Hyvä radioääni ja -puhe. Uutisluennan akustinen ja perkeptuaalinen analyysi
TAHVONEN, HANNA (2010)
2010
Puheoppi - Speech Communication and Voice Research
Humanistinen tiedekunta - Faculty of Humanities
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Hyväksymispäivämäärä
2010-12-30
Julkaisun pysyvä osoite on
https://urn.fi/urn:nbn:fi:uta-1-21121
https://urn.fi/urn:nbn:fi:uta-1-21121
Tiivistelmä
This study aimed to investigate what is regarded as a good radio professional’s voice and speech in Finland and whether different listener groups differ in their evaluation. Speech samples of professional Finnish radio speakers (41 females, 20 males) were recorded from news castings. The samples were evaluated for thirteen (13) parameters – such as suitability for radio voice, suitability for newscaster voice, fluency, clarity of articulation, speech rate – and overall impression by 6 naive listeners and 7 voice professionals. The thirteen parameters were evaluated on a visual analog scale and the overall impression by a number (4-10). The samples were acoustically analyzed for mean fundamental frequency (F0), F0 range, standard deviation of sound pressure level (SPL) and long-term average spectrum (LTAS). LTAS was studied by calculating the sum of sound energy levels every 25Hz filter bands in the ranges of 0-1kHz, 1-2 kHz, 2-3 kHz, 3-4 kHz and 4-5 kHz. The strongest spectral filter band below 1 kHz was given the value zero and, thus, all the other bands were compared to it, which reflects the spectral slope.
According to the results, the voice professionals evaluated the samples to represent in general a better radio and newscaster voice quality than the naïve listeners did, while the naïve listeners, in contrast to voice professionals, regarded the voices to be more suitable as newscaster voices than radio voices in general. Fluency and clarity of articulation correlated strongly both with good radio voice quality and newscaster voice quality. In female voices negative correlations were obtained between a good radio and newscaster voice quality and the sum of relative sound energy levels, especially in the range of 3-4 kHz.
The results suggest that voice professionals and naïve listeners evaluated radio and newscaster voice quality somewhat differently. However, both listener groups seemed to regard fluency and clarity of articulation as important characteristics of a good radio and newscaster speech and a softer voice quality (more tilting spectrum) as preferable for a female radio speaker. The strong correlations between voice quality and speech parameters point towards a rather holistic evaluation of speech in both listener groups.
KeyWords: Radio voice - Radio speech - News casting - Perceptual analysis - Acoustic analysis - LTAS - Voice quality - Fluency - Clarity of articulation.
According to the results, the voice professionals evaluated the samples to represent in general a better radio and newscaster voice quality than the naïve listeners did, while the naïve listeners, in contrast to voice professionals, regarded the voices to be more suitable as newscaster voices than radio voices in general. Fluency and clarity of articulation correlated strongly both with good radio voice quality and newscaster voice quality. In female voices negative correlations were obtained between a good radio and newscaster voice quality and the sum of relative sound energy levels, especially in the range of 3-4 kHz.
The results suggest that voice professionals and naïve listeners evaluated radio and newscaster voice quality somewhat differently. However, both listener groups seemed to regard fluency and clarity of articulation as important characteristics of a good radio and newscaster speech and a softer voice quality (more tilting spectrum) as preferable for a female radio speaker. The strong correlations between voice quality and speech parameters point towards a rather holistic evaluation of speech in both listener groups.
KeyWords: Radio voice - Radio speech - News casting - Perceptual analysis - Acoustic analysis - LTAS - Voice quality - Fluency - Clarity of articulation.