Milosevic, S. 2014. Buller ? Hur planers en bullerfri stad?. Kulturgeografiska institutionen, Uppsatser, Uppsala universitet. This essay is about noise pollution caused by urbanization.

Noise music is created around sounds not often welcome in a musical context. Since the birth of electronic music in the 1950s a new perspective on composing has emerged. In electronic music, sounds and their timbre are as much important as melody, harmony and rhythm. This composing perspective is not often observed. Therefore I have examined a musical genre that stretches the boundaries of what we consider music, sound, noise, beautiful and terrible.

Speech anomalies have been described as characteristic symptoms forthe 22q11 deletion syndrome. However, research on speech and voice in adultswith the syndrome is still scarce. Previous research has indicated that speech andvoice anomalies seen in children with the syndrome might have neurologicalcauses. The aim of this study is to investigate speech and voice in a group ofadults diagnosed with the 22q11 deletion syndrome, with extra focus onanomalies with possible neurological cause. The researched group consisted of24 adults between the ages 19 to 38 with a verified 22q11-deletion, 16 womenand 8 men.

Audionomprogrammet.

The goal of this work is to summarize the calculations for scaling and noise of twoportadaptor. Two different methods has been described and used for the final results..

Active headsets have been on the market for years and now it is time for something else to enter the stage. The technology of active noise reduction can for exmple also be used in ventilation systems for reducing ventilation noise. An active control system principally consists of four important components, namely the downstream error microphone, the upstream detection or reference microphone, the digital signal processor (DSP) and a loudspeaker. The upstream reference microphone listen to the primary ventilation noise and sends it to the DSP which makes a phase shift to the signal and sends it to the loudspeaker. The loudspeaker sends out the opposite waveform of the incoming one and reduce the primary ventilation noise.

Teorier inom Kognitiv hörselvetenskap beskriver hur uppfattning av tal beror på två olika typer av processer. Bottom-up processer associeras med akustiska och fonetiska egenskaper hos en inkommande signal och top-down processer associeras med lexikala, syntaktiska, semantiska samt kontextuella egenskaper. Förmågan att utnyttja top-down processer tros bero på kapaciteten hos arbetsminnet. För att undersöka en skillnad mellan bottom-up och top-down samt deras förhållande till arbetsminnet har ett Speech-in-Noise (SIN) test utformats och genomförts på 15 försöksdeltagare. Testet undersöker skillnader i tröskelvärden för att identifiera ett enstavigt ord i ett uppåtgående förhållande till stationärt brus, mot tröskelvärden för att identifiera ett enstavigt ord i stationärt brus med hjälp att top-down stöd.

This study examines if children in 5th grade experience any speech anxiety about speaking when everyone in the class will hear but while sitting down either by their desks or in a circle. I also want to find out how much the children speak; do boys or girls speak more than the other sex? Is there any difference in space of speech in the classroom, and if so is it connected to speech anxiety? Gender perspective is the theoretical outlook that this study has which is used to find out if there are any differences between boys and girls in the amount they talk in the classroom and the way the children themselves describe how it is to talk in the classroom. To find out if children in 5th grade experience any speech anxiety while speaking sitting down in everyday activities I interviewed six boys and six girls and to find out how much they spoke I observed the grade for a total of nine lessons. The result shows that some of the pupils do experience speech anxiety when sitting down and speaking so that everyone can.

Active headsets have been on the market for years and now it is time for something else to enter the stage. The technology of active noise reduction can for exmple also be used in ventilation systems for reducing ventilation noise. An active control system principally consists of four important components, namely the downstream error microphone, the upstream detection or reference microphone, the digital signal processor (DSP) and a loudspeaker. The upstream reference microphone listen to the primary ventilation noise and sends it to the DSP which makes a phase shift to the signal and sends it to the loudspeaker. The loudspeaker sends out the opposite waveform of the incoming one and reduce the primary ventilation noise.

The report examines the factors which may be a contributing cause to the problems that are present when ferritic stainless steel are eddy current tested in a warm condition. The work is carried out at Fagersta Stainless AB in Fagersta which manufactures stainless steel wire. In the rolling mill there is an eddy current equipment for detection of surface defects on the wire. The ferritic stainless steels cause a noise when testing and this noise complicates the detection of defects.Because of this, a study was made of how the noise related to factors such as steel grade, temperature, size and velocity. By observing the signal and with the possibilities to change the equipment settings the capability to let a signal filter reduce the noise level were evaluated.

Too high levels of noise lead to various health problems and cost society billions of SEK peryear. In this thesis we have examined a model of the A40E articulated hauler at VolvoConstruction Equipment in Braås. We have tried to reduce cabin noise in an articulated hauler,while also providing a way on how to proceed with a machine when the cabin does not measureup to the sound requirement. The best way to find leaks were with a reference source of model4205 and its speaker HP 1001 from Brüel & Kjaer in the cab and then walk around and listen towhere the reference source was more prominent. In this way, we found that the edges and theplugs were sensitive areas.

Möbius sequence is a rare condition where affected cranial nervesoften lead to speech deviations due to reduced oral motor functioning. Thisstudy aimed to survey speech deviations, compensatory strategies and selfperceptionof speech in seven people with Möbius sequence, and to linkthese to oral motor function and intelligibility. Additionally, the immediateeffects of smile surgery were investigated in one person. The abovementioneddomains were studied instrumentally, perceptually and throughstructured interviewing. All participants displayed reduced oral motorfunction.

Abstract: The purpose with this study is to analyse the political debate about freedom of speech in Sweden and Denmark, after the caricatures of the Islamic Prophet Mohammed that the Danish newspaper Jyllandsposten published in September 2005. For this debate four political parties have been chosen. These are: Socialdemokratiska Partiet and Moderata Samlingspartiet in Sweden and Socialdemokraterne and Venstre in Denmark.An idea analysis has been chosen as method, and dimensions as an analysing tool. The overall result of the analysis is that right- and left political parties in Sweden and Denmark are more alike, than different in their political debate about free speech. They all wish for total freedom of speech, and see that as the foundation of the democratic society.

Speech disorders are common in children with 22q11-deletion syndrome, but there is limited knowledge about speech in adults with this syndrome. The aim of this study is to describe speech and voice in adultswith 22q11-deletion syndrome, and compare the results with a control group.Ten adults between 19-49 years participated in each group. The study wasbased on the Swedish dysarthria assessment, Dysartribedömningen. Thetested abilities were respiration, phonation, oral motor function, velopharyngeal function, articulation, prosody and intelligibility. Communicative participation was examined as well.

Wind power in Sweden is expanding in response to the government's decision that 49% of Sweden's power should originate from renewable energy sources by the year 2020. Problems with noise and sound emissions related to wind turbines are a constant argument against the wind power expansion and this paper means to examine if vertical axis wind turbines might be a viable alternative to the conventional horizontal design for noise sensitive areas. In order to determine factors like difference in frequency, noise propagation and noise emission level, measurements of both horizontal and vertical axis wind turbines have been completed and the data analyzed with MATLAB. It is shown that there is a difference in how the noise from the two types of turbines propagates due to avariation in the frequency spectra of the emitted sound. It is also shown that vertical axis wind turbines generate a lower sound emission with less intensity inthe lower frequencies..