sound problems in playstation emu EPSXE

[luv2liv]

its really odd...

some simple games like R-Type Delta, the sound and gameplay is choppy.
meanwhile, some more complex games like wipeout 3 is super smooth on my win XP.

have u ever experienced probs like choppy sounds and play in epsxe?

 

[luv2liv]

help
anyone?

 

[Mavrick007]

That's the thing about emulators, they just emulate the playstation. What speed is your cpu? Because you have to emulate a game based on another system, you would have to have a very fast machine to run the game even though the playstation might have had lesser specs such as processor speed and cd spin speed. That's why I don't think we'll see a good Dreamcast emulator cause it will take way too much processing power. What version of epsxe do you have? I am not familiar with this one but I've used bleem and virtual gaming station and they were good on some games but not all.

You might have to get another version to play the game that you like or maybe get the latest version to the one you're using. Good luck.

 

[CZroe]

Because of the nature of reverse-engineering, emulators will always have unpredictable bugs. The sound and video portions of the emulator usually use a "high-level emulation" technique, which is very game-specific. Usually, a high-level emulator is updated with fixes or hacks to improve compatibility with specific games.

A quick run-down of HLE:
Rather than emulating the video or sound processor, the emulator looks at how the game program attempts to communicate with the chipset. For instance, calls to the sound chipset are translated into standard sound functions for Windows programs. Each different game engine can have a unique way of communicating with the system devices, although most use standard or similar methods. HLE is significantly faster than emulating those internal devices, but has serious compatibility sacrifices. An emulator is not truly complete until it correctly emulates everything. Many Playstation developers used unofficial development kits or learned how to directly access the Playstation hardware to tweak the performance of their games. This caused serious problems with compatiblity for the "backwards-compatible" PS2. PS2 developers have probably learned their lessons, so PS3 compatibilty should be much better. Nintendo has never had backward-compatibility issues with their Game Boy products because they include a real GB/GBC chipset in every GBA they sell (rather than the HLE/low-level approach of the PS2). There is literally a GBC inside of every GBA, you can even see the switch in the cartridge slot that toggles between GBA/GBC mode (try holding it down and watching the boot sequence with no cartridge inserted!). HLE can have other advantages, most PS/N64 emulators support higher video resolutions than the consoles did.

 

[CZroe]

My brother made the post above. I also have a few comments on this:

With consoles, the performance of the software is consistant on all target machines, therefore your software does not need to be written as efficiently as possible unless it already requires everything from the console.
The "simple" game may be sloppily programed on the original PSX, because as long as it runs full speed on a standard PSX it doesn't matter. Also, it may use the available processes for "extra" purposes, like creating better sound effects and higher quality music while the other may stream CD audio so it can get 100% out of the CPU for graphics.

ePSXe is from the creators of ZSNES and does not use HLE, though it's audio, video, & control plugins may.
There are also "speed hacks" for games that aren't HLE emulated. These are usually only tested for the most popular games, or the complicated ones that may need it more. The emulator has a database of what games to use it with, and therefore knows what to do with what games.

Despite the maturity of PSX emulators, compatability varies greatly between them. Try a few of the more popular ones from www.vg-network.com. PSemu Pro, ePSXe, PCSX, FPSE etc.

 

[luv2liv]

1ghz, 512mb, gf2 ultra

on winxp, only epsxe v1.4.0 works for me. i did tried out virtual game station and bleem, but those two arent compat on xp

im gonna try out the other emu like CZroe suggested, thanx
its so great playin on the pc unlike on my ps. loading time is incredibly faster!! not to mention graphics :-D

im noticing now, that the plugins does matter.... its getting better, but still not flawless for my favorite R type delta. whats your settings? n i also notice i cant use my analog, only my digital direction on the Playstation control via the USB adapter

 

[CZroe]

Try Daemon-Tools (The FIRST and BEST PSX-emu compatable virtual CD ROM drive) for extreme speed. The CD image is accessed from the hard drive and emulated as a virtual CD-ROM with all copy protections and bad sectors and everything emulated perfectly. For even more insane speeds, try putting the image in a 1GB RAM drive (An area of RAM set aside as a virtual hard drive)!