By all the rules for power turbines (for helicopters and some turbo-props), N1 is compressor speed, and N2 is power turbine speed. So, be careful when asking what is what - which engine type are is being referred to makes a big difference.
There is supposedly a convention that talks about which station is which number - N1 is at the inlet to the compressor in this convention. Is the convention more honoured in the breach than the observance???