Audio waveform midline is above zero on y axis; how can the entire waveform be centered to 0

Audacity Help Forum
1

I have a 2-channel stereo recording. Both L and R channels are recorded cleanly but with their midline above 0 on the Y (amplitude) axis by about 0.0025. How can I drop the entire recording so that for each L and R channels, the waveforms are centered to zero on the amplitude axis (Y axis)?

Here is an image illustrating the problem.

image
image1135×434 10.7 KB

Thanks in advance.

2

Duh… OK, I found it. Effect > Volume and Compression > Normalize > Remove DC Offset.

Thx for listening!