Posted: 1/9/2007 6:06 AM
Post subject: AVI Sound desync problem after recording a game.
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ContraMan6000
Joined: 1/9/2007
Posts: 5
Recently I have been having problems with my sound syncing with the videos that I make in VBA. I go to record AVI, And when I put it in windows movie maker and play it after about 10 seconds, the sound starts to desync from the video and it hasn't done this untill recently, and it also does this with snes9x now which didnt happen untill recently either. Can someone please help me out with this? Thank you.
Posted: 1/9/2007 6:23 AM
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laughing_gas
Former player
Joined: 10/1/2006
Posts: 1102
Location: boot_camp
I'm guessing that you need to compress the avi (both video and audio) since emulators output huge avi files that are hard for computers to read.
Borg Collective wrote:
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Posted: 1/9/2007 9:46 AM
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ContraMan6000
Joined: 1/9/2007
Posts: 5
Thanks, Im not really too keen on how to do that though, any ideas on what I should use or how I should do it? Thanks again.
Posted: 1/9/2007 3:07 PM
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laughing_gas
Former player
Joined: 10/1/2006
Posts: 1102
Location: boot_camp
After you select Tools -> Record -> Start AVI recording and then name the file, it should bring up a list of video compression choices. The only one that seems to work for me is Xvid, so download that and install it. After you install it, choose Xvid in the video compression menu and then record the movie. You can choose to compress the audio later; I usually use the standard MPEG Layer-3 encoder that comes with most Windows computers. EDIT: for audio compression you need to use VirtualDub, open the video file in VirtualDub, go to Video -> Compression and select the same Xvid codec (so it doesn't become uncompressed) then click Audio -> Full processing mode, then click Audio -> Compression and select MPEG Layer-3, with the bitrate being up to your choice. Then click File -> Save as AVI and name the video, and the audio will be compressed.
Borg Collective wrote:
Negotiation is irrelevant. Self-determination is irrelevant. You will be assimilated.
Posted: 1/10/2007 3:55 AM
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ContraMan6000
Joined: 1/9/2007
Posts: 5
Hmmm...Thanks for the help, but for some reason it still seems to be out of sync. Was I suppose to set the MPEG Layer to a certain bit rate or something? Thanks in advance.
Posted: 1/10/2007 4:32 AM
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laughing_gas
Former player
Joined: 10/1/2006
Posts: 1102
Location: boot_camp
Hmmm ... I've never had this synching problem, but it might depend on how good your system is. A slower computer will do a poorer job of capturing video, resulting in dropped frames and thus a desynch. Click on Options -> Sound and it should tell you what rate the audio is being played back (my default is 44 Khz). I don't know if this will help, but during audio compression try setting the bitrate the same as the VBA audio rate. If that doesn't work, the only thing I can think of is to turn off sound and record only video, then record only sound using Tools -> Record -> Start sound recording and then splice the two files together using VirtualDub.
Borg Collective wrote:
Negotiation is irrelevant. Self-determination is irrelevant. You will be assimilated.
Posted: 1/10/2007 5:51 AM
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ContraMan6000
Joined: 1/9/2007
Posts: 5
hmmm, Could you tell me what you have checked and what not under options for VBA? That might help some I hope, Man this is really odd how it does this all of a sudden. I have a good computer, more than capable, it synced for the longest time then all of a sudden doesnt anymore. Strange, maybe your checked options under VBA will help some.
Posted: 1/10/2007 7:24 AM
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ContraMan6000
Joined: 1/9/2007
Posts: 5
I just noticed something, Its the sound that lags behind the video. Like say after I suck up an enemy on kirby in the video, the sound follows about 3 to 4 seconds after.
Posted: 1/10/2007 4:15 PM
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laughing_gas
Former player
Joined: 10/1/2006
Posts: 1102
Location: boot_camp
My VBA settings are: Speed -> Accurate Emulation Speed Video -> x1 Filter -> Normal Sound -> On Sound -> 44 Khz Emulator -> Synchronize emulation speed Emulator -> Automatic IPS patching Emulator -> Lag Reduction (GBA) Gameboy -> Game Boy (GB) Gameboy -> Real Colors
Borg Collective wrote:
Negotiation is irrelevant. Self-determination is irrelevant. You will be assimilated.
Posted: 3/13/2007 2:06 AM
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nfq
Player (94)
Joined: 5/10/2005
Posts: 1204
I've got the same problem... after capturing about 20 minutes it starts to desync, and desyncs more and more. I got this problem in mupen64 too.
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