BeSweet - choppy mp3 output

[Amerzone]

I tried BeSweet 0.81 with the DanniDin GUI to encode few video clips in batch mode. The batch process works fine, yet the output mp3's sound choppy.

Here it is a sample of the command line I'm using to encode only a single vob (quite straightforward, I guess).

"C:\Audio\BeSweet\BeSweet.exe" -core( -input "j:\music_videos\clip_1.vob"
-output "j:\music_videos\clip_1.mp3" -substream 0x80 -logfilea "C:\AUDIO\DDGUI\BeSweet.log" )
-azid( -z1 -b1 -g max ) -lame( -m j -q 2 -b 160 )

The mp3 resulting from GraphEdit and Lame 3.89 engine sounds ok. Am I missing something?

[MaTTeR]

I've got the same problem. I encoded the DD trailers and the sound is choppy, almost like a pop every few seconds. I just used the default settings.

Anyone else having this issue?

[DSPguru]

i strongly believe the problem is with the new fft-optimiaztions of lame_enc.dll v3.90 (alpha release), that comes with the BeSweet package.
please download lame_enc.dll v3.89, and see if the problem stays.
if it solved the problem, please report of what computer do you have, so LAME developers would know about that problem.

[Amerzone]

I checked engine 3.89, DLL v1.22 (extracted the lame_enc.dll into the BeSweet folder). I was hoping this would be the problem, alas no, the resulting mp3 is still choppy Pity, this is a fantastic tool, but useless to me for the time being. My puter:

Athlon 1.33G
mobo Kinetiz VIA KT133A chipset
RAM 512M
MSI GeForce2 MX-400
HD 30G + 40G
SB Live! Player 1024 (not 5.1)
WinME with IE6.0

[DSPguru]

check if MP2 also stutters..
that way, we'd know for sure if it's lame_enc.dll or something else...

[Amerzone]

I tried the vob > mp2 encoding from the command line and I got the "Unable to get LAME interfaces" error message. I then noticed there is actually a thread in the forum dealing with this prob, so I understand I need to have the mp2enc.dll in the BeSweet folder. The question is, where can I find this dll? (not included in the BeSweet pack). Forgive me for my ignorance...

[Warwick]

I think the problem with choppy mp3 output comes when you try and perform a direct encode from a vob to mp3 (or mp2). I have tried many vob-mp3 encodes and always get the same result, namely choppy output.

However, when I extract the ac3 from the vob first, through dvd2avi, then use BeSweet to convert ac3 to mp3 or mp2, result...no more choppy output!!

I wonder DSPGuru, can you fix this? Is this a problem only a few of us are suffering from?

The other problem I get is that whenever I try and perform an encode when the BeSweet button is highlighted I just get the dos-window flashing up for a second and then nothing... I can perform all the functions when the azid or lame buttons are highlighted, but not the BeSweet button. Any ideas? Im running win2000 with Athlon XP1700.

Thanks for the great program though, these minor issues aside, its a joy to use

Cheers,

Warwick

[MaTTeR]

Originally posted by Warwick
I think the problem with choppy mp3 output comes when you try and perform a direct encode from a vob to mp3 (or mp2). I have tried many vob-mp3 encodes and always get the same result, namely choppy output.

However, when I extract the ac3 from the vob first, through dvd2avi, then use BeSweet to convert ac3 to mp3 or mp2, result...no more choppy output!!

I thought so at first also. However, the last 3 tests I ran on RAW AC3 files from DVD2AVI was still choppy.

[DSPguru]

@Amerzone
you can find a link to BeSweet package on my signature.

@Warwick

I wonder DSPGuru, can you fix this? Is this a problem only a few of us are suffering from?

only few reported of this. i don't know, mayB there is a bug in bbdmux...
please try mp2-output, and report the results..

as for the GUI,
mayB DanniDin (GUI Author) knows what the problem is...

@Matter
try not setting values for Azid's Gain & WaveBooster.

[Amerzone]

Originally posted by DSPguru
@Amerzone
you can find a link to BeSweet package on my signature.

I'm totally confused now The url in your signature points to the BeSweet package @ Doom9 software archive. Are you sure that the mp2enc.dll is included in it? I can only find the azid, bbdmux, lame_enc and ssrc DLL's in there...

[DSPguru]

it was suppose to be in the package. anyway :
Get it here !

[Amerzone]

It seems we are both online right now... By the time I was grabbing the missing dll from the other thread (BeSweet + 2Lame), I noticed your reply to my post in this thread. Thanx, I'll try the vob > mp2 encoding and ac3 > mp3 encoding (with both Lame engines) tonight, when I return home, and report back here.

[Amerzone]

OK, I tried once again the vob > mp3 encoding (no fancy settings, CBR 160) and the mp3's produced whatever Lame engine I used (3.89 beta, 3.90 included in BeSweet 0.81 pack, the fresh 3.90 "stable") are all choppy. I also tried vob > mp2 (@192) and the audio still shutters. So, where is the bug? (probably in bbdmux?!)

[DSPguru]

sounds bad...
probably bbdmux

you could try to create a stereo wave with v0.9beta to make sure the encoder doesn't got anything to do with it...

[Amerzone]

Well, well... Some more feedback. I got the BeSweet v0.9 beta and tried once again the vob > mp3 encoding. The older v0.9 pack included the Lame v3.90 engine, v1.26 dated 17 Dec 2001. Funny thing: the output mp3 is totally silent If I open it in CoolEdit 2000 (fitted with the mp3 plugin), there is no waveform... The BeSweet log file says the compression finished successfully... Anyway, with the latest Lame dll dated 22 Dec 2001, I get the mp3, yet it's still choppy...

I also tried again the vob > mp2 encoding with v0.9 beta. The output still shutters

You proposed to encode only to wav. I used this command line:

"C:\Audio\BeSweet\BeSweet.exe" -core( -input "j:\music_videos\clip_7.vob"
-output "j:\music_videos\clip_7.wav" -substream 0x80 -azid( -z1 -b1 -g max )

The wav I get is invalid. Am I doing something wrong here?

[DSPguru]

Originally posted by Amerzone
Funny thing: the output mp3 is totally silent

download the package again, as i uploaded a fixed version for this.
or simply use -boost( /b=1 /l=1 )

for stereo-wave output, the command line should have been :

"C:\Audio\BeSweet\BeSweet.exe" -core( -input "j:\music_videos\clip_7.vob"
-output "j:\music_videos\clip_7.wav" -substream 0x80 -2ch ) -azid( -z1 -b1 -g max )

does anyone saw this letter ?

[Amerzone]

Ok, I got the fixed version now. With the -2ch switch, the wav file I get is fine, plays and sounds ok. Of course, the problems with mp2/mp3 are still there...

[DSPguru]

does the problem is somewhat like the one reported in this letter ?

[Amerzone]

The fellow is talking about "something like barking during playing". I don't think this is my case. I uploaded a short sample for you, so you may have an idea of what I mean when I say choppy. You could download it from here

[DSPguru]

10x for the attachment. at least now, i know what you mean.
was the input file "vob" ?