Compression processong of sound source from television broadcasting for the universal design

电视广播声源压缩处理，通用设计

• 批准号: 23611020
• 负责人: SHIRAISHI Kimio
• 金额: $ 3.08万
• 依托单位: Kyushu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23611020/
• 关键词: 放送; 高齢者; 圧縮増幅; ユニバーサルデザイン; テレビ放送; 放送音声

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.

本研究旨在探讨压缩处理电视广播声源对轻度听力损失老年人听力的影响。将电视广播中的声源分为四个频带，然后对每个频带的信号采用不同的压缩比进行压缩。处理后的信号在消声室中通过扬声器呈现给老年人。有些人评价说，在4 kHz频率以上放大6 dB的处理信号比原始信号更容易听。然而，对于大多数人来说，与原始信号相比，处理后的信号并没有改善听力。 这些结果表明，可能很难对电视广播的声源进行压缩处理，以使所有老年人都能更好地聆听。

项目成果

Effects of frequency-band elimination on identification of noise-vocoded Japanese syllables

频带消除对噪声声码日语音节识别的影响

• 发表时间: 2013
• 作者: Shinya ISAJI;Kazuo UEDA;Yoshitaka NAKAJIMA
• 通讯作者: Yoshitaka NAKAJIMA

Factor analyses of power fluctuations in spoken sentences : applying cepstral analyses

口语句子功率波动的因素分析：应用倒谱分析

• 发表时间: 2013
• 作者: Kazuo UEDA;Yoshitaka NAKAJIMA;Takuya FUJIOKA
• 通讯作者: Takuya FUJIOKA

Factor analyses of power fluctuations in spoken sentences: applying cepstral analyses

口语句子中功率波动的因素分析：应用倒谱分析

• 作者: Kazuo UEDA;Yoshitaka NAKAJIMA;Takuya FUJIOKA
• 通讯作者: Takuya FUJIOKA