# Mixed format sound files: bad practice?

**URL:** <https://community.thunkable.com/t/mixed-format-sound-files-bad-practice/716244>\
**Category:** Questions about Thunkable X\
**Created:** [August 2, 2020, 12:10pm UTC](https://community.thunkable.com/t/mixed-format-sound-files-bad-practice/716244 "2020-08-02T12:10:56Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![penny](https://avatars.discourse-cdn.com/v4/letter/p/8baadc/32.png) [@penny](https://community.thunkable.com/u/penny)\
**Post date:** [August 2, 2020, 12:10pm UTC](https://community.thunkable.com/t/mixed-format-sound-files-bad-practice/716244/1 "2020-08-02T12:10:56Z")

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Is it okay to mix .m4a and .mp3 etc sound files? Anyone found a loading speed improvement with either?  
🙂

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**Author:** ![hdawc](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/hdawc/32/119068_2.png) [@hdawc](https://community.thunkable.com/u/hdawc)\
**Post date:** [August 2, 2020, 2:40pm UTC](https://community.thunkable.com/t/mixed-format-sound-files-bad-practice/716244/2 "2020-08-02T14:40:19Z")

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@penny I would research which work with both Android and iOS. MP3 seems like the logical choice, OGG maybe another format, and I’ve found it works fine.

If you want the best sound quality and it’s something small like a ‘ding’, you _could_ use WAV. Android is fine with all three, not sure about iOS.

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**Author:** ![penny](https://avatars.discourse-cdn.com/v4/letter/p/8baadc/32.png) [@penny](https://community.thunkable.com/u/penny)\
**Post date:** [August 3, 2020, 5:42am UTC](https://community.thunkable.com/t/mixed-format-sound-files-bad-practice/716244/3 "2020-08-03T05:42:48Z")

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Thanks hdawc,

MP3 IS the logical choice. It seems m4a files cause problems on some Android devices.  
🙂

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**Author:** ![hdawc](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/hdawc/32/119068_2.png) [@hdawc](https://community.thunkable.com/u/hdawc)\
**Post date:** [August 4, 2020, 2:57am UTC](https://community.thunkable.com/t/mixed-format-sound-files-bad-practice/716244/4 "2020-08-04T02:57:52Z")

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Heya, if you found my answer to be your solution, could you click the Solution button at the  
[bottom of my previous reply](http://community.thunkable.com/t/mixed-format-sound-files-bad-practice/716244/2)?

> _Example:_  
> ![solution](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/c/3/c36330eeaa6d3ed6898f69febf022566dd0cbfb7.png)

Thanks 😊

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**Author:** ![ioannis](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/ioannis/32/146956_2.png) [@ioannis](https://community.thunkable.com/u/ioannis)\
**Post date:** [November 8, 2024, 12:26pm UTC](https://community.thunkable.com/t/mixed-format-sound-files-bad-practice/716244/5 "2024-11-08T12:26:52Z")

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