Sonnox Oxford DeNoiser - Wide Band Noise Removal Plug-In (Native) Software (Download)

Product Description

The Sonnox Oxford DeNoiser is a plug-in that removes wide-band noise from audio material using techniques based around the concept of a “noise profile”. The noise profile is used to gate-out components of the frequency spectrum that are below it, while keeping the components that are above it.

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This item is non-cancelable & nonreturnable.

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Description

The Sonnox Oxford DeNoiser is a plug-in that removes wide-band noise from audio material using techniques based around the concept of a “noise profile”. The noise profile is used to gate-out components of the frequency spectrum that are below it, while keeping the components that are above it.

The plug-in uses several methods to arrive at an appropriate noise floor. Auto, freeze and manual. It also contains a dedicated DeHisser section before the broadband noise-removal section. This can be used on audio such as dialogue where there isn’t a lot of high frequency content that needs preserving, and where the priority is to reduce the hiss to an acceptable level.

A Mid/Side mode allows for de-noising only the Side channel, resulting in mono operation beings entirely unaffected while stereo operation produces a cleaner stereo image without affecting the center. This is particularly useful in broadcast where switching between stereo and mono should not cause a noticeable change in dominant noise content.

Often de-noising can make the material sound a little flat compared with the original. The Oxford DeNoiser has a “Warmth” control in the output section that can quickly add some richness back into the program material.

Auto Mode

  • The frequency spectrum of the signal is examined automatically to acquire the general shape of the noise threshold profile by looking for consistently present levels in the frequency spectrum
  • The threshold is relative to the general signal level and therefore noise removal will always be a fixed number of dBs below the actual signal

Freeze Mode

  • Method to arrive at a noise profile by freezing the automatic noise profile and using that fixed profile going forward
  • Useful for capturing the profile from a section of material containing only background noise and then applying it to the rest of the material
  • The threshold is always set to remove the correct level of noise from the material, so as the level of the program material climbs the noise removal is less destructive

Manual Mode

  • User manually specifies a simple “Colored” noise profile, using the Color and Air controls
  • Color adjusts the shape of the noise-profile from white to red noise
  • Air modifies the high frequency shape of the noise-profile

Additional Controls

  • Ability to adjust the threshold of the noise-profile at different frequencies by means of a bias curve
  • Additional bias curve to adjust the amount of reduction at various frequencies allowing more noise removal at some frequencies while still being gentle at other frequencies
  • Both bias curves work in all three modes
  • Further manipulation of the detect threshold and reduction amount is available in the form of the Smooth and Tune controls
  • Option available to listen to the “Diff” signal (difference between the input and the processed output), useful to ensure that “good” audio is not removed from the output signal

DeHisser

  • DeHisser section before the broadband noise-removal section
  • Can be used quite aggressively on audio such as dialogue where there is not a lot of high frequency content that needs preserving, and where the priority is to reduce the hiss to an acceptably clean level

Mid/Side Mode

  • Mid/Side operation mode causes the plug-in to de-noise only the Side signal content of the Left-Right signal, leaving the Mid content alone
  • The Left-Right signal is first converted to Mid-Side, the Side de-noised and then the signal is converted back to Left-Right
  • Particularly useful in broadcast where switching between stereo and mono should not cause a noticeable change in dominant noise content

Sweetening

  • In some circumstances, having removed the noise it is desirable to add something back to the signal that has been taken away
  • For example, the act of de-noising can make the material sound a little flat compared with the original
  • “Warmth” control in the output section can quickly add some richness back into the material