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Latency issues with Cubase 5LE and Digitech BP355

This is my first venture into multi-track recording and first time using Cubase so I'm sure there is something I am missing that is causing the latency problems and am hoping someone can help.

Here's the situation, my pastor has provided wav files of him playing guitar and harmonica plus singing from a studio session and he has asked me to add bass to it. Basically, I have one lane in Cubase with him and an empty lane for me to record my bass onto. I'm using Cubase 5LE that came with my Digitech BP355 effects board and have my bass plugged into the BP355 which is then connected via USB to my PC. In the devices section I have selected the BP355's own ASIO driver as both input and output.

So, to summarize, when I hit record in Cubase I am hearing my pastor's recording played to me through a pair of headphones connected to my BP355, and my bass signal is being recorded into the second lane in Cubase via the BP355's USB recording function.

This is all working great except for the heavy latency. The ASIO drivers slider is set to low latency, which it states is 5ms. However, when I play back my work there is a much more noticeable latency, to the measure of what sounds like 200+ms. I would have guessed that the delay is caused by latency with sending the already recorded track from cubase through the BP355, however, I would have thought this would also be subject to the 5ms latency as stated by its ASIO settings.

Can anyone please provide any advice as to where my latency issue is coming from and how I can address it?

Many thanks in advance.

Russ.
 
I would also guess that playback during monitoring is adding some latency, but there could be other things. Sometimes it's a trial and error thing until you get it to an acceptable amount of latency. I also think that USB tends to add more things to chase down than the old soundcard way of doing things.

Are there speakers plugged into your soundcard? Do you have output as ONLY through the USB device? (EDIT: oops you said you did) Does the BP335 have a DI/dry option? Recording and monitoring while using effects realtime can really bog things down. Maybe try recording dry and adding effects and/or comp later.

Like I said, USB can be finicky. You might try monitoring/output through your soundcard, and just use the BP355 to play and record. Since you're going direct you don't need to isolate anything soundwise. Either headphones or speakers can be fine. Believe it or not, I've found that to work better at times, depending on how much the input device is adding.

When all else fails, correct timing/clips in the DAW. No shame in that. Whenever I record in Audacity it's almost a forgone conclusion that some tracks are gonna have to be "nudged". Your ear is ultimately your best producing tool.

EDIT: in the past PCs/MACs were not as fast, and you had to keep check on other background stuff to free up processor power. Less of an issue nowadays, but windows in particularly can still get bloaty. Maybe check for antivirus and anything else running in the background, and temporarily disable. Careful, though.
 
Thanks for your reply, I have things setup pretty much clean other than the amp and cab modelling in the BP355. There is no direct / dry option that I can see, only a bypass setting which is designed for taking the pedalboard out of the loop when jacked to my amp.

As you mentioned, I think I will just have to make the nudge adjustments to the tracks myself, at least until (or if) I can find another solution.

Thanks again!

Russ.
 
Just a stray thought since it hasn't been mentioned, are you using USB 2.0 or 3.0? I accidentally used a USB 2.0 port to connect a keyboard to my (newish) computer and had similar latency issues. Switched to one of the USB 3.0 ports and those issues went away.