R
rcatalano
Carbometics has a comparison of the clicking noise for different model valves. I can't vouch for how accurate it is, but my wife says the sample of the ATS valve is similar to the ATS valve I received last month.
I don't think I would use this to make a valve decision, but I thought it interesting.
Carbometics heart valve sound comparison
I don't think I would use this to make a valve decision, but I thought it interesting.
Carbometics heart valve sound comparison