A Modified Sampling Synthesis for a Realistic Simulation of Wind Instruments—The Design and Implementation
PBN-AR
Instytucja
Wydział Twórczości, Interpretacji i Edukacji Muzycznej (Akademia Muzyczna w Krakowie)
Źródłowe zdarzenia ewaluacyjne
Informacje podstawowe
Główny język publikacji
en
Czasopismo
Journal of Applied Mathematics and Physics
ISSN
2327-4352
EISSN
2327-4379
Wydawca
Scientific Research Publishing, Inc. USA
DOI
Rok publikacji
2016
Numer zeszytu
2
Strony od-do
215-220
Numer tomu
4
Identyfikator DOI
Liczba arkuszy
0.50
Słowa kluczowe
en
Sound Synthesis
Synthesis Methods
Sampling
Streszczenia
Język
en
Treść
Sampling synthesis is one of the most practical and widely used approaches among the various sound synthesis methods used for creating a realistic simulation of acoustic instruments. Using numerous high quality sound samples it is possible to reproduce a sound of almost any musical instrument, including subtle variations caused by the registers of an instrument or through the use of different articulation techniques and dynamic levels. However, this method has some disadvantages. Firstly, with high fidelity reproduction systems, the repeatability of samples becomes quickly apparent for more experienced listeners. This is sometimes manually corrected by switching between several different samples of the same note. Secondly, it is standard approach to record and reproduce each note separately. It prevents samplers from reproducing natural note transitions, making fluent, connected articulations, such as legato, unnatural. Finally, samplers provide a very limited number of sound parameters to control. Therefore, it is difficult to introduce a set of purposeful fluctuations of selected parameters uniquely attributable to human performances. A synthesis system which addresses the aforementioned problems has been developed at the Academy of Music in Krakow (Poland) for a group of wind instruments as part of a symphony orchestra. The system is based on a large collection of non-standard samples. Samples contain short sequences of notes instead of single notes. In order to use them, a number of techniques have been implemented to allow the seamless connecting of recorded sequences and the control of note durations as well as tempo and dynamics envelopes. Decision-making algorithms and signal processing are applied to create melodic figures by choosing, modifying, and connecting fragments of samples, while keeping natural note transitions intact. The problem of mimicking human performances is addressed by implementing a set of performance rules. It allows to introduce context-dependent variations into the regular playback of the material contained in the musical notation to properly shape the expression of musical structures, similarly to that of live performances by musicians. This article presents the main modules of the modified sampling synthesis system designed by us as well as its general structure and principle of operation. The modules are responsible for performing musical score analyses, an automatic selection and connection of sound samples, and the application of performance rules.
Cechy publikacji
ORIGINAL_ARTICLE
Inne
System-identifier
736879
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