Hearing Aids

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Topic review
   

Expand view Topic review: Hearing Aids

Re: Hearing Aids

by photoSteveZ » Thu Oct 20, 2022 3:07 pm

Good news: I updated my Delta Zulu headset to the latest firmware using the Lightspeed phone app, and the squeal was gone during a flight this morning.

Re: Hearing Aids

by photoSteveZ » Tue Oct 18, 2022 1:42 pm

Boatguy wrote: Tue Oct 18, 2022 3:43 am
photoSteveZ wrote: Mon Oct 17, 2022 6:56 pm Rich, I’ve never tried attaching a charging cable with the LiPo case attached and the headset receiving ship power. The manual suggests that ship power alone will keep the LiPo charged, but they clearly didn’t reckon with whatever is injecting the squeal.
There is no squeal with you use the AA battery pack with no batteries, and LEMO?
Correct. Annoyingly, the squeal introduced by the LiPo case is intermittent. But it’s a 90/10 sort of intermittency so I have yet to characterize the magic incantation required to avoid it.

Another annoyance I’ve noted with the Delta Zulu is that the 62’s overhead RACC vent tends to blow air on the headset’s external ANR microphone, depending on seating position and the aim of the vent, which can produce the familiar wind-over-mic crackle in your ears.

Re: Hearing Aids

by Boatguy » Tue Oct 18, 2022 3:43 am

photoSteveZ wrote: Mon Oct 17, 2022 6:56 pm Rich, I’ve never tried attaching a charging cable with the LiPo case attached and the headset receiving ship power. The manual suggests that ship power alone will keep the LiPo charged, but they clearly didn’t reckon with whatever is injecting the squeal.
I just ordered one and now I'm having second thoughts. Clearly they have some sort of bug. If it's not fixed by firmware, then that's a problem.

There is no squeal with you use the AA battery pack with no batteries, and LEMO?

Re: Hearing Aids

by photoSteveZ » Mon Oct 17, 2022 6:56 pm

Rich, I’ve never tried attaching a charging cable with the LiPo case attached and the headset receiving ship power. The manual suggests that ship power alone will keep the LiPo charged, but they clearly didn’t reckon with whatever is injecting the squeal.

Re: Hearing Aids

by Rich » Mon Oct 17, 2022 6:51 pm

photoSteveZ wrote: Mon Oct 17, 2022 6:41 pm
Rich wrote: Mon Oct 17, 2022 6:20 pm
photoSteveZ wrote: Sun Oct 16, 2022 9:05 pm Yes, the Delta Zulu comes with battery holders even if you order the panel-powered LEMO version. I’ve discovered that I cannot use the LiPo battery in the airplane because it somehow adds a bad squeal in the headset when the LEMO jack is powered on. Any ideas? Lightspeed customer service has no answers for me.
A question: Do you have built-in LEMO plugs in your plane or are you using the GA Dual/LEMO adapter we came up with?
Built in. So far as I know, all DA62s have powered LEMO jacks at every seat.
Good to know that the squeal isn't my fault :D Maybe there's some noise in the avionics power bus that the LiPo charging circuit is sensitive to. Does this happen when you have charging power applied to the battery at the same time? Maybe try different combinations of charging cable connected and not with and without charging power actually applied.

Re: Hearing Aids

by photoSteveZ » Mon Oct 17, 2022 6:41 pm

Rich wrote: Mon Oct 17, 2022 6:20 pm
photoSteveZ wrote: Sun Oct 16, 2022 9:05 pm Yes, the Delta Zulu comes with battery holders even if you order the panel-powered LEMO version. I’ve discovered that I cannot use the LiPo battery in the airplane because it somehow adds a bad squeal in the headset when the LEMO jack is powered on. Any ideas? Lightspeed customer service has no answers for me.
A question: Do you have built-in LEMO plugs in your plane or are you using the GA Dual/LEMO adapter we came up with?
Built in. So far as I know, all DA62s have powered LEMO jacks at every seat.

Re: Hearing Aids

by Rich » Mon Oct 17, 2022 6:20 pm

photoSteveZ wrote: Sun Oct 16, 2022 9:05 pm Yes, the Delta Zulu comes with battery holders even if you order the panel-powered LEMO version. I’ve discovered that I cannot use the LiPo battery in the airplane because it somehow adds a bad squeal in the headset when the LEMO jack is powered on. Any ideas? Lightspeed customer service has no answers for me.
A question: Do you have built-in LEMO plugs in your plane or are you using the GA Dual/LEMO adapter we came up with?

Re: Hearing Aids

by photoSteveZ » Sun Oct 16, 2022 9:12 pm

Boatguy wrote: Sun Oct 09, 2022 11:30 pm
photoSteveZ wrote: Sat Oct 08, 2022 10:41 pm I wore my hearing aids under the headset while I took the test (my hearing aids turn themselves off when they detect that I'm wearing a headset) and the high frequency boost curve that the Lightspeed app then programmed into the headset looks a lot like the one my hearing aids use.
Did you take the test in the plane, or on the ground? In his review, Max Trescott's did the test in quiet room, but it seemed to me I'd want o do the test in the plane, in flight to get a "real world" equalization curve".

In any case, is there a noticeable improvement in the sound quality versus the hearing aids?
The Lightspeed phone app suggests doing the test in a quiet room. In the plane you wouldn’t be able to hear their subtle test cues. When you’re done, the app plays a few bars of music with and without the equalization curve to give you a chance to hear what the equalization curve is doing for you.

Since my hearing aids turn off when they detect a headset, all I can really say is that the new Delta Zulus deliver good audio, with noticeably crisper voice reproduction, than either my other Zulus or my Bose A20s.

Re: Hearing Aids

by photoSteveZ » Sun Oct 16, 2022 9:05 pm

Rich wrote: Sat Oct 08, 2022 11:31 pm Steve, I’m a bit confused. If you got the panel-powered version did they also somehow supply the battery components? The Zulu3 doesn’t come that way.

To operate Clarity Aloft most effectively one inserts the earpieces well into the ear canal. This is not like air pods.
Yes, the Delta Zulu comes with battery holders even if you order the panel-powered LEMO version. I’ve discovered that I cannot use the LiPo battery in the airplane because it somehow adds a bad squeal in the headset when the LEMO jack is powered on. Any ideas? Lightspeed customer service has no answers for me.

Re: Hearing Aids

by Boatguy » Sun Oct 09, 2022 11:30 pm

photoSteveZ wrote: Sat Oct 08, 2022 10:41 pm I wore my hearing aids under the headset while I took the test (my hearing aids turn themselves off when they detect that I'm wearing a headset) and the high frequency boost curve that the Lightspeed app then programmed into the headset looks a lot like the one my hearing aids use.
Did you take the test in the plane, or on the ground? In his review, Max Trescott's did the test in quiet room, but it seemed to me I'd want o do the test in the plane, in flight to get a "real world" equalization curve".

In any case, is there a noticeable improvement in the sound quality versus the hearing aids?

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