Lunar II Stuttering Audio in Opening and in Cutscenes.

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I believe I briefly mentioned this elsewhere but I think this deserves it's own 
issue section. 

In Lunar II: Eternal Blue during the opening (when you start the game and see 
the Working Designs logo and read the scrolling text) the audio does small 
stuttering practically every second. It does this in all animated cutscenes as 
well, along with the title screen. 

I'm using model 1.0 BIOS and r706. However the issue has been present in all 
builds of Genesis Plus GX since it's Sega CD release. 

Original issue reported on code.google.com by TheRealB...@gmail.com on 23 Jul 2012 at 9:24

• Merged into: #196

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I noticed this too, i think it's related to some PCM desync during long 
sequences (also happen in Snatcher) . It should disappear if you enter the 
emulator menu then exit back to game, or if you force vsync off, right ?

Original comment by ekeeke31@gmail.com on 24 Jul 2012 at 6:21

• Changed state: Accepted
• Added labels: Priority-Medium, SoundEmulation, Type-Defect

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No, the problem still persists even after doing your recommendations. This 
might work with Snatcher, though I can't accurately say since I've played next 
to nothing of Snatcher on Genesis Plus GX. 

Original comment by TheRealB...@gmail.com on 24 Jul 2012 at 1:35

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No, for me, audio indeed started to glitch at this exact point during the Lunar 
2 intro (when the scrolling text appears) but glitch disappeared as soon if i 
enter the emulator main menu then go back to game. 
I also noticed that if i made a savestate just before this point and load it, 
audio does not glitch at this point anymore but still after a while if i leave 
the intro running without entering the menu, which is why my first idea was 
some kind of buffer overrun or underrun issue. I am also pretty sure it did not 
glitched a single time if i play the whole intro with vsync off. But this was 
with an earlier version, i did not test this behavior with last svn.

Original comment by ekeeke31@gmail.com on 24 Jul 2012 at 3:00

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I tried running 1.7.0 but the problem was still present even after doing all 
your steps. I even tried running it from SD as well but no luck. 

This is weird because I remember when I first started the game it didn't glitch 
up. Maybe the way to get it to stop stuttering is a bit more random then what 
you might have thought originally?  

Original comment by TheRealB...@gmail.com on 24 Jul 2012 at 6:23

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I have this same issue with the Japanese version of Lunar II.  If I am correct, 
I also remember having this issue using the same iso on picodrive for psp.

Original comment by blacksto...@gmail.com on 4 Aug 2012 at 1:39

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Original comment by ekeeke31@gmail.com on 13 Sep 2012 at 11:49

• Changed state: Duplicate

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I have only one issue with this great port....the sound on LUNAR 2 us, it is 
not stuttering at all on mine...its too fast, it makes the voices sound like 
the chipmunks. I hope theres something im missing and its not a real issue with 
the port.

Original comment by segadrea...@gmail.com on 22 May 2013 at 7:30

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well, to be exact it is not a port, sega CD emulation was entirely written from 
scratch ;-)

Anyway, the issue with stuttering audio has since been fixed, it was due to a 
general sync issue, not specific to this game.

Music works fine and at correct speed for me so it's probably an issue with 
your settings or CD image files. How fast are we talking about, can you make 
recordings ? If there are wav files coming with the game .iso, check that they 
were recorded at the proper samplerate (emulator needs 44.1kHz which is the 
original samplerate).

You can also check if the issue is present in earlier versions (1.7.0, 
1.7.1,...)

Original comment by ekeeke31@gmail.com on 22 May 2013 at 8:05