Audio File Size MP3 vs M4A

July 1, 2009 § Leave a comment

I am reporting the impact of bitrate on audio file size in both MP3 & M4A. Here I use a single simple sound file.

MP3

64 kbps (52KB)
128 kbps (100KB)
192 kbps (148KB)

M4A

64 kbps (32KB)
128 kbps (44KB)
192 kbps (52KB)

Note: kbps refers to bitrate and KB refers to file size.

You can keep a high bitrate in M4A with much smaller file size. This is a small audio file. You will see more dramatic reduction if you use an audio with much longer audio length.

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