Tag Archives: Digital Audio Workstation

Announcement: ATKStereoLimiter 1.0.0

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I’m happy to announce the release of a stereo limiter based on the Audio Toolkit. They are available on Windows and OS X (min. 10.8) in different formats.

This stereo plugin limits both channels by getting the max of the instantaneous power of them and applying a limiting gain function on them. There is no oversampling inside the plugin, so the output signal can overshoot.

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Announcement: ATKSideChainCompressor 2.0.0 and ATKSideChainExpander 2.0.0

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I’m happy to announce the update of the side-chain stereo compressor and expander based on the Audio Toolkit. They are available on Windows and OS X (min. 10.8) in different formats.

These stereo plugins can work on two channels, left/right or middle/side, possibly in linked mode (only one set of parameters), and can be set up to mix the input signal with the compressed signal (serial/parallel compression). The side chain channels can be used to steer the gain stage (the same setup will be used, right/left or middle/side), depending on the switch on the top right of the plugins. The same coloration stage than ATKColoredCompressor and ATKColoredExpander are used here.

This effectively makes ATKStereoCompressor obsolete, as the compressor can be set up in the same conditions as ATKStereoCompressor.

These new versions have more parameters than the previous ones, which means that the parameters used in a project with the former version won’t be loaded in the same way for these new versions.

Continue reading Announcement: ATKSideChainCompressor 2.0.0 and ATKSideChainExpander 2.0.0

Announcement: ATKColoredCompressor 1.0.0 and ATKColoredExpander 1.0.0

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I’m happy to announce the release of a colored compressor plugin as well as a colored expander plugin based on the Audio Toolkit. They are available on Windows and OS X (min. 10.8) in different formats. They are effectively replacing the ATKCompressor and ATKExpander plugins by adding several new parameters: RMS filter (set it to 0 to get peak detection from the old plugins), color (gain change around the threshold, positive color adding gain and negative color removing gain), quality (affecting the coloring on a smaller or bigger area around the threshold). The expander also has a maximum reduction parameter, allowing the user to specify the maximum amount of gain reduction below the threshold.

Continue reading Announcement: ATKColoredCompressor 1.0.0 and ATKColoredExpander 1.0.0

Announcement: ATKChorus 1.0.0 and ATKStereoPhaser 1.0.0

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Yet another plugin announcement, I’m happy to announce the release of a chorus plugin as well as a stereo phaser plugin based on the Audio Toolkit. They are available on Windows and OS X (min. 10.8) in different formats. The chorus plugin is based on a variable delay filter driven by a random delay signal, and the stereo phaser morphs a mono signal in a stereo phased pair.

Continue reading Announcement: ATKChorus 1.0.0 and ATKStereoPhaser 1.0.0

Announcement: ATKUniversalVariableDelay 1.0.2 and ATKUniversalDelay 1.2.0

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I’m happy to announce the release of a variable delay plugin and an update to a fixed delay plugin based on the Audio Toolkit. They are available on Windows and OS X (min. 10.8) in different formats. The variable delay plugin allows to define a delay based on a sinusoid (mean delay, delay amplitude and frequency) and mix it with feedback and forward signals. The fixed delay plugin allows a fixed delay (up to a second). Both plugins can run at 192kHz.

Continue reading Announcement: ATKUniversalVariableDelay 1.0.2 and ATKUniversalDelay 1.2.0

Announcement: ATKSideChainExpander 1.0.1

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I’m happy to announce the release of a side-chain stereo expander based on the Audio Toolkit (yes, after a compressor it is time for an expander!). It is available on Windows and OS X (min. 10.8) in different formats. This stereo expander can work on two channels, left/right or middle/side, possibly in linked mode (only one set of parameters), and can be set up to mix the input signal with the compressed signal (serial/parallel compression). The side chain channels can be used to steer the gain stage (the same setup will be used, right/left or middle/side).

Continue reading Announcement: ATKSideChainExpander 1.0.1

Announcement: ATKSideChainCompressor 1.0.0

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I’m happy to announce the release of a side-chain stereo compressor based on the Audio Toolkit. It is available on Windows and OS X (min. 10.8) in different formats. This stereo compressor can work on two channels, left/right or middle/side, possibly in linked mode (only one set of parameters), and can be set up to mix the input signal with the compressed signal (serial/parallel compression). The side chain channels can be used to steer the gain stage (the same setup will be used, right/left or middle/side).

Continue reading Announcement: ATKSideChainCompressor 1.0.0

Audio Toolkit: Anatomy of a middle-side compressor

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Sometimes images are worth a thousand words, so let’s look at some pictures of a middle-side compressor behavior.
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Book review: Designing Audio Effect Plug-Ins in C++: With Digital Audio Signal Processing Theory

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When I looked for an audio signal processing book, I found the classic DAFX: Digital Audio Effects, but the code is mainly Matlab. Was there a book with C++ examples? That’s how I found out about this book from Will Pirkle.

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Announcement: ATKStereoCompressor 1.0.0

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I’m happy to announce the release of a stereo compressor based on the Audio Toolkit. It is available on Windows and OS X (min. 10.8) in different formats. This stereo compressor can work on two channels, left/right or middle/side, possibly in linked mode (only one set of parameters), and can be set up to mix the input signal with the compressed signal (serial/parallel compression).

Continue reading Announcement: ATKStereoCompressor 1.0.0