This work deals with the design and implementation of a hardware unit that is capable of playing MPEG-1 Layer III files, compliant with ISO/IEC 11172-3. There are given the benefits of using the MP3 format and principles that make it possible to compress the size of the resulting music recordings. The file format and all parts of the header are thoroughly studied as well as the method of encoding information. The process of the data decoding is divided into several consecutive, more or less discrete functional units and these units are designed and described in a hardware description language VHDL. There are also discussed features of FPGA chips - programmable gate arrays. Those are used for physical realization of the MP3 player. A development board is selected, including such an FPGA chip and other resources that allow synthesis of the entire circuit and playback in real time.

This thesis is motivated by development of The Wearable Personal Data Information Capture System (WPDICS), which is used to support the "physical" data stream requirement on a person as they experience daily life, including visual and audio information. To fit the acquirement of "wearable", the system should be very tiny in size and very low cost. Our purpose is to conduct a feasibility analysis for WPDICS using commercially available components (Sharp Zaurus SL 5600 Linux PDA) and evaluate the acquisition of "physical" data streams grabbed by this component. In the thesis, we also develop some software test the data acquisition, especially audio and visual data.

Piratkopiering är idag mer aktuellt än någonsin med en ny, hårdare upphovsrättslag runt hörnet. Om den går igenom förbjuds även nerladdning av musik och film. Vi har i denna rapport, genom en enkät och med grund i diverse litteratur, undersökt studerande mellan 13 och 30 år och deras syn på och användande av piratkopierat material, med syftet att komma fram till om piratkopiering är utbrett bland studenter och i sådana fall varför de piratkopierar. Dessa svar har vi sedan förhoppning om skall ge oss en inblick i vad som kan göras från producenternas, av musik och film, sida för att attrahera konsumenterna med sina tjänster och förhindra piratkopiering. Det huvudsakliga resultat vi har kommit fram till med denna rapport är att piratkopiering är oerhört utbrett bland unga studerande, oavsett kön och ålder. Orsaken till utbredelsen av detta har framkommit vara priset på film och musik, som anses vara alldeles för högt, men också tillgängligheten av materialet. Undersökningen visar även att kunskapen om lagar gällande piratkopiering är bristfälliga, och det saknas respekt för dem. I dagens informationssamhälle saknas en effektiv kanal för distribution av digital media i Sverige. Respondenter i undersökningen anser att det är skäligt att man ska kunna välja t ex vilka låtar man vill ha ifrån en skiva, utan att behöva betala för alla låtar. Pris och tillgänglighet hänger tätt samman och en effektivare distributionskanal kan också innebära ett lägre pris. Detta har uppvisats av t ex Apple med sin iTunes Music Store runt om i världen. Sverige är redo för en liknande tjänst. / Piracy is today highly topical, not least because of the proposal of a harder copyright law, which would mean that all downloading of copyrighted material would be illegal. In this report we have by the help of a survey and various literature examined students between 13 and 30 years and their view on and use of pirated material. With the aim of reaching a conclusion on whether piracy is widespread among students or not, and if it is the reason why they pirate music and movies. Hopefully the answers acquired from this survey will lead us to a conclusion on what producers, of music and movies, can do in order to attract consumers to pay for their products and prevent piracy. The result reached by this report is that piracy is very widespread amongst students, irrespective of sex and age. The reason why it is widespread is that the prices are too high for a student to afford, as well as the availability of the products. It was also evident that the knowledge about laws was insufficient, and the respect for it low. The lack of an effective distribution channel of music and movies in today’s society is clear and the respondents from the survey thinks that it is reasonable to for example choose which songs that you want to buy from an album without having to pay for all the songs. Price and availability is tightly connected and a more effective distribution channel would most probably mean a lower price. As proven by Apple and their iTunes Music Store around the world. Sweden is ready for a similar service.

Today, more and more Websites provide digital music with MP3 formats on the Internet. MP3 is a format that can compress the digital files. Without this format the music program would be overlarge, and the small transmission capacity of the World Wide Web would be insufficient to support such a device. With this technological improvement, the consumers will be benefited from the conveniency of MP3, while the records companies would be threatened by the challenge confronted with the music industry. On the one hand, MP3 may reduce the sales of CDs in the market. On the other hand, it may help bring about various advantages for the record companies in terms of decreasing the marketing cost. This thesis aims to discuss the effect of the use of MP3 on CD consumption behavior by surveying the users of the MP3 Websites. The research is based on a well-designed questionnaire on the Internet. Through the promotion in thirteen days, it is received 1532 reply of the questionnaire, and there are 1293 entities considered to be valid samples for the study. The result shows that the correlation between the MP3 use and the CD consumption behavior is positive. That is to say, the users who spend longer time in MP3 Websites will buy more CDs. The more the use frequency of MP3 Websites is, the more the frequency of CD consumption. By comparing those who bought CDs with those who did not during the past twelve months, we find that the former spend longer time in MP3 Websites. To analyze the consumer's recognition about the influence of MP3 use on CD consumption behavior, our study shows that the consumers think the MP3 Websites use will not effect the CD consumption behavior. It further demonstrates an increasing tendency that the more CDs the consumers purchase, the less influence they think of the MP3 use. Therefore, according to the research, the conclusion of this thesis stands to argue that the use of MP3 Websites will not reduce the CD sales, but rather the records companies may take great advantages of it by promoting the CD market through the performance of MP3 in the Internet.

<p>Piratkopiering är idag mer aktuellt än någonsin med en ny, hårdare upphovsrättslag runt hörnet. Om den går igenom förbjuds även nerladdning av musik och film. Vi har i denna rapport, genom en enkät och med grund i diverse litteratur, undersökt studerande mellan 13 och 30 år och deras syn på och användande av piratkopierat material, med syftet att komma fram till om piratkopiering är utbrett bland studenter och i sådana fall varför de piratkopierar. Dessa svar har vi sedan förhoppning om skall ge oss en inblick i vad som kan göras från producenternas, av musik och film, sida för att attrahera konsumenterna med sina tjänster och förhindra piratkopiering.</p><p>Det huvudsakliga resultat vi har kommit fram till med denna rapport är att piratkopiering är oerhört utbrett bland unga studerande, oavsett kön och ålder. Orsaken till utbredelsen av detta har framkommit vara priset på film och musik, som anses vara alldeles för högt, men också tillgängligheten av materialet. Undersökningen visar även att kunskapen om lagar gällande piratkopiering är bristfälliga, och det saknas respekt för dem.</p><p>I dagens informationssamhälle saknas en effektiv kanal för distribution av digital media i Sverige. Respondenter i undersökningen anser att det är skäligt att man ska kunna välja t ex vilka låtar man vill ha ifrån en skiva, utan att behöva betala för alla låtar. Pris och tillgänglighet hänger tätt samman och en effektivare distributionskanal kan också innebära ett lägre pris. Detta har uppvisats av t ex Apple med sin iTunes Music Store runt om i världen. Sverige är redo för en liknande tjänst.</p> / <p>Piracy is today highly topical, not least because of the proposal of a harder copyright law, which would mean that all downloading of copyrighted material would be illegal.</p><p>In this report we have by the help of a survey and various literature examined students between 13 and 30 years and their view on and use of pirated material. With the aim of reaching a conclusion on whether piracy is widespread among students or not, and if it is the reason why they pirate music and movies. Hopefully the answers acquired from this survey will lead us to a conclusion on what producers, of music and movies, can do in order to attract consumers to pay for their products and prevent piracy.</p><p>The result reached by this report is that piracy is very widespread amongst students, irrespective of sex and age. The reason why it is widespread is that the prices are too high for a student to afford, as well as the availability of the products. It was also evident that the knowledge about laws was insufficient, and the respect for it low.</p><p>The lack of an effective distribution channel of music and movies in today’s society is clear and the respondents from the survey thinks that it is reasonable to for example choose which songs that you want to buy from an album without having to pay for all the songs. Price and availability is tightly connected and a more effective distribution channel would most probably mean a lower price. As proven by Apple and their iTunes Music Store around the world. Sweden is ready for a similar service.</p>

Stuttgart, FH, Diplomarb., 1999.

No description available.

No description available.

Master-Arbeit Univ. St. Gallen, 2008.

Made available in DSpace on 2014-06-12T16:24:50Z (GMT). No. of bitstreams: 2 arquivo1867_1.pdf: 904908 bytes, checksum: f50eab300a6d9ca19092718327e194fc (MD5) license.txt: 1748 bytes, checksum: 8a4605be74aa9ea9d79846c1fba20a33 (MD5) Previous issue date: 2008 / O processo da cadeia produtiva da música se transformou. No entanto, todas as declarações sobre esse debate são feitas num campo cinzento de dúvidas e questionamento, quando após 10 anos do formato digital .MP3, já podemos chegar a algumas conclusões sobre como se já re-configura as etapas de produção, circulação e consumo de um produto musical. Nesta dissertação, analisamos a atual formação de uma indústria fonográfica para acrescentar a ela teorias e debates do campo da comunicação, a partir das lógicas de Braga, Frith e Herschmann, evidenciando sua sociabilidade e o papel fundamental que o consumidor tem dentro da mesma. Isso é feito somando a parte teórica com entrevistas com representantes de gravadoras, músicos com uma carreira que já rompe barreiras nacionais e internacionais, além de jornalistas que debatem novos agentes legitimadores. Como conclusão, não temos na Internet um fim, mas um agente de pressão fundamental para que a cadeia produtiva se adapte ao fato de que as pessoas não apenas compram discos e encerram o processo. Elas transformam e re-configuram essa cadeia produtiva a partir de suas próprias lógicas de consumo e consumação