There's a broadcast warning going out at 10:30.
3 seconds sound clip from the The Invisible Man (1933) movie soundboard.
You can hear this line at 00:40:51.033 in the Blu-ray version of the movie.
Quote context
[...]
- Stolen, you take charge of the search in the hills.
- And Hogan, you'll take all the villages out to the river.
- Now, we shall comb the country for 20 miles round.
- We shall have 1000 men out tonight. Tomorrow we shall have 10,000 volunteers to help them.
- There's a broadcast warning going out at 10:30.
- Now, at all costs, we must avoid a panic spreading.
- Now get away to your districts at once, and send me a note of your headquarters.
- And remember, he'll leave tracks, even if he himself is invisible.
- I must interrupt the dance music for a moment. I have an urgent message from police headquarters.
[...]