Troubleshoot

Blender Freeze for a while

Blender freeze while the ffmpeg command is running, it's normal and should happen only during the generation of the waveform.

The process is slow, the addon is meant to be used on shorts time ranges, few seconds to 1min max.

If the range is longer than 1 minutes, it can take a long while to generate, depending on the audio and your processor.

Popup with "Permission denied" or "Error checking version"

If you have an error popup stating "permission denied Error" in the last lines, it means ffmpeg binary do not have permission to execute.



Or if you have this popup with "Error checking version" when using "Check if ffmpeg is ready" in addon preferences:

In both case, you need to add execution rights to the ffmpeg file:

Right-click on the file > Properties > Find the permission category and check allow execution.

If you're on Mac or Linux open a terminal and type the following command:

chmod +x 

Ensure there is a space after the "x", then drag and drop the ffmpeg file in the terminal window, this will write the path to the file in the terminal and should look like this:

chmod +x "/path/to/ffmpeg"

Then press Enter to valid.

Extra step for Mac user: you may need to try running the ffmpeg once. If a double click on the file do not work, use right click > open.
It will prompt you to confirm you want to open/execute. Once this is confirmed, Blender should be able to execute it as well.