Drop Outs

Hey All,

What are Drop Outs? While recording, a second track appears below with the words Drop Outs just below certain parts of the recording track. When I play my recording back, it blips where the drop outs are listed on the second track. It happens at some point, and often several times, during a recording when I’m editing using punch and roll. Any ideas on how to stop this from happening?


[u]Drop-outs[/u] are gaps or “glitches” in the recording where the recording process was interrupted. It’s related to multitasking.

[u]Here[/u] are a few troubleshooting tips.

…Actually, the multitasking operating system is constantly multitasking & interrupting even if you’re only running one application. The audio data flows-into a buffer (like a long pipe or holding tank) at a smooth-constant rate. When the operating system gets-around to it, the data is read in a quick burst and written to the hard drive.

If some application, process, or driver hogs the system for a few milliseconds too long, you get buffer overflow and a glitch in your audio. It doesn’t have to be using lots of CPU time, it just has to hog it a little too long.

There is also a playback buffer that works the opposite way. It gets filled in a quick burst and the audio data flows-out at a smooth-constant rate. In this case the danger is buffer underflow if it doesn’t get re-filled in time.

Note that both buffers introduce latency (delay). That’s not a problem for recording and playback but it can be a problem if you are monitoring yourself with headphones.