Picture Lock: Your Audio Post Checklist

You solo the dialogue. It sounds like it was recorded inside a metal lunchbox. You think, I’ll fix it later. But you are already deep into audio post, the issue is localized, and what you do now sets the tone for everything that follows. Audio is half the frame maybe not literally, but in importance. Here is how we approach the full audio finish at Final Stage Post House.

Clean Your Dialogue Like You Mean It

Start with the voice. That is your subject. Everything else is support. Use a high-pass filter to clear the low end. Sweep your mids to find and reduce boxiness. Apply light compression to even out the performance. Keep the voice panned center. It is exactly like isolating skin tones in a color grade: if the voice does not sit right, nothing else can.

Treat Wild Sound and Nat Sound Like Texture

This is your air and space the way a location breathes. Low-cut filters handle rumble and mic handling noise. EQ shaping brings forward the life in a sound or pushes distractions back. Pan it wide so it frames the voice instead of competing with it. Compress gently if levels jump around. Think of this like grain or halation: not perfect, just right. It sells the reality of the space.

Do Not Overlook Room Tone

Room tone is the sonic fingerprint of a space. It is not silence it is presence. There is always something: HVAC, vents, the shape of the space itself. If you recorded tone on set, use it. If not, generate pink, brown, or white noise, then filter it to match what the boom mic captured. A total absence of sound feels unnatural, like crushed blacks with no shadow detail. Room tone lifts the floor it is the pedestal your dialogue sits on.

Add Just Enough Sound Design

Support the story. Do not distract from it. Footsteps in key moments. Chair movement, door clicks, ambient shifts. Background elements that cue a change in emotion or time. This is like adding an atmospheric node in your grade nothing showy, just the thing that makes everything hold together. For a deeper exploration of sound design as a narrative craft, see The Emotional Frequency: How Sound Design Shapes the Narrative.

Place Sound in Space

Sound has depth. Use it. Keep the voice front and center. Let nat sound and design live behind and around it. Add reverb to push elements back. Pan music slightly wide or off-center to help balance the frame. Think of it like foreground, midground, and background in color grading: each element needs room. Stacking everything in the center flattens the story.

Shape Your Frequencies Like a Grade

Bass is your foundation. Highs are your clarity. High-pass filters clear unwanted low-end. Low-pass filters soften harsh highs. You are not just making things louder you are carving the mix to match the emotional tone of the piece. Just as in grading, each element has its own curve, and the relationships between curves create meaning.

Mix, Master, and Deliver with Care

For broadcast, target -24 LUFS. For online delivery, target -16 LUFS. Use a true peak limiter to keep things clean. Never clip. Test on headphones, speakers, and a phone everywhere the final piece might live. Consistency in audio loudness is the direct equivalent of brightness consistency across shots in a grade. For the full context of delivery standards, see Cranking Your Story Up to 11.

Frequently Asked Questions

What is the difference between -16 LUFS and -24 LUFS delivery targets?
-24 LUFS is the standard for broadcast television (ATSC A/85 in North America, EBU R128 in Europe). -16 LUFS is the approximate target for streaming and online platforms like YouTube and Vimeo. Delivering at the wrong level means the platform will automatically adjust your audio, often in ways that compromise your dynamic intent.

When should you use pink noise versus brown noise for room tone generation?
Pink noise has a gentle high-frequency rolloff that mimics the spectral character of many indoor spaces good for general rooms. Brown noise has a steeper rolloff and a deeper, warmer character, better for larger enclosed spaces or low-ambient environments. Filtering and blending both with actual captured room tone when available always produces the most convincing result.

Is audio post-production something a colorist-editor can do themselves?
For projects below broadcast delivery requirements, yes with the right workflow discipline and monitoring setup. The framework described here (dialogue first, then texture, then design, then mix) scales from solo editorial work to full post-house finishing. When broadcast or theatrical standards are required, a dedicated sound mixer should handle the final mix.

Source: You Locked the Picture. Now What? Rodrigo Perez-Segnini on LinkedIn

Need a full post finish that handles both color and audio with the same level of craft? Connect with Final Stage Post House.