Acon Digital Mastering Suite consists of five plug-ins for audio mastering that were designed for ultimate signal transparency:

Dynamics is a combined compressor, expander or gate. The look-ahead can be set anywhere from 0 to 30 milliseconds and the intelligent algorithm ensures a band-limited gain signal which reduces potential distortion to a minimum even with minimal attack and release times. You can use up to 4 times oversampling to further reduce distortion. The side chain signal can be either internal or external and there’s a full blown side chain equalizer integrated with low cut, low shelf, peak, high shelf and high cut filters. The complexity of algorithms is not reflected in the intuitive user interface which provides graphical visualizations of all aspects of the processing.

Multiband Dynamics is the multiband extension of Dynamics which allows dynamic processing in up to four separate bands. You can freely set the cross-over frequencies and even the filter slopes can be set freely in the range 6 and 48 dB per octave. Multiband Dynamics operates in linear phase mode to avoid phase issues between the processed bands.

Limit is a transparent limiter with intelligent look-ahead in the range 0 to 30 milliseconds that reduces distortion to a minimum. The limiting is performed in a two step process with a pre-compressor follower by the actual peak limiting algorithm. You can use up to 4 times oversampling for true peak limiting and to further reduce distortion.

Equalize is a parametric equalizer. Unlike other equalizers, you can freely adjust not only center frequency, gain and bandwidths, but also the filter slope for each band. The filter slope can be set anywhere from 3 dB to ultra-sharp 120 dB per octave. You can operate Equalize as a zero latency plug-in when using the minimum phase mode, choose to preserve the phase relationships in the linear phase mode or use the unique mixed phase mode. The mixed phase mode allows you to set the latency freely in the range 5 to 120 milliseconds while preserving the phase relationships as far as possible. That gives a unique control over potential pre-ringing artifacts which is a common problem with linear phase filtering.

Dither is a dithering plug-in with flexible perceptual noise shaping. You can adjust the maximum gain and the filter length of the frequency response of the noise shaping filter is visualized graphically.

Acon Digital Mastering Suite is available in 32 and 64 bit versions, as VST, VST3 or AAX for both Windows and OS X or as AU plug-ins for OS X.

Features

Platforms and Plug-in Formats

Available as VST, VST3 or AAX plug-ins on PC (Windows)
Available as VST, VST3, AAX or AU plug-ins on Apple Macintosh (OS X)
Native 32 bit or 64 bit versions of all plug-ins are available
Supports sampling rates up to 96 kHz
Supports multi-channel audio up to 7.1 surround

Acon Digital Dynamics

Intelligent look-ahead algorithm that reduces distortion to a minimum
Latency and look-ahead can be set anywhere between 0 and 30 milliseconds
Powerful side chain filtering with full EQ section — low cut, low shelf, bell, high shelf and high cut filters
Oversampling up to 4X
Threshold and ratio can be adjusted directly in the level history curve or using knobs
Acts as a compressor for ratios over 1:1 and as an expander or gate for ratios below 1:1
Adjustable soft knee specified in dB
Adjustable attack, hold and release times specified in milliseconds
Channel linking can be set between 0 (no link) and 100% (all channel share the same gain control signal)
Adjustable make-up gain specified in dB with optional automatic mode

Acon Digital Multiband Dynamics

Dynamic processing in up to four separate frequency bands
Spectral analyzer with frequency band indicators, freely adjustable cross over frequencies and freely adjustable filter slopes
Intelligent look-ahead algorithm that reduces distortion to a minimum
Threshold and ratio can be adjusted directly in the level history curve or using knobs
Acts as a compressor for ratios over 1:1 and as an expander or gate for ratios below 1:1
Adjustable soft knee specified in dB
Adjustable attack and release times specified in milliseconds

Acon Digital Limit

Intelligent look-ahead algorithm that reduces distortion to a minimum
Pre-compressor stage with adjustable attack and release times specified in milliseconds
Channel linking can be set separately for pre-compressor and peak suppression with values between 0 (no link) and 100% (all channel share the same gain control signal)
Oversampling up to 4X for true peak limiting
Graphical history curve showing level and gain reduction for the past 5 seconds

Acon Digital Equalize

Up to twelve equalizer bands
Eight different band filter types (low cut, low shelf, peak, tilt, bandpass, notch, high shelf and high cut)
Band frequency, gain, bandwidth, resonance and filter slope is freely adjustable for each band
Three different filter modes, minimum phase, linear phase or the novel mixed phase
Adjustable latency and pre-ringing time in mixed phase mode
Zero latency in minimum phase mode
Channel mode (mid, side, left, right or full processing) can be set independently for each band
Multiple selection of bands
Resizable graphical user interface
Solo and bypass modes
Optional automatic make-up gain
Optional gain to bandwidth linking
Two spectrum analyzers that can analyze the input or output signal from the mid, side, left or right channel
Graphical visualization of the equalizer frequency response
Preset manager and a large number of factory presets
Save, load and categorize user presets

Acon Digital Dither

Triangular Probability Density Function (TPDF) dithering
Physcho-acoustic noise shaping filter with adjustable filter length and maximum filter gain
Graphical representation of the noise shaping filter’s frequency response
Supported target bit depths: 8, 12, 16, 20 and 24 bits

Requirements

PC Version (Windows)

Windows 10 / 8 / 7
Intel Core i3 or AMD multi-core processor (Intel Core i5 or faster recommended)
1366 x 768 display resolution (1920 x 1080 or higher recommended)
1 GB RAM (4 GB or more recommended)
1 GB free HD space
A host application that is compatible with VST, VST3 or AAX (Pro Tools 10.3.5 or higher)

Macintosh Version (OSX)

OS X 10.8 or later
1 GB RAM (4 GB or more recommended)
1 GB free HD space
A host application that is compatible with AU, VST, VST3 or AAX (Pro Tools 11 or higher)