PSY PAN Pro is a simple but yet effective psycoacoustic panning tool.

It brings a more natural, realistic and almost 3D-like binaural effect to your listening experience then a common panorama can do! PSY PAN tries to mimic the laws of nature and the way we humans hear! It's been created with sound-designers in mind, to give them one special, easy and fun to use tool in creating astonishing sound-effects there could be in the stereo-field. It can also be the tool of audio engineers in makeing their most stunning mixes for headphones!

Instead of regulating the loudness of left and right channels only, PSY PAN does 3 things simultanously! With only one slider you control the tiny amount of delay between left and right, the amount of a LP filter, which will be different for each side, and the loudness, of course - with 3 modes for headphones, and one for loudspeakers. Although it is designed to work in binaural mode, what makes the mixes not mono-compatible, but it hasn't to, by turning off the delay function between the left and right channels.

And, of course, I've included an option to go beyond the natural and left some room for experimental settings!
Feel free to download it, as it doesn't cost you anything, and I hope you'll enjoy using it!

Download - Latest version: 1.0

For the VST3 or AU version for MacOS please visit the forum
And if you like it, please...


Center Panel Switch

Switches the center panel between the MAIN section, MODULATION and WIND section

Left Panel - Bypass & Input choice

On / Off switches for the DELAY function, FILTER function and AMPLIFIER that regulates the loudness between the left and right channels. When turned off the signal just bypasses to the next module. With turned off DLY the output of PSY PAN becomes mono-compatible, but looses that extra bit for realistic binaural experience.

Input Choice - you can choose here the input that will be processed. Choices are: STEREO (default), MONO-MIX where Left and Right channels are being mixed together, MONO L and MONO R - each left or right channel only.

Right Panel - Filter Section

The Filter section. You can apply a frequency range to the Low Pass FILTER between 10 kHz and down to 25 Hz, where 10 kHz mean that it will filter only high frequencies above the 10 kHz, and do almost nothing, where a setting of 25 Hz will filter almost everything out with the exception of some really low bass frequecies on the opposite side of the pan slider with it's peak of 100%. The default and most natural setting will be about 1,75 kHz - 2 kHz!

Beside this you can choose between 6 filter slopes - 1 POLE and up to a 6 POLE filter slope, where 1 POLE equals 6 db per octave. With the maximum of 6 poles you get a 36 db per octave slope.
For natural feel and results, use the default setting of 1 POLE to 2 POLE.

Loudness Modes

4 modes of handling the channel related loudness. First 3 are best suited for binaural experience in headphones, these are HEADPHOES -3 db, HEADPHONES -6 db (default) and HEADPHONES -9 db. They can also be used for loudspeaker listening and mixes. However, there's one more LOUDSPEAKERS mode that will work as an usual panorama and direct all 100% of the volume to the left or the right. All 3 HEADPHONES modes will only reduce the volume of the opposite side by -3 db, -6 db or -9 db, with the filter function turned off, and more when the filter is on!

Pan Slider & Reset

The PAN slider is used to position the sound source between the left and right channels.

RESET - sets the PAN slider to center position.



That's the first and main BPM synced LFO. You can let it automate the PAN and WIND movement. Usually you will want the PAN slider to be exactly in the center position to modulate around it! There's the choice of 2 waveforms - SINE and TRIANGLE, and the DURATION according to the host's BPM value! If you want the LFO modulation to be accuratly synced, please consider to use the grid option in your DAW and start playing your project exactly from the begin of a bar, or the chorus of a song, whatever you choose as a starting point! Default setting - SINE as a waveform and 1 BAR in duration.


The second MOD LFO here is for the case you want to modulate the first LFO. There's the same choice of 2 waveforms - SINE and TRIANGLE, and DURATION! The choice of duration lengths will differ to the main LFO's, as the modulation of it is supposed to be few times slower! So the default value is here 4 BAR for duration and a TRIANGLE as a waveform.

MOD ON / OFF & Source

Here you can turn ON and OFF the modulation of the main LFO and choose between 2 sources for it - the MOD LFO and ENVELOPE wich can be triggered by the TRIGGER button. Default state is OFF and ENV as the modulation source.

Trigger Button

Triggers the envelope that modulates the main LFO everytime it's pressed. Does not sync the LFOs however.

Attack & Release

These sliders adjust the ATTACK and RELEASE times of the envelope. Default value is 50 for both.

Modulation Amount

That's the master AMOUNT slider for all the modulation sources in this section. Default value is 0. So, if you want to see/hear the modulation sources in action, turn it up!


Additionaly the plugin has a WIND section with a doppler engine for the imitation of windy fly-bys and extra feel of speed for the moving sound source when crossing the center, wich is at the same time the virtual hearing/head position. Please NOTE that so far, for the version 1.0, the WIND section works only in couple with the modulation! No windy effects for just moving manualy the PAN slider around.


CONTOUR is the main parameter that applies to the distance and "harshness" of the flying by wind noises. The larger the value the smoother will be the transition from one side to another. Truly close sounding fly-bys can be achieved with low values of 2-10%. Default value is however 50%.


This control adjusts the COLOR of the wind noise, from bright at the value of 100 to dark at zero. By defult it is bright with the value of 100. But here is no such a "natural" setting, it all depends on your creativity, the result you want to achieve, and the "together-play" with other parameters.


SENSITIVITY applies to the feel of speed of the moving wind noises, as it directly controls the amount of the doppler effect! On low values you will still hear noise moving from side to side, but there will be no audible doppler effect and much less information about the speed to the ears.


One more parameter that adds RESONANCE, some special extra for the feeling of speed, and at the same time "harshness" of a fly-by, that will be felt more agressive to the virtual hearing position with it's higher values.

Low Cut Filter

1 pole HP filter cuts off the low frequencies of the wind noise to make it sound light and airy.
Default value is 33, at 1kHz.

Wind Amount

Controls the volume of the wind noise being added to the rest of the signal.

PSY PAN was made with Synthedit

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