When I drive my Toyota Corolla 1999 (Compact) down the road, I can hear this screeching noise coming somewhere from the front-left wheel. I recorded what that noise sounds like with my phone. You can hear it here:
In this audio clip, I drive with my drivers-side window open with a wall on the other side (To reflect the sound, so you can hear it better)
I am also sure that this is nothing related to the engine since I have killed the ignition to stop the engine while rolling (With open clutch), and the sound is still there.
This sound can be best heard at around 20-60 Km/h (12-37 mph). The sound starts to fade away when I reach 70 Km/h (43 mph), and is completely gone at 80 Km/h (50 mph)
The sound recording is recorded with a speed of around 40 Km/h (25 mph).
My Immediate suspicion is that there is a bad wheel bearing on the front-left wheel, but since I barely know how to change a light-bulb in my car (I'm not a car guy), I can't say for sure. What I would like to know is, based on the sound you hear: Is it a bad wheel bearing? or could it be something completely different? And would it be a difficult problem (In other words: expensive) problem to fix?