How do you get 2.33 latency?

AtomicXL · Mar 21, 2003, 05:33 PM

For that matter, how do you get anything bellow 21.33 MS?

The only options in my kX ASIO menus are 21.33ms and 42.66 ms.

BTW, I'm using a Sound Blaster Audigy Plat., AMD XP 1600+, 256MB of SDRAM.

Max M. · Mar 22, 2003, 01:24 AM

You've missed scrolling arrows at the right of the latency selection list....

AtomicXL · Mar 23, 2003, 10:40 PM

I feel like a frag slabbin idiot, haha.

~~bluelight~~ · Mar 31, 2003, 04:47 AM

You will not have any use of 2.6 ms latency on that machine.

The lowest reasonable latency would be about 5 ms.

Bluelight

Max M. · Mar 31, 2003, 08:10 PM

>You will not have any use of 2.6 ms latency on that machine. - why do you think so?

kokoon · Apr 2, 2003, 06:56 AM

i can get latency < 10ms on my celeron566

Reinhard · Apr 19, 2003, 10:31 AM

My asio latency (throughput analog out --> in) is about 60ms !!

when under linux 2.4.18 i get 10ms throughput latency....

So should i live with that under Windows or will tuning PCI Latency settings reduce the asio latency to 10ms (well actually i don't believe this would change so much... )

Someone out there using the kxDrivers with an old PentII300 ?

Thanks in advance

Max M. · Apr 19, 2003, 06:03 PM

>My asio latency (throughput analog out --> in) is about 60ms !! - hmm, how do you measure this? i mean are you sure that you compare the same things at all?

Reinhard · Apr 20, 2003, 08:17 AM

60ms throughput latency measured by "pure data" (dataflow DSP program) with portaudio asio lib connected to kXdriver ASIO, you send out impuls trains and record the analog in , in "PD" you can then measure the time delay

the linux latency is measured with the same prog and same "function" but the linux drivers without ASIO of course (as there is no such thing in Linux...)

Max M. · Apr 20, 2003, 05:52 PM

interesting.. could you give me a link to a more technical information about that "pure data"? - well, with such method (playback->record) you should get "final_latency = software_latency * 2 + hardware_latency" - where the software latency is the one you set in asio control panel and hardware latency is the latency of the card itself (adc, dac, resampling buffers) - not more then 1...2ms.... so you probably just have asio latency set to 30ms in control panel... (PCI Latency is not relaited to ASIO latency at all, except it can affect stability and perfomance of the whole system...)... or.. maybe there's something wrong with you "measurement setup"...

Reinhard · Apr 21, 2003, 05:56 AM

Here are some links: http://pure-data.sourceforge.net/ http://www.pure-data.org/

The ASIO capability of this prog is achieved through the "portaudio" library by Ross Bencina (also author of audiomulch i think). There is no control panel for ASIO there, but you can specify the buffer lengths and numbers of buffers. When i specify shorter buffer lengths and/or smaller numbers i get glitches in the sound - so i think i have the correct best buffer settings that are possible.

How do you measure latency when not by recording the output ?

My measurement patch is actually from the author of puredata, so there shouldn't be a problem with it - well, under linux i use the same patch with the same prog and it works (getting the 10ms latency worst case).

Well looking in the Control Panel of Windows: there is no ASIO setup there - should there be one ? I think the Control Panel you mean, is the one popping up when you change audio settings in for e.g. Logic Audio , but not elsewhere....right ? I just looked in the kxManager itself: settings->setup buffers->record buffer as well as playback buffer set to 2048bytes (2,13ms) - i remember, that i also tried to shorten this, but it just introduced glitches in the sound aswell, so i think these are the smallest values possible there...

By the way: thanks for the interest and your time so far !!

Reinhard

**Eugene Gavrilov** · Apr 21, 2003, 03:08 PM

you need to set-up the latency manually via kX ASIO applet
because it ignores the buffer sizes that the application specifies
run any ASIO host and open ASIO control panel in it in order to tweak the latencies
or run RegEdit and select the smaller values in the following registry keys:

HKEY_CURRENT_USER\SOftware\kX\ASIO\ASIO0

1024 corresponds to 21ms

/Eugene

Blento · Apr 30, 2003, 07:24 AM

Reinhard--"So should i live with that under Windows or will tuning PCI Latency settings reduce the asio latency to 10ms (well actually i don't believe this would change so much... )

Someone out there using the kxDrivers with an old PentII300 ?"

I use KX drivers with an even older computre ..233MMX Cyrics

))
it works mostly fine....

Orion · May 14, 2003, 09:42 PM

Quote:

Originally posted by Reinhard
My asio latency (throughput analog out --> in) is about 60ms !!

when under linux 2.4.18 i get 10ms throughput latency....

So should i live with that under Windows or will tuning PCI Latency settings reduce the asio latency to 10ms (well actually i don't believe this would change so much... )

Someone out there using the kxDrivers with an old PentII300 ?

Thanks in advance

Did you say Linux & ASIO ??! Oh my God. I must have some links please.

If we could use Linux with Alsa ASIO based VST host, it would be GRRRRREAT!

Btw. i can squeze 5ms out of my Athlon 900 / Live value, but i'm using 10ms for composing, and 20ms safety for recording.

I've had 2ms with a previous kx-release once, but it never worked later with newer drivers.

BTW. take a look at my subThread at the MIDI and Soundfonts Thread.

"Replacing the KX-MIDI Synth(Soundfont) with an integrated VST chaining Host"

Blento · May 15, 2003, 02:40 AM

What software do you use for recordings and mixing?..
and where can i find Drivers for Audigy in Linux?...
Danke..