Páginas: 4 (812 palavras) Publicado: 4 de março de 2013
Fundação CECIERJ - Vice Presidência de Educação Superior a Distância
Curso de Tecnologia em Sistemas de Computação
AD1 Disciplina: Inglês Instrumental
Semestre 1/2013
adapted form SPEAK UP
The entertainment industry has seen many inventions, but the emergence of the software music standard MP3* has turned the music world on its head.This is a format that permits high quality music to be transferred from the Internet into people's home computers.
In 1989, the work of German student Karlheinz Bradenburg on digital compression andperception of music led to the MP3, a file format that compresses audio into manageable digital files.
The Walkman pioneered portable music but you had to carry tapes or CDs. The MP3 was definitelya breakthrough. Imagine squeezing all your tapes and CDs onto a small drive and having hundreds of songs in your pocket selected with a simple click, easy to copy and email!!!
The iPod is thequintessencial MP3 player. The i denotes Apple´s internet products. Pods are very small containers: peas grow in pods; spaceships carry escape pods.
Are MP3s good quality?No. In order to squeeze CD tracks into 3 or 4 megabytes, MP3 remove frequencies inaudible to humans, compressing the remaining information. Audio purists consider MP3 sound quality impoverished.There are also questions about longevity. Although vynil deteriorates with use, Thomas Edison´s original cylinders are still playable. Recently, old CDs are becoming erratic from oxidizing orbronzing. Are computer drives such as iPods secure? We won´t know until the technology grows older.
* MP3=Moving Picture [Expert Group Level] 3 [Compression]
Glossary: emergence=surgimento; turn on itshead=virar de cabeça para baixo; quintessential=na forma mais pura; denote=significa; led=levou a; pioneer=inovar; breakthrough=avanço; impoverished=empobrecido; container=recipiente; pea=ervilha.;...
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