Acoustic Analysis of Articulation Tables of Numbers


  • A. M. Khvist National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Kyiv, Ukraine
  • S. A. Lunova National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Kyiv, Ukraine
  • O. P. Grebin National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Kyiv, Ukraine



articulation, speech intelligibility, numerals, table of numerals, audiometry, hearing diagnostics, power spectral density, speech signal, Ukrainian language


The article uses the methods of acoustic analysis to study the sound material of the vocabulary sample, which forms an articulation table of numerals in the Ukrainian language.

The adapted table of numerals is created by employees of the Institute of Otolaryngology of the National Academy of Medical Sciences of Ukraine based on the translation of a similar Russian-language articulation table by E. M. Harshaka and is recommended for testing the state of hearing.

The authors of the article check the general compliance of the proposed test of numerals with the integral characteristics of the Ukrainian language, which is a mandatory condition for the use of the diagnostic test. For this, the method of estimating the averaged speech power spectrum is used. The text of the table is written according to standard requirements. The sound material is processed according to the methodology developed by the authors.

The obtained integral spectrum of the sound material of the articulation table and its comparison with the average power spectrum of the Ukrainian language indicate the limited possibilities of using this test for comprehensive hearing diagnostics. In addition, the large size of the articulation table makes it impossible to read it in its entirety. The columns of numerals formed within the table are not interchangeable, as they have a significant difference in spectral characteristics.

In the article, for direct testing, based on the general table of numerals, it is proposed to create separate diagnostic tables, balanced by columns or by rows based on the integral characteristics of the language. Balanced tables of numbers are formed according to the maximum difference of ±3 dB between the levels of the spectral density of the power of the sound material within the group in the analyzed frequency range. Recommendations are also provided for using the table of numbers as a test to test hearing and speech intelligibility.



Mishhanchuk N. S., Radchenko O. I., Karamzina L. A. (2016). Movna audiometriia dlia klinichnoi audiolohii v suchasnykh umovakh [Speech audiometry in modern audiology]. Journal of Ear, Nose and Throat Diseases, No. 2, pp. 49–53.

Harshak E. M. (1964). Sbalansirovannyiy chislovoy test dlya rechevoy audiometrii [Balanced numerical test for speech audiometry]. Aktualnyie voprosyi otolaringologii, Kyiv, 140 p.

Zabolotniy D. I., Lutsenko V. I., Bieliakova I. A., Svitlychna Ye. I., Berestova A. A., Kholodenko T. Yu., Hradiuk N. M. (2020). Ukrainian translation and adaptation of Kharshak numerals test. Otorhinolaryngology, No. 1-2(3), pp. 11-16. DOI 10.37219/2528-8253-2020-1-11.

Pedchenko, O., & Lunova, S. (2018). ANALYSIS OF UKRAINIAN DIAGNOSTIC ARTICULATION TABLES. EUREKA: Physics and Engineering, Vol. 1, pp. 63-72. doi:10.21303/2461-4262.2018.00559.

Arkhypova O., Zhuravlov V., Kumeiko V. (2009). Artykuliatsiini tablytsi sliv ukrainskoi movy [Articulation tables of words of the Ukrainian language]. Pravove, normatyvne ta metrolohichne zabezpechennia systemy zakhystu informatsii v Ukraini: naukovo-tekhnichnyi zbirnyk, Vol. 2, Iss. 19, pp. 13-17.

Arkhypova O. O. and Zhuravlov V. M. (2009). Chastotnyi analiz vykorystannia bukv ukrainskoi movy [Frequency analysis of the use of the letters of the Ukrainian language]. Radioelektronika, Inform. Upr., No. 2, pp. 53–56.

Pedchenko O. I. (2018). Evaluation of the rhythmic dynamic structure of the Ukrainian language diagnostic articulation tables. Microsystems, Electron. Acoust., Vol. 23, No. 5, pp. 57–62. DOI: 10.20535/2523-4455.2018.23.5.122914.

Karamzina L. A. (2016). Psychophysiological Models Sensation and Perception of Speech Signals: in what Intelligibility Difference. Ukr. zhurnal medytsyny, Biol. ta Sport., No. 1, pp. 58–61. doi:10.26693/jmbs01.01.058.

Stoakes H., Butcher A., Fletcher J., and Tabain M. (2011). Long term average speech spectra in Yolngu Matha and Pitjantjatjara speaking females and males. Proc. Annu. Conf. Int. Speech Commun. Assoc. INTERSPEECH, No. August, pp. 1897–1900.

McCullough J. A., Tu C., and Lew H. L. (1993). Speech-Spectrum Analysis of Mandarin: Implications for Hearing-Aid Fittings in a Multi-Ethnic Society. J. Am. Acad. Audiol., Vol. 4, No. 1, pp. 50–52, PMID: 8422484.

Yashnyk O. I., Lunova S. A., Rudenko I. L. (2021). Sposib vyznachennia userednenoho spektra movy. Patent na vynakhid. [The method of determining the averaged speech spectrum. Patent for the invention]. State Enterprise "Ukrainian Institute of Intellectual Property", #16290/3A/21 from 20.07.2021., 15 p.

Didkovskii V. S., Didkovskaya M. V., and Prodeus A. N. (2008). Akusticheskaya ekspertiza kanalov rechevoi komunikatsii [Acoustic expertise of speech communication channels]. Kiev: Imeks-LTD, 420 p.

Prodeus A. M. (2018). Kompiuterna obrobka akustychnykh syhnaliv [Computer processing of acoustic signals]. NTUU ``Igor Sikorsky Kyiv Polytechnic Institute'', Kyiv, 237 p.

Ultra-Linear Measurement Condenser Microphone ECM8000 [Accessed: 06-Febr-2023].

Fast Track Pro Benutzerhandbuch [Accessed: 06-Febr-2023].

Ishchenko O. S. (2012). Holosni zvuky ukrainskoi movy zalezhno vid tempu movlennia [Vowel Ukrainian language depending on the rate of speech]: monohrafiia. K.: Instytut ukrainskoi movy NAN Ukrainy, 220 p.



How to Cite

Хвіст , А. М., Луньова, С. А. and Гребінь, О. П. (2023) “Acoustic Analysis of Articulation Tables of Numbers”, Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia, (92), pp. 68-76. doi: 10.20535/RADAP.2023.92.68-76.



Radioelectronics Medical Technologies