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Noise generated within hearing aid amplifiers is distracting and, if the level is high enough, may interfere with speech communication. For hearing aid specification and fitting, it is useful to know the acoustic levels at which internal amplifier noise becomes audible and at which it becomes objectionable. This paper reports, for eight subjects with(More)
Group delay in a digital signal processing (DSP) hearing aid may be perceived as an echo in the sound heard by a wearer listening to his or her own voice, due to a combination of unprocessed sound received at the ear through head and air pathways and delayed sound reaching the eardrum through the hearing aid. Depending on the amount, this delay may be(More)
recent debates in political geography have questioned the nation-state idealized sovereignty as rigidly linked to the notion of a transparent territoriality, clearly marked in space by stablished borders. Sovereignty has no need to assume this particular form. This paper puts forward the notion of 'overlapping territorialities' in order to discuss how(More)
John Agnew has performed a real service by writing an interesting paper and delivering an eloquent presentation on the topic at the annual meetings. His 'state of political geography' paper clearly and forcefully explains where the discipline is and should be in the near future. For the most part, I do not disagree with the many interesting points John(More)
Internal circuit noise in hearing aids is distracting to a listener and, if loud enough, may interfere with intelligibility, either by direct masking of weak components of speech or through the generation of undesired intermodulation products, which can also act as a source of masking. The objective characteristics of noise may be measured; however, wearers(More)
Loud sounds amplified by conventional hearing aids produce saturation distortion. This paper presents a comparison between a Class D hearing aid that was allowed to amplify into saturation and a Class D hearing aid that contained circuitry to prevent saturation distortion. The study was performed to determine whether users judged the conventional hearing(More)
This paper analyzes the political determinants of the distribution of infrastructure expenditures by the Italian government to the country's 92 provinces between 1953 and 1992. Extending implications of formal theories of legislative behavior to the context of open-list proportional representation, we examine whether individually powerful legislators and(More)
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