Recursos para estudiantes de inglés de todos los niveles, profesores y traductores. Para aprender o mejorar tu inglés en forma divertida.
Listening Comprehension - Comprensión Auditiva

Cómo realizar este ejercicio de comprensión auditiva

- Siempre encontrarás una pequeña introducción, que puede ayudarte a comprender el tema tratado.

- En los textos presentados se han ocultado algunas palabras, que deberás escribir en los casilleros correspondientes. A medida que lees el texto, escucha el audio con atención para descubrir dichas palabras.

- Quizás puedes deducir las palabras sin necesidad de escuchar el audio. Pero, pon atención al audio para confirmar si realmente se trata de la respuesta correcta.

- Puedes escuchar el audio cuantas veces sea necesario. Pero es recomendable hacerlo solamente dos veces (o tres veces como máximo) ya que esa es la forma en que normalmente se realizan estos ejercicios en exámenes y pruebas internacionales.

- Comprueba tus aciertos pulsando el botón "Corregir". Si no has podido completar todas las palabras, pulsa el botón "Solución" para ver cuáles eran las que te faltaban.

Taking a Closer Look at the Future of Video Conferencing
Topic: Transcript of radio broadcast. Source: VOA

Escucha el audio y completa los recuadros.

This is the VOA Special English Technology Report.

High-quality systems used in video conferencing are called telepresence systems. The images are life-size yet not truly lifelike. They lack the depth that people would normally if they were in the same room together. But this could change in the future with new kinds of three-dimensional telepresence systems.

Last week, we told you about a 3-D system at the University of Arizona. Researchers can send a image over the Internet and show it on a special screen in close to real time. People would not have to wear special glasses like they often to watch 3-D movies.

The system uses a lot of cameras to take pictures of a person from different . Lasers reproduce the pictures combined into three-dimensional images, or holograms. The image appears more realistic with the more cameras that are used and the more pictures that are .

Howard Lichtman is president of the Human Productivity Lab. His company advises other companies on buying and using telepresence systems. Mr. Lichtman also publishes Telepresence Options, which reports on the industry.

He says this latest development would have done wonders for the "Star Wars" movie with the famous "Princess Leia" hologram scene.

HOWARD LICHTMAN: "For Princess Leia to , Princess Leia needs to move and her mouth needs to move, etc. And you haven't been able to do that with a regular hologram because the hologram would only be fixed in one spot. What they're able to do is, they're able to refresh that image so that the image changes the same way a person changes when they ."

The researchers in Arizona say their 3-D system is still years away from completion. Even then, Howard Lichtman says it may have competing with systems already on the market.

Most telepresence systems are two-dimensional. But Mr. Lichtman says the images are very realistic.

HOWARD LICHTMAN: "It's a 2-D image, but it's clear, photo realistic, fluid movement, accurate flesh tones, and you would swear you were in the same physical space with people who might be thousands of miles away."

He says prices for telepresence systems are going down as more people use the technology.

HOWARD LICHTMAN: "It's pushing down to everybody as these environments are becoming publicly available or you can them by the hour, and at the same time that you're getting very high quality, high definition video conferencing showing up on mobile devices and in the home delivered through the set-top box or through the PC."

A new eighteen-million-dollar project aims to create eleven telepresence centers for federal around the United States. The government is working with the AT&T company to save money and reduce by reducing the need for travel.

And that's the VOA Special English Technology Report, written by June Simms. I'm Steve Ember.

Score:
   

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