Hello everybody, Not long ago I bought a DivX-compatible DVD player. I use Nero to burn the videos as data DVDs; the result is, generally speaking, good; however, many times the resulting DivX video is almost inaudible. I’ve searched the net and found that the problem is very common; there are many posts about this problem, most of them very old. I’ve tried the solution everybody suggests (VirtualDub) and it doesn’t work: I keep getting “error” messages. Is there any easier, way to boost the audio on a DivX file? Or even before I turn the video into a DivX file, can I boost the audio of an AVI file? Another way that doesn’t involve VirtualDub? Another software, maybe newer, something simpler? As you can probably see, I am by no means a computer expert, I started to burn videos last week… I have a Toshiba laptop, Windows 7, a (legal) copy of Nero; and please remember I burn the videos on a DVD so that I can watch them on a DVD player. If you need to know anything else about what I use please let me know. Thanks a lot; I would appreciate any suggestion. Oudis.
Increasing the volume using VirtualDub is relatively easy - most other methods that work involve demuxing the video and audio and remuxing them together. Can you run down the steps you use with VirtualDub and post the error.
Hello Attar, And thanks for replying. Since I posted my question I’ve kept on working. The error I used to get was “Error 100”; it happened almost every time I tried to boost the audio of an .avi file. Then I started to combine subtitles and video in a .divx file through AVIAddSubs, which got rid of the problem, and then opened the resulting file with VirtualDub; but I get other errors. This is what I’ve been doing so far: 1- I select the .divx video whose audio I want to boost. 2- I open it with VirtualDub. Here I usually get the first warning: “AVI: Stream 2 has an invalid sample rate. Subtituting 15 samples/sec as a placeholder.” Usually (90% of the time) I also get a second warning: “AVI: Variable bitrate (VBR) audio detected. VBR audio in AVI is non-standard and you may encounter sync errors up to 39479ms when attempting to extract WAV files or playing in some players. If this is a problem, use Full Processing mode is recommended to decompress or recompress the audio. (This warning can be disabled in Options, Preferences, AVI bitrate: 111.3+-13.8 kbps)” The numbers change from video to video but the message is usually there. 3- I click OK and go to Video and select Direct Stream Copy; I go to Audio and select Full Processing Mode. 4- Then I go to Compression, I choose DivX Audio, I click in “Show all formats” and select one of the four choices I have, usually the last one (the tutorial I’m following doesn’t say which compression option to choose): 32 kbps, 22 kHz, stereo for DivX, 4KB/s 20 kbps, 22 kHz, stereo for DivX, 3KB/s 64 kbps, 32 kHz, stereo for DivX, 8KB/s 64 kbps, 44 kHz, stereo for DivX, 8KB/s 5- The I go to Audio and select Volume, click on “Adjust volume of audio channels”, and increase it. 6- Then I save it as AVI. When I open the files, I sometimes find the audio is saturated and have to do the whole process again. I can do it easily, so that’s not the problem; the problem is that audio and video are not synchronized anymore, despite the fact that I’ve used “full processing mode”. Thanks for your patience, and sorry for the long explanation. Any ideas? Any way to avoid this problem? Can I change the bitrate of the file at the beginning, for instance? Oudis
Can you download MediaInfo and drag a file onto it and post the image - like this. Or list the codec information. hosting images
Hello again Attar, I’ve downloaded MediaInfo, and opened an AVI file with it –the same file of the previous example; this is the information it gave me (I selected this option since it’s easier to post, let me know if it’s OK): ---------------------------------------------- General Complete name : C:\Users\XXX\Desktop\XXX.avi Format : AVI Format/Info : Audio Video Interleave File size : 703 MiB Duration : 1h 24mn Overall bit rate : 1 170 Kbps Writing application : VirtualDubMod 1.5.4.1 (build 2178/release) Writing library : VirtualDubMod build 2178/release Video ID : 0 Format : MPEG-4 Visual Format profile : Advanced Simple@L5 Format settings, BVOP : 1 Format settings, QPel : No Format settings, GMC : No warppoints Format settings, Matrix : Custom Codec ID : XVID Codec ID/Hint : XviD Duration : 1h 24mn Bit rate : 1 046 Kbps Width : 720 pixels Height : 304 pixels Display aspect ratio : 2.35:1 Frame rate : 25.000 fps Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Compression mode : Lossy Bits/(Pixel*Frame) : 0.191 Stream size : 629 MiB (89%) Writing library : XviD 1.2.1 (UTC 2008-12-04) Audio ID : 1 Format : MPEG Audio Format version : Version 1 Format profile : Layer 3 Mode : Joint stereo Codec ID : 55 Codec ID/Hint : MP3 Duration : 1h 24mn Bit rate mode : Variable Bit rate : 111 Kbps Nominal bit rate : 128 Kbps Channel(s) : 2 channels Sampling rate : 48.0 KHz Compression mode : Lossy Stream size : 66.9 MiB (10%) Alignment : Aligned on interleaves Interleave, duration : 24 ms (0.60 video frame) Interleave, preload duration : 419 ms Writing library : LAME3.98r Encoding settings : -m j -V 4 -q 2 -lowpass 17 --abr 128 Language : English ----------------------------------------------- I opened the file with VirtualDub (not VirtualDubMod) again just in case, and got the same message: “AVI: Variable bitrate (VBR) audio detected. VBR audio in AVI is non-standard and you may encounter sync errors up to 39479ms when attempting to extract WAV files… (etc.)” Is this what you asked me to do? Is it useful? And thanks again, Oudis
I've seen this when the file had a subtitle added to it with AviAddXsubs - VirtualDub doesn't recognize it. I don't know if this applies in your case - but if you have been adding subtitles with AviAddXSubs, it should be done after using VirtualDub . This isn't an error - more of a heads up. I find that AVI files using VBR audio, when played on my standalone players, give out of sync and video breakup. Change it to CBR audio using the Lame mp3 codec. If it's installed in your PC, it should be selectable from the VirtualDub Audio menu. When creating AVI files I make a point of setting the audio to CBR. http://users.tpg.com.au/mtam/install_lame.htm Save the video as Direct Stream Copy as usual. You can check the volume level, by pressing the 'Output' playback button on the lower left of the pane. image upload
