Sonar Professional Latency Issue

[bobc971]

Had a new problem show up this weekend and I'm at a loss. Hoping for some input from good folks here.

I recorded an audio track (bass). When I went to record some keyboards with a virtual synth, I had about one-second worth of latency. 

When I removed the audio track temporarily, I had no latency issue with the virtual synth at all. Worked as it always does.

When I put the audio track back, the latency on the virtual synth returned as well.

Any thoughts on what the issue might be. Never had this occur before. Any thoughts appreciated.

Bob C.

[Promidi]

Do you have any look-a-head plugins on that audio track?

When you put the audio track back and then disable all effects, does the latency go away..  If so, then it's a plugin.

[bobc971]

Hi....great question. I actually did use an EQ plug-in to the audio track after it was recorded (which I don't usually do).

I'll give it a check to see if that's the cause. And if it is, I wonder if it can be prevented.

 

[Promidi]

1 minute ago, bobc971 said:

. I actually did use an EQ plug-in to the audio track

 

 

That would do it if the EQ is a linear Phase EQ.  (Like cakewalk's LPEQ)

How you prevent it would be determined by the exact plugin used.

[bobc971]

I really appreciate the feedback! Thank you.

[abacab]

While still recording, you don't want to use linear phase plug-ins with a look ahead buffer enabled anywhere in your project.

Linear phase is designed for the mixing/mastering phase of a project. Linear phase deliberately induces latency. That is the way it works, because it needs to buffer in order to look ahead.

In Cakewalk LPEQ for example, you can disable the LP mode and use it as a regular EQ, but in other similar plug-ins you probably should disable or remove them until ready to mix.