You play a note and the computer thinks about it. Briefly, perhaps, but long enough to make the performance uncomfortable. The useful question is where that delay comes from. Repeatedly dragging the same buffer setting back and forth is a less useful form of diagnosis.
Separate the two problems
The audio interface and host process audio in buffers. Smaller buffers generally reduce delay, while larger buffers give the system more time to work. Plugins can add their own delay through processing that needs extra samples, such as lookahead. Ableton describes both in How Latency Works.
Crackles and late monitoring are different symptoms. If reducing the buffer improves timing but introduces dropouts, the new setting is not a useful recording configuration. A stable compromise beats an impressive number in a settings window.
Make a clean comparison session
- Save your current project. Create a small test session using the same interface and sample rate.
- Start without effects. Record-enable one audio track or load one simple instrument, according to what you are testing.
- Try a smaller buffer. Play or sing long enough to notice both response and reliability. Stop lowering it when crackles begin.
- Add the actual processing back. Include effects on buses and the main output, not just the track in front of you.
- Note the change. When the delay returns, inspect that processor's reported latency and manual.
For a clear test, remove a suspected plugin from the test copy if its bypass behavior is uncertain. Some hosts keep accounting for a bypassed device's reported latency. Preserve the original project so diagnosis does not become accidental mix revision.
Keep the recording chain manageable
Choose only the effects that the performer needs to hear. A rough reverb or a basic tone may be enough while tracking; the final mastering chain usually is not. Write down anything you temporarily remove so it can be restored for mixing.
If your interface offers direct monitoring, compare that path with software monitoring. Direct monitoring can avoid the trip through the DAW, but it will not necessarily include your software effects. Avoid accidentally hearing both paths at once.
Once the performance is recorded, you can use a less demanding monitoring setup and restore processing. Save a clearly named tracking version and mixing version if that keeps the change easy to reverse.
What delay compensation actually does
Delay compensation helps keep paths aligned by accounting for processing delays. It cannot process a live note before the note arrives. Treat monitoring-specific low-latency options as host features to read about and test, not a universal switch that makes every chain instantaneous.
If audio is recorded out of place, check the host's recording and monitoring settings separately. Avoid moving every take by eye before identifying a consistent cause. For relationships between multiple recordings of one source, see phase versus polarity.
Common questions
What is the best buffer size?
The lowest setting that remains stable in your actual recording session. There is no single number that fits every computer, interface, sample rate and plugin chain.
Should I increase the sample rate to fix latency?
Do not change the project's sample rate as your first troubleshooting step. Identify the buffer and processing contributions first, and check the workload and compatibility implications before changing the recording format.
