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Converting from Sound to Analogue

Quiz by GCSE Computer Science Teacher 2

GCSE (AQA)
Computer Science
English National Curriculum

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12 questions
Show answers
  • Q1
    What does ADC stand for?
    Audio to digital compression
    Analogue to digital compression
    Analogue to digital converter
    Album to digital converter
    30s
    3.3.7.a
  • Q2
    What is the outcome of the ADC process?
    Analogue is compressed to smaller file formats
    Audio sounds are converted to analogue
    Soundwaves are represented in binary (digital)
    Digital sound is represented in analogue
    30s
    3.3.7.a
  • Q3
    Why must analogue sound be converted to digital?
    So that computers can understand it in a binary format
    Because its easier for humans to understand
    To have a digital copy of the sounds
    So that it takes up less computer storage
    30s
    3.3.7.a
  • Q4
    What is the sample rate?
    The frequency with which the sound changes in an audio recording
    The number of recordings you have of the same sound
    The size of the total audio sample
    The frequency with which you record the amplitude of the sound
    30s
    3.3.7.a
  • Q5
    What is the sample resolution?
    The number of bits used to store each sample
    The frequency of the samples taken per second
    The range of rounds recorded
    The volume of the sound recorded
    30s
    3.3.7.a
  • Q6
    What is the Amplitude?
    The loudest sound recorded in a sample
    The maximum height of sound wave from the middle of the wave to its peak or trough
    The frequency with which you record the amplitude of the sound
    The number of bits used to store each sample
    30s
    3.3.7.a
  • Q7
    What is Hertz in relation to sound conversion?
    The number of different high pitched sounds recorded
    The unit of frequency used to measure how many sound waves per second
    The speed at which the conversation can be processed
    The number of bits used to stored each sample
    30s
    3.3.7.a
  • Q8
    What is the common audio sample rate for music?
    44,100 Hertz
    32,000 Hertz
    40 Khz
    8 Khz
    30s
    3.3.7.a
  • Q9
    What is the bit depth normally found on a CD?
    8 bits
    16 bits
    32 bits
    64 bits
    30s
    3.3.7.a
  • Q10
    What is the bit depth normally found on a DVD?
    24 bits
    8 bits
    32 bits
    16 bits
    30s
    3.3.7.a
  • Q11
    What is the maximum resolution of a recording with a bit depth of 16?
    65, 536
    255
    44,100
    100,000
    30s
    3.3.7.a
  • Q12
    What happens is an audio file is compressed after conversion?
    The length of the recording in shorted, removing any silent parts
    The file sizes increases to match the maximum resolution
    The sample rate is reduced, reducing the resolution and file size
    The sample rate in increased, increasing the resolution and file size
    30s
    3.3.7.a

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