Metallic sound after TMPGenc conversion

[King-Of-DK]

Every time i convert my audio/video files with TMPGenc i get metallic sound,and it really pisses me off.My files before conversion sounds great,but every time i convert or multiplexes it gets all metallic,does anybody know why?? I have tried to use external sample rate converters,and toolame,and i get some good sounding files,but every time i convert via TMPGenc it gets metallic,can anybody help me with this? Is there any other software that can multiplex for a better result maybe? If so what are they called.

[BJ_M]

use the external audio sample rate convertors in tmpgenc .. its not the multiplex .. its the sample rate conversion ussually .

[King-Of-DK]

The problem only occurs AFTER conversion with TMPGenc,if i convert the wav from 48000 to 44100 and from 192 to 224 with the sample rate converter and toolame i get a perfect sounding wav file,and i use that as audio source when i convert the avi,and the result is always the same,metallic sound,it is definitly TMPGenc,that does a shitty job of handling the sound.I always extract the audio with virtualdub,and then convert it to the correct frequency and bitrate,and i get perfect sound,it is only when the sound i processed through TMPGenc that it goes bad,so i can see no other way of doing it to get the sound right.Should i try not to extract the audio first,and let the external tools handle the conversion?

[kayfam]

King-Of-DK,
I think your missing the point. What everyone is trying to tell you is to use an external encoder in conjunction with TMPGEnc such as toolame or ssrc. You can enable the plug-in's inside TMPGEnc in Options/Enviromental settings/External tools and browse to the folders where the .exe files are located, then click ok. TMPGEnc's internal routines aren't up to the task when it comes to resampling audio and will cause that metellic sound if you use the internal encoder.

[King-Of-DK]

I am not missing any point,as i have stated i DO use both SSRC and Toolame as external tools,and still get the metallic sound.

[BJ_M]

if you were using them as external tools in TMPGEnc .. TMPGEnc doesnt even touch your audio .. it completly pass it off to the external tool ..

there is no diff

[kayfam]

King-Of-DK,
Ok that was a quick response! Let me ask you this....are you encoding the audio separately with Toolame and SSRC then running it thru TMPGEnc or are you encoding using the external plugin's and are they enabled inside TMPGEnc?

[King-Of-DK]

I have tried both ways,and right now i have them enabled,but it doesn´t make a difference..

[Martok]

Try BeSweet and leave the bitrate the same.

[larsli]

Just a thought. It could be the mp2 audio codec (installed with windows media player I think?) that gives you the metallic sound, and not something wrong with the actual sound.

[King-Of-DK]

OK,could i uninstall the mp2 codec? Or at least tell it to use another codec for the playback?

[BJ_M]

you said it sounded good when you played audio that was done outside tmpgenc , so how could it be the codec you are using . since in both cases it would be the same one ..

[King-Of-DK]

Yep,that is true.It sounds very good when its only a wav file,and the original avi sounds good too.It is only when it has passed throug TMPGenc,that the sound turns metallic

[Lowlander2]

King-Of-DK,

if you already use external tools to convert samling frequency and data rate of your audio, you may want to go one step further and encode the mp2 file externally instead of feeding a wav into TMPGenc. BeSweet does that perfecly well.

Let TMPGenc encode the video only and multiplex later, preferably in BBmpeg.

CU,
Lowlander

[King-Of-DK]

And how exactly is that done??

[Lowlander2]

I use a commandline, or rather a batch file like

"D:\Programs\BeSweet\BeSweet.exe" -core( -input "E:\Data\DVD\input.wav" -output "E:\Data\DVD\output.mp2") -ota( -g max ) -ssrc( --rate 44100 ) -2lame( -e -b 192 -m s )

Which picks up the (in my case 32kHz) 'input.wav' saved by VirtualDub, gets it normalized, resamples to 44,1kHz, encodes and saves it as a 192kbit/s MP2 'output.mp2'. All in one go. It's easy to see where to but different paths, bit rates and sampling frequencies for the output file.

(I got those audio tools installed by the DVD2SVCD pack, so I do not know exactly which components apart from BeSweet have to be downloaded seperately, but everything is free and should be pretty easy to find in the web.)

When the conversion to mp2 is finished, check the sound. There should be no trace of the C3PO-Effect TMPGenc can create with its internal routines.

Open BBmepg, press 'start conversion', then 'settings', enter your desired mpg output file, choose your video stream coded by TMPGenc and the mp2 audio stream just created by BeSweet. Press start and watch for possible errors.

Alternatively use TMPGenc's multiplex tool.


Good luck,
Lowlander/2