BeSweet bsn.dll replacement to use AAC+v2 encoder

[dimzon]

WARNING!
This thread is obsolete! Use this thread.









Get it here

BIG FAT WARNING:
 this code based on "The Winamp Transcoder" plugin (http://www.srcf.ucam.org/~wdhf2/transcoder/)

1) Rename standart bsn.dll into bsn_std.dll first
2) Place provided bsn.dll into BeSweet directory
3) Place enc_aacplus.dll (from winamp\plugins) into BeSweet directory
4) To use enc_aacplus.dll instead on Nero you must use -aacprofile_he_ct or -aacprofile_he_ct2 switch!
5) enc_aacplus.dll produces raw aac stream, don't forget to set "aac" output file extension

Command line (when using -aacprofile_he_ct or -aacprofile_he_ct2 switch, otherwise use standart switches): 
 -bsn( -cbr <bitrate> -mode <channels> -<profile>)
 	<bitrate>  - integer between 8-128, default is 48
	<channels> - integer between 1-5, default is 4
		1 - Mono (?)
		2 - Stereo
		3 - Stereo Independent
		4 - Parametric (you MUST set aacprofile_he_ct2 and <bitrate> can't exeed 48)
		5 - Dual Channel (?)
	<profile> - must be -aacprofile_he_ct or -aacprofile_he_ct2
		-aacprofile_he_ct - AACPlus v1 Encoder
		-aacprofile_he_ct2 - AACPlus v2 Encoder

Warning! It's first beta version!

[Kurtnoise]

Heya,

1st question : do you know the difference between Stereo and Stereo Independent ? Is it just like Joint-Stereo vs Stereo ?

[pcjco04]

Tried to transcode from .ogg to .aac and it produces a playable AAC file at the good birate.

Good job

[Elias]

Oh man, this is great news! I just want to say that you should keep up the great work! I'd like to try this, but I'm on Linux now, and cannot use BeSweet. Anyway, good luck!

[ggab]

yes, keep up the excellent work in AAC area! u rock man

thanks

[dimzon]

Get it here.

Note! It's just until new version of BeLight is out.
Note! Place it into BeSweet folder first!

[dimzon]

Originally Posted by Doom9 homepage

Perhaps that'll open the door to an faac plugin with MP4 output shortly?

It's very easy to add another Winamp encoding plugin support:

• enc_aac.dll - RAW AAC (by Dolby?)
• enc_mp4.dll - AAC in MP4 container (By Dolby?)
• enc_wma.dll - WMA Encoder
• Other

Does anybody really need this?

[Kurtnoise]

I vote for wma and flac...

[dimzon]

Originally Posted by Kurtnoise13

I vote for wma and flac...

Seems like enc_aac.dll (AAC-LC) is not FAAC-based (i found such strings in binary: "-I ..\DolbyCE0.1\code\iaopt\Headers").
Maybe it's better to make command-line tool for AAC-LC and compare enc_aac.dll with FAAC, Nero, iTunes @ 128 kbps ???

[dimzon]

Originally Posted by dimzon

Seems like enc_aac.dll (AAC-LC) is not FAAC-based (i found such strings in binary: "-I ..\DolbyCE0.1\code\iaopt\Headers").
Maybe it's better to make command-line tool for AAC-LC and compare enc_aac.dll with FAAC, Nero, iTunes @ 128 kbps ???

Get it here
Note! Seems like encoder produce samplerate downsampling to 32kHz for bitrate below 128 kbps

[dimzon]

I have develop encoding plugin framework for easyest encoding plugin development. Look @ it here!

[Peter1234]

When I use the following command line I get mpeg2 AAC instead of mpeg4 AAC. What do I have to change to get the command line to produce mpeg4 AAC?

"BeSweet/BeSweet.exe" -core( -input "input.ac3" -output "output.aac" -azid( -s stereo -n1 ) -bsn( -cbr 48 -mode 3 -aacprofile_he_ct2 )

[dimzon]

Originally Posted by Peter1234

When I use the following command line I get mpeg2 AAC instead of mpeg4 AAC. What do I have to change to get the command line to produce mpeg4 AAC?

Nic's AAC patch

[Peter1234]

Thanks.

[DeathTheSheep]

I've noticed that Winamp defaults to the aac+ version 1 encoder for 64kbps encodings. Why not default to version 2?

I then read on AAC+'s website that AAC+ version 2 was merely the manifestation of the super-new "Paremetric 2-channel" reproduction, a sort of synthesized stereo.

So if Version 2 was intended only to introduce PS, perhaps AAC+ version 1 can better encode standard SBR 48kbps+ content. However, I've never seen it in any recent evaluations. Why is that?

[pcjco04]

When I mux the AAC file that I obtained from this plugin into a .MP4 file with mp4box (0.4.1DEV) , I have this line when it starts to import the audio :

AAC import SBR (implicit) - sample rate 24000 - MPEG-4 audio - 2 channels

I used -bsn( -cbr 64 -mode 2 -aacprofile_he_ct2 ) with a 48000Hz input.
The output is also recognized at 48KHz from the AAC file or with muxed MP4.
Is it a bug from MP4Box ?

[Raziel6969]

Hello,

With my little experience i can tell that you can encode untill 48kbps
with PS, this sounds better than anything at that bitrate, i believe
that at higher bitrate PS doesn't help. A 64kbps (v1) sounds better
than 48kbps with PS (v2) of the same file. With the v2 i got less
stereo separation... All this appears to me.

I like the dimzon frontend to encode.

With at my test, i have 1 question, why the file size of the final .aac
is the same when i encode the original 44kHz version of a wav file,
while if that file is upsampled to 48kHz?

Bye

[dimzon]

Originally Posted by Raziel6969

With at my test, i have 1 question, why the file size of the final .aac
is the same when i encode the original 44kHz version of a wav file,
while if that file is upsampled to 48kHz?

Bcz both files has same playlength and bitrate

[Rockaria]

Originally Posted by Kurtnoise13

I vote for wma and flac...

Winamp5.1 supports ds-show input enabling virtually any input sources.
The stand alone encoder based on the winamp transcoder looks promising if it can take the input (multi) channels from the in_dshow.dll and put to any supported encoders(including the sout), before integrating to the besweet.

[AcIDo-555]

..Crash on my system > Windows 98SE