The document discusses formulas for calculating audio and video file sizes based on factors like duration, sample rate, bit depth, number of channels, frames per second, pixel resolution, and bit depth per pixel. It provides examples calculating the file size of a 40 second mono audio file at 44.1KHz and 16-bit sample depth (3.36Mb), and a 3 minute 22 second stereo song at CD quality and 24-bit sample depth (50.97Mb). It also calculates the file size of a 30 second video at 24 fps, 800x600 resolution and 16-bit color (659.18Mb) and a 3 minute 10 second video at 25 fps, 1024x768 resolution and 24-bit color (

2. Audio File Size
Formula
File size = Time (s) x Sample Rate (Hz) x Bit Depth x Number of Channels

3. Audio File Size
Example 1
Calculate the size of a 40 second audio file sampled at 44.1KHz using a sample
depth of 16 bit. The audio is mono.

4. Audio File Size
Example 1
Calculate the size of a 40 second audio file sampled at 44.1KHz using a sample
depth of 16 bit. The audio is mono.
File Size = Time x Sample Rate x Bit Depth x Channels

5. Audio File Size
Example 1
Calculate the size of a 40 second audio file sampled at 44.1KHz using a sample
depth of 16 bit. The audio is mono.
File Size = Time x Sample Rate x Bit Depth x Channels

6. Audio File Size
Example 1
Calculate the size of a 40 second audio file sampled at 44.1KHz using a sample
depth of 16 bit. The audio is mono.
File Size = 40 x 44100 x 16 x 1
= 28,224,000 bits
28,224,000 / 8 / 1024 / 1024
= 3.36 Mb

7. Audio File Size
Example 2
Calculate the size of a 3 minute 22 second stereo song sampled at CD quality
using a sample depth of 24 bits.

8. Audio File Size
Example 2
Calculate the size of a 3 minute 22 second stereo song sampled at CD quality
using a sample depth of 24 bits.
File Size = Time x Sample Rate x Bit Depth x Channels

9. Audio File Size
Example 2
Calculate the size of a 3 minute 22 second stereo song sampled at CD quality
using a sample depth of 24 bits.
File Size = Time x Sample Rate x Bit Depth x Channels

10. Audio File Size
Example 2
Calculate the size of a 3 minute 22 second stereo song sampled at CD quality
using a sample depth of 24 bits.
File Size = 202 x 44100 x 24 x 2
= 427,593,600 bits
427,593,600 / 8 / 1024 / 1024
= 50.97 Mb

11. Video File Size
Formula
File size = Time (s) x Frames per Second x Pixels per Frame x Bit Depth

12. Video File Size
Example 1
Calculate the size of an uncompressed 30 second video clip captured at 24 fps.
The video resolution is 800 x 600 with a colour depth of 16 bits.
File Size = Time x Frames per Second x Pixels per Frame x Bit Depth

13. Video File Size
Example 1
Calculate the size of an uncompressed 30 second video clip captured at 24 fps.
The video resolution is 800 x 600 with a colour depth of 16 bits.
File Size = Time x Frames per Second x Pixels per Frame x Bit Depth

14. Video File Size
Example 1
Calculate the size of an uncompressed 30 second video clip captured at 24 fps.
The video resolution is 800 x 600 with a colour depth of 16 bits.
File Size = Time x Frames per Second x Pixels per Frame x Bit Depth
= 30 x 24 x 800 x 600 x 16
= 5,529,600,000 bits
5,529,600,000 / 8 / 1024 / 1024 / 1024
= 659.18 Mb

15. Video File Size
Example 2
A video is captured at 25 fps and is 3 minutes 10 seconds in length. The video
resolution is 1024 x 768 pixels and each pixel is represented using 24 bits.
Assuming the video is uncompressed, what will its file size be?

16. Video File Size
Example 2
A video is captured at 25 fps and is 3 minutes 10 seconds in length. The video
resolution is 1024 x 768 pixels and each pixel is represented using 24 bits.
Assuming the video is uncompressed, what will its file size be?
File Size = Time x Frames per Second x Pixels per Frame x Bit Depth

17. Video File Size
Example 2
A video is captured at 25 fps and is 3 minutes 10 seconds in length. The video
resolution is 1024 x 768 pixels and each pixel is represented using 24 bits.
Assuming the video is uncompressed, what will its file size be?
File Size = Time x Frames per Second x Pixels per Frame x Bit Depth

18. Video File Size
Example 2
A video is captured at 25 fps and is 3 minutes 10 seconds in length. The video
resolution is 1024 x 768 pixels and each pixel is represented using 24 bits.
Assuming the video is uncompressed, what will its file size be?
File Size = Time x Frames per Second x Pixels per Frame x Bit Depth
= 190 x 25 x 1024 x 768 x 24
= 89,653,248,000 bits
89,653,248,000 / 8 / 1024 / 1024 / 1024
=10.44 Gb