| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2011: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Research Abstract |
This study investigated effects of compression processing of sound sources from television broadcasting on listening in elderly people with mild hearing loss. The sound sources from television broadcasting were divided into four frequency bands, and then the signal of the each bandwidth was compressed with a different compression ratio. The processed signals were presented to the elderly people by a loudspeaker in an anechoic room. Some of the people evaluated that the processed signals with amplification of 6 dB above a frequency of 4 kHz were easier to listen to than the original signal. For the majority of the people, however, the processed signals did not improve listening as compared to the original signal. These results suggest that it might be difficult to apply compression processing of sound sources from television broadcasting for better listening in all elderly people.
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