Alas it seems to be hard to find out what wdf01000.sys does exactly. The best info I could find is that it belongs to the "Kernel Mode Drivers Framework" which means that a lot of drivers could use it, it might be not responsible for DPC issues in a causative way (a driver using it may cause that instead) and disabling it is most likely not possible then. But that's mostly speculation from me.
Might be your 2nd choice candidate in the report/logfile, if at all - remember that DPC spikes on the checker display have to coincide time-wise with the audible problem to mean anything.
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