TY - JOUR KW - Application programming interfaces (API) KW - Audio acoustics KW - Automatic music transcription KW - Discrete Fourier transform KW - Discrete Fourier transforms KW - Extraction KW - Feature extraction KW - Intangible cultural heritages KW - Learning systems KW - machine learning KW - Mobile applications KW - Mobile computing KW - Polyphonic music KW - Predicting models KW - Sopele KW - Supervised learning KW - Supervised machine learning KW - Traditional woodwind instrument KW - Woodwind instruments AU - Arian Skoki AU - Sandi Ljubic AU - Jonatan Lerga AU - Ivan Stajduhar AB - Sopela is a traditional hand-made woodwind instrument, commonly played in pair, characteristic to the Istrian peninsula in western Croatia. Its piercing sound, accompanied by two-part singing in the hexatonic Istrian scale, is registered in the UNESCO Representative List of the Intangible Cultural Heritage of Humanity. This paper presents an insight study of automatic music transcription (AMT) for sopele tunes. The process of converting audio inputs into human-readable musical scores involves multi-pitch detection and note tracking. The proposed solution supports this process by utilising frequency-feature extraction, supervised machine learning (ML) algorithms, and postprocessing heuristics. We determined the most favourable tone-predicting model by applying grid search for two state-of-the-art ML techniques, optionally coupled with frequency-feature extraction. The model achieved promising transcription accuracy for both monophonic and polyphonic music sources encompassed in the originally developed dataset. In addition, we developed a proof-of-concept AMT system, comprised of a client mobile application and a server-side API. While the mobile application records, tags and uploads audio sources, the back-end server applies the presented procedure for converting recorded music into a common notation to be delivered as a transcription result. We thus demonstrate how collecting and preserving traditional sopele music, performed in real-life occasions, can be effortlessly accomplished on-the-go. BT - Pattern Recognition Letters DA - dec DO - 10.1016/j.patrec.2019.09.024 LA - English N1 - Publisher: Elsevier B.V. N2 - Sopela is a traditional hand-made woodwind instrument, commonly played in pair, characteristic to the Istrian peninsula in western Croatia. Its piercing sound, accompanied by two-part singing in the hexatonic Istrian scale, is registered in the UNESCO Representative List of the Intangible Cultural Heritage of Humanity. This paper presents an insight study of automatic music transcription (AMT) for sopele tunes. The process of converting audio inputs into human-readable musical scores involves multi-pitch detection and note tracking. The proposed solution supports this process by utilising frequency-feature extraction, supervised machine learning (ML) algorithms, and postprocessing heuristics. We determined the most favourable tone-predicting model by applying grid search for two state-of-the-art ML techniques, optionally coupled with frequency-feature extraction. The model achieved promising transcription accuracy for both monophonic and polyphonic music sources encompassed in the originally developed dataset. In addition, we developed a proof-of-concept AMT system, comprised of a client mobile application and a server-side API. While the mobile application records, tags and uploads audio sources, the back-end server applies the presented procedure for converting recorded music into a common notation to be delivered as a transcription result. We thus demonstrate how collecting and preserving traditional sopele music, performed in real-life occasions, can be effortlessly accomplished on-the-go. PY - 2019 SP - 340 EP - 347 T2 - Pattern Recognition Letters TI - Automatic music transcription for traditional woodwind instruments sopele UR - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85072880061&doi=10.1016%2fj.patrec.2019.09.024&partnerID=40&md5=6c8f0da0e86aefbe92e4cfe28e302e84 VL - 128 SN - 01678655 (ISSN) ER -