Anyone else notice static/hiss during BT calls?

nycaudioma2 · 11-25-2017, 02:03 PM

Hi all - on my ‘18 M4 with an iPhone on iOS 11, I notice hissing during Bluetooth calls. The speakers will be silent until the other party speaks, at which time their voice comes in accompanied by background hiss. I also have to crank the volume to almost max.

The issue was worse when I had an ASD defeat harness installed, but is still here without.

M3OW! · 12-01-2017, 11:21 AM

'17 M3 with CarPlay. Device running iOS11. I experience the same problem when the phone is not also plugged in. Call quality is so bad that it is truly unusable.

Plug the phone in and there is no problem with call/connection quality.

Makes absolutely no sense and drives me insane. In my previous car without carplay I never had a problem.

nycaudioma2 · 12-10-2017, 08:52 AM

Interesting! Do you notice the hiss only when using the built-in BMW telephone function, or when using CarPlay?

I had been noticing it when using the built-in telephone function, regardless of whether I was plugged into USB or not.

After seeing your post, I re-enabled CarPlay (which I otherwise haven't been using) and the hiss is GONE!

Switched back to the built-in function, and it comes right back.

Quote:

Originally Posted by M3OW!

'17 M3 with CarPlay. Device running iOS11. I experience the same problem when the phone is not also plugged in. Call quality is so bad that it is truly unusable.

Plug the phone in and there is no problem with call/connection quality.

Makes absolutely no sense and drives me insane. In my previous car without carplay I never had a problem.

Mr. Hankey · 12-10-2017, 09:18 AM

'18 with CarPlay and iOS 11. No problems...plugged in or not...connection is definitely not as loud as my '15 M3 was....although no hissing or interference/static.

Encanto · 12-11-2017, 01:41 PM

FYI: CarPlay uses WiFi or USB, not Bluetooth.

nycaudioma2 · 12-12-2017, 08:07 AM

Quote:

Originally Posted by Encanto

FYI: CarPlay uses WiFi or USB, not Bluetooth.

Encanto, does this mean that if you plug a phone into the USB port of the car, that the audio quality improves versus when using CarPlay over WiFi?

If that is true, it'd be worth the small effort to plug my iPhone in, instead of leaving it in my pocket when driving.

Encanto · 12-12-2017, 11:46 AM

USB data transfer is faster than WiFi, vis à vis. You may not hear the difference, though.

Quote:

Originally Posted by nycaudioman

Encanto, does this mean that if you plug a phone into the USB port of the car, that the audio quality improves versus when using CarPlay over WiFi?

If that is true, it'd be worth the small effort to plug my iPhone in, instead of leaving it in my pocket when driving.

M3OW! · 12-13-2017, 10:38 AM

I think the connection is a WiFi bluetooth handshake.

Mr. Hankey · 12-13-2017, 03:17 PM

Quote:

Originally Posted by Encanto

FYI: CarPlay uses WiFi or USB, not Bluetooth.

So even though I didn't opt for the wifi option in my '18 but have CarPlay does that mean I can program on or VO code my Wifi on?

Encanto · 12-13-2017, 06:24 PM

Quote:

Originally Posted by rhk118

So even though I didn't opt for the wifi option in my '18 but have CarPlay does that mean I can program on or VO code my Wifi on?

This is not the WiFi hotspot (6NW) so it cannot be coded as the hotspot hardware is not present.

11-25-2017, 02:03 PM	#1
nycaudioma2 Private 13 Rep 67 Posts Drives: '18 M4 Join Date: Feb 2017 Location: NYC iTrader: (0)	Anyone else notice static/hiss during BT calls? Hi all - on my ‘18 M4 with an iPhone on iOS 11, I notice hissing during Bluetooth calls. The speakers will be silent until the other party speaks, at which time their voice comes in accompanied by background hiss. I also have to crank the volume to almost max. The issue was worse when I had an ASD defeat harness installed, but is still here without.
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12-01-2017, 11:21 AM	#2
M3OW! First Lieutenant 373 Rep 340 Posts Drives: 2020 F97 X3MC Join Date: Aug 2017 Location: CT iTrader: (0)	'17 M3 with CarPlay. Device running iOS11. I experience the same problem when the phone is not also plugged in. Call quality is so bad that it is truly unusable. Plug the phone in and there is no problem with call/connection quality. Makes absolutely no sense and drives me insane. In my previous car without carplay I never had a problem. __________________ Current: 2020 DGM X3MC \| Black Merino/Black Alcantara/Mid Beige\| Exec \| LED \| Moon roof \| v1 \| ASDelete Previous: 2017 AW M3 \| Full Cohiba \| Comp \| Exec \| Lighting \| MPE \| v1 (RIP) Previous: 2014 JB 535d \| Msport \| Exec \| Premium \| Lighting \| v1
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12-10-2017, 09:18 AM	#4
Mr. Hankey Christmas Poo 1027 Rep 1,179 Posts Drives: Incoming G87 Join Date: Oct 2014 Location: New England iTrader: (0)	'18 with CarPlay and iOS 11. No problems...plugged in or not...connection is definitely not as loud as my '15 M3 was....although no hissing or interference/static. __________________ Read...no drive, the manual.
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12-11-2017, 01:41 PM	#5
Encanto Colonel 1164 Rep 2,180 Posts Drives: 2021 X3 M40i Join Date: Nov 2015 Location: Ohio iTrader: (1)	FYI: CarPlay uses WiFi or USB, not Bluetooth.
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12-13-2017, 10:38 AM	#8
M3OW! First Lieutenant 373 Rep 340 Posts Drives: 2020 F97 X3MC Join Date: Aug 2017 Location: CT iTrader: (0)	I think the connection is a WiFi bluetooth handshake. __________________ Current: 2020 DGM X3MC \| Black Merino/Black Alcantara/Mid Beige\| Exec \| LED \| Moon roof \| v1 \| ASDelete Previous: 2017 AW M3 \| Full Cohiba \| Comp \| Exec \| Lighting \| MPE \| v1 (RIP) Previous: 2014 JB 535d \| Msport \| Exec \| Premium \| Lighting \| v1
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