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CEDAR DNS2 Dynamic Noise Suppression

Portable and simple to use, the DNS 2 is designed for live and location sound use. It eliminates traffic noise, air conditioning, wind, rain and general background noise. It also helps to compensate for unfavourable acoustic conditions and poor microphone placement, and will suppress excessive reverberation.


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CEDAR’s dialogue noise suppression (DNS) technology eliminates traffic noise, air conditioning, wind, rain, babble and general background noise from audio signals. It will also help to compensate for unfavourable acoustic conditions and poor microphone placement, and will even suppress excessive reverberation.

The 2-channel DNS 2 is the first DNS designed specifically for portability and extreme simplicity of use. It hosts a new DNS algorithm that requires nothing more than switching on the Learn function that identifies and adapts to the background noise, and then dialing in the amount of noise attenuation required. Retaining the near-zero latency of all its predecessors, it’s suitable for use in all situations – location recording, live-to-air broadcasting, live sound in venues such as theatres, concert halls, conferences venues, and places of worship, as well as studio work and post.

What’s more, despite being so small and light that you can slip it inside your pocket or equipment bag, the DNS 2 offers analogue line and microphone inputs (the latter with optional 48V phantom powering), an AES3/AES11 digital input, and both analogue and digital outputs. This increases its flexibility even further, and its 12V power input means that you can use it in the middle of a field as easily as in the studio or the edit suite.

DNS2 Left Hand Panel
DNS2 Right Hand Panel

Key features of the DNS 2

Small, light and portable
A unique DNS algorithm with super-fast setup and control
Analogue (mic/line) and digital I/O
12V power


Two linkable channels of CEDAR DNS
Fully automatic processing in Learn mode
Floating point processor, 2.4 GFLOP/s, 40-bit resolution
Digital input and output (AES3)

Balanced analogue line inputs and outputs

Nominal level: +4dBu with 20dB headroom
Gain range: -6dB to +54dB
Dynamic range: > 102dB


8VDC to 17.5VDC (nominal 12V)
Power consumption: 4W typical, 6W maximum
Mains operation (85VAC – 250VAC) via supplied adapter

AD/DA conversion

24-bit resolution
Sample rate (internal sync.) 48kHz
Sample rate (external sync.) 44.1kHz, 48kHz, 96kHz

Ultra low-noise microphone preamplifiers

Gain range: +18dB – +78dB
Dynamic range: >102dB (at 36dB gain)
Individually switchable phantom power


Dimensions: 164mm x 110mm x 44mm
Weight: <500g