There are many people who use hearing aids, yet 43% of hearing-aid users do not find that their hearing aids make a difference in their music enjoyment (Leek et al. 2008). Unfortunately for individuals with hearing impairment who enjoy listening to music, hearing aids have been largely aimed to process speech. The significant acoustic dissimilarities between music and speech must be considered by current hearing aid manufactures in order for digital signal processing to increase the overall sound quality of music. Analyses show that 30-40% of hearing aid users in the United States most likely own a smartphone (personal listening device) and that will likely double within 5 years (Sabin, et al 2013). Based on consumers’ lack of enjoyment with listening to music through hearing aids and the increasing number of individuals who use personal listening devices (e.g. iPad, iPhone), researchers have been developing applications for smartphones and tablets that are designed to increase the enjoyment of listening to recorded music over hearing aids or headphones. The current study examined the effects of digital signal processing, and characteristics of the input signal on user-adjusted settings in a simulated hearing aid application made by individuals with hearing impairment and without hearing impairment. Results showed that listeners were most reliable in hearing aid adjustments related to the loudness of music, and somewhat less reliable in the adjustments related to fine tuning (spectral shape).
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机译：使用助听器的人很多，但有43％的助听器使用者并未发现他们的助听器对他们的音乐享受有所影响（Leek et al。2008）。不幸的是，对于喜欢听音乐的听力障碍者来说，助听器的主要目的是处理语音。当前的助听器制造商必须考虑音乐和语音之间明显的声学差异，以便进行数字信号处理以提高音乐的整体声音质量。分析表明，在美国，有30-40％的助听器用户最可能拥有智能手机（个人监听设备），并且在5年内可能会翻倍（Sabin等，2013）。基于消费者缺乏通过助听器聆听音乐的乐趣，以及使用个人聆听设备（例如iPad，iPhone）的人数不断增加，研究人员一直在开发智能手机和平板电脑的应用程序，旨在增加听觉的乐趣。通过助听器或耳机录制音乐。当前的研究检查了数字信号处理的效果，以及在有听力障碍和无听力障碍的人进行的模拟助听器应用中，输入信号的特性对用户调整的设置的影响。结果表明，听众在与音乐响度有关的助听器调整中最可靠，而在与微调（频谱形状）有关的调整中则不太可靠。
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