# Audio Compression

**URL:** <https://forums.kodeco.com/t/audio-compression/11649>\
**Category:** iOS\
**Created:** [March 31, 2016, 12:06pm UTC](https://forums.kodeco.com/t/audio-compression/11649 "2016-03-31T12:06:12Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![perrbear](https://assets.chunter.kodeco.com/user_avatar/forums.kodeco.com/perrbear/32/4575_2.png) [@perrbear](https://forums.kodeco.com/u/perrbear)\
**Post date:** [March 31, 2016, 12:06pm UTC](https://forums.kodeco.com/t/audio-compression/11649/1 "2016-03-31T12:06:12Z")

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I am creating a game that uses a lot of sound bites (15M of mp3). Apple best practices talk about compressed formats. If I use “afconvert -f AIFC -d ima4 sound.wav” to compress any of the files, I get one almost four times the size. Can I use mp3s? Is there another way of compressing files, or am I doing something wrong?

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**Author:** ![jgnovak](https://assets.chunter.kodeco.com/user_avatar/forums.kodeco.com/jgnovak/32/70660_2.png) [@jgnovak](https://forums.kodeco.com/u/jgnovak)\
**Post date:** [April 14, 2016, 3:05am UTC](https://forums.kodeco.com/t/audio-compression/11649/2 "2016-04-14T03:05:54Z")

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Try [CAF](https://developer.apple.com/library/mac/documentation/MusicAudio/Reference/CAFSpec/CAF_intro/CAF_intro.html) files

afconvert -f caff -d ima4 yourfile.wav