Representation of sound- Flash Cards

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Laura Ridley
Fichas por Laura Ridley, actualizado hace más de 1 año
Laura Ridley
Creado por Laura Ridley hace alrededor de 9 años
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The process of converting analogue sound into a digital file containing binary is called...? Sampling
How will a large interval affect the quality of the audio and file size? The larger the interval the smaller the file size and the worse the audio quality.
What is an Interval The amount of time between two samples.
How will a smaller interval between samples affect the quality of the audio and file size? The smaller the interval the larger the file size and the better the audio quality.
Sampling is.... The process of converting an analogue signal into a digital file containing binary values
The height of a wave or its loudness is referred to as its.....? Amplitude
Amplitude is...? The height of a wave, this represents its loudness.
What is sampling measured in? Hertz (Hz) Music files have a typical sample rate of 44,100 hz that means 44,100 samples are taken per second.
How does sampling work? 1. Samples are taken at regular intervals 2. The amplitude of the track is measured at each interval 3. The samples are converted from analogue sound into a digital file containing binary values.
What are the two main types of sound compression? Lossy and Lossless
What is compression? The process of removing data to reduce the file size
How will using lossless compression affect the quality of sound? Sound quality remains the same and the file can be returned to its original state
How will using lossy compression affect the quality of sound? Some of the audio data is permanently deleted so it is no longer like the original. The part that is deleted is the less noticeable part
One advantage of using lossy compression is? File size is reduced
One disadvantage of using lossy compression is? File can not be returned to its original sate and quality will be lower
One advantage of using lossless compression is? The sound file can be returned to its original state
One disadvantage of using lossless compression is? The file size is not reduced as much as with lossy compression
What is Bit depth? The amount of data or bits received per sample
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