Posted: 5/21/2007 12:54 AM
Post subject: Mupen AVI sound is crackly
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AQwertyZ
Joined: 12/3/2006
Posts: 131
Location: Seattle
When I try to record an AVI in Mupen, there is an annoying clicking sound. I haven't changed any of the default settings. Here is a sample recording: http://aqwertyz.googlepages.com/Mario.mp3 I know the problem isn't just with my computer because I also hear it in this AVI from the Mario Kart 64 topic: http://people.virginia.edu/~avw6s/MarioKart/FlowerCup_Testv5-CM.avi I know it is sort of hard to hear and that some might say it's not a big deal, but I find it quite annoying. I think using headphones (which I often do) makes the sound more apparent. None of N64 AVIs on this site have the clicking sound. Could that be because they were encoded on Linux and not with the Windows version of Mupen? I don't expect that anyone will fix this problem. Just thought I'd point it out.
Posted: 5/21/2007 9:27 PM
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laughing_gas
Former player
Joined: 10/1/2006
Posts: 1102
Location: boot_camp
Is it a problem with your sound card/driver?
Borg Collective wrote:
Negotiation is irrelevant. Self-determination is irrelevant. You will be assimilated.
Posted: 5/21/2007 9:40 PM
Quote
AQwertyZ
Joined: 12/3/2006
Posts: 131
Location: Seattle
laughing_gas wrote:
Is it a problem with your sound card/driver?
Possibly, but like I said, I also hear it in http://people.virginia.edu/~avw6s/MarioKart/FlowerCup_Testv5-CM.avi, which was encoded by someone else.
Posted: 5/21/2007 9:57 PM
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laughing_gas
Former player
Joined: 10/1/2006
Posts: 1102
Location: boot_camp
Maybe your sound card/driver doesn't handle Mupen avis very well.
Borg Collective wrote:
Negotiation is irrelevant. Self-determination is irrelevant. You will be assimilated.
Posted: 5/21/2007 10:23 PM
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DeHackEd
Emulator Coder, Site Developer, Former player
Joined: 11/6/2004
Posts: 833
I don't think sound card quality makes a difference. The sound is captured between the audio "hardware" of the N64 and the audio plugin. That said, I have nothing to offer for explanation or fixing the problem.
Posted: 4/21/2009 11:01 PM
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AQwertyZ
Joined: 12/3/2006
Posts: 131
Location: Seattle
Okay so I finally decided to investigate this problem 23 months later (!)...I downloaded the source (mupen64_src-rerecording-v8.7z) and I think I discovered that the problem occurs when the audio is resampled before it is written to the AVI. Anyway, I am somewhat embarrassed to report that this problem had already been solved by Bisqwit here: http://tasvideos.org/forum/viewtopic.php?p=84748#84748. The left and right audio channels are reversed, but other than that the audio sounds great! The audio/video desync problem was apparently also fixed. (I didn't even know about that problem until more recently.) I would have thought this problem would have been documented more thoroughly. Does this mean that every published N64 TAS on this site was encoded using some obscure copy of Mupen that no one can find, or am I just missing something here?