COMPUTER ARCHITECTURE
SECONDARY STORAGE DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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bytes per sample * channels * height + number of minutes
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samples per second * number of seconds * 1.1
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samples per second * bytes per sampel * duration
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sampels pers second * bytes per sample * channels * duration in seconds
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Detailed explanation-1: -The calculated file size will be measured in bytes (because we have divided the answer by 8), the sampling frequency will be in hertz, the bit depth in number of bits and the length will be in seconds.
Detailed explanation-2: -To get a rough idea of how big a file is going to be, you can use these calculations: Sample rate (in hertz not kilohertz) x Bit rate x Number of channels x Number of seconds = total bits. Total bits/8 = bytes. Bytes/1, 000, 000 = megabytes or MBs.
Detailed explanation-3: -1) First, calculate the bit rate using the formula sampling frequency * bit depth * No. of channels. 2) Using the bit rate calculated, we multiply it by the length of the recording in seconds. Audio recorded in 192kHz/24-bit will take up 6.5x more file space than one sampled at 44.1kHz/16-bit.
Detailed explanation-4: -The size of an audio frame is calculated by multiplying the sample size in bytes by the number of channels, so a single frame of stereo 16-bit audio is 4 bytes long and a single frame of 5.1 floating-point audio is 24 (4 bytes per sample multiplied by 6 channels).