I discovered a tip about how to get clean sound recordings in hard interiors

[Karim D. Ghantous]

A vlogger I follow (Bearing) posted a video about how to get good sound. He starts with decent microphones, but this works even with cheap ones. A lot of sound recording in interiors has a lot of ambient resonance, for lack of a better term, and this method helps mitigate it or even eliminate it. Skip to 2:47 for the tutorial:

https://www.youtube.com/watch?v=u0_X7iSmENI&t=75s

Obviously this is not news for most people, but I recall one person asking how to get cleaner sound while recording in a house (I can't find that post now, but it was about a short film). Noise reduction seems to work not only for mere hiss, but for other kinds of noise pollution as well. I tested it with a cheap headset, which has a soft hum (it's probably very poorly shielded) and it worked for that, too. If it can mostly fix output from a ratty microphone, it will do wonders for output from decent mics as well.

 

[Simon Leonhardt]

To get a clean recording is not that difficult. To record a pop song is much more challenging than voice over.
Yes, a good microphone, preamp and AD helps but nowadays it is more possible to get good sound out of a cheap setup.

To handle the reflections and room sound right, build broadband absorber. You can find a lot of info on this topic
for DIY. It is cheap, it is easy to build and the recording will be great. One thing to consider: Do not buy these cheap
foam things. Take hemp fiber, rockwool or OC703. You can find tables/graphs of these materials for absorption coeffizents to find out how
thick they have to be. voice goes down to ca. 150 HZ, but you dont need a value of 1 for complete absoprtion down to 150HZ.
Build these absorption walls around you and if possible dont forget the roof. Leave a little space from absorption wall to Mic.

I hope this will help!

 

[Marc Wielage]

Sound blankets can tame the location to a point. But a lot boils down to picking quiet locations for filming, period. Some locations are great visually but bad for sound, like a great forest area that's right in a major airport flight path.