Anyone know why ReSound Quattro’s might omit high-frequency beeps for no particularly good reason?
I had been charging my Quattro’s in their charger case, observing the % charge via the phone app, and chitchatting with my wife. As both Quattro’s reached the % charge I wanted, I removed them from the charging part of the case, put them in the carrying part of the case.
In a minute or two my wife asked, “What the heck is that high-frequency beeping noise?!” (I should say that standard signal beep on the devices is set to “low-frequency” as I have ski-slope high frequency hearing loss).
With my hearing loss, I couldn’t hear what she was talking about but I launched a frequency analyzer on my phone and it showed a sharp peak at 4.7 KHz. The wife insisted it was the hearing aids in their case and as soon as I picked them up out of the case the beeping stopped, both by her perception and the frequency analyzer analysis.
One possibility is just when charging I have been willy-nilly inserting the HA’s and removing them from the charging part of the case. Each time you remove one, it causes it to reboot and I’ve wondered whether it would screw them up if you just promptly inserted them back into the case, which I do sometimes without waiting for them to stop rebooting, usually because I willy-nilly decide I want to charge them some more. But the normal beeps associated with rebooting are low-frequency, as noted above. The other possibility is somehow that plopping them down in the case on a power switch caused the switch to be depressed but I don’t think that could have happened with enough force/weight to depress a switch to any extent. Another far-out possibility is that 4.8 KHz is the frequency the Tone Generator app was set to run at when I blasted my ears the other night fooling around with tone generation. At the time of the unusual beeping just now, my HA’s were connected to my phone via BT but the TG app was not running and does not have permission to run in the background.
Both Quattro’s show that they are charged to about 60% so it’s not one of the HA’s signalling that it’s battery is dying. And strange that the beeping stopped as soon as they were picked up (what made me entertain the switch depression hypothesis). I guess the “don’t stick them right back in the charger just after you’ve removed them” is still a possible explanation of how I temporarily screwed one up.
Edit_Update: Wife thinks HA’s might have been picking up strong EMF from some nearby electronic device so will try to replicate situation another day