Easily remove high frequency buzz and noise in recordings using iZotope's RX audio repair software.

Cell phones ringing at a violin recital. Door hinges squeaking during an interview. Traffic noises interrupting on-location dialogue.

These are just a few examples of “intermittent noise,” a term that includes a wide range of intrusive sounds that don’t fall into the steady-state or impulse categories.

Izotope Rx Rf Interference Squeaks

In this blog post, we’ll review some common audio problems that tend to occur suddenly and last for a short duration, and we’ll look at ways to address them using RX’s various audio repair options. (To learn more about the subject, read our blog about removing audio dropouts and gaps.)

Removing Intermittent Noises

Izotope Rx Rf Interference Squeak 1

Intermittent noises are especially hard to repair for several reasons:

Izotope Rx 7 System Requirements

• Wildly unpredictable in frequency and timing
• Time-consuming to fix
• Can’t be removed with an automated process (unlike broadband noise, hum, clicks, and crackles)
• Leave artifacts and/or damage the original audio when removed by most traditional audio-editing tools

Izotope Rx Elements

Fortunately, RX includes a number of ways to remove these noises.

Step 1

Izotope Rx 8

Begin by identifying the unwanted noise via the spectrogram. Using the selection tools, isolate the noise as precisely as possible. You can either draw a freehand selection around the edges of the unwanted audio, or use the Magic Wand tool in RX 4 to make the selection automatically.