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5 Tips to Capture a Great Voiceover for Vlogging

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Thereâs no question that vloggers, specifically those who broadcast on Youtube, are quickly replacing the traditional print and television tastemakers of yesteryear. Swing an axe at any topic from Youtubeâs search bar and youâll hit dozens if not hundreds of videos boasting a familiar set up: an animated host in front of a webcam. If youâre an aspiring makeup tutorial artist, comic book film reviewer, or someone that wants to opine on your favourite niche subject, youâll want to drive engagement and build relationships with great looking, and importantly, great sounding content.
This means capturing a stellar voiceover at the source: a great-sounding, well placed mic in a quiet room will usually lead to a voiceover that you wonât have to spend too much time editing after youâve recorded it.
I should know. I run a Youtube channel devoted to composing for film, and if my voiceover audio is problematic, the comments section will light up. Iâve learned lot about getting great audio at the source and want to share some tips on how you can keep the audio production quality high for your Youtube audience.
1. Â Location! Location! Location! (of your mic)
Great mic placement is paramount. But where should the mic be in relation to your mouth?
Make a fist. Now extend your thumb and pinky finger only. The distance between those fingers is how far your mouth should be from your microphone, give or take an inch. Placing your mouth said distance will mitigate the occurrence of plosives (bursts of air which cause the mic to clip) and sibilance (stressed consonants that produce a hissing sound).
I usually take the extra step of placing a pop filter ahead of my mic, (always off-axis, or âtiltedâ on an angle from the microphone to minimize reflections). Adding a pop filter to an already well-placed microphone will ensure that sure few if any bursts of air hit my microphoneâs diaphragm and cause a plosive. Â
Finally, I like to bring my microphone up to my chest level and then angle it slightly towards the computer monitor (while observing the thumb-to-pinky rule). This keeps it out of view from my mouth when Iâm vlogging and generally off-camera altogether. For a visual reference of the angle iâm describing, take a look at any TV press conference, where the mics are angled up at the speaker on a podium.
2. Â âKnow thy recording space.â âEngineering Gods
Most of us donât get to vlog from a million dollar mastering room, so we owe it to our audiences to capture audio from a space thatâs as quiet as possible. In my own apartment, Iâve learned to be strategic about when I start vlogging. I avoid recording early in the morning or around 5:00 p.m. â 6:00 p.m., as thereâs hustle and bustle in the hallways from people going to and from work (footsteps, doors closing, keys jangling, noisy animals wishing their owners farewell).
Every building has a rhythm and after a few weeks in any space, the optimal recording times will become apparent. To that end, itâs important to close balcony doors and windows to seal-out environmental noise.
3. Â Chill Your Keys
This is a classic audio engineerâs trick: unplugging the fridge and placing your keys, or something youâll need later in the day, next to the milk carton to make sure you remember to turn it back on. Whatâs behind this seemingly odd practice? A fridgeâs components can produce intermittent ambient noise that might not be immediately apparent to a vlogger (especially if you wear headphones, as I do, when you vlog to avoid spill from your computer speakers). A sensitive microphone, like a large-diaphragm condenser, can pick this noise up and lead to unexpected post production work you might not have time-budgeted for.
4. Â Arm Yourself
Just as it's important to mitigate environmental noise, vloggers need to make sure the noise their own body can produce is protected from the microphone. Ever listen to a podcast or a vlog and you can hear rumbles or thumping noises that donât sound like theyâre emanating from the presenterâs voice? The culprit is usually some finger tapping, leg crossing, rustling, typing, thatâs being scooped up from a microphone that isnât holstered in something that isolates it from the presenter.
This is why itâs important to use a broadcasting arm (or some such apparatus) as well as a shock-mount to isolate the microphone from any sympathetic noise from vibrations emanating from you, the vlogger. To that end, itâs important that you donât adjust the broadcasting arm too forcefully when youâre speaking as itâll no doubt be picked up by the mic!
5. Â Polarize Your Content
Every microphone has a polar pattern or multiple polar patterns to choose from, which can affect the quality of your voiceover recording. How do microphone polar patterns work? Imagine youâve got a flashlight. When youâre in the dark and you switch it on, it shoots a beam of light directly in front of you and a little to each side. What Iâm describing is essentially a cardioid polar pattern, the most common form of polar pattern available in most microphones.
Another popular pattern is a âfigure eightâ or bi-directional polar pattern. If weâre sticking with the flash light metaphor, this would be like having a flash light that shot a âcardioidâ beam of light from each end. Kind of like Darth Maulâs lightsaber.
So you might be wondering..why does this polar pattern stuff matter? Novice vloggers might not be aware that their microphone is switched to a polar pattern thatâs adding environmental noise to their voice-over. For example, our computers and hard drives make all kinds of noise, and if our microphone is set to a âfigure eightâ polar pattern this means itâs capturing your voice and computer whirring/bleeps/bloops (all scientific terms). Switching it to cardioid will reject this noise and leave the âbeamâ focused on your voice.
Closing Thoughts
At iZotope, we know that even when all precautions are taken to capture a great vlogger vocal noise can still leak through, which is why weâve create RX, our post-production, audio repair software. That being said, getting things right at the source will ensure that youâre spending less time editing after youâve captured your audio and more time plotting your next viral rant!