Thanks to John H. Halpern, M.D. for sharing new recordings using his ‘First Look’ units.
The recordings are two .wav 48kHz/24bit files using a portable Zoom digital recorder set in XY setting.
Remember, the quality of these recordings will be highly dependant on the device you are using, try to use a good pair of headphones if you can.
JHH does report small ‘signal loss skips’ in each recording with his ‘First Look’ units. These small signal losses within range were due to a software bug. This bug has now been eliminated and the only signal losses you will experience with the production models will be if the FS-X is out of range (10 m for single mode, 5 m for dual mode). Or if you were to try to operate dual mode between walls or doors.
After all the bug fixing, tweaking and testing, we’d like to confirm our final position on a few functions and specs.
Battery warning (audible alarm)
In reference to Update #79, at highest volumes (around 110 dB) and whilst the FS-X is not fully charged, there is a small possibility of false low battery detection, triggering the audible battery alarm.
The audible warning could possibly be triggered if you use the FS-X wirelessly at its highest volume, 110 dB, and only if the battery charge level is below around 3.6V.
Having thought long and hard, the solution of removing the warning altogether seems too drastic. For most users, they are unlikely to use the speaker at its highest volume of 110 dB for longer than a couple of hours. With consideration to health warnings and our disclaimer, and remembering that 110 dB is 2 times louder than 100 dB, or 16 times louder than 70dB, we recommended to limit exposure at this volume to no more than 30 mins.
For normal use, the audible warning serves an important purpose. So we have come to the conclusion that either removing this feature or limiting volume would impose greater annoyance than the rare ( possible) occurence of a false audible warning. Instead, we will issue an application note pointing out that there are workarounds.
Advice on high volume (110 dB ) operation:-
We recommend that if you want to operate the FS-X at its highest volume for extended periods of time (> 3 hours), either:
A. Make absolutely sure the battery level is fully charged beforehand. Or,
B. If you know in advance you want to play at 110 dB for a 3 hour + session and you want to absolutely guarantee the alarm will never be triggered, we recommend using the USB charge cable (or use it after 3 hours).
Note:- this does NOT mean you are tied to a wallplug, a powerbank will work equally well.
How will you know if the battery is fully charged? With the charge cable plugged in, if the red light stops flashing, it's fully charged. You can also check the icon on your device (but remember in dual mode this only indicates charge level on master FS-X).
Automatic power-saving is implemented.
If the FS-X detects no music after 15 minutes, it will automatically go into power-saving mode. In power-saving mode, consumption is so low it would only drain the battery in 4 years.
These features have all been thoroughly tested and re-tested after the various software changes and bug fixes. They are all working perfectly, with no issues.
- Full thermal protection circuit
- Battery safety circuit
- Charge circuit protection
We are in the final phase of testing to ensure the FS-X is 100% ready for commercial purposes.
Once we have completed final software testing, we will be able to provide you with more pictures, videos, a specific timeline and we will resume reviews with professional bloggers and YouTube vloggers.
Your next update will be no later than a week from now, Wednesday 2nd September.
All the best,
The Frankenspiel Team