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Old 10th January 2006, 04:30   #21  |  Link
Sirber
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Does someone got the DS filter work?
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Old 10th January 2006, 07:26   #22  |  Link
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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.
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Old 10th January 2006, 07:36   #23  |  Link
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@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.
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Old 10th January 2006, 07:49   #24  |  Link
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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.
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Old 10th January 2006, 08:45   #25  |  Link
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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.
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Old 10th January 2006, 10:26   #26  |  Link
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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/
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Old 10th January 2006, 10:35   #27  |  Link
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I will do that. Thank you.
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Old 10th January 2006, 11:59   #28  |  Link
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Quote:
Originally Posted by Sirber
Wouldn't your codec be better using HE-AAC instead of MP3?
Ogg Vorbis !!!
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Old 10th January 2006, 13:00   #29  |  Link
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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
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Old 10th January 2006, 13:18   #30  |  Link
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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!
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Old 10th January 2006, 13:30   #31  |  Link
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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
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Old 10th January 2006, 13:52   #32  |  Link
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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
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Old 10th January 2006, 14:01   #33  |  Link
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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.
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Old 10th January 2006, 14:03   #34  |  Link
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yes, but this doesnt mean it was standardised for aac, like parametric stereo (eg he-aac v3 or so )
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Old 10th January 2006, 19:18   #35  |  Link
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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?
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Old 10th January 2006, 19:32   #36  |  Link
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@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.
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Old 10th January 2006, 19:59   #37  |  Link
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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
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Old 10th January 2006, 20:12   #38  |  Link
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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"?
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Old 10th January 2006, 21:17   #39  |  Link
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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
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Last edited by SeeMoreDigital; 10th January 2006 at 21:19.
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Old 11th January 2006, 08:04   #40  |  Link
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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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