# \[X\] Wrong kBit/s and length

**URL:** https://community.mp3tag.de/t/x-wrong-kbit-s-and-length/7391
**Category:** No Bugs
**Created:** [October 27, 2008, 9:55pm UTC](https://community.mp3tag.de/t/x-wrong-kbit-s-and-length/7391 "2008-10-27T21:55:32Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![fuzi1968](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/f/9e8a1a/32.png) [@fuzi1968](https://community.mp3tag.de/u/fuzi1968)
#### Post date: [October 27, 2008, 9:55pm UTC](https://community.mp3tag.de/t/x-wrong-kbit-s-and-length/7391/1 "2008-10-27T21:55:32Z")

</div>

The latest 2.42 shows a wrong kBit/s & Frequency on some MP3's.

Tag & Rename 3.5 RC1 shows it correctly - also RealPlayer.

All files are 320 kBit/s (except the one with 384).

The frequency is always 44100 Hz - (except the one with 48000 Hz).

See Screen Shot:  
 ![](https://community.mp3tag.de/uploads/default/original/1X/1096088407dc8328df178a0518697b273715c786.png)

Florian, if you need the wrong displayed MP3's - please contact me.

![](https://community.mp3tag.de/uploads/default/original/1X/1096088407dc8328df178a0518697b273715c786.png)

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<div class="post-metadata">

### Author: ![fuzi1968](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/f/9e8a1a/32.png) [@fuzi1968](https://community.mp3tag.de/u/fuzi1968)
#### Post date: [October 28, 2008, 9:01pm UTC](https://community.mp3tag.de/t/x-wrong-kbit-s-and-length/7391/2 "2008-10-28T21:01:42Z")

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Hi Florian,

I've just analyzed the one file of the screen shot where mp3tag 2.42 shows 32 kBit/s and 48.000 Hz - but other software shows 320 kBit/s and 44.100 Hz (and it sounds like that).

Here is the analyze of the 32-Bit-Header:

```
00000000h: EE 56 A0 00 B9 90 69 7D CA 54 00 26 DE 17 5A 19; îV .¹�i}ÊT.&Þ.Z.

```

32-Bits - which is

```
EE = 1110 1110
56 = 0101 0110
A0 = 1010 0000
00 = 0000 0000

```

and the header definition (the number of bits in paranthesis)

```
A Syncword (12)
B MPEG Version (1)
C MPEG Layer (2)
D Protection Bit (1)
E Bitrate (4)
F Sampling Frequency (2)
G Padding (1)
H Private (1)
I Channel-Mode (2)
J Mode-Extension (2)
K Copyright (1)
L Original (1)
M Emphasis (2)

```

which are the bits:

```
A 111011100101
B 0
C 11
D 0
E 1010
F 00
G 0
H 0
I 00
J 00
K 0
L 0
M 00

```

and when I look on e.g.

[http://swlab.et.fh-duesseldorf.de/pc\_pool/...n/Kapitel32.htm](http://swlab.et.fh-duesseldorf.de/pc_pool/lernmodule/multimediadateien/Kapitel32.htm)

so  
B is not set =\> MPEG 2  
C is 11 =\> Layer III

[mp3tag.de](http://mp3tag.de) shows MPEG 1 / Layer I ...

E (Bitrate) = 1010 which is in the table under MPEG 2 / Layer III =\> 160 kBit/s, but [mp3tag.de](http://mp3tag.de) shows 32kBit/s.

F (Sampling Freq). = 00 = 22.050 Hz ... and not 48.000 Hz

Hmm .. all sounds very mysterious with this file .. RealPlayer shows 320 kBit/s, Tag & Rename shows 320 kBit/s & 44.100 Hz (Lame 3.82), Directory Opus plugin shows the same values as mp3tag - but it's definitely not 32kBit/s 😉

Please let me know if you need the MP3 file - THX.

---

<div class="post-metadata">

### Author: ![Sebastian\_Mares](https://community.mp3tag.de/user_avatar/community.mp3tag.de/sebastian_mares/32/9285_2.png) [@Sebastian\_Mares](https://community.mp3tag.de/u/Sebastian_Mares)
#### Post date: [June 16, 2009, 7:25pm UTC](https://community.mp3tag.de/t/x-wrong-kbit-s-and-length/7391/3 "2009-06-16T19:25:14Z")

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You didn't pick up the right sequence (frame header) since syncwords have the first 12 bits set, so it should be something like FF F? and definitely not EE ??.

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<div class="post-metadata">

### Author: ![Florian](https://community.mp3tag.de/user_avatar/community.mp3tag.de/florian/32/5759_2.png) [@Florian](https://community.mp3tag.de/u/Florian)
#### Post date: [December 28, 2018, 2:24pm UTC](https://community.mp3tag.de/t/x-wrong-kbit-s-and-length/7391/4 "2018-12-28T14:24:29Z")

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