Audio Problems (Converting AVI to MPG with TMPGenc)

[jamesnajera]

Hardware and Software

Canon ZR70MC
DVIO type 1 Capture (for capturing to AVI)
Windows Movie Maker (Also can capture AVI)
TMPGenc Plus with tooLame, SSRC

Ok -

The audio comes out of the camera to the computer at 1024kbps 2Channels 32Khz 16bit. I then try to use TMPGenc to convert the AVI file to a mpeg at DVD quality (Project Wizard DVDNTSC template). When the conversion is done the video looks fine but the sound very deep and full of bass. If i capture with Windows movie maker straight to WMV it sounds fine. I do not want to convert WMV to DVDMPEG. Does anyone know how to correct my problem?

Thanks

James

[Tommyknocker]

Try to use a different audio encoder. TooLame and SSRC are two that come to mind. After you download and extract them, go to TMPGEnc, select Options-->Environmental settings-->Audio Engine. Using the Online Help Manual, you can use external audio encoders to get better sound in your videos.

[jamesnajera]

AS i stated above, I am using tooLame and SSRC.

James

[Tommyknocker]

You are right. Are you using them both together, or have you experimented with different procedures?

[jamesnajera]

I have tried just toLame, that did not work I still got the same deep/Bass voice, that kind sounds like satan is talking. Then I added the SRCC and tried a conversion with that and still got the bad audio.

The thing that bothers me is that windows movie maker can capture it fine if i go straight to wmv. But I dont want to go from crap to DVD. So it is like I am missing some type of codec.

[secretagent]

i think the 32khz is your problem. convert the audio to 44100 if you are making vcd or 48000 if you are making dvd, then encode

[jamesnajera]

is there a free program that allows me to rip the wav out of the AVI. I used TMPGenc output option and still have the same audio problem.

[jamesnajera]

is there a free program that allows me to rip the wav out of the AVI. I used TMPGenc output option and still have the same audio problem.

is there a free program that allows me to rip the wav out of the AVI. I used TMPGenc output option and still have the same audio problem.

I guess i will be more specific. I have tried to crop out the wav file with tmpgenc File-output-wav and i choose pcm 16bit 32khz, but still get audio problems. Any ideas, and why does wmv convert fine?

[Don2050]

Virtualdub, it is freeware and it will let you demultiplex the audio stream.

http://www.doom9.org/index.html?/guides.htm

then go to >> Virtualdub Procedures

I agree with secret agent...I think the 32khz may be causing the problem...though it is strange windows movie maker handles it fine. If thier is a way to capture at 44.1 or 48khz I would try that to avoid the conversion.

[ZippyP.]

It's pretty simple to convert your audio with Virtualdub:

Load your file, Audio>full processing mode, Audio>compression>no compression, Audio>conversion>44.1 KHz, File>save wav.

[jamesnajera]

Well I guess this is what I need to do. Tell me if you guys this is a good procedure.

Use DVIO to capture the AVI in Type I format from my Canon ZR70MC camera (I capture it in Type I, because in Type II I get no Audio). Then I use DVconverter to convert the AVI Type I to Type II. Now the audio works (why, I dont know?). Then I make sure I use TMPGenc Plus with tooLAME and SSRC to convert the AVI to MPEG at DVD quality. Is that a good process?

James

[Don2050]

=/ I thought that was basically what you did from your first post ? what part is different ? the dv type coversion ?

[jamesnajera]

Yes, the type I conversion to type II.

Do you know why there are two types. I will see if i can find that answer to this question on this site.


Thanks

James

[Don2050]

http://thetechnozone.com/videobuyersguide/Codecs/Type1-Type2-DV.html


a summary:

Microsoft states:

DV cameras produce interleaved audio-video; each frame of video also contains the audio information. If you save DV data to an AVI file, you have a choice. You can:

Include the native interleaved data as a single stream in the AVI file, with type ivas. This is known as a type-1 file.

Split the DV data into separate audio and video streams, with types auds and vids. This is known as a type-2 file.

[hiptune]

I am having sort of the same problems. I just built a system (P4, w/ 2 HDs 80/120, Canopus advc - 100, Pinacle Studio 8, etc.

Everything went exactly as planned, the captures were clean and had no dropped frames, the compression and burning to VCD looks very acceptable all things considered. But the audio is a bit crusty. It does not sound bassy or dull, or like satan, it has just slight break-up on the high end edges. And I am sure I can do better in the sound dept. Or could the levels need lowered?

My question is: when you use something like SRCC or tooLame (along with tmgnce) to do the audio portion of the VCD incoding, is there a second session of conversion, or can it all be done at the same time?

I did not see this method in any of the guides, and it looks like it really is the way to go.

btw, with my new system, I am converting DV to VCD in about 55 minutes per hour. That is not too bad really!!!

Jeff

[Don2050]

the audio conversion can be done at the same time. the high freqency stuff you get when you convert I believe is a result of a bad sampling rate converter... I had that happen to me using an internal converter in some audio editor(I forgot which) and when I used ssrc it cleared it up.


if you would rather do the audio seperatly you can use ssrc in BeSweet...but tmpenc will resample with ssrc and encode to mp2 with toolame at the same time you do the video....