i need to remove background noise like an air conditioner running or a TV playing in the background and make the enhance the voices from different people so you can actually hear them clearly.
Audacity can remove minor, quiet, constant background noises, but not noises the same volume or louder than the voice. It can’t do the other two at all.
TV in the background is one of the problems that can kill a show.
We can’t take apart a performance into individual actors or instruments and that’s what you need to do to amplify or process one separate from the others.
While it seems like sound capture should be easy, it’s actually much more difficult than aiming a camera. There is no “zoom microphone” so you have to get a microphone close to the performer and there are not a lot of options.
My Olympus sound recorder has a good trick. They can process the microphones to narrow the acceptance angle and help reject interference like room noises or other conversations. But that means you have to aim it and that risks picking up hand noises, particularly if the performer is moving. You can widen out the angle for times when you need to record a conversation of two or more people from an unattended position. But there is no easy record everything and select the performers later, and background noises like in a restaurant will just kill you.
That’s why newsies still do this.
Many people have a good idea how to shoot a movie with a camera, but less well known is what the sound people go through to get the voices.
People do shoot news interviews on a phone, but generally voice-only and important group interviews feature a forest of hands jammed in front of the performer in order to get good sound. Sometimes they shoot split sound, where the video and sound are shot on separate devices and put together later in editing.
Then there’s the Dreaded Reshoot. “We didn’t get good picture or sound. We’ll have to get everybody together again and reshoot it.”
Crazy-important shoots may be double recorded. That’s what this is. I’m the microphone on the left. The backup microphone and recorder is on the right.
You do have some pieces of this down. I’m finding how difficult it is to get content from an iPhone, particularly if you don’t have on-line storage available.
You may not have needed to split video and audio. Audacity will open many video formats and split the sound for you.
After a couple of passes at this, you’ll know what to avoid on your next show.