| Algorithmix ScratchFree Details
The ScratchFree™ DirectX/VST Plug-In effectively removes clicks and crackles from old vinyl and shellac (78 rpm) records and cleans up audio recordings tainted by switching noise, static discharge, digital cross-talk, or thyristor buzz.
Unlike other systems, the ScratchFree™ DirectX/VST Plug-In works virtually without artifacts when using correct settings for all parameters. It includes an excellent de-cracklingalgorithm preserving timbre, ambience, and low-level details in the original signal.
The de-scratchingalgorithm consists of two main parts: the de-clickingmodule and the de-cracklingmodule. While the de-clickingmodule is used to remove severe clicks from old shellac and vinyl records or switching noise originating from cross-talk or improper setups of digital audio equipment, the de-cracklingmodule removes any remaining small clicks and crackles.
ScratchFree™ is extremely easy to use. With only three sliders and a few preset buttons you can get respectable results within minutes.
The signal scopehelps you to find ideal settings for the DeCrackler. The advanced parameters Width, Smooth, and DePlop are useful for minimizing the appearance of artifacts. The unique Differ feature allows intuitive parameter settings. You can switch between the output signal and the input/output difference, i.e., the part of input signal removed by the de-scratching algorithm. Normally, this differential signal should not contain any audible parts of the original audio material that you want to preserve.
ScratchFree™ provides pre-defined application profiles (Type). They preset the internal parameters and external advanced parameters to help you in typical restoration situations: digital spikes, shellac (78 rpm) or vinyl. In addition to its main application, the removal of clicks and crackles, the ScratchFree™ DirectX/VST Plug-In effectively diminishes any kind of distortion caused by signal overload (Clipping).
Since the CPU requirement for ScratchFree™ is very low, you can adjust and optimize all parameters while listening to the audio in real-time.
Algorithmix ScratchFree Features
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flawless operation with up to 384 kHz sampling frequency, thus perfectly suitable for high-resolution DSD post-production
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effective removal of severe clicks from old shellac (78 rpm) and vinyl records
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detection and removal of switching noise, static discharge, digital cross-talk, and thyristor buzz
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an excellent excellent de-crackling algorithm preserving timbre, ambience, and low-level details in the original signal
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reduction of distortion caused by signal clippingpre-defined processing profiles simplifying restoration tasks in typical situations
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clickless real-time parameter adjustment during playback
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expert parameters for minimizing the appearance of artifacts
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virtually no artifacts when using correct settings for all parameters
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signal scope for real-time tracking of the de-crackling process
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unique difference function for real-time monitoring of the disturbances being removed
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complete setup exchange among several simultaneously opened PlugIns
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extremely high internal calculation precision (double floating point - 80 bits)
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moderate CPU load, thus suitable for real-time multi-channel operation
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automatic latency compensation with compatible DAWs (e.g., Sadie, Wavelab, Cubase, Soundforge)
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short learning curve; good results within minutes with only three sliders
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