The Algorithmix NoiseFree is a DirectX/VST Plug-In that effectively removes broadband noise while still excellently preserving the audio quality of the original signal.
NoiseFree automatically removes or reduces any kind of constant background noise like hiss, surface noise, hum, air-conditioning equipment or camera sound.
Due to the Algorithmix proprietary, psycho-acoustically optimized noise reduction algorithm, NoiseFree efficaciously preserves timbre, ambience, and low-level details of the original signal, as well as highly reduces the appearance of artifacts.
On one hand, it can be used for high-resolution re-mastering tasks. On the other hand, it is a real weapon in cleaning up critical speech recordings for forensic purposes.
One very common problem in the daily business of an audio engineer is the struggle against a noisy signal. The standard methods of noise extraction by means of filters do not work if spectral components of noise overlap the desired signal. In such situations, the only solution is to use sophisticated signal processing algorithms to suppress unwanted noise in a much more intelligent way.
The NoiseFree DirectX/VST PlugIn effectively removes broadband noise from pre-recorded audio material. It has been designed to perfectly cover a wide range of applications: from the high-quality de-noising of valuable music treasures, to cleaning location recordings for film from environmental noise, even the treatment of critical forensic material recorded at a very poor signal-to-noise ratio and/or in reverberate environment.
Typical tasks for NoiseFree include removal of tape-hiss, surface noise of old records and optical soundtracks, broadcastwax cylinders, broadcast noise, microphone and preamp noise, as well as enhancement of conversations and interviews that lack intelligibility.
Unlike other systems, the NoiseFree DirectX/VST PlugIn works virtually without artifacts when using the correct settings for all parameters.
The de-noising process can work based on either the built-in white noise profile or a recorded noise profile. The unique Learn algorithm allows recording a noise sample from virtually any part of the audio material, even if there is no noise-only portion available. A sophisticated 5-band Noise Profile EQ is provided for modifying the shape of noise profiles and smoothing them for optimal performance.
Using only two sliders and a few presets you can get respectable results within minutes. The signal scope helps to properly adjust the Threshold. The unique Differ function allows monitoring of the signal part being removed in the de-noising process, which helps optimize the setup.
The advanced parameters Ambience, Recovery and Decorrelation allow fine tuning NoiseFree to differentiate between real noise and sharp signal transients. The Chase function, mainly designed for speech de-noising, automatically detects any fluctuations in the background noise and adaptively adjusts the noise profile according to these changes.
NoiseFree works impeccably with sampling rates up to 384 kHz. Thus it is perfectly suitable for high-resolution DSD post-processing. Since the CPU requirement for the NoiseFree DirectX/VST PlugIn is quite low, you can change and optimize all parameters while listening to the audio material in real-time.
Flawless operation with up to 384 kHz sampling frequency, thus perfectly suitable for DSD post-productionproprietary, psychoacoustically-optimized noise reduction algorithmvirtually no artifacts when using correct settings for all parametersretention of timbre, ambience and low-level details of the original signalautomatic removal or reduction of any kind of constant background noise like hiss, hum, camera sound and air-conditioning equipmentremoval of residual and surface noise from old 78 rpm and vinyl records remaining after de-clicking and de-crackling processnoise profile capture in two different ways:- for the de-noising of high-quality recordings from noise-only portion of the input audio material,- for time-saving tasks from any part of the input audio materialsophisticated noise profile modifierpossibility of creating artificial noise profiles just from flat noise using the noise profile modifierautomatic background noise chasing function for adaptive real-time de-noisingpre-defined processing profiles simplifying de-noising tasks in typical situationsclickless real-time parameter adjustment during playbackexpert parameters for minimizing the appearance of artifactsspectrum analyzer for real-time tracking of the de-noising processunique difference function for real-time audio monitoring of the noise being removedcomplete setup exchange among several simultaneously opened PlugInsvery effectively helps in cleaning up poor recorded dialogs or telephone cuts to be restored for forensic purposesextremely high internal calculation precision (double floating point - 80 bits)moderate CPU load, thus suitable for real-time multi-channel operationshort learning curve; good results within minutes with only two slidersautomatic latency compensation with Sequoia and Samplitude
removal of tape hiss and electronic noise from preamps and audio processorsde-noising after de-clicking and de-crackling of old records and optical soundtracksre-mastering old recordings to CD, SACD, or DVDcleaning up live recording from environmental noiseeliminating camera and air-condition noise from film and video soundtrackscleaning up poor recorded dialogs and telephone cuts to be restored for forensic purposesreducing noise from AM, short-wave, and FM radio, as well as TV soundreal-time operation with a turntable, tape deck, or radio receiverarchiving and restoration of historic audio material
Minimum configuration (one real-time DirectX/VST PlugIn loaded)
Windows 9x/Me/NT4/2000/XP Home or ProfessionalPentium II 500 MHz64 MB1024x768 pixels resolution with true color (24bit or 32bit)any compatible DirectX/VST Host EditorUSB port for hardware dongleSequoia/Samplitude 7.x, 8 allows fully automated PlugIn latency compensation
Recommended configuration (more than one real-time DirectX/VST PlugIn loaded)
Windows 2000/XP Home or ProfessionalPentium IV or AMD Athlon XP with at least 1.5 GHz512 MB1280x1024 pixels resolution with true color (32bit is usually fastest)any compatible DirectX Host Application like Sequoia 7.0, Samplitude 7.0, Pyramix 4.1, Wavelab 4.0, Cool Edit 2.0, Sound Forge 4.0 etc.USB port for hardware dongleSequoia/Samplitude 7.x, 8 allows fully automated PlugIn latency compensation