Im currently in the search for soldiery sounding radio chat.. the problem is.. it shouldnt be to situation specific. Just the usuall - we deploy and do what we always do sound.
this was the inspiration (disregard the music, though its cool)
I ve searched for radio , but after listening to static for half an hour and getting nothing, when adding speech or talk, i thought it was time to ask those who are at home here for some references.
I'd suggest to focus on the search (or, failing that, request) for the speech content alone.
Turning a clean speech recording into a radio chat is a matter of few simple steps in post processing, including eventually the leading and trailing static or beep if you want.
understood. Could you explain the steps necessary, to archive something like in my example? I assume you need static, but what else?
The Text would be this (by a male Voice):
"Sector Sweap Team: Deploy!
Advance on Contact!
Shoot on Sight!"
Not very imaginative i imagine, but the groundgrunts dont need to be shakespear.
In this case, lofi methods are to your advantage. Record with a cheap computer mic (if you don't have that, a pair of headphones can be used as a mic). You might be able to get the results you need without much other processig: some phone services lets you download voicemails, so leave yourself a message. My cheap camera has basic video recording and that has an onboard, terrible mic that can be used for effect. A lot of MP3 players or phones will have "voice memo" functions as well.
For further processing, especially on a clean recording, use an audio editor's EQ or filter function to take out the upper and lower frequencies to simulate the limited bandwidth of radio comm. Experiment with filtering out signal below 200hz and above 5k, as rough starting points. Finally, use a compressor to bring up the noise floor. When you use this in something, you can get the radio effect of the mic being clicked on and off by having the backround noise chopping in and out sharply.
stomachache hit the nail on the head, his tips will give you the best result.
I can testify on cheap mics being apt for this case; when I voice acted for Vegastrike, I used a cheap headset with microphone, and the only thing I took care of was to place the mic out of the air flow of mouth and nose (to the side or eye level are good places for that).
Lack of quality in the mic turns to your advantage as you're gonna worsening the sound even more
The lead voice actor had come up with this series of steps to perform in Audacity, feel free to use it as a reference or starting point if you get lost in the wide possibilities.
Besides, very recently, I've found a very quick way to get there in one step: the Spaceman VST. It even has a gate level setting that triggers a beep or static when the sound level gets higher and lower than the threshold you set.
Here is an example of the VST in action, first take is clean, then 3 different VST settings follow; the parameters are quite tweakable for sensibly different results.
EDIT: The sound has been moderated and is now available.