I have the X3 demo running.  I tried using session drummer and bfd eco. When I program a simple bar of on the beat bass drums the result is a jerky changing beat . What am I doing wrong. Thanks. 

Have you got your ASIO sorted out (from last post, I did a search, since you have only a few post) ? 
 
Can you play wav or mp3 files clearly ? - just to confirm audio is fine.

Hi, thanks for you time.
In X3 I can import and play audio no prob's. Both drum kits can be heard when I click or write a simple beat.
I started with the SD-2 on the demo but couldn't get a steady beat, it was like someone had turned on a randomiser on the notes I had tried to place.
I got BFD eco and it is just the same. I have tried to ensure I'm snapping to 1/4 notes, but the four beats are still all over the place. They look like they are in the right place on the piano roll.

Are you playing the loops in BFD Eco and session drummer or dragging them in to sonar's midi track ?
If the latter then does it still stutter if you just load a groove in Eco and hit the play button in Eco ?
I suspect it's your buffers or some other setting that's the problem.
 
Does BFD Eco play ok in stand alone ?
 
Steve

What is your Roundtrip latency ? (Preference-Driver Setting).
 
Also, at Preference-MIDI-Playback and Recording, try to increase the playback ms, if the default is 250, try 500.
 
Have you run this check ?
http://www.thesycon.de/deu/latency_check.shtml

What everyone is getting at is all your notes are probably in the correct place, but until you have a computer set up properly with a real audio interface and good drivers, you can have a million timing issues. 
Example: I just installed Sonar X1LE  on my office computer which has a Sound Blaster PCI card. I loaded one of my projects to mess around and forget it, the timing is just real bad. If you hit the GUI drums they take a second to sound.  It drove home the above fact to me once again... you just have to have a real audio interface. 

If it's the M-Audio fast track ultra then he's got a damn fine interface.
It would still be helpful if you provided a more detailed system specs list.
 
Also can you load any other soft synths and see if the same thing is happening.
 
Steve

Good observations, Cactus.
 
I think he has an audio interface, but it is not clear if he is running ASIO as his driver mode in Sonar, AND it is not clear what his Sample Rate, record-bit depth, and various latency reported values are.
 
It certainly SOUNDS like he is experiencing some latency issues - at first glance.
To the original poster, please provide:
 
Audio Interface: Sample Rate, ASIO Buffer Size
 
Sonar: Sample Rate, Record Bit-Depth, Total Roundtrip Latency value
 
Also, do you have any plugins loaded in the project?  If so, which ones?
 
Thanks, 
 
Bob Bone
 

robert_e_bone
Good observations, Cactus.
 
I think he has an audio interface,

Yes, he has an M-Audio Fast Track Ultra and they're not cheap so I'd be inclined to think that someone who
spends that kind of money on an audio interface probably has a pretty capable set up.
 
More info is definitely need though.
 
Steve

Thanks for the reply's.
My "system" is Dual core pc-> usb connected M-Audio Fast Track Ultra (ASIO) for audio inputs and also the outputs from X3 to a stereo amp. I have only got BFD Eco and no other VSt's apart from whatever x3 has. but I'm only opening a new project, inseerting a soft synth (Eco) and trying to program the drums to play a simple loop.
 
I only want to write my own drum tracks so I'm not using loops. In standalone, BFD can only play loops, loops loaded in standalone mode all play in time, mouse click hits have no latency. The mouse click hit when opened within x3 as a vst are very laggy.  I noticed that when installed, Eco has a 32 bit and 64 bit version, I can open either in stand-alone mode, but only the 32 is visable in the soft synth menu.
I think the audio interface was a good one but part of a bad batch based on it's serial number, I have had this confirmed in M-Audio forum. Hence I was given it several years ago when  a guy upgraded it and he said it was worthless. It takes a while to switch on and get your pc to recognise it has been connected. Once connected with reason essentials it is flawless, but I hated reason drums, hence my demo-ing x3 and buying BFD Eco.
As I am using the M-Audio device I presume my internal PC sound card is irrelevant? I know it's a crappy old sound blaster.
I'll be able to get back onto my PC tonight and I'll check All sample rates, bit depth, and round trip latency. I will also see if I can program a simple bar for one of the other soft synths using the piano roll without the timing problems/issues.
 
Thanks again.