Audibility of Linear Distortion with Variations in Sound Pressure Level and Group Delay
نویسندگان
چکیده
Recent psychoacoustic studies of nonlinear distortion have yielded some new insights into what audible problems in loudspeaker might be related to. This paper will show the results of recent subjective tests which extend the work of various previous works to show that sound level significantly affects the perception of linear distortion in audio systems. This means that the hearing system itself is nonlinear and what has been thought of as being nonlinear distortion in the audio system may actually be a nonlinear perception directly in the receiver itself.
منابع مشابه
Sound Quantity and Quality of Sampo 3065 Combine Harvester
ABSTRACT- Noise is considered as one of the most debilitating conditions in farming operations. In this study, a number of factors affecting the noise generated by Sampo 3065 combine harvesters were evaluated. Factors were engine speed and gear ratio for combines with and without original cabins. A factorial experiment arranged as a completely randomized design with four replicates was used. Re...
متن کاملA Very Low Voltage 9th Order Linear Phase Baseband Switched Capacitor Filter (RESEARCH NOTE)
A very low voltage 9th order linear phase baseband switched capacitor (SC) filter has been designed to be used as part of a cellular GSM (Global System Mobile) receiver. A Gaussian-to-6dB filter of the order of seven is chosen and a second order function is added to reduce the group delay variations around. The filter uses a fully differential topology to increase the dynamic range and reduce t...
متن کاملNoise exposure and risk of hypertension: a cross-sectional study
Abstract Background: Previous studies have indicated an unspecific correlation between noise exposure and blood pressure disturbances. Blood pressure disturbances could be caused by the environmental hazards such as noise exposure. The aim of this study is to analyze whether there is a relationship between noise exposure and hypertension. Methods: Atotal sample of 218 workers workin...
متن کاملCalculation of the drop in sound pressure level and frequency analysis of aerospace engine test cell (Research Article)
Aerospace engines testing is a source of noise pollution and determining the low frequency acoustic characteristics of the test cell, plays an important role in optimally control of the sound field and reducing the level of sound pressure and pollution. In this study, the drop in average sound pressure level is numerically predicted by constructing a test cell according to ISO 140 standard. To ...
متن کاملThe Communication Method of Distance Education System and Sound Control Characteristics
The present in used distance education system is based on audiovisual communications. So when a teacher gives lessons to many students who are dispersed in distant places, the teacher obtains input from students through image and sound information. The students can be visually distinguished by separately displaying an active picture and a non-active background. But it is hard to distinguish the...
متن کامل