Abstract
Elderly people complain that they sometimes have a hard time hearing the narration of broadcast TV programs because the background sounds (background music, sound effects) are too loud. We conducted subjective evaluations to determine the relationship between TV volume and loudness of background sounds as it regards the comprehension of programs by elderly subjects. On the basis of objectively measured loudness levels, we confirmed two conditions under which elderly listeners perceive background sounds as too loud. One is a less than 6 phon difference between the narration and background sounds; the other is when background sounds are more than 2.5 phon louder than the average narration in the program. Based on these findings, we constructed a prototype system for objectively evaluating loudness. The device features a meter with seven color-coded levels that clearly shows the best sound balance for elderly listeners. The evaluation system was tested at a broadcasting station.
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Nakamura, H., Sawaguchi, M., Masaoka, K., Watanabe, K., Yamasaki, Y., Miyasaka, E., Yasuoka, M., Seki, H.: Better Audio Balance Broadcasting service for elderly people.-Back Ground Sound Levels of Television Programs for Easy Listening. In: 2003 Proc. Spring Meet. Acoust. Soc. Jpn.,1-5-5, pp. 455–456 (2003) (in Japanese)
Komori, T., Takagi, T., Kurozumi, K., Murakawa, K.: An Investigation of Audio Balance for Elderly Listeners using Loudness as the Main Parameter. AES 125th Convention paper 7629 (2008)
Komori, T., Takagi, T.: Subjective evaluation on the background sound of TV program by elderly people in the home environment. In: Proc. Autumn Meet. Acoust. Soc. Jpn., 3-10-14 (September 2009) (in Japanese)
Komori, T., Takagi, T.: A study of elderly people’s hearing loss and the subjective evaluation result from varying background sound level of TV program. In: ITE Winter Annual Convention, 4-9 (2009) (in Japanese)
Komori, T., Komiyama, S., Dan, H., Takagi, T., Shoda, K., Kurozumi, K., Hoshi, H., Murakawa, K.: A Investigation of the Audio Balance Control based on the Loudness Level. IEICE Transactions J92-A(5), 344–352 (2009) (in Japanese)
Kurozumi, K., Okamoto, N.: Real-time Loudness Level Meter for Broadcasting Stations and Recent Trends of Standardization. Journal of the Institute of Image Information and Television Engineers 60(7), 1012–1017 (2006) (in Japanese)
ISO532, Acoustics - Methods for calculating loudness level (1975)
ISO226, Acoustics - Normal equal loudness level contours (2003)
Paulus, E., Zwicker, E.: Computer programs for calculating loudness from 1/3 octave band levels or from critical band levels. Acoustica 27, 253–266 (1972)
Zwicker, E., Fastl, H., Widmann, U., Kurakata, K., Kuwano, S., Namba, S.: Program for calculating loudness according to DIN 45631 (ISO 532B). J. Acoust. Soc. Ja(E) 12, 39–42 (1991)
Kurozumi, K.: Loudness level meter based on the ISO226(2003-08-15). In: Proc. Autumn. Meet. Acoust. Soc. Jpn., 1-5-10, September 2004, pp. 495–496 (2004) (in Japanese)
Miura, T.: Auditory Perception and Speech. I.E.I.C.E., 448–453 (1980) (in Japanese)
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Komori, T., Takagi, T., Kurozumi, K., Shoda, K., Murakawa, K. (2010). A Device to Evaluate Broadcast Background Sound Balance Using Loudness for Elderly Listeners. In: Miesenberger, K., Klaus, J., Zagler, W., Karshmer, A. (eds) Computers Helping People with Special Needs. ICCHP 2010. Lecture Notes in Computer Science, vol 6180. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-14100-3_84
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DOI: https://doi.org/10.1007/978-3-642-14100-3_84
Publisher Name: Springer, Berlin, Heidelberg
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