View Full Version : Right channel order with six waves to 5.1 AAC encoding
AlexeyS
16th July 2005, 18:21
Still can't find right answer for this question. Some people say "C, FL, FR, SL, SR, LFE" is right order.
I've tried to encode this way with Belight and got wrong channels.
This way seems right for me:
FL, FR, C, SR, SL, LFE
What channel order is right. Still there is no normal answer for this question. :confused:
AlexeyS
16th July 2005, 19:07
I've made sample. Could somebody who have good 5.1 sound system on own copmuter try this 5.1 AAC file (http://www.callofdutyserver.net/sample.mp4).
Is this channel order right?
Take this (ftp://ftp1.fraunhofer.de/institute/iis/amm/mp3surround/DemoSongs/6_Channel_ID.wav) 5.1ch test WAV as reference.
Regards,
Oki
AlexeyS
16th July 2005, 23:13
Take this (ftp://ftp1.fraunhofer.de/institute/iis/amm/mp3surround/DemoSongs/6_Channel_ID.wav) 5.1ch test WAV as reference.
Thanks, but I've encoded six mono waves to 5.1 AAC (not one 5.1 wav I mean)...
tebasuna51
17th July 2005, 01:37
The correct order for BeLigth (bsn encoder) is: FL, FR, C, LFE, SL, SR
This order is also the defect for Faac.
If you use aacenc32 the order is: C, FL, FR, SL, SR, LFE
AlexeyS
17th July 2005, 01:46
The correct order for BeLigth (bsn encoder) is: FL, FR, C, LFE, SL, SR
I use Belight with Nero AAC Plugin. And this order looks like right. Thanks.
bond
17th July 2005, 12:32
the only right channel order for 5.1 aac is
C, L, R, SL, SR, LFE
whether you have to feed some encoders with different ones, dunno, the output channel order has to be as defined above
AlexeyS
17th July 2005, 12:59
the only right channel order for 5.1 aac is
C, L, R, SL, SR, LFE
whether you have to feed some encoders with different ones, dunno, the output channel order has to be as defined above
I've tried Belight/Besweet with Nero AAC Plugin installed. When I try to convert six waves (made with Belight from 5.1 AC3 file) to 5.1 AAC with this order - C, L, R, SL, SR, LFE, I get center channel in front left speaker. :confused:
Same problem when I use my USB headphone speakers. Center channel is always in left speaker.
Tried on few AC3s...
bond
17th July 2005, 13:06
why are you going via 6 wavs anyways?
tebasuna51
18th July 2005, 01:51
I use Belight 0.2.2b4 with Nero (6.6.0.1) aac plugin.
I take the 6_Channel_ID.wav (Oki) renamed to L_R_C_LFE_SL_SR.wav (to identify the channel order) and make the next conversions with Belight:
L_R_C_LFE_SL_SR.wav -> Correct.mp4
L_R_C_LFE_SL_SR.wav -> Wrong.ac3
L_R_C_LFE_SL_SR.wav -> FL.wav, FR.wav, ..., SR.wav
L_R_C_LFE_SL_SR.mux -> Correct.mp4
L_R_C_LFE_SL_SR.mux -> Wrong.ac3
L_C_R_SL_SR_LFE.mux -> Correct.ac3
L_C_R_SL_SR_LFE.mux -> L_C_R_SL_SR_LFE.wav
L_C_R_SL_SR_LFE.wav -> Correct.ac3
Correct.ac3 -> Correct.mp4
Correct.ac3 -> L_R_C_LFE_SL_SR.wav
Correct.ac3 -> FL.wav, FR.wav, ..., SR.wav
With Foobar:
Correct.mp4 -> L_R_C_LFE_SL_SR.wav
With Faad:
Correct.aac -> L_R_C_LFE_SL_SR.wav
With Faac:
L_R_C_LFE_SL_SR.wav -> Correct.aac
With aacenc32.exe
C_L_R_SL_SR_LFE.wav -> Correct.aac
AlexeyS
18th July 2005, 10:05
why are you going via 6 wavs anyways?
I use six waves only when I need some "external editing".
AlexeyS
18th July 2005, 10:34
I've muxed this file (http://www.callofdutyserver.net/br/audio.mp4) with BeLight.
Is channel order right on your 5.1?
tebasuna51
18th July 2005, 17:03
Is wrong.
Your C channel contents dialogs. OK
Your L channel maybe a L or R
Your R channel maybe a L or R
Your LFE channel maybe a SL or SR
Your SL channel maybe a SL or SR
Your SR channel contents LFE sound
You can verify this with:
sample.mp4 -(foobar)-> L_R_C_LFE_SL_SR.wav -(Belight)-> FL.wav, FR.wav, ..., SR.wav
And listen each channel.
AlexeyS
18th July 2005, 17:06
Check out audio.mp4 please which is above your last post.
tebasuna51
18th July 2005, 17:21
Sorry, I take your first sample
audio.mp4 is wrong only for this: SR <-> LFE
AlexeyS
18th July 2005, 17:34
Sorry, I take your first sample
audio.mp4 is wrong only for this: SR <-> LFE
So right order for six waves to 5.1 AAC with Belight is FL, FR, C, LFE, SL, SR.
Thanks for help.
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