No Input Signal for Sample Recorder

I’m trying to create a voice sample using either the internal mic or a a USB mic

Whichever I choose, no audio signal shows on the sample recorder’s VU.

No source is indicated either (although the manual says that may happen).

I’m using a Mac.

Thanks. I had done that already.

Yes, I tested it.

I switched the frequency and still nothing. The mic is not being used by another application.

I appreciate you’re help, but I think I might just have to record vox elsewhere, import it as a sample, and sync it up.

You may need to check your security settings?

Thanks, but still no luck I’m afraid.