audio Export - No Sound

I don't know but it's worth a try. I have always rendered before exporting but the other day, the gurus said it wasn't necessary.

Over the years I have seen both video and audio tracks where the images or waveforms are missing but they have usually played and exported well.

If you cache files are stored outside the library, simply delete the cache bundle. If the cache is stored inside the library, try this. Close the application. Open the library bundle and go to the event folder that contains the project. In the Render Files folder, trash the Thumbnail Media and Peak Data folders. Relaunch the application loading Opt-Cmd to reset the preferences, then open your own library. If the project isn't open in the timeline, open the project. Do not do anything else. Wait. Let the application redraw the filmstrips and waveforms. Does it file the entire waveform. Try changing the scale, zooming in and out, to get ti draw the waveforms. Don't do anything else in the library or the project. If the waveform appears correctly, try exporting the project.

Glad to hear everything is now OK.

Tom's advice about deleting the Thumbnail Media waveform files etc. is worth remembering for future use.

I believe he told me to do that a few years back but I completely forgot it! 😩

This one looks promising.

https://www.youtube.com/watch?v=qpyRwefK26I

Have you tried rendering everything before exporting?

What type of sound file is it?

I have done a google search which threw up a lot of comments. I don't know how useful they will be as I have not read them.

parts of audio missing in exported fcp x