How Big Is an Audiobook MP3? File Size Explained by Length and Quality
Discover how audiobook MP3 file sizes vary by length and audio quality, from 64 kbps to 128 kbps encoding rates.
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The size of an audiobook MP3 can vary significantly based on the length of the book and the quality of the audio file. On average, an hour of audiobook content in MP3 format, encoded at a standard quality of 64 kbps, will be about 28.8 MB. For a typical book of about 10 hours, this means the audiobook could be approximately 288 MB. For higher quality audio at 128 kbps, the size could double, leading to a larger file size for the same length of content.
FAQs & Answers
- What affects the size of an audiobook MP3 file? The size depends primarily on the audiobook's length and the audio quality or bitrate, with higher bitrates resulting in larger files.
- How large is a typical 10-hour audiobook MP3 file? A 10-hour audiobook encoded at 64 kbps usually takes about 288 MB, but at 128 kbps, the file size could be roughly double.
- What is the difference between 64 kbps and 128 kbps MP3 quality for audiobooks? 128 kbps offers higher audio quality compared to 64 kbps, but it also results in significantly larger file sizes.