Bluetooth Voice Becomes REALLY Slow

At least once a day on conference calls via bluetooth headsets (several types - all equal) the voice I hear is slowed down (sounds very deep and is mostly unintelligible).

To fix, I switch to iPhone or Speaker and back or the call simply drops.

The person I am speaking to can hear that my voice has slowed down. (Sounds like when the voice of an informant is masked on tv.)

Other times I will lose all sound coming out of the call, however the call continues. Redialing into the call does not restore the sound. Only way to fix seems to be a hard reboot of the phone.

I have an iPhone 7+ iOS 11.3

Posted on Apr 3, 2018 10:59 AM

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69 replies

Aug 30, 2018 1:21 PM in response to noop510

The one issue I don't see anyone posting (they may but I must've not read it) is prior to the slowed/warbled sound, the iPhone actually "blacks out" for a few seconds - meaning the screen blacks out and the phone becomes unresponsive (tapping home button - no haptic feedback, power button, moving it from face down to face up doesn't revive it). When it finally recovers by itself (approximately 6 seconds the last time issue occurred to me), that's when the slowed/warbled voice occurs. Is this something quickly restarting?

Sep 14, 2018 9:45 PM in response to noop510

I am having the same issue. Iphone 7 128G Verizon network running 11.4. I even had Verizon send a 4G LTE Network Extender to my house to increase the signal (full LTE bars) and I still have the issue (possibly made it worse). I use BeatsX and Jabra BT headset and both have issues. We'll see with iOS 12 but please keep the posts coming on any progress.

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Bluetooth Voice Becomes REALLY Slow

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