time-saving, high-resolution audio repair processor freeing problematic
live recordings from unwanted tenacious audio disturbances
reNOVAtor helps when all other audio tools and editing tricks
It can eliminate disturbing audio events while perfectly preserving
the sound quality of your original material, because every spectral
modification is executed in linear-phase domain.
This is a extremely time-saving tool for mastering or post-production
engineers struggling with disturbing noises in live recorded music,
interviews or film sound.
If squeaky chairs, coughs, performance noises, falling keys or ringing
cell phones make your recording unacceptable, take reNOVAtor!
Imagine that during a music festival you recorded a unique live performance
in a concert hall or church. After checking the recorded material in
your studio before production and mastering you decide the recording
was successful in general, except for a few annoying disturbances during
some quiet passages: somebody's cough, a squeaky chair, the horn of
a passing truck, a bell from the neighboring clock tower. In addition,
despite the exceptional artistic interpretation there were a few significant
errors: a loud scratch in the part of violin soloist and one too early
tone in the brass section.
All this makes your recording unacceptable and, of course, the concert
cannot be repeated. As an experienced tonemeister, you know very well
that all traditional techniques and tricks fail when you try to remove
the disturbances mentioned above. In these cases any kind of traditional
equalization or sophisticated editing methods is usually time consuming
and causes discontinuities or at least audible changes in level and
timbre of the desired signal and ambience. You will say “no way” and
close the project.
That was yesterday. Today, we at Algorithmix are proud to unveil the
, our unique solution. In such hopeless situations,
successfully rescues problematic live recordings from
extraneous sounds and unwanted audio disturbances. You will be amazed
by the high sound quality of the repaired section and how quickly it
How it works
is a tool for repairing audio material distorted by unwanted audio events without affecting the audio signal we want to keep, even when disturbances overlap with the signal of interest.
uses several unique denoising techniques developed by Algorithmix between 1997 and 2001. The selected part of an audio signal including disturbing sounds is first converted to its spectral representation and mapped to a color-coded spectrogram. Then the algorithm determines the amplitudes of each spectral beam at the edges of marked area and calculates parameters for a denoisig process working on each single beam within the selection. The user can control the overall behavior of the noise remover using global parameters determining denoising thresholds for the disturbances in each spectral beam of the processed area. It works like an adaptive linear-phase multiband compressor (up to 16384 bands) or an inverse noise gate, following psychoacoustic model of masking. The noise removal may even be restricted to certain gain ranges within the selected area, which is very useful if only certain components of the signal need to be treated (e.g. a specific harmonic). Functions for automatic detection of clicks and spikes, as well as identification of tones and harmonics are also provided.
Easy to handle
Working with the reNOVAtor
is easy and intuitive. It loads and
analyzes the requested part of audio material you've chosen and displays
the result as a 3D spectrogram with time on the horizontal axis, frequency
on the vertical axis and amplitude of the spectral components color-coded.
The color assignment follows the order of the rainbow: red and yellow
for low energy; green and blue for middle energy; and finally purple
and white for high energy. After getting some experience, this 3D spectrogram
representation allows a good feeling for localization and identification
of sudden unwanted acoustical events. The spectral area of interest
can be precisely marked with a resizable rectangular window. In addition,
the whole PlugIn window is scalable and the spectrogram inside zoomable
allowing sound repairing with surgical precision.
AlgoEdit – the editor for reNOVAtor stand-alone
has been continuously supported by more and more DAWs.
If your editing system does not include the reNOVAtor
interface yet, we recommend using it with the provided practical stand-alone
. This easy-to-use and reliable editor allows
audio repair and enhancement with the reNOVAtor
without the need
of an external audio editing system. It also provides a unique, very
useful function: it can create the difference between original input
and processed output signal, i.e. exactly the part of the signal that
has been removed. Taking advantage of this feature, allows you to optimize
parameter setup and avoid touching the desired part of the audio material.
It is also possible to replace any part of the over-processed audio
material by the original signal without the necessity to go through
all undo steps.