Sound of Merlin vs Packard.

[Viking]

I read somewhere in my Spitfire books that the firing order was altered in the Packard built Merlin’s to reduce crankshaft resonance ( darn if I can find the pages again!). As far as I can recall the Merlin’s and Packard’s where almost identical technically, except for this, so the question is did this alter the sound of the engine?

Anyone have soundtracks?

Regards
Viking