20260426T231143
CREATED:20200624T161623Z
LAST-MODIFIED:20200703T090128Z
UID:1045-1593774000-1593777600@blog.rwth-aachen.de
SUMMARY:Hasti: Musical Blind Source Separation Using Ambisonics
DESCRIPTION:This talk will address the musical blind source separation problem: given multiple instrument tracks recorded together\, how can each be isolated from the others given no additional knowledge about the instrument locations or sounds? There are many advantages to solving the problem: live performances can convey the energy of the performers\, and the sound of the room can improve the perceptual quality of the recording\, while separating the instrument tracks afterwards allows for more precise equalization and mixing to improve the recording. This thesis proposes a novel approach to the problem using an ambisonic microphone array: the directionality of the microphones in the array provides information about the location of each source and allows for the implementation of a direction of arrival estimator that calculates the position of each source based on the directions that receive the most non-reverberant acoustic energy. Given the directions of arrival\, the method performs spatial filtering to virtually steer the microphone array in the desired directions. This approach is compared with a classic non-negative matrix factorization (NMF) approach and a state of the art ambisonic domain filtering approach. The proposed method outperforms NMF in nearly every tested configuration\, and outperforms the ambisonic filtering approach in certain high-reverberation cases. Importantly\, it is vastly more computationally efficient\, working in much less than real time\, and introduces less algorithmic noise to the separated tracks. \nMelden Sie sich Hier an um die Einladung zu dem Vortrag per E-Mail zu erhalten.\nRegister here to receive the invitation to this talk via E-Mail. \nZoom ID: 920 8400 8668\nPassword: 837069
URL:https://blog.rwth-aachen.de/akustik/event/hasti-musical-blind-source-separation-using-ambisonics/
LOCATION:Zoom-Meeting
CATEGORIES:Vortrag
END:VEVENT
END:VCALENDAR