Need Help Fixing Delay In Sound From Midi Keyboard Controller Throught USB to PC & Music 6

  Hi Farmer George here. Could use some help trying to match the timing when sounds occur. I hit a key on my Midi Keyboard. It makes a sound immediately but soft synth sound from computer has somewhat of a delay. I am using a Casio 850 Privia and Music Creator 6 software. I appreciate any help I can get.  Thank You
                                                     Farmer George - New Jersey
      You can get me at

Welcome to the forum!
You say it's a MIDI controller keyboard, but also that it makes a sound when you hit the keys ?? So I assume it's a MIDI keyboard instrument, not only a controller. Anyway, that's not important.
IMO It's not a good idea to listen both to the keyboards own audio and the softsynth. That will get you distracted, latency or not.
And, as  Bob Bone mentions above, it's the audio interface and its drivers that take care of the latency and evrerything, and your post doesn't give any info regarding those. The latency is controlled by the buffer settings
of your interface. The total roundtrip latency (input+output) should be under 20 milliseconds, the less the better.
 

If you do not have some special audio interface, install ASIO4ALL and switch driver model to ASIO.
Do not be aggressive with the buffer settings, start with 512 and then go down to 128 in case you have no distortion. Build-in Realtek in most cases works fine at 256.
If you have SoundBlaster card, it has native ASIO drivers.
 
As was mentioned, you most probably want to switch local sound off. Whatever solution you take, there will be some delay between local sound and computer. But with $150 interface it is going to be significantly shorter.
 
To other.... Before you start shout at me for the bad advise.... Someone with Casio privia is likely not ready to spend $150 to get the first sound out of computer.

Your issue comes up quite frequently in the forums, and the solution is nearly always that purchasing a dedicated audio interface to take over the processing/conversion work so your computer's CPU doesn't bog down doing it, will instantly fix the kind of problems you are reporting.
 
ASIO4ALL is generally at best a band aid, and can also frequently cause its own problems.
 
I recommend you look at and pick up a well-built low feature audio interface - these start at around $150, on up, depending on adding more features.
 
A basic interface will have usually 2 ins/outs, (combination line/mic inputs), phantom power, midi in/out/thru.  You will also want to make sure drivers for an interface you are looking at are supplied for at least Windows 7, and better for also support for Windows 8 and 8.1
 
There are certainly much more expensive interfaces you could get, but there are several really decent ones at around the $150 mark.  The more pricier ones have more ins and outs, ability to daisy-chain/expand to add additional inputs/outputs, etc.
 
Focus Rite
Presonus
 
Are good examples in that price range to look at.
 
Here are a couple of links to them as sold by Guitar and Sweetwater:
 
Used Presonus AudioBox 44VSL Audio Interface $179: 
 
http://www.guitarcenter.com/Presonus-Used-Presonus-AudioBox-44VSL-Audio-Interface-110358718-i3949236.gc
 
Focusrite Scarlett 2i2 USB Audio Interface (no midi or phantom power)
 
http://www.guitarcenter.com/Focusrite-Scarlett-2i2-USB-Audio-Interface-107041253-i2162367.gc
 
Presonus AudioBox iTwo 2x2 USB/iPad Recording System

http://www.guitarcenter.com/Presonus-AudioBox-iTwo-2x2-USB-iPad-Recording-System-110316445-i3746431.gc
 

Focusrite Scarlett 2i4 USB Audio Interface

http://www.guitarcenter.com/Focusrite-Scarlett-2i4-USB-Audio-Interface-108264573-i2658350.gc
 
 

Farmer George does not say whether his key board had a midi connector or USB. If it is the latter can it still be routed through an interface as I have not seen any with a USB connector. I am new to interfaces having used a mixer for years but was recently given a M Audio fast track ultra 8R Audio interface (BTW. £160 from E Bay) I also have a M Audio Oxygen 61 controller which has a USB connector. So my question that may help Farmer George is does the controller need to go through the interface.
 
Thanks