HoRNet SyncPressor

A compressor that goes along with your track

SyncPressor is a dynamics processor designed for the master bus, it’s a collaboration between HoRNet Plugins and Antonio Porcelli, a top Italian  mixing engineer and it’s a plugin that aim to provide “glue” to your mix while being transparent.

The effect is accomplished using a simple assumption: the compression moves dynamically with  the track so attack and release time should be set according to the track’s tempo, for this reason in SyncPressor you will not find the usual attack and release knobs, but two dropdown that use time divisions relative to the compressor’s internal tempo, which in turn can be synched to the DAW, set manually or automatically detected from the audio.

With this trick the time constants of the compressor will always be set to a useful amount for your track and will never work “against” it.

HoRNet SyncPressor can also work as a track compressor, so you get the usual compressor settings with variable knee, RMS mode, feedback processing, external sidechain and an HP filter on the sidechain detector (both internal and external).

Another master bus specific option is the ability to “unlink” left and right channels in the internal detector so that the compressor actually works like a “dual mono” processor compressing left and right channels individually; this trick gives you a wider stereo image and it’s one of secrets for a high level mix.

Finally a dry/wet control allows you to mix back some of the “clean” unprocessed signal and a “tempo multiplier” setting lets you double or halve the attack and release times to quickly try out different combinations.

HoRNet SyncPressor uses a fully hardware accelerated GUI using OpenGL on windows and Metal on macOS so the CPU is left for audio processing.


The demo is fully functional except for the fact that every now and then it will silence out, you cannot save parameter values with your session and the plugin will not respond to automation coming from the host.


  • Clean digital compression
  • Attack and release synced to track tempo
  • Tempo sync to DAW, manual or automatic detection from audio input
  • Variable compression knee
  • Internal or external sidechain
  • RMS mode for the sidechain
  • High pass filter up to 1000Hz for the sidechain
  • Feedback or feedforward modes
  • Dual mono mode for wider stereo image
  • Up to 16x oversampling
  • Dry/wet mix knob for parallel compression
  • Presets designed by Antonio Porcelli
  • Hardware accelerated GUI
  • Apple M1 support
  • Mac OS X (10.11 and later with Metal support) and Windows (7 and later) support.
  • 64-bit plugins for macOS and Windows.
  • Audio Units, VST, VST3 and AAX format.

Antonio Porcelli lives in the south east of Italy, in beautiful Puglia and he’s an Italian sound engineer. He is mainly known for his work with Caparezza. His name can be found in records together with with Chris Lord Alge, Gavin Lurssen and Reuben Cohen.

On the live side he has done shows all over the world, Italy, Europe and the United States.

Copy protection

The HoRNet SyncPressor has no copy protection, we don’t believe in copy protection, they are always cracked and they are annoying for the users, we all know you are not going to give away the plugin on the internet…

So simply download the plugin and enjoy your recordings!

2 thoughts on “HoRNet SyncPressor

imstre says:

Great job! Grande lavoro! Ottimo! Grazie!

Robert Jauner says:

Hi, nice ideas about parameters to go straight to mastering settings with good Sound.
A wish : in metering levels, showing (reading) peak value would be great

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