Att ansluta en digital signalprocessor kräver ett omfattande arbete. Innehållet i denna rapport sammanfattar teoretiska metoder för att integrera den digitala signalprocessorn ADAU1701 i talförstärkaren MMT-4, utvecklad av företaget Xena Medical. Arbetet har till största delen bestått i att finna en lämplig DSP och studera dess datamanual för att anpassa den till talförstärkaren.Mycket av rapporten sammanfattar beräkningar av komponentvärden och anpassning av ADAU1701 för MMT-4:s behov. ADAU1701 beskrivs utifrån det så kallade selfboot-läget där processorn kan arbeta som fristående processor..

I denna uppsats har filmljudet i krigsfilmerna Apocalypse Now och Saving Private Ryan undersökts. Detta har gjorts för att försöka bidra med ökad förståelse för filmljudets användningsområde och funktioner, främst för filmerna i fråga, men även för krigsfilm rent generellt. Filmljud i denna kontext omfattar allt det ljud som finns i film, men utesluter dock all ickediegetisk musik. Båda filmerna har undersökts genom en audio-visuell analys. En sådan analys görs genom att detaljgranska båda filmernas ljud- och bildinnehåll var för sig, för att slutligen undersöka samma filmsekvens som helhet då ljudet och bilden satts ihop igen.

The aim of this Masters thesis is to, from a users perspective, investigate which factors affect the library use for six persons with disabilities or visual handicaps. My method has been a case study and the methods applied are interviews and observation. As a theoretical framework I use Tom Wilsons theories and models about information behaviour and transform them to a model about library use. Answers are sought to the following questions: - What does the library use look like for six persons with disabilities or visually handicaps? - How do they experience the library in their own municipality? - Which factors affect the disabled persons library use and experience of the library? All interviewees showed a very positive attitude towards the library and the majority of them visited the library regularly or received audio books by mail.

This essay describes a single case self-study of a music composer in order to track the compositional process in real time. In the study the subject and the researcher are the same person. The study builds on previous empirical studies that have used methodological approaches such as analysis of computer-based digital data collection, verbal protocol and video observations. It deals with issues of the compositional process related to for example time consumption, number of artistic decisions, the different roles and skills of a music composer, and methods of research in the musical composition process. During three shifts the researcher worked as a music composer dealing with the issue of converting an audio sketch of a composition into a representative finished audio product.

Normally the operational amplifier is used as a component in active filter design. The goal for future components in filter design is large bandwith and the use of low supply voltages. The use of current-mode instead of voltage-mode circuits gets a step closer to the required performance. A component that use current as the signal conveying part is the current conveyor. In this report a comparative study between two current conveyor structures of second generation (CCII) is performed.

Svenskt Rockarkiv is an organization located in Hultsfred, Sweden. Its goal is to collect and document the history of Swedish rock music. The archive contains several types of documentation, such as audio recordings, photographs, posters, video recordings and books representing Swedish rock music history. In order to store information about the audio recordings in the archive, Svenskt Rockarkiv uses a SQL Server 2000 database and a client application written in Microsoft.NET C# and Windows Forms. The purpose of this degree project is to audit the database and windows client, since the organization has needs of new functionality.

This Masters thesis is a study of the truck-driver profession and their use of libraries located in gas-stations and restaurants along the highways in Sweden. The reason for this interest is the positive trend that has occurred concerning men without any university education and their reading-habits, that is due to their increased interest in listening to audio books. This challenges the general opinion that this group is not particularly interested in reading literature. Questions posed in this study are: How do the truck-drivers relate to the activity of reading literature, what part does the road-libraries play, and how can the services that the road-libraries offer be improved according to the truck-drivers. The method used in the study is interviews made by telephone.

Our experience of the surrounding environment is affected by all of our senses, yet, in Landscape Architecture, by tradition, mostly the visual aspect has been the focal point. In this essay, however, the subject will be the auditory and its interaction with the visual..

Idag finns en mängd olika ljudkort tillgängliga på marknaden och många av dessa kräver olika instruktioner för samma ändamål. Detta kan leda till stora problem för bland annat spelutvecklare, eftersom det är till fördel om spelet som skall publiceras kan fungera på så många olika datorer som möjligt. Målet med detta arbete är att ljudsätta Clusterball® 2, med OpenAL, Open Audio Library. OpenAL är ett API, Application Programming Interface, som år 2000 introducerades, främst för ljudsättning av datorspel. Detta verktyg används för att skapa realistiska, interaktiva tre dimensionella ljud.

This study explores Sweden's climate change denial by analyzing the spoken-word discourse of its countermovement, focusing on digital media content from Swedish parliament member Elsa Widding with an aim to provide empirical insights into the discourse of Sweden's Climate Change Countermovement (CCCM). Questions guiding this study are: What are the most prevalent topics and themes related to climate change denial and skepticism? How do they align with established categories of climate change denial, shaping the overall narrative? What mobilizing ideas and meanings are present, how are they shaped, and how do they contribute to the movement's goals? The material consists of Elsa Widding's complete audio-based "movement texts'' from 2019-2023, including YouTube content, podcasts, and appearances on Riks, totaling over 2000 minutes of audio transcribed into text via AI technology. Methodologically, this study adopts a mixed-method approach which blends computational pattern detection, topic modeling, clustering, and spatial relationship mapping techniques, along with qualitative content and framing analysis. Theoretically, the study employs a perspective which uses epistemic and response skepticism to examine climate change denial, viewing it through the lens of countermovements and social movement framing. The study's main contribution lies in the enablement of comprehensive analysis of a large audio-based dataset, achieved by leveraging recent AI advancements for reliable audio-to-text conversion combined with topic modeling.

Dagens digitala spel är oerhört komplexa produktioner som ofta kräver en multitud av  sofistikerade verktyg för att förverkligas. Ett intrikat nätverk av moderna lösningar där såväl  visuella som audiovisuella element samverkar för att frambringa fängslande och entusiasmerande  upplevelser är vad som gör dagens spelproduktioner, och ingen annan bransch har sett samma  raketutveckling som spelbranschen sedan dess begynnelse. Ljuddesignens roll i digitala spel har  dock förblivit passiv där andra element tagit an mer dynamiska roller i varierande form.  Generellt sett är ljudet oftast mer ett komplement till de visuella elementen än ett fristående  förmedlingsredskap. Då audiovisuell kommunikation ej delar vissa av de begränsningar som  visuell kommunikation innehar, såsom grafisk processeringskraft, bildskärmsavgränsningar etc,  så ser vi att ljuddesign besitter en stor mängd outnyttjad potential som i teorin hade kunnat  förgylla spelupplevelser kolossalt.Det här arbetet undersöker både genom analoga och digitala medel hur införandet av binaural  lyssning i spelproduktioner kan förbättra navigationsförutsättningarna för användaren avsevärt  då djup och höjd kan skildras mycket mer effektivt, samt hur dess applicering i tredimensionella  miljöer kan främja såväl nöjes­ som lärosyften i så kallade Audio based Environment Simulators  (AbES).

Uppsatsen handlar om hur vardagskommunikationen ser ut i hörande respektive döva klasser. Vi har undersökt vilka likheter och skillnader som finns i kommunikationen i de olika klasserna. För att få veta hur kommunikationen ser ut har vi studerat kommunikationen i två olika klasser, en hörande klass och en dövklass..

I have researched different methods for practicing with the purpose of learning some useful ways to handle my performance anxiety issues, to better understand the phenomenon, and to be able to perform better under pressure. I chose or created nine methods and used each during a decided period of time, each period ending with a performance. Afterwards I analyzed the methods with the help of audio recordings and written concert evaluations to see if it was possible to alter my practicing techniques to be more directly focused on preparing for the concert situation..

A film can attract all kinds of emotions and moods of the audience through its audiovisual communications and cinematic expression, in which music plays a significant role in both understanding and interpretation of film content.It is interesting to explore the musical significance and the emotional aspect of the film out of a media and communications perspective and visual communications perspective because it?s a subject that belongs to the communications of scientific discipline as film is a media text which is working both as communicative and as audio-visual medium with its expressive aspects.The purpose of this bachelor?s paper is to increase and deepen the understanding of music's function and significant role in context with its reinforcing sense of visual expression in film. More specifically, it aims to explore the musical value of the expressive aspect of the media text in form of film musical Les Misérables (2012), which has been transmedialised from the novel of the same name, referring to the sound, music and song in relation to the film's visual expression.The research questions are at the core of the essay study: "how is music used to reinforce the cinematic visual expression?" and "how can music signify the narrative and highlight the emotional aspect of the film?" The theoretical framework is based on some of the key scholars assumptions such as Michel Chion (1994) and Claudia Gorbman (1987), who share the same theoretical views that the soundtrack seems powerful when it expresses its participation in a scene?s emotional moods as the music follows the scene?s rhythm, the image?s flow and contributes emotional and musical codes of emotions and expressions. According to Chion sound and image interact together to tell a story where sound enrich the image with expressive and informative values.

Embedded Systems Lab at Umeå University is currently part of a research project with the purpose to examine the behavior of dairy cows inside a barn. Each cow needs to be tracked with a precision of 50 cm, and since GPS-technique has poor functionality at indoor environments, an indoor positioning system needs to be developed.Embedded Systems Lab has already developed an indoor positioning system using IR-light and radio, but since this system demands extensive infrastructure and is rather expensive, an alternate positioning system using ultrasonic pulses and radio is being examined.In this report the range, beam angle and current consumption of ultrasonic transmitters- and receivers are investigated. Three different driver stages for the transmitter is tested, and two amplifier solutions for the receiver. The report also describes how the length of the transmitted ultrasonic pulse affects the received signal, accessibility of a ?shadowed? signal, and the effect of different sound frequency..