fixed command to remove header

Author: ks61625

content/docs/wiki/general/audio-file-format.md

@@ -77,5 +77,5 @@ But the in experiments used encoder did not have an obvious feature to do this.
 **We have developed a tool called [teddy](https://github.com/toniebox-reverse-engineering/teddy) to encode and decode these files.**
 
 # Audio file extraction with Linux OS
-- Remove Header of the file with ´dd bs=4092 skip=1 if=500304E0 of=trim.ogg´
+- Remove Header of the file with ´dd bs=4096 skip=1 if=500304E0 of=trim.ogg´
 - then just use ffmpeg to convert it into mp3 ´ffmpeg -i trim.ogg done.mp3´