• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国卫生研究院文献>Trends in Hearing >Effects of Bandwidth Compression Speed and Gain at High Frequencies on Preferences for Amplified Music
【2h】

Effects of Bandwidth Compression Speed and Gain at High Frequencies on Preferences for Amplified Music

机译：带宽压缩速度和高频增益对放大音乐的偏好的影响

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This article reviews a series of studies on the factors influencing sound quality preferences, mostly for jazz and classical music stimuli. The data were obtained using ratings of individual stimuli or using the method of paired comparisons. For normal-hearing participants, the highest ratings of sound quality were obtained when the reproduction bandwidth was wide (55 to 16000 Hz) and ripples in the frequency response were small (less than ± 5 dB). For hearing-impaired participants listening via a simulated five-channel compression hearing aid with gains set using the CAM2 fitting method, preferences for upper cutoff frequency varied across participants: Some preferred a 7.5- or 10-kHz upper cutoff frequency over a 5-kHz cutoff frequency, and some showed the opposite preference. Preferences for a higher upper cutoff frequency were associated with a shallow high-frequency slope of the audiogram. A subsequent study comparing the CAM2 and NAL-NL2 fitting methods, with gains slightly reduced for participants who were not experienced hearing aid users, showed a consistent preference for CAM2. Since the two methods differ mainly in the gain applied for frequencies above 4 kHz (CAM2 recommending higher gain than NAL-NL2), these results suggest that extending the upper cutoff frequency is beneficial. A system for reducing “overshoot” effects produced by compression gave small but significant benefits for sound quality of a percussion instrument (xylophone). For a high-input level (80 dB SPL), slow compression was preferred over fast compression.
机译：本文回顾了一系列影响音质偏好的因素的研究，这些因素主要是爵士和古典音乐的刺激。数据是使用单个刺激的评分或配对比较的方法获得的。对于正常听力的参与者，当再现带宽较宽（55至16000 Hz）并且频率响应的波动较小（小于±5 dB）时，可获得最高的声音质量评级。对于有听力障碍的参与者，通过模拟五通道压缩助听器进行聆听，并使用CAM2拟合方法设置增益，各参与者对上截止频率的偏好有所不同：有些人更倾向于在5-kHz时使用7.5或10kHz上截止频率截止频率，有些表现出相反的偏好。对于较高的上截止频率的偏好与听力图的浅高频斜率相关。随后的一项比较CAM2和NAL-NL2拟合方法的研究（对于没有经验的助听器使用者的收益略有降低）表明，他们始终偏爱CAM2。由于两种方法的主要区别在于应用于4 kHz以上频率的增益（CAM2建议高于NAL-NL2的增益），因此这些结果表明，扩展上限频率是有益的。一种用于减少压缩产生的“过冲”效果的系统，对打击乐器（木琴）的音质影响不大，但意义重大。对于高输入电平（80 dB SPL），慢压缩优于快速压缩。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号