Hi all, the attached link is a clip extracted from Captain America Blu-ray. That is the first fight scene, and all the punch SFX are placed at Center channel only, there is no LFE. The SFX have punchy and nice 60-80HZ range. I always wonder how to create this kind of punch SFX, with nice low end. Would anyone kindly give me some suggestion?
Punch sounds are made from layers of different frequency transient sounds. From hitting leather with a baseball bat to hand claps for sweeteners. Its all in the frequencies, there's a hundred different ways to record sounds for this but ultimately you want lows, mids and highs. Boom sound libraries do a professional hand-to-hand combat library, it's expensive but gives you everything you'll ever need for Hollywood punch sounds.
Many (most?) SFX used in major productions are likely layers of several sounds blended together to produce what they wanted. So perhaps your solution is as simple as setting up a makeshift Foley stage and recording some low-frequency transients to mix with the SFX you already have.
The 'low sweeteners' that boom provide should be low enough in frequency to achieve what you want, you just have to process them. I suspect you are not using them correctly. If you have the construction kit it's pretty much unlimited as to what you can create with them. I said earlier punch sounds (like many sfx) are layers of different frequencies.
The thing to remember about fast transients is that they always clip. They have no head room. But the frequencies that are clipping are so high as to be vitually inaudible.