The study describes people's reaction to environmental noise in Curitiba, a city of approximately 1.6 million inhabitants in Brazil. Data was collected using questionnaires randomly delivered to the city's residents. Out of 1,000 questionnaires, 860 (86%) were returned and assessed. The main noise sources found as disturbing were motor vehicle traffic (73%) and neighbors (38%), which were rated...

In this paper machine learning and artificial neural network models are proposed for the classification of external noise sources affecting a given quantum dynamics. For purpose, we train then validate support vector machine, multi-layer perceptron recurrent with different complexity accuracy, to solve supervised binary problems. As result, demonstrate high efficacy such tools in classifying no...

UNLABELLED The aim of this study was to illuminate the meanings of being critically ill in a sound-intensive ICU patient room, as disclosed through patients' narratives. Patient rooms in ICUs are filled with loud activity and studies have revealed sound levels comparable to those of a busy road above the patient's head. There is a risk that the sound or noise is disturbing and at worst a major ...

The negative effects of loud anthropic sounds on non-human health and welfare urges attention. We report here the results a technical study we conducted attending Public Prosecutor’s request at Ribeirão Preto, SP, Brazil. A Civil Inquiry informed against nocive human concentration captive free-living animals around municipal zoo. zoo is part natural protected area that paradoxically was used as...

Ambient noise and acoustic echo reduction are indispensable signal processing steps in a hands-free audio communication system. Taking the signals from multiple microphones into account can help to more effectively reduce disturbing noise and echo. This paper outlines the design and implementation of a multi-channel noise reduction and echo cancellation module integrated in the PulseAudio sound...

BACKGROUND: Magnetically marked capsules serve for the analysis of peristalsis and throughput times within the intestinal tract. Moreover, they can be used for the targeted disposal of drugs. The capsules get localized in time by field measurements with a superconducting quantum interference device (SQUID) magnetometer array. Here it is important to ensure an online localization with high speed...

Åsa Skagerstrand (2018): Perception of disturbing sounds: Studies from The Swedish Institute for Disability Research 89. The present thesis concerns the daily sound environment and the human perception of the same. The sound environment affects the possibility to be active in a communication. With background noise, it may be harder to hear desired signals, and when suffering from a hearing loss...

Åsa Skagerstrand (2018): Perception of disturbing sounds: Studies from The Swedish Institute for Disability Research 89. The present thesis concerns the daily sound environment and the human perception of the same. The sound environment affects the possibility to be active in a communication. With background noise, it may be harder to hear desired signals, and when suffering from a hearing loss...