Video/audio data rates for avi files

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The discussion centers around confusion regarding the calculation of overall data rates for a video file. The file in question is an AVI format with specific audio and video characteristics, including a size of 102,892 KB, a resolution of 640x480, and a duration of 11 minutes and 36 seconds. The audio has a bit rate of 127 kbps, while the video is at 147 kbps. The participant calculated the overall data rate to be approximately 1200 kbps, but noted that the combined audio and video bit rates only total around 300 kbps, leading to confusion about the correct method for calculating data rates. The conversation highlights the discrepancy between expected and actual bit rates, suggesting that the video should reflect a higher data rate based on its size and duration.
Pengwuino
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Ok something is confusing me, I have this file here...

.avi

102,892 KB size
640x480
11m:36s

Audio:
Bit rate: 127kbps
MPEG Layer-3

Video:
23 frames/econd
147kbps
24bit
XVID Compression

Now I'm kind of confused... I calculated the overall data rate to be 1200kbps or so... yet those only seem to add up to 300kbps... how are you suppose to calculate this stuff?
 
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audio or video rate?
 
Yah it doesn't add up dduardo :) The video should have been 1200kbps using the real size and time but the two bit rates don't add up to that.
 

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