Analog And Digital Recording

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| By Mr.jones
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Mr.jones
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Quizzes Created: 4 | Total Attempts: 12,987
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  • 1/10 Questions

    What converts a sound wave into an electric signal?

    • An MP3
    • A microphone
    • A cassette
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About This Quiz

This quiz tests some basic knowledge of how sound is recorded on analog and digital media.

Technology Quizzes & Trivia

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  • 2. 

    Where does the microphone's electric signal go first in a digital device?

    • To the CD

    • Into an analog-to-digital converter (ADC)

    • In a digital-to-analog converter (DAC)

    Correct Answer
    A. Into an analog-to-digital converter (ADC)
    Explanation
    In a digital device, the microphone's electric signal goes first into an analog-to-digital converter (ADC). This is because the microphone picks up analog sound waves, and in order for the digital device to process and store the sound, it needs to convert the analog signal into a digital format. The ADC converts the continuous analog signal into discrete digital samples, which can then be processed and stored by the digital device.

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  • 3. 

    How does digital media store information?

    • As 1's and 0's

    • As an electric current

    • As a complete wave

    Correct Answer
    A. As 1's and 0's
    Explanation
    Digital media stores information as 1's and 0's, which is the binary code. In digital systems, data is represented using binary digits, where 1 represents an "on" state and 0 represents an "off" state. This binary code is used to encode and store all types of information, such as text, images, videos, and audio. Each binary digit is known as a bit, and a combination of multiple bits forms bytes, which are used to represent larger units of data. By utilizing this binary representation, digital media can efficiently store and process vast amounts of information.

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  • 4. 

    Where does the microphone's electric signal go first in an analog device?

    • To a tape or record

    • To a wire wrapped around a piece of metal

    • To a speaker

    Correct Answer
    A. To a wire wrapped around a piece of metal
    Explanation
    In an analog device, the microphone's electric signal first goes to a wire wrapped around a piece of metal. This wire, known as a coil, acts as an electromagnet. When the sound waves hit the microphone, it produces an electric current that travels through the coil, creating a magnetic field. This magnetic field interacts with another magnet or coil in the device, which then converts the electrical signal into sound or amplifies it. This initial step of sending the electric signal to a wire wrapped around a piece of metal is crucial for the functioning of an analog device.

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  • 5. 

    What's a major advantage of digital over analog?

    • Digital data can be compressed and made really small

    • It's cheaper

    • It stores a complete sound wave

    Correct Answer
    A. Digital data can be compressed and made really small
    Explanation
    Digital data can be compressed and made really small, which is a major advantage over analog. This means that large amounts of data can be stored in a compact form, making it easier to transmit and store. Compression algorithms can remove redundant or unnecessary information from the data, resulting in smaller file sizes without significant loss in quality. This allows for efficient data transfer and storage, making digital technology more versatile and convenient compared to analog.

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  • 6. 

    Which is a major disadvantage of digital over analog?

    • It costs more

    • CD's can degrade, so you need to back them up

    • It lasts forever

    Correct Answer
    A. CD's can degrade, so you need to back them up
    Explanation
    The major disadvantage of digital over analog is that CD's can degrade, so you need to back them up. Unlike analog formats, digital media such as CDs are susceptible to degradation over time due to factors like scratches, disc rot, or disc deterioration. This can lead to loss of data and the need for regular backups to prevent permanent loss.

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  • 7. 

    What does the ADC take from the electrical signal?

    • Samples

    • The entire wave

    • Fidelity

    Correct Answer
    A. Samples
    Explanation
    The ADC (Analog-to-Digital Converter) takes samples from the electrical signal. This means that it measures the value of the signal at specific points in time and converts it into a digital representation. By taking samples, the ADC is able to capture and digitize the analog signal, allowing it to be processed and analyzed by digital systems.

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  • 8. 

    What is analog technology based on?

    • The microchip

    • The sensor

    • The electromagnet

    Correct Answer
    A. The electromagnet
    Explanation
    Analog technology is based on the electromagnet. Electromagnets are used in analog devices to convert electrical signals into mechanical motion or vice versa. They are crucial components in devices like speakers, motors, and generators, which are commonly used in analog technology. By controlling the strength of the electromagnet, analog signals can be manipulated and transmitted. Therefore, the electromagnet is the foundation of analog technology.

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  • 9. 

    Why do some people still like analog better than digital?

    • Analog equipment takes up less space

    • Analog equipment is cheaper

    • They say it sounds better

    Correct Answer
    A. They say it sounds better
    Explanation
    Some people prefer analog equipment over digital because they believe it produces a better sound quality. They argue that analog technology captures sound in a more natural and authentic way, resulting in a warmer and more pleasing audio experience. This preference is subjective and varies from person to person.

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  • 10. 

    When electricity creates a magnetic field, it's called:

    • An electromagnetic spectrum

    • Binary

    • Electrical induction

    Correct Answer
    A. Electrical induction
    Explanation
    Electrical induction is the correct answer because when electricity flows through a conductor, it generates a magnetic field around it. This phenomenon is known as electrical induction, where the electric current induces a magnetic field. The term "electromagnetic spectrum" refers to the range of all possible frequencies of electromagnetic radiation, and "binary" refers to a system of numbering using only two digits.

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  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Dec 16, 2009
    Quiz Created by
    Mr.jones
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