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You have recorded a video with the following specification: Frame size: 1024 x 768 pixels Color mode: RGB Bits per pixel: 24 bits (3 bytes) Frame rates: 30 frames per second Video length: 3 mimutes Answer the following question by using the standard notation of 1IMB = 1024² bytes. Convert all file size to MB, megabyte and data rate in Mbps, megabit per second. Give you answer up to 2 decimal places. (a) Calculate the size of the uncompressed video data. (b) The same duration of audio is recorded digitally and added to the video. The audio is recorded with stereo channel CD-quality sound. Calculate the minimum data rate for this video (ie. after adding the recorded audio) to be played in real-time. State your assumptions if any. (c) You have been informed that the recorded audio signal has the highest frequency of 10kHz. Reduce the total video file size without any audio aliasing. Justify your answer.

You have recorded a video with the following specification: Frame size: 1024 x 768 pixels Color mode: RGB Bits per pixel: 24 bits (3 bytes) Frame rates: 30 frames per second Video length: 3 mimutes Answer the following question by using the standard notation of 1IMB = 1024² bytes. Convert all file size to MB, megabyte and data rate in Mbps, megabit per second. Give you answer up to 2 decimal places. (a) Calculate the size of the uncompressed video data. (b) The same duration of audio is recorded digitally and added to the video. The audio is recorded with stereo channel CD-quality sound. Calculate the minimum data rate for this video (ie. after adding the recorded audio) to be played in real-time. State your assumptions if any. (c) You have been informed that the recorded audio signal has the highest frequency of 10kHz. Reduce the total video file size without any audio aliasing. Justify your answer.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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You have recorded a video with the following specification: Frame size: 1024 x 768 pixels Color mode: RGB Bits per pixel: 24 bits (3 bytes) Frame rates: 30 frames per second Video length: 3 mimutes Answer the following question by using the standard notation of 1MB = 1024° bytes. Convert all file size to MB, megabyte and data rate in Mbps, megabit per second. Give you answer up to 2 decimal places. (a) Calculate the size of the uncompressed video data. (b) The same duration of audio is recorded digitally and added to the video. The audio is recorded with stereo channel CD-quality sound. Calculate the minimum data rate for this video (ie. after adding the recorded audio) to be played in real-time. State your assumptions if any. (c) You have been informed that the recorded audio signal has the highest frequency of 10kHz. Reduce the total video file size without any audio aliasing. Justify your answer. (d) Calculate compression ratio that would be needed to transmit the file size in Q1(c) on communication channel with a bandwidth of 10MHZ using four signal levels. Suggest TWO (2) methods to further reduce the file size.
Transcribed Image Text:You have recorded a video with the following specification: Frame size: 1024 x 768 pixels Color mode: RGB Bits per pixel: 24 bits (3 bytes) Frame rates: 30 frames per second Video length: 3 mimutes Answer the following question by using the standard notation of 1MB = 1024° bytes. Convert all file size to MB, megabyte and data rate in Mbps, megabit per second. Give you answer up to 2 decimal places. (a) Calculate the size of the uncompressed video data. (b) The same duration of audio is recorded digitally and added to the video. The audio is recorded with stereo channel CD-quality sound. Calculate the minimum data rate for this video (ie. after adding the recorded audio) to be played in real-time. State your assumptions if any. (c) You have been informed that the recorded audio signal has the highest frequency of 10kHz. Reduce the total video file size without any audio aliasing. Justify your answer. (d) Calculate compression ratio that would be needed to transmit the file size in Q1(c) on communication channel with a bandwidth of 10MHZ using four signal levels. Suggest TWO (2) methods to further reduce the file size.
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