Help - Pickup Circuit

[miketo at za.ibm.com]

Hi, Please help,

I have seen some of the discussions on the subject of Inductive pickups for
spark.

I have a system where the signal from a inductive pickup is fed into the
mic input of a pc, to count the sparks.

The problem is that the software gets confused, for every spark puls
consists of a number of pulses that is picked up.

Can anybody please supply me with a circuit to convert the input to one
single spike per spark ??

Thanks Michael.