What to do in this kind of "dipped curve" situation?
It's not audible as something weird, nor is there a particular change in amplitude. But it looks weird.
What to do in this kind of "dipped curve" situation?
It's not audible as something weird, nor is there a particular change in amplitude. But it looks weird.
This is some large amplitude oscillation with frequency much lower than the rest of the signal. As you show no timescale, it's impossible to estimate its frequency. Also, you don't give any context, so it's difficult to say more about it.
Low frequencies can be removed with appropriately set high pass filter and there might be benefits to do so. Such oscillation may unnecessarily trigger a compressor, limiter, or other dynamic processor. They also reduce headroom in the mix.
On the other hand, any kind of signal processing may have negative impact on the sound, so while high pass filter is a commonly used tool, you should check the results critically.