iZotope ANR-B: adaptive hardware noise reduction unit


iZotope have stretched from software into hardware and showed their noise reduction unit ANR-B at NAB. I’ve talked about it before but up until now only a prototype has been shown.

From the iZotope press release

ANR-B uses iZotope’s advanced noise reduction technology to intelligently identify and suppress environmental broadband noise, hum, phone line artifacts and more, dramatically increasing the quality of audio broadcasts involving radio call-in programs and on-location broadcasting. Unlike other noise reduction solutions, iZotope’s ANR-B actually detects noise in real-time and adapts to changing noise over time, allowing for automatic operation with little to no input required from the user.

Key Features

  • Automatically removes noise from audio in real-time
  • Two channels can work independently or as a stereo pair
  • Includes presets for specific scenarios
  • Residual Noise switch lets user quickly preview the noise being removed
  • Single knob controls noise suppression on each channel for fast operation
  • Learn button allows for manual operation by capturing a noise profile
  • PC/Mac interface for managing presets and designing advanced programs
  • Remote control capability


  • Power – 110/220 VAC, 50/60 Hz
  • LAN – (PC/Mac host connection)
  • Analog Audio – Balanced XLR, Conversion: up to 24-bit, 96KHz, Output +4 dBu
  • Digital Audio – AES-EBU, Impedance: 110 ohms, Interface: Balanced, transformer coupled
  • Sync – DARS, AES-EBU

So what’s the catch? For some probably the price: $4995 MSRP. It will be available this summer.


Originally posted on April 14, 2008 @ 11:03 am

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