I couldn't tell by the sounds of his footfalls if we were outside or not.

From out in the hall there was the sound of heavy footfalls.

The soldier heard the sound of footfalls coming toward him, then the movement stopped.

He heard sounds of footfalls on the stairs and kept moving.

I could no longer make him out, and only knew he had stopped when the sound of footfalls ceased.

The sound of soft footfalls brought his gaze back to the door.

He turned at the sound of footfalls and watched Victoria approach.

He listened a moment to the sound of her quick footfalls.

He strained to catch the sound of footfalls on the other side.

Suddenly the sounds of footfalls stopped, as those outside halted.