ABox response and potential fault
Posted: Sun Aug 02, 2020 7:43 am
Hi,
I recently purchased the ABox and I'm really not certain that it's functioning correctly, and I was hoping someone else with the device could confirm the behaviour. In the first file that I have (hopefully) attached is a very simple waveform: It's a 440 hz sine wave that starts at 100% amplitude, steadily decreases to 20% (at the 10 second mark), then reverses and increases back to 100%.
On my ABox, the output from this file is absolutely nothing like you would expect. I set my audio device output to 100% (and have tested at slightly lower volumes, to avoid any potential clipping related issues), and I set the ABox to a reasonable output level (around 50%), and play the file.. the output actually increases from the 3 second to 5 second mark, then it completely drops off a cliff at 6 seconds and there is zero output. The output comes back quite suddenly and strongly at around 11/12 seconds, and stays at roughly the same level until the file ends (and loops). The audio level LEDs react correctly for the file.
This surely cannot be the expected output for such a simple file? Similarly, using a tool such as the one here: https://onlinetonegenerator.com/ - I set the volume slider on the site to 100% and play a test tone, and turn the ABox up to to a comfortable, high level. When I take the volume slider down on the site, the power output from the ABox increases until I get to about the 80% mark, then very suddenly drops to 0, at around 75% on the slider.
The second attachment (test_mono.mp3) is another file that results in a highly unexpected output. It's taken from a very long stim file that somebody has designed for a two channel device, that I have converted to mono to see if it explained what I experience with it (it did not).
The file produces some quite pleasurable sensations with the ABox set to around 60%. If you view the file (or listen to it) you can see that beginning at around 41 seconds is a gradual fade out to silence. At around 43 seconds, my ABox produces what I can only describe as horrifically shocking and painful 'thumps', resonating at around 2 hz, at a much higher power output than anything previously produced by the file. Again, there is nothing in the waveform that indicates that this should occur, and it seems highly likely that it's linked to the "spike / peak on 50%" thread that somebody posted a few years ago.
WARNING: If you're testing this file with an ABox, keep your hand directly on the power dial! I don't think that I'm exaggerating to say that the sensation at 43 seconds is extremely painful, if your device reacts in the same way as mine
Thank you for reading, and I very much hope that somebody with an ABox can confirm that this behaviour is not normal!
I recently purchased the ABox and I'm really not certain that it's functioning correctly, and I was hoping someone else with the device could confirm the behaviour. In the first file that I have (hopefully) attached is a very simple waveform: It's a 440 hz sine wave that starts at 100% amplitude, steadily decreases to 20% (at the 10 second mark), then reverses and increases back to 100%.
On my ABox, the output from this file is absolutely nothing like you would expect. I set my audio device output to 100% (and have tested at slightly lower volumes, to avoid any potential clipping related issues), and I set the ABox to a reasonable output level (around 50%), and play the file.. the output actually increases from the 3 second to 5 second mark, then it completely drops off a cliff at 6 seconds and there is zero output. The output comes back quite suddenly and strongly at around 11/12 seconds, and stays at roughly the same level until the file ends (and loops). The audio level LEDs react correctly for the file.
This surely cannot be the expected output for such a simple file? Similarly, using a tool such as the one here: https://onlinetonegenerator.com/ - I set the volume slider on the site to 100% and play a test tone, and turn the ABox up to to a comfortable, high level. When I take the volume slider down on the site, the power output from the ABox increases until I get to about the 80% mark, then very suddenly drops to 0, at around 75% on the slider.
The second attachment (test_mono.mp3) is another file that results in a highly unexpected output. It's taken from a very long stim file that somebody has designed for a two channel device, that I have converted to mono to see if it explained what I experience with it (it did not).
The file produces some quite pleasurable sensations with the ABox set to around 60%. If you view the file (or listen to it) you can see that beginning at around 41 seconds is a gradual fade out to silence. At around 43 seconds, my ABox produces what I can only describe as horrifically shocking and painful 'thumps', resonating at around 2 hz, at a much higher power output than anything previously produced by the file. Again, there is nothing in the waveform that indicates that this should occur, and it seems highly likely that it's linked to the "spike / peak on 50%" thread that somebody posted a few years ago.
WARNING: If you're testing this file with an ABox, keep your hand directly on the power dial! I don't think that I'm exaggerating to say that the sensation at 43 seconds is extremely painful, if your device reacts in the same way as mine
Thank you for reading, and I very much hope that somebody with an ABox can confirm that this behaviour is not normal!