# \[F\] Displays MPEG1-L3 as L1 if Emphasis set to other than None

**URL:** https://community.mp3tag.de/t/f-displays-mpeg1-l3-as-l1-if-emphasis-set-to-other-than-none/5863
**Category:** Fixed Bugs
**Tags:** bug-fixed
**Created:** [December 8, 2007, 9:37pm UTC](https://community.mp3tag.de/t/f-displays-mpeg1-l3-as-l1-if-emphasis-set-to-other-than-none/5863 "2007-12-08T21:37:55Z")
**Posts on this page:** 1
**Showing post:** 1

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### Author: ![Moonbase](https://community.mp3tag.de/user_avatar/community.mp3tag.de/moonbase/32/207_2.png) [@Moonbase](https://community.mp3tag.de/u/Moonbase)
#### Post date: [December 8, 2007, 9:37pm UTC](https://community.mp3tag.de/t/f-displays-mpeg1-l3-as-l1-if-emphasis-set-to-other-than-none/5863/1 "2007-12-08T21:37:55Z")

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Is it possible that there is a bug in the MPEG Decoder?

I noticed recently, that Mp3tag usually shows MPEG-1 Layer 3 audio files erroneously as "MPEG 1 Layer I" _if_ the "Emphasis" bits are set to anything other then "None" (i.e. "50/15", "CCITJ.17" or "Unknown"). In this case, playing length, bitrate and stereo mode are usually also shown wrongly.

I could "repair" a set of these files using MP3SE by stating that "Emphasis" was "None" (well, it wasn't, actually... but for test's sake, it's just 2 bits) - all info came suddenly up correctly!

Interestingly enough, _most_ players would decode the MP3 correctly as "MPEG-1 Layer 3", some stating a wrong "Emphasis" (i.e. Winamp 2.78c would swear it was "illegal"). So I assume this might be a bug in the underlying MP3 decoding library - could this be fixed for Mp3tag?

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_[View the full topic](https://community.mp3tag.de/t/f-displays-mpeg1-l3-as-l1-if-emphasis-set-to-other-than-none/5863)._