Hi,
I just received my new Procyon yesterday (8 days to New Zealand - not too bad).
Apart from one problem everything is just fine - it is everything I expected.
The problem I have has been reported here by a number of people, but I have not seen any satisfactory solution posted.
When using the Procyon to provide visuals using AudioStrobe from NeuroProgrammer 2 while also powering the Procyon by USB there is unnacceptable noise synchronous with the LED operation.
Details:
Laptop PC running NeuroProgrammer Pro (latest version as at yesterday).
The Procyon arrived with the latest firmware (2.1.0)
Headphone output connected to Procyon Aux.
Headphones plugged into Procyon output.
USB cable plugged into Laptop USB/Procyon USB.
Procyon set to AS Mode.
It all works perfectly - AS levels can be controlled from NP, volume controls on PC and Procyon do exactly what you expect - except for what could best be described as dirty white noise that corresponds exactly to the flashing LEDs.
Turning the LED brightness control on the Procyon until the LEDs extinguish stops the noise.
Unplugging the glasses stops the noise.
Unplugging the USB cable (running Procyon on batteries) stops the noise.
Using a powered USB hub betwen PC and Procyon makes no difference.
Running the Laptop off battery instead of mains makes no difference.
Changing to a high quality USB cable makes no difference.
The problems relates exclusively to AS+USB - all other variations are fine.
There is no noise when running the glasses from a Procyon session while powering the Procyon from the USB and listening to NP directly from the laptop (no AS connection), so I don't believe the Procyon is creating electrical noise on the USB.
I am a computer engineer of many years experience and after the numerous connection permutations I have tried I am convinced that the noise is generated within the Procyon.
This is rather unfortunate, as I have particular reason to require this combination, and the featureset of the Procyon that made it appear workable is a key reason for choosing the Procyon.
I would appreciate confirmation that this is a Procyon problem and advice of anything that can be done to correct it. As I'm in New Zealand sending the unit back is not a good option and I am willing to 'work around' the problem (i.e. use batteries or a separate USB power adaptor).
Kind Regards,
Craig
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