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TOEFL iBT Speaking. In this integrated speaking task, you will read a short pass
TOEFL iBT Speaking. In this integrated speaking task, you will read a short pass
游客
2024-01-02
47
管理
问题
TOEFL iBT Speaking. In this integrated speaking task, you will read a short passage, listen to a lecture on the same topic, and then speak in response to a question about what you have read and heard. Do not look at the question until the lecture has ended. Do not look at the reading passage while you are speaking.
Reading Time - 45 seconds
MlCROPHONING
Microphoning is the art and science of deciding which kinds of microphones to use, how many to use, and where to put them. The goal of microphoning, or "micing," is to get a recording that sounds most like the live performance. Different microphones can "hear" in different ways, a characteristic known as polar pattern. Polar pattern indicates how sensitive the microphone is to sounds arriving from different directions. Two common polar patterns are "unidirectional" and "omnidirectional." A unidirectional microphone picks up sounds fromonly one direction. An omnidirectional microphone picks up sounds equally from all directions.
Now cover the passage and listen to the lecture. You may take notes, and you may use your notes to help you answer the question. After you hear the question, begin preparing your response. You may look at the question, but NOT at the passage. You have 30 seconds to prepare your response and 60 seconds to speak.
The professor describes unidirectional and omnidirectional microphones. Explain how their polar pattern makes these microphones appropriate for recording specific performances.
Stop
Preparation Time - 30 seconds
Response Time - 60 seconds
Now listen to part of a lecture on this topic in a music class.
When you’re "micing," you have to consider both the performers and the room. You want to maximize the sound from the performers but reject the unwanted sounds from other sources. This is why polar pattern is so important.
The most popular pattern hears only, or mostly, the sounds coming from one direction. This is the unidirectional microphone, which picks up the signals that arrive in front. Unidirectional microphones are good for recording bands in a studio. You just aim the mic at the instruments you want to pick up. Unidirectional mics are good for performers in concert halls and nightclubs, and also for recording speech. Their chief advantage is that they keep out audience noise, echoes, and other background noise.
In contrast, omnidirectional microphones can hear sound from all directions because their polar pattern is almost a perfect sphere. Omnidirectional microphones will create a feeling of space. Because they hear from all directions, they pick up sounds from the musicians as well as sounds reflected from the walls and ceiling, and this gives the effect of listening in a large room. An omnidirectional mic is great for the pipe organ, or for the bass drum in an orchestra or symphonic band.
The professor describes unidirectional and omnidirectional microphones. Explain how their polar pattern makes these microphones appropriate for recording specific performances.
选项
答案
- A unidirectional microphone picks up sounds that come from one direction. It picks up sounds from the performers, but it keeps out sounds coming from other directions, such as audience noise and echoes. These characteristics make unidirectional microphones good for recording bands in a studio, performers in concert halls and nightclubs, and speech.
- An omnidirectional microphone picks up sounds equally from all directions. It picks up sounds from the performers and sounds reflected from the walls and ceiling. It creates a feeling of space, of being in a large room. For these reasons, omnidirectional microphones are good for the pipe organ or bass drum in an orchestra or symphonic band.
解析
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