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
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
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.