How to adjust pitch of 60fps clip in 25p timeline

I have a 25fps timeline (mainly C300 footage) for this docu(first time i cut on FCPX) but now my director wants me to insert some IPhone clips which are recorded 60fps(even few on 30fps) with audio .
Is there any way to convert and pitch shift audio that it looks and sounds normal in that timeline(and no slowmo either) .
Thanks-this is my first post here-hope i didnt break any rules...

Just drop them in the Timeline, they should just be fine automatically by default. Are you having a specific issue?

Been there - hate that

Try it - if it sounds wrong you could try converting original files off line i e on the internet to the correct frame rate that worked for me once
www.online-file-convert.com/video-converter/convert-to-mov

+1 on what FPX.guru said. I do that all the time. Just drop it on your 25fps timeline and go. The clip will be automatically adjusted to run at sound speed with audio corrected as well. If you want the footage to run slo-mo (for whatever reason) just go to your adjust speed icon and select "Automatic Speed".

What version of FCPX does this? And on what settings?

If you have the project set to 24fps then any clips at 60 / 50 or whatever will need to be altered.

When I mix frame rates my voice goes from normal at 24fps to sounding higher pitched by around 10% on the same timeline if I drop a 60fps - there is even a noticable differnce on voices between 30 and 24 fps. If the voices in the clips are different it might not be noticable.

That is unless i was recording 25 and 60 rather than 24 - 60 -

Do let me know what your project settings are and if the audio is correct if you drag it into your project as it is.