NEW CODEC! 128 kbps and less for 5.1 surround encoding for MPEG4 (Xvid/Divx) movies - Page 2

Sirber · 10th January 2006, 04:30

Does someone got the DS filter work?

3dsnar · 10th January 2006, 07:26

For those who have problems with registering the codec (DS decoder,
to be more precise). Please check if you can find the file: audxdshow.ax
in windows\system32
If yes, please try to register it manually with for example free DirectShowFilterManager software.
If the audxdshow.ax is not present in system32 at all, please download it
(attached to this post). I am sorry for problems and thank you for patience.
BTW. Did anyone try to encode movie with VirtualDubMod and Aud-X?

guada 2 · 10th January 2006, 07:36

@3Dsnar

That is very interesting.
But i noted that it was possible to make (MP3 HQ 192 Khz 48KHZ 5.1) in your guide, whereas you tell in your post that: "New codec! 128 K and less for 5.1"

It's true or no?
Aud-x 1.0 would it be better than the mp3SX 5.1 from Fruehaufer?
Can I use it with a lossless codec?

Thank you to clarify.
Bye.

3dsnar · 10th January 2006, 07:49

Well, I did not want to complicate the title of the new thread

But in fact Aud-X offers 4 levels of encoding quality, mp3 backwards compatible.

1) STRQ - streaming quality -> 80 kbps (mp3 mono backwards compatible)
2) STDQ - (recommended) standard quality -> 128 kbps (mp3 mono backwards compatible)
3) HGHQ - high quality -> 192 kbps (mp3 stereo, Dolby Pro Logic II backwards compatible)
4) SPBQ - superb quality -> 192 kbps (mp3 mono backwards compatible)
--------------------------------------------
Please read more what is the difference between two 192 kbps options, etc.
In general (although I am not to objective here), our 128 kbps is significantly
better than Frauenhofer 192 kbps! Please read the whitepaper and listen to it by your own.
Our both 192 kbps are far more superior to mp3surround (also 192 kbps), and in fact when listened to the sound produced by HQHQ and SPBQ with 5.1 speakers, the decoded signal cannot be distinguished from the original sound
(based on our informal subjective experiments).
But I think that everyone should make a judgement and subjective evaluation individually

3dsnar · 10th January 2006, 08:45

What do you mean by "use it with a lossless codec"?
Lossless codec for video compression?
Ofcourse, it can be used with any video codec, which can be accessed via
VirutalDubMod, or any other software supporting 6 channels for audio. The software must utilize ACM filters, because Aud-X encoder is such a filter

(beside the executable, which also allows to compress with Aud-X, but only separate 6 channel PCM wave files)

CruNcher · 10th January 2006, 10:26

Has this reached the Hydrogenaudio Community yet ?
3dsnar you should really go there you find the real audio experts over there

they also can judge the codec and take it into the next ABX test http://www.hydrogenaudio.org/

3dsnar · 10th January 2006, 10:35

I will do that. Thank you.

dimzon · 10th January 2006, 11:59

Quote:

Originally Posted by Sirber

Wouldn't your codec be better using HE-AAC instead of MP3?

Ogg Vorbis !!!

bond · 10th January 2006, 13:00

Quote:

Originally Posted by Sirber

imagine... a 32kbps HE-AAC v2 + PS using their technology

5.1 at 32kbps

sirber, there is no need to use proprieatary technology for this
mpeg is working itself on a standardised solution for "fake surround info" for aac

dimzon · 10th January 2006, 13:18

Quote:

Originally Posted by bond

sirber, there is no need to use proprieatary technology for this
mpeg is working itself on a standardised solution for "fake surround info" for aac

AFAIK "Mpeg Surround" standart is out!

bond · 10th January 2006, 13:30

Quote:

Originally Posted by dimzon

AFAIK "Mpeg Surround" standart is out!

any link (dont confuse it with the proprieatary fhg mp3 surround...)?
if yes i wonder why nero hasnt announced them implementing this already

dimzon · 10th January 2006, 13:52

Quote:

Originally Posted by bond

any link (dont confuse it with the proprieatary fhg mp3 surround...)?
if yes i wonder why nero hasnt announced them implementing this already

http://codingtechnologies.com/products/mpgsrnd.htm
http://www.hydrogenaudio.org/forums/...hp/t36355.html
http://forum.doom9.org/showthread.php?p=700616

Sirber · 10th January 2006, 14:01

From CT:

Quote:

Combining the new MPEG Surround technology with aacPlus provides high audio quality at bit rates in the range of 64 - 96 kbps for 5.1 multichannel audio signals. This further gain of coding efficiency by a factor of 2-3 extends the existing aacPlus family of codecs towards an even more powerful standard suitable for all kinds of application scenarios from mobile music to home theatre in a forward and backward compatible way.

bond · 10th January 2006, 14:03

Quote:

Originally Posted by dimzon

http://codingtechnologies.com/products/mpgsrnd.htm
http://www.hydrogenaudio.org/forums/...hp/t36355.html
http://forum.doom9.org/showthread.php?p=700616

yes, but this doesnt mean it was standardised for aac, like parametric stereo (eg he-aac v3 or so

)

Morpheus_xx · 10th January 2006, 19:18

I'd like to thank you for this great codec!

It's the first (non-AC3) audio format, that my external DD-receiver recognizes as Dolby Digital!

Is this a "feature" of the compression format or more of the decoder?
If so, is there a AAC-decoder that also sends "AC3 format"-flag when decoding 5.1?

scharfis_brain · 10th January 2006, 19:32

@Morpheus_xx: it is not a AC3-like format. it reencodes the decoded 5.1 audio stream during playback to AC3 and sends it via SPDIF to your Receiver.

@3dsnar: I am not able to append AC3filter to the filterchain, in order to downmik the decoded 5.1 to DPL2, even if I force AC3Filter within MPC.

SeeMoreDigital · 10th January 2006, 19:59

Quote:

Originally Posted by scharfis_brain

@Morpheus_xx: it is not a AC3-like format. it reencodes the decoded 5.1 audio stream during playback to AC3 and sends it via SPDIF to your Receiver.

Agreed....

I actually use FFdshow's audio filters to transcode 6Ch AAC-LC/HE, 6Ch WMA Pro, 6Ch Vorbis, 6Ch WAV and a few others to 6Ch AC3.... on-the-fly.

So it can be done

Morpheus_xx · 10th January 2006, 20:12

Quote:

Originally Posted by SeeMoreDigital

I actually use FFdshow's audio filters to transcode 6Ch AAC-LC/HE, 6Ch WMA Pro, 6Ch Vorbis, 6Ch WAV and a few others to 6Ch AC3.... on-the-fly.

So it can be done

this is new to me and very interesting! can you explain it a bit more detailed hove to "on the fly transcode aac to ac3"?

SeeMoreDigital · 10th January 2006, 21:17

Quote:

Originally Posted by Morpheus_xx

this is new to me and very interesting! can you explain it a bit more detailed hove to "on the fly transcode aac to ac3"?

This post should help get you started: -

http://forum.doom9.org/showthread.ph...812#post718812

And then there's this one, in the same thread: -

http://forum.doom9.org/showthread.ph...978#post718978

Cheers

3dsnar · 11th January 2006, 08:04

Please use our front end, if you would like to transcode
Aud-X to AC3 or 6 channel wave (for tests).
--
Yes, we transcode the Aud-X stream to AC3 in real-time in our DSfilter
(so it goes: File -> Aud-X -> 6 ch PCM -> AC3 -> SPDiF)
I hope that this feature is useful (it should be especially for inexperienced users).
Please check the DSfilter structure in our whitepaper @ www.aud-x.com

10th January 2006, 04:30	#21 \| Link
Sirber retired developer Join Date: Oct 2002 Location: Canada Posts: 8,978	Does someone got the DS filter work? __________________ Detritus Software

10th January 2006, 07:26	#22 \| Link
3dsnar Registered User Join Date: Dec 2005 Location: Proxima Centauri Posts: 315	For those who have problems with registering the codec (DS decoder, to be more precise). Please check if you can find the file: audxdshow.ax in windows\system32 If yes, please try to register it manually with for example free DirectShowFilterManager software. If the audxdshow.ax is not present in system32 at all, please download it (attached to this post). I am sorry for problems and thank you for patience. BTW. Did anyone try to encode movie with VirtualDubMod and Aud-X? Last edited by 3dsnar; 7th February 2006 at 15:18.

10th January 2006, 07:49	#24 \| Link
3dsnar Registered User Join Date: Dec 2005 Location: Proxima Centauri Posts: 315	Well, I did not want to complicate the title of the new thread But in fact Aud-X offers 4 levels of encoding quality, mp3 backwards compatible. 1) STRQ - streaming quality -> 80 kbps (mp3 mono backwards compatible) 2) STDQ - (recommended) standard quality -> 128 kbps (mp3 mono backwards compatible) 3) HGHQ - high quality -> 192 kbps (mp3 stereo, Dolby Pro Logic II backwards compatible) 4) SPBQ - superb quality -> 192 kbps (mp3 mono backwards compatible) -------------------------------------------- Please read more what is the difference between two 192 kbps options, etc. In general (although I am not to objective here), our 128 kbps is significantly better than Frauenhofer 192 kbps! Please read the whitepaper and listen to it by your own. Our both 192 kbps are far more superior to mp3surround (also 192 kbps), and in fact when listened to the sound produced by HQHQ and SPBQ with 5.1 speakers, the decoded signal cannot be distinguished from the original sound (based on our informal subjective experiments). But I think that everyone should make a judgement and subjective evaluation individually Last edited by 3dsnar; 1st February 2006 at 14:08.

10th January 2006, 08:45	#25 \| Link
3dsnar Registered User Join Date: Dec 2005 Location: Proxima Centauri Posts: 315	What do you mean by "use it with a lossless codec"? Lossless codec for video compression? Ofcourse, it can be used with any video codec, which can be accessed via VirutalDubMod, or any other software supporting 6 channels for audio. The software must utilize ACM filters, because Aud-X encoder is such a filter (beside the executable, which also allows to compress with Aud-X, but only separate 6 channel PCM wave files) Last edited by 3dsnar; 10th January 2006 at 08:48.

10th January 2006, 10:26	#26 \| Link
CruNcher Registered User Join Date: Apr 2002 Location: Germany Posts: 4,926	Has this reached the Hydrogenaudio Community yet ? 3dsnar you should really go there you find the real audio experts over there they also can judge the codec and take it into the next ABX test http://www.hydrogenaudio.org/ __________________ all my compares are riddles so please try to decipher them yourselves :) It is about Time Join the Revolution NOW before it is to Late ! http://forum.doom9.org/showthread.php?t=168004

10th January 2006, 07:36	#23 \| Link
guada 2 Registered User Join Date: Feb 2005 Location: Lyon Posts: 718	@3Dsnar That is very interesting. But i noted that it was possible to make (MP3 HQ 192 Khz 48KHZ 5.1) in your guide, whereas you tell in your post that: "New codec! 128 K and less for 5.1" It's true or no? Aud-x 1.0 would it be better than the mp3SX 5.1 from Fruehaufer? Can I use it with a lossless codec? Thank you to clarify. Bye.

10th January 2006, 10:35	#27 \| Link
3dsnar Registered User Join Date: Dec 2005 Location: Proxima Centauri Posts: 315	I will do that. Thank you.

10th January 2006, 19:18	#35 \| Link
Morpheus_xx Registered User Join Date: Feb 2002 Posts: 85	I'd like to thank you for this great codec! It's the first (non-AC3) audio format, that my external DD-receiver recognizes as Dolby Digital! Is this a "feature" of the compression format or more of the decoder? If so, is there a AAC-decoder that also sends "AC3 format"-flag when decoding 5.1?

10th January 2006, 19:32	#36 \| Link
scharfis_brain brainless Join Date: Mar 2003 Location: Germany Posts: 3,653	@Morpheus_xx: it is not a AC3-like format. it reencodes the decoded 5.1 audio stream during playback to AC3 and sends it via SPDIF to your Receiver. @3dsnar: I am not able to append AC3filter to the filterchain, in order to downmik the decoded 5.1 to DPL2, even if I force AC3Filter within MPC. __________________ Don't forget the 'c'! Don't PM me for technical support, please.

11th January 2006, 08:04	#40 \| Link
3dsnar Registered User Join Date: Dec 2005 Location: Proxima Centauri Posts: 315	Please use our front end, if you would like to transcode Aud-X to AC3 or 6 channel wave (for tests). -- Yes, we transcode the Aud-X stream to AC3 in real-time in our DSfilter (so it goes: File -> Aud-X -> 6 ch PCM -> AC3 -> SPDiF) I hope that this feature is useful (it should be especially for inexperienced users). Please check the DSfilter structure in our whitepaper @ www.aud-x.com Last edited by 3dsnar; 11th January 2006 at 11:03.

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