iPhone Xs Bluetooth audio quality

I have been frustrated myself about all of this audio issues. I have found however that the temporally solution of turning off the Wi-Fi works but is something that I would not expect to do all times.

Another aspects that I just founded out: I live in Brazil and my iPhone X is from US. I have other iPhone that I brought from US that have the same issue but if I use a iPhone built or offered in Brazil there is no audio frequency shift whatsoever. So maybe one of the issues would be related to the frequency set ups each country have vs the ones configured or embedded to each iPhone.

With that said, could any one else confirm if the problem still exists even if you have a "local" iPhone? Meaning, is the Bluetooth audio issue still persists even if the car audio and iPhone were designed for the same World area location?

This isn’t an issue with most devices, indicating its more likely an issue with the BMW head end than with the iPhone.

Have any of you checked with BMW to see if they have a firmware update?

Turning off WiFi unfortunately did not work for me. I did however talk to another Tech at Apple and was told this:

“........they are hoping to be able to fix it through one of the updates, however, it isn’t out there yet.” When asked how long it may take this was the response:

”I really can’t say, I can just tell you that they know about the issue, and they usually don’t waste time resolving them as quickly as they can if there is a fix for them” I am crossing my fingers and hoping for a fix!

Note that some of that may be due to unavoidable interference between WiFI and Bluetooth as they both use the 2.4 GHz frequency band.

Resolve Wi-Fi and Bluetooth issues caused by wireless interference - Apple Support

jonas216 wrote:

I got Audi to run an analysis and they didn’t find any issues in the car and told me that they think the issue is that the receiver is protecting the sound system from the signal coming from the phone and an issue with Apple CarPlay.

That's complete nonsense.

If it's happening both wired and via Bluetooth it's an issue with the way the DAC in the Audi is handling the signal.

As an example, music sounds wonderful over Bluetooth on a Denon D-M41 mini home stereo.

Were this a Bluetooth issue per se, it would not.

Turning off the wifi has resolved this issue for you?

In a car from 2010 I think it’s save to say it does not support the aac audio extension of BT. So maybe it only appears on receiver chipsets which support aac?

Exact the same problem with my

iPhone X, iOS 12.0.1 in a BMW 118i 2018.

iOS- Restore WITHOUT backup-installation: no success. Issue persists.

Also had the problem in my car with another iPhone XS in my car.

With iOS 11.4.1 no problems.

I'm also experiencing the same issue, except the devices in question are different. My device is the iPad Pro 10.5 inch, and I see the same problem when paired with my Sony WH-1000XM2 headphones as well as the JBL Charge 3. Ever since the iOS 12 update, the quality has been consistently dropping in and out, more on the worse side. My headphones and speakers are perfectly fine, as verified by pairing with a MacBook Pro as well as a Samsung. Clearly looks like a major iOS problem consistent across all devices... And iOS 12 was supposed to be all about stability.

I've had this exact same issue ever since I updated to iOs12. I have an iPhone X and use a Bang & Olufsen bluetooth headphone and my car stereo but there's no difference... bluetooth audio (using Apple Music, Spotify and even Tidal) keeps on swinging from 320kbps quality to 128kbps quality. Reported this issue on here a while ago but got almost no response. It's good to hear that I'm not the only one with this problem, but it's also Annoying that Apple doesn't seem to pay any attention to this issue.

Confirming here since upgrading to iOS 12. Luckily found a link to this post to voice my concerns. I also called Apple technical support to report as well.

I have a 2015 BMW X5 XDrive35i and cannot listen to music over Bluetooth because the audio quality changes from a high pitch to a muffled pitch intermittently.

My car was dropped off at the dealership on Monday for this issue and a few other repairs. I thought it was BMW’s fault until testing my iPhone XS Max and older iPhones on my loaner car - 2019 BMW X3 - which is having this same issue ONLY with my iPhone XS MAX and iphones running iOS 12+

I am also experiencing audio issues that started immediately when I started using my new iPhone XS max. My car is a 2012 GMC Acadia. Other family members with older iPhone models, and with the latest update, can still use the Bluetooth with no issues.