[Vorbis] Tremor channel order

[D K]

Hi ,
 I was trying to guess the channel order or Tremor decoder for 5.1 channel
file.
Though the standard state it to be FL,C,FR,RL,RR,LFE  but in my opinion its
FL,C,FR, LFE  RL,RR.
I am not sure if my guess is correct . I came to this conclusion after
downmixing from five to two channels.
If i assume the channel order to be as per the standard then my two channel
output is not correct but if i take it to be FL,C,FR, LFE  RL,RR.
then i can hear the output perfectly fine.
I used matlab also but could not figure out which one is LFE as i was
expcting the FFT plot to be less then 400 hz atleast.
I tried listening but all the channels seems to have same content.
I would appreciate if somebody can tell me how to decide which one is LFE
out of all 6 channels.
thanks,
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