There's a costeffective upgrade path for existing SoundSoap Pro customers, and SoundSoap Pro 2 is also now included in the Peak Pro XT 6 bundle.
To minimise this problem in real life, it would be practical to copy 30 seconds or so of the audio to the front of the file to allow SoundSoap Pro 2 to stabilise before it reached the wanted section of audio.
Real audio is constantly changing but noise tends to be either reasonably constant or slowchanging, viec lam nhanh tai da nang 2013 so by taking a long enough sample, the algorithm can make a reasonable prediction as to what is noise and what is wanted audio.
The capture time will vary depending on the material, so in some systems the software decides how much audio it needs to 'see' to get a reliable result but gives the operator the option to change this if necessary.
This program was originally developed by bias Inc.As well as the automatic ANR adaptive noise reduction, there's also an adaptive noise Extraction mode that requires some adjustment by the user, the purpose of which is to extract a noise profile from an audio track with no exposed noiseonly sections.The results were very similar for each of the plug-in and could have been improved by using a more gentle setting and multiple passes.Note that physical damage to the media such as vinyl scratching usually corrupts the audio for more samples than digital errors, and so is more difficult to repair.Start with the Smooth control at maximum, and only decrease it if there are distinct notes or tones in the noise, as lower values of Smooth will allow the noise profile to follow the bumps created by the notes or tones.To eliminate only DC offset, set the frequency control at around 10Hz.
You will see Debuzz 'tune in' and 'lock on'.
For each example, I have included the original untreated file and then three treated versions, with the relevant postscript to the file name to indicate which package it was treated with.
The Repair control helps to put some of the harmonics back into the sound.Waves' Restoration Bundle has been round the longest of the three packages on test, and is available either as a native bundle supporting all the major formats, or as a TDM bundle supporting HD cards and htdm host-based processing.The Restoration Bundle is made up of four separate plug-in modules.Fingerprint Capture Mode is Sony's 'learn' mode and is achieved by pressing the Auto and Adapt buttons, then playing a section of 'noise only' audio.The clear benefit of this method is that you can work on audio that has been trimmed to remove any noiseonly sections.If you can hear the noise removal working in Auto mode, therefore, it is worth also adjusting the Offset control to bring the threshold down a bit, so you can set the subjective best balance between minimising the noise and changing the character of the audio.The Learn button, normally used to create a profile from a noiseonly segment, changes to 'Extract' when the Adaptive button is on, and it is this that gives access to the Extract mode of operation, where an average noise fingerprint or profile is extracted from a section.