Need help with Audio stream format, VD/M won't compress

[talefing]

Hi, I'm trying to combine a WAV file that was formerly part of a movie, back to the movie. I took out the WAV file using VirtualDubMod 1.5.10.3

This is its properties:

Stream format: AC3 3/2.1 (5.1) 48000Hz
Bitstream type: byte stream
Frame size: 1792
Samples: 1536
Bitrate: 448kbps
SPDIF stream type: 0x1
Frame interval: 1792
Actual bitrate: 448kbps
AC3
speakers: 3/2.1 (5.1)
sample rate: 48000Hz
bitrate: 448kbps
stream: 8 bit
frame size: 1792 bytes
nsamples: 1536
bsid: 8
clev: -3.0dB (0.7071)
slev: -3.0dB (0.7071)
dialnorm: -29dB
bandwidth: 14kHz/20kHz

Now I am just trying to put it back in the movie but when I go to audio compression to choose 448kbps 48000Hz 3/2 channels 55KB/s, from the AC-3 ACM Codec, it says: Error initializing audio stream compression: The requested conversion is not possible. I tried other channels but none work except for 2/0 Stereo 48000Hz. I then tried to do the same thing using VirtualDub 1.9.8, and it says: Error initializing audio stream compression: The audio codec cannot compress the source audio to the desired format. Check that the sampling rate and number of channels in the source is compatible with the selected compressed audio format. I also tried taking out the WAV file in VD (No Compression [PCM]) and it comes out as 2/0 Stereo.

What am I doing wrong? I tried it with 2/0 Stereo 48000Hz but the volume in the movie is low compared to the original. Are there other ways to choose the desired original audio compression? Thanks in advance.

[poisondeathray]

What did you do to the demuxed 6-ch original audio? did you edit it in another audio program? It seems like you downmixed to stereo wave, not 6-ch wave. What does mediainfo say about that file (the one you're trying to put back in)?

[talefing]

What did you do to the demuxed 6-ch original audio? did you edit it in another audio program? It seems like you downmixed to stereo wave, not 6-ch wave. What does mediainfo say about that file (the one you're trying to put back in)?

Do you mean the .ac3 file? If so, I didn't do anything with it, it's in a folder. What MediaInfo says about the WAV file is:

General
Complete name : C:\Users\Leviathan\Desktop\Castaway On The M00n.wav
Format : Wave
File size : 373 MiB
Duration : 1h 56mn
Overall bit rate : 448 Kbps

Audio
ID : 0
Format : AC-3
Format/Info : Audio Coding 3
Codec ID : 2000
Duration : 1h 56mn
Bit rate mode : Constant
Bit rate : 448 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Surround: L R, LFE
Sampling rate : 48.0 KHz
Stream size : 373 MiB (100%)

[poisondeathray]

you're just trying to add the ac3 audio back? use avimux-gui

[guns1inger]

In VDM you want to add the audio track, then under Audio set Direct Stream Copy. You are not compressing the audio, just muxing it in. At worst you may have to install AC3 ACM Decoder.

But I also agree that AVImux-GUI is the better option.

[talefing]

Let me mention a few things. This movie was originally 2 parts (CD1 + CD2). So I appended them together. It plays fine on my computer. But on another computer and on the TV, there's this screeching sound/noise that occurs when originally CD1 ends (55:45), so at 55:45, that noise occurs and then from 55:46 and on, the sound seems to disappear or more like, becomes very low. So I tried to fix it on my computer, since I don't hear that sound, in VD 1.9.8 by saving the audio as WAV and combine it back together with the video like I originally posted, but it won't let me choose compressions other than 2/0 Stereo and save. So then, I tried VDM 1.5.10.3, by extracting the WAV (the one I wrote the properties of) but now that's when I just realized that in that WAV file and the demuxed .ac3 file from VDM 1.5.10.3, there's the screeching sound in the middle. I found out by uninstalling AC3Filter v1.63b. But I don't hear the screeching sound in the WAV from VD. Here's the MediaInfo on that one:

General
Complete name : C:\Users\Leviathan\Desktop\Castaway On The Moon.wav
Format : Wave
File size : 1.25 GiB
Duration : 1h 56mn
Overall bit rate : 1 536 Kbps

Audio
ID : 0
Format : PCM
Codec ID : 1
Codec ID/Hint : Microsoft
Duration : 1h 56mn
Bit rate : 1 536 Kbps
Channel(s) : 2 channels
Sampling rate : 48.0 KHz
Resolution : 16 bits
Stream size : 1.25 GiB (100%)

So now I am thinking of using this WAV file instead. But is there some way to make it like how the original audio track was? 6 channels, 448kbps, etc. VD/M won't allow me to make it other than 2/0 Stereo.

[guns1inger]

Nope. You have thrown away the 6 channels and only have a mixed down stereo version to play with.

I would try joining the original two file with AVI Demux instead of vdm

[talefing]

I (sort of) found a solution for my problem and I just thought I should update this thread incase anyone comes across a similar problem. Like I mentioned before, the movie was consisted of two parts (CD1 + CD2), I noticed that everytime I loaded each part in VirtualDub 1.9.8, I would get the error message: AVI: Truncated or invalid compressed audio format detected (18 bytes, should be 36). Attempting to fix. So if you attempt to append the 2 parts with whatever program, you'll find problems with the result video (screeching noise/sound when CD1 part ends if you use VD/M, {only if you don't have the latest AC3Filter, but it'll be problematic when you try to burn the vid or whatever to watch the video somewhere else like on your TV} and with AviDemux, you'll find that it skips 300-400 milliseconds when CD1 part ends).

So what worked for me was AVI-Mux GUI 1.17.8.3. I'm not sure why I did it and still don't know how AVI-Mux GUI affected the 2 CD parts but not only it removed the Truncated audio format message but also the screeching noise/sound disappeared after I appended them. I just basically downloaded AVI-Mux GUI 1.17.8.3, didn't change any settings, dragged Part 1 and just clicked Start and then separately did so for Part 2 as well, and then I loaded the new Part 1 on VirtualDub 1.9.8 (error message disappeared) and I did the steps to append the 2 .avi files and the video came out perfectly fine lol I tried using AviDemux to append the 2 new parts but you hear a funny sound when CD1 part ends but it's tiny, I was able to detect it with Audacity.