Today I’ve got a few little snippets of ‘stuff’ – not enough to justify a whole post, but worth sharing anyway.

Audiostrobe Ganzfeld

Since the Ganzfeld Extravaganza I’ve been asked for more details on creating a ganzfeld effect with MWS or NP2.

With MWS you set up an entrainment track with a beat of 192Hz and an isochronic tones track with a pitch of 19,200kHz. You can then use the volume modulation effect to add a gentle variation to intensity – a volume modulation rate of 0.1Hz or less looks great. If you’re using bicolour glasses, the colour depends on the left/right balance, so you can control the two channels by having two tones track, one with the balance hard left, the other hard right. You can also use the 3D positioning effect with the back-and-forth preset (try increasing the room size and stretching the graphical left/right swing).

With NP2 you’ll need a tones track with a pitch of 19.2kHz and a rate of 192Hz. You then add nodes and set the tone volume to create whatever rising and falling of brightness you wish. Again, two tracks for independent colour control.

You can use any pitch you wish, but 192Hz is a submultiple of 19.2kHz and thus prevents any unnecessary flickers by ensuring the two frequencies maintain a constant phase relationship.

In both case you may hear the 19.2kHz signal – adjust volume for best sound and light, or add additional tracks with entrainment or entertainment content to mask the sound.


When I embarked on the book writing exercise that became this blog, I emailed many vendors requesting permission to quote material from their sites and offering to review their products. I have been very clear that I wasn’t particularly asking for freebies, but would buy at a good price, borrow and return, or, of course, gratefully receive gifts. Nearly all who replied have been overwhelmingly generous with information (and permission to use it) and, as you can tell from the reviews, a number of machines arrived on various agreeable terms.

Photosonix, however, have consistently failed to respond to my emails. So, I can neither quote material on their site, or comment meaningfully on any of their equipment.

Since mentioning MindExplorer in my L&S Synergizer quick look, one of my friends kindly drew to my attention the fact that MindExplorer imports Photosonix sessions. I had seen the option but thought no more of it until I was alerted to the fact that you can download Photosonix sessions from their website.

If the Photosonix machines render the sessions as well as MindExplorer does, the machines are probably quite nice, but I guess I’ll never know. As it is, it’s well worth the download for a play with MindExplorer – interesting sessions, good effects and a bit more inspiration.

Laxman Goggles

In case you missed the P.S. on the ganzfeld post, the Laxman goggles are compatible with the Procyon and can be purchased as accessories from Neurotronics. The open-eye imagery with the Procyon is fabulous, and they would make a valuable addition to any AVS enthusiast’s kit.

Standard Glasses and the Procyon

The Procyon (and Laxman) use a flat connector similar to, but not the same as, a mini USB connector for the glasses. In order to use any of the mono- or bi-colour glasses, either from MindPlace or anywhere else (such as the Transparent 12-LED glasses), you’ll need the adapter cable from MindPlace. It provides a standard 3.5mm socket into which you can plug the standard 3.5mm CP glasses. As standard, the cable uses the red and green LEDs.

Random Sessions

Most mind machines have a random session option by some name or other. Random sessions are great for just kicking back and enjoying the sound and lights. I find them immensely relaxing and invigorating just by virtue of NOT attempting to entrain to any particular frequency. They give a wonderful brain workout.

Random sessions also provide excellent light accompaniment to music or other audio content – just listen to the audio from your laptop or MP3 player with the mind machine volume turned down for lights-only.

Mind Workstation has a multitude of tools for creating random sessions – the Random Engine is a powerhouse that can be applied to any MWS parameter – rate, pitch, volume, anything.

NP2 lacks any inbuilt random capability, but there’s free software by Sam Lin on his site, and by myself on the Transparent site. My one is a Windows application that’s rather fussy about having .NET 3.5 installed along with the Visual Basic libraries – just get in touch with me if you have any trouble getting to run – the fixes are scattered through Transparent forum posts anyway.

I’m sure there’s little bits and pieces that have slipped my mind, but that will do for now!


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