COMPUTER SOFTWARE
TYPES OF SOFTWARE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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sampling
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set intervals
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sample rate
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Hertz
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sample resolution
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kibibytes
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data analysis
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once per second
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colour depth
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sound quality
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Detailed explanation-1: -The correct answer is bit depth. In digital audio using pulse-code modulation (PCM), bit depth is the number of bits of information in each sample, and it directly corresponds to the resolution of each sample.
Detailed explanation-2: -Bit depth refers to the number of bits used to record each sample. Just as with images, the higher the bit depth, the more accurately a sound can be recorded, but the larger the file size. Typical bit depths are 16 bit and 24 bit.
Detailed explanation-3: -When a sound is recorded for storage on a digital device, the sound wave is sampled at regular intervals and the height of the wave is stored as a number. The number of times per second that the wave is measured is called the sampling frequency and is measured in Hertz.
Detailed explanation-4: -1 MHz (Megahertz) means one million times per second. The more frequently the sound is sampled, the better the quality and smoother the playback will sound. For sound, this sampling normally occurs 44, 100 times per second. We call this the Sample Resolution and it is normally expressed as 44.1kHz.