SONAR X3 Producer: can't hear audio when recording line in.

I just installed SONAR X3 Producer and I'm really stymied by this. I'm using a Mackie mixing board routed to the line-in jack on the back of my computer. The input for all my tracks is "Stereo Line In (ITD High Definition Audio ...)". The tracks are output directly to Master, and Master Out is to "Speakers/Headphones (IDT High ...)". 
 
When I play a track the Master volume meter lights up and I hear the track through the headphones/speakers. But when I'm recording onto a track I hear nothing in the headphones/speakers.  The volume meter on the track lights up, and the audio is successfully recorded on the track, but I hear nothing. 
 
If I turn Input Echo to "On," then I hear the input but with a substantial delay. The delay gets shorter as I lower the mixing latency but of course the lowest it goes is 30 msec so that's no help. 
 
I'm running Windows 8.1. My sound card is Beats Audio which HP apparently thinks is pretty good since they stamped the Beats logo on the chassis. I never had this problem using SONAR X1 Studio on my old computer, so I don't have a clue.
 
How do I fix this?
 
Thanks,
John
 
I had this posted in the wrong area before. If it helps you can view the posts in that thread here: http://forum.cakewalk.com/SONAR-X3-Producer-LineIn-will-not-go-to-speakers-m3061211.aspx
 

Thanks, Dave.  My computer is a new HP ENVY 700 series, with a 4th Gen i7 quad core processor, 12GB of Ram and a solid state drive so processing shouldn't be a problem. The onboard audio card is 'beatsaudio'. My old computer had a stock audio card and while I did experience dropouts a lot (running SONAR X1 Studio), I rarely if ever had a latency problem; and as far as I call I never had "Echo" turned on. Does that square with your experience? Could it be a bug in Windows 8.1? 
 
I appreciate the idea of a dedicated audio interface but I'd hate to spend hundreds of dollars or more not knowing if it will solve my problem. Especially since the old computer worked adequately with a stock sound card. Here are the specifics on my computer:
 
Operating systemWindows 8.1 64
Processor 4th generation Intel® Core™ i7-4770K processor quad-core[3.5GHz,8MB Shared Cache]
Keyboard and Mouse HP USB keyboard and optical mouse with volume control
Memory 12GB DDR3-1600MHz [2 DIMM ]
Hard drive 256GB Solid state drive
Office software Microsoft Office Trial
Primary optical drive SuperMulti DVD Burner Productivity ports
15-in-1 Multi-slot Media Card Reader, 6 USB Ports (Front/Top), Audio [Front 4USB2.0, Top 2USB3.0]
Sound Card Integrated Sound, Envy Audio; Beats Audio
Networking Premium Wireless-N LAN card and Bluetooth(R )(2x2)
Power Supply 460W Power supply
 
There's gotta be some way to achieve this basic functionality with the system I have right now. :- (  To make matters more difficult, Cakewalk has been closed for the last 7 days at least. Do you know why?
 
- John

I'm hoping that it's not a computer or OS-based problem because, while I still have 5 days left in which I can get a refund on this computer, I'd hate to have to go through all that. Please let me know if we can categorically rule out a computer or OS-based possible cause of my problem.
 
Thanks!
John

Johnny, you've invested a lot of money into a pretty powerful pc, so please don't cripple it's capabilities by trying to run Sonar on an onboard chip which probably costs a few cents to manufacture.
 
It is definitely the weakest point in your entire system - you will notice a huge difference when running on a dedicated audio interface.

"Echo on" is the only way I know of to monitor while recording through sonar - it had to have been on in X1.
 
Did you run the installation of X3 (or X1 for that matter) as administrator (not just from an admin account)?  That could be contributing to the problem.
 
Also, your PC may have come with "Bloatware".  There is a program called LatencyMon (I think that's the name) that will tell you whether or not you have latency spikes (and what might be causing them).
 
Also, have you tried disabling you wifi card - many times those will interfere with audio.
 
You can try AISO4ALL as well, but it may not work (it doesn't with some systems.)
 
Again, though, your weak link is an audio interface and it will solve your issues if you buy one that will do what you want it to do.  If you think it is a risk buying an interface, you can get one and return it if it doesn't work (you might be upfront with the store about what you are going to do or go with an on-line retailer that has a good return policy.)

YOU NEED A PROPER AUDIO INTERFACE! end of story...
There is probably more threads started here by people with your issue than any other issue ever raised here on the forum,, and this goes way back in time too. 
You buy a $1,000+ computer and spend $200+ on a DAW and then don't buy the only important component??
The audio Drivers are the heart of a DAW recording set up. They are actually more important than the hardware itself.
Those drivers are what give the system stability. They also solve the latency and timing clock issue.
Not only will you hear the latency, Your tracks will never be in sync. Been there done that! Digital audio is not just the conversion of analog to digiital,, it's complicated,, do you really want to use a $5 MOBO chip to achive this??
 
Reason I say this is my very first post here was a about the same as yours, Mine was the infamous Sound Blaster audio card  which 1,000 of gamers gave the big thumbs up to.  I paid $300 for it... But It never worked for audio.
( I also tried ASIO4all don't bother)
Start shopping.

(Sorry if I'm repeating things that were already said - I left it overnight before submitting and other posts have come in since then.)
 
Agreed on the audio interface issue in the above posts - a better interface will give you lower latency and probably fewer drop-outs.
 
Just to clarify your problem: is it just that you don't hear the track that you're currently recording, or that you don't hear anything at all whenever you are recording? In other words, if you are recording a second track over a first track, do you hear the first track play back?
 
If so, that is normal operation unless you have Input Echo enabled for the second track (and is why Input Echo exists). The 30ms latency is a limitation imposed by your computer - you might get better results with an ASIO driver (probably via ASIO4ALL), but the best approach here is to get a dedicated audio interface that is designed for low latency use and can give you <10ms latency.
 
If not, that sounds like either a bug with Sonar (unlikely) or a weird incompatibility with your sound chip (more likely). The resolution there would be to try updating the motherboard/sound chip drivers, or, again, buy a new audio interface (preferable).
 

when I go into Sound/Recording/Stereo Mix Properties/Listen and check "Listen to this device," then -- regardless of whether I select "Default Playback Device," or "Speakers/Headphones (IDT High ...)" -- I get a weird slap-delay on the audio tracks already in  the timeline

 
Yeah, don't do that. When you enable that checkbox, you basically create a loopback in Windows where the output is piped back into the input. You shouldn't need to use that option unless you want to record the output of some other program (eg. recording from YouTube).