Optimum Buffer for Eternal SPU

Leo · September 15th, 2002, 01:45

Hi all,

I just wanted to ask what buffer size you use. I had it set to 8, the default, which worked fine for Chocobo's Dungeon 2, but makes the sound skip many times in a row for short instances with Megaman Legends. Setting it to 32 did the trick.

Can a buffer this high cause any problems? What is the buffer value measured in? Is there a way of determining the optimum value specific to one's system?

Thanks,

Leo

**Kane** · September 15th, 2002, 02:38

The higher the buffer, the longer the time between the sound being called and it being played, IIRC. Which would mean with a buffer of 1000, sounds would happen a second after they are called.

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September 15th, 2002, 07:59

When I use Eternal SPU, I turn off framelimit in Pete's GPU and use "SPUAsymc"->"Wait" and a buffer length of 32 always works flawlessly.
When I was translating a plugin guide for Dark Watcher (or some other incident), I got to know that the buffer length in Eternal are on the unit "blocks". 1 block = ~0.05 second long of sound data/sound output delay.

**Betamax** · September 15th, 2002, 22:55

Basically it depends on your soundcard, it's drivers etc, the best method is just to tweak it manually. The best advice is to set it as low as you can get away with before the sound starts to distort.

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OmniDistortion · September 15th, 2002, 22:59

Quote:

Originally posted by PNaveS
When I use Eternal SPU, I turn off framelimit in Pete's GPU and use "SPUAsymc"->"Wait" and a buffer length of 32 always works flawlessly.
When I was translating a plugin guide for Dark Watcher (or some other incident), I got to know that the buffer length in Eternal are on the unit "blocks". 1 block = ~0.05 second long of sound data/sound output delay.

so around 20 would equal a second right?... I find that hard to believe actually...
I think it would be more like 0.02 seconds long because I have had to extend it...
but yes I do believe it varies on the power of your sound card and the amount of power it uses so it is variable for each of us

dogulation000 · September 19th, 2002, 05:03

I have a buffer 0f 89, and I use Smooth.

**fivefeet8** · September 19th, 2002, 06:25

I've always had the sound buffer at default settings without any sound problems..

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**Kellicros** · September 19th, 2002, 07:25

Quote:

Originally posted by fivefeet8
I've always had the sound buffer at default settings without any sound problems..

Same here.

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Prafull · September 19th, 2002, 09:10

I use eternal light and anything between 8 to 32 is fine.

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September 19th, 2002, 10:48

for games like beatmania it's important to set it as low as possible

the default is good though, you wont notice that.

September 15th, 2002, 01:45	#1
Leo Registered User Join Date: Sep 2002 Posts: 5	Optimum Buffer for Eternal SPU Hi all, I just wanted to ask what buffer size you use. I had it set to 8, the default, which worked fine for Chocobo's Dungeon 2, but makes the sound skip many times in a row for short instances with Megaman Legends. Setting it to 32 did the trick. Can a buffer this high cause any problems? What is the buffer value measured in? Is there a way of determining the optimum value specific to one's system? Thanks, Leo

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September 15th, 2002, 02:38	#2
Kane 邪魔ゎ指せない Join Date: Jan 2002 Location: Gosport, England Posts: 26,303	The higher the buffer, the longer the time between the sound being called and it being played, IIRC. Which would mean with a buffer of 1000, sounds would happen a second after they are called. __________________ >Site Live< Pop over to my site for help with setting up PSX emulators. Help for the Final Fantasies and other RPGs avalaible Celes: (Desktop) Phenom II X4, 4Gb DDR2, GeForce 8800 GTS 320Mb, 32Gb OCZ Vertex SSD, 500Gb RAID HDD, Windows 7 Home Premium Erika: (MCPC) Revo3610, Windows 7 Home Premium Kimiko: (Craptop) HP Mini 210

September 15th, 2002, 07:59	#3
PNaveS Guest Posts: n/a	When I use Eternal SPU, I turn off framelimit in Pete's GPU and use "SPUAsymc"->"Wait" and a buffer length of 32 always works flawlessly. When I was translating a plugin guide for Dark Watcher (or some other incident), I got to know that the buffer length in Eternal are on the unit "blocks". 1 block = ~0.05 second long of sound data/sound output delay.

September 15th, 2002, 22:55	#4
Betamax Resident Movie Critic Join Date: Apr 2001 Location: Belfast, Northern Ireland Posts: 9,506	Basically it depends on your soundcard, it's drivers etc, the best method is just to tweak it manually. The best advice is to set it as low as you can get away with before the sound starts to distort. __________________ Superior marketing of an inferior product will always win over inferior marketing of a superior product.

September 19th, 2002, 05:03	#6
dogulation000 The Upcoming Rookie Join Date: Mar 2002 Posts: 620	I have a buffer 0f 89, and I use Smooth.

September 19th, 2002, 06:25	#7
fivefeet8 &-)---\|--< Join Date: Apr 2001 Location: Smallville Posts: 8,060	I've always had the sound buffer at default settings without any sound problems.. __________________ Play emulated games online Main Rig\|\|Intel i7 2600k @4.4 ghz\|2x4 gb DDR3 1600\|Asrock Extreme7 Gen3\|EVGA GTX670 2GB\|EVGA GTX460 PhysX\|2x Seagate 160gb SATA150 Raid0\|250 gb Samsung SATA2 HD\| OCZ 240GB SSD SATA3 \|NEC 3520 4x/8x DVD+R/RW DL burner\|Rosewill 1000 Watt\|40" Sony Bravia 1080p\|Logitec 5.1 Speaker System w/10" Sub\|Windows 7 64bit Ultimate\|\| SimplyBuyIt - Health&Nutrition

September 19th, 2002, 09:10	#9
Prafull Registered User Join Date: Aug 2001 Location: India Posts: 5,430	I use eternal light and anything between 8 to 32 is fine. __________________

September 19th, 2002, 10:48	#10
Samor Guest Posts: n/a	for games like beatmania it's important to set it as low as possible the default is good though, you wont notice that.