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Computer analysis of the noise component in the singing voice for assessing the quality of singing

Półrolniczak E., Kramarczyk M.

Przegląd Elektrotechniczny

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2015

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R. 91, nr 2

79-83

EN

The article focuses on the analysis of a noise in singing voices using samples obtained from choral singers. Analysis of the singing voice quality is a complex task. There are various points of view and methods of analysis used to solve that problem. Musicians consider the voice of singers from the point of view of voice emission. Doctors analyzing the voice of a singer trying to determine his medical parameters. To analyze the quality of singing voice the equipment and tools characteristic for clinical practice can be used. In the analysis of the signals mentioned in the article some methods for the voice analysis have been adopted. The quality parameters of the singing voice were calculated on the basis of recorded samples. This article presents the results of research at the frontier of computer signal analysis and medicine. To achieve the goal in the study a method for the analysis of noise Noise Parameter based on GNE (Glottal-to-Noise Excitation Ratio) was used.

PL

Niniejszy artykuł skupia się na analizie szumu w głosie śpiewaczym. Analiza jakości głosu śpiewaczego jest złożonym zadaniem. W praktyce istnieją różne podejścia do analizy zagadnienia szumu w głosie. Muzycy patrzą na głos śpiewaczy z perspektywy emisji głosu. Lekarze analizując głos śpiewaka próbują ustalić jego parametry medyczne. Stosowane są przy tym narzędzia wykorzystywane do analiz medycznych. W przedstawionej w tym artykule analizie parametry jakościowe głosu śpiewaczego obliczono dla próbek dźwiękowych pozyskanych od śpiewaków chóralnych. Przedstawiono tutaj wyniki badań z pogranicza komputerowej analizy sygnału i medycyny. Aby osiągnąć założony cel wykorzystano metody analizy parametrów szumu na podstawie współczynnika GNE (Glottal-to-Noise Excitation Ratio).

2

Design and preliminary testing of the test apparatus to analyse the impact of hearing problems on the ability to repeat sound by singer

Kramarczyk M., Półrolniczak E.

Journal of Theoretical and Applied Computer Science

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2015

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Vol. 9, nr 3

3--8

EN

It is likely that serious hearing loss affect drastically human possibility of repeating the sounds. Remains the question of whether and how the delicate hearing loss affect the person’s ability to repeat sounds. Therefore we try to create the database samples singing, expanded on the tests of hearing for individual sigers, that could be used to further research in this direction. The studies were used two research stations one for the hearing test, and a second used to test the ability of the singer to repeat sound. First station used for hearing tests utilized a standard, certified audiometric cabin with cooperating with her professional audiometer. The second test station was design for record and analyse singers ability to repeat sound. Projected solution, use tools for both generate, playback and recording audio, with used adittional materials to improve the acoustic performance of the tests. This article describes the design of test aparature and presents the conclusions of the preeliminary tests, in particular those related to the second set of equipment.

3

Automatyczne przetwarzanie nagrań dźwiękowych do celów analizy

Półrolniczak E., Kramarczyk M.

Metody Informatyki Stosowanej

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2011

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nr 5

233-240

EN

In this article the authors present the idea of automatic processing of singing recordings to create a database and for later analysis. The recordings contain sequences of sounds of the piano and singing separated by short segments of silence. The aim of the presented approach is the precise segmentation of the recordings and standardization of the resulting segments (termed further as samples) for later assessment of vocal quality. The taken approach can reduce the amount of time required for preparation of a database with sequences of singing for the analysis of singing voice quality. The samples obtained in the process must meet the prescribed requirements to enable carrying out the planned analyzes such as estimation of the fundamental frequency, vibrato estimation, Singing Power Ratio and formants estimation.