IIRC, they said between 4000 and 6000. But then, everything from an iPod, to a helicopter, to an MRI machine, to an airplane gave him varying degrees of issues, in terms of sound. And not sure if all of them actually fall into that range, or whether the writers just took liberties for the sake of plot.
And that was one thing about him. He was damn near immune to any attacks barring weakness exploitation, but he was very susceptible to weakness exploitation.
Let's be honest without weakness exploitation Spider-Man has no chance of hurting Venom.
The shit he took from Riot is something Tobey cant replicate, hell Eddie got stabbed through the heart with 50 cm wide blade and soon As he became Venom again he got up removed it from his chest and went on like nothing happened.
Riot hit Eddie so hard he easily flew 30m meters then he jumped on his face after he threw him another 50 meters away slamming against metal and concrete and Venom didn't even flinch.
He might have stopped a train but his striking power is nothing compared to the mentioned above.
Spider-Man's punches would have 0 effect on him.
Funny enough Spider-sense would probably apply for Spider-man here which would help out a lot.
As far as this threat goes is their any specific enviroment that would allow Spider-man to gain the upper hand. As while Spider-Man is faster and has better raw strength feats...I'm not sure how he'd actually hurt Venom unless he can somehow brute force the symbiote suit to get to Eddie.