Izotope Rx: Isolate overlapping dialogue using spectral editing

Izotope Rx Try it →Watch full video →iZotope, Inc. · Aug 2025

Demo summary

Evan Benjamin demonstrates removing an overlapping 'S' sound from one actor's track to allow a clean transition to a different take, using iZotope RX to surgically delete the unwanted vocal artifact.

Step-by-step

Identify the overlapping vocal artifact in the spectral view
Select the 'S' sound or unwanted dialogue frequency using the selection tool
Locate a section of neutral room tone from the recording
Replace the unwanted vocal artifact with the neutral room tone to delete the sound
Layer the clean take from the second actor over the edited track

Watch out for

This process will mutilate the original audio of the person being edited out
The technique only works if you have a clean take from the other actor to layer on top

Tips

Learn to visually detect what an 'S' looks like in the spectral display to find artifacts faster
Use this method to avoid having actors come in for ADR

Highlights

“after a while you can really detect what an S looks like”

All demos from “Sound design secrets: How RX rescues dialogue on FX's The Bear | iZotope”

13:532:04Remove dolly creaks with iZotope RXDialogue editor Evan Benjamin demonstrates how to identify and remove mechanical dolly creaks from a recording by copying neutral room tone and pasting it over the noise anomalies in the RX spectral editor while maintaining sync.Izotope Rx· AI Audio Enhancer & Noise Reduction
16:121:20Generate clean room tone in iZotope RXThe editor shows how to create a usable loop of neutral room tone from noisy production audio by identifying small clean segments and pasting them over breaths and rustling sounds.Izotope Rx· AI Audio Enhancer & Noise Reduction
17:361:37Isolate overlapping dialogue using spectral editingCurrentEvan Benjamin demonstrates removing an overlapping 'S' sound from one actor's track to allow a clean transition to a different take, using iZotope RX to surgically delete the unwanted vocal artifact.Izotope Rx· AI Audio Enhancer & Noise Reduction
Watch “Sound design secrets: How RX rescues dialogue on FX's The Bear | iZotope” →

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