You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

💡 Did you know?

⏺ If you can't accept iCloud Terms and Conditions... Learn more >

⏺ If you don't see your iCloud notes in the Notes app... Learn more >

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

iOS 9 lightening to USB audio clicks and pops

Hello,

I use my iPhone in a Chevy Volt via lightening cable to the car's usb port. After upgrading my iPhone 6 to iOS 9, the audio consistently clicked and popped. This only happens via usb, and audio from the headphone port is fine. I confirmed this with the Music app, ibooks, iHeart Radio, and Pandora. I put the phone in airplane mode and it had no effect, meaning, the clicks and pops still existed.


I quickly downgraded my phone to iOS 8.4.1 before apple doesn't allow it anymore, and everything is back to normal. No clicks and pops.

I'm putting this out there to:

  1. see if anyone else had this issue
  2. see if anyone else came up with a solution
  3. to let apple know this needs to be fixed in their next update hopefully.


It's a shame that this glitch happened. as otherwise, my phone was great with iOS 9.

Thank you.

iPhone 6, iOS 9

Posted on Sep 18, 2015 7:19 AM

Reply
122 replies

Nov 11, 2015 12:20 PM in response to Xandy Barry

Many people seem to think this is an iOS9 + GM issue, but it's been going longer than that.


I have a 2014 Nissan Pathfinder ST-L (with Bose audio) and have had the issue since purchase 18 months ago (was that iOS7?). At first everyone at Nissan and Apple denied that there even was an issue, so it's good that so many of you have reported the issue to Apple.


I have a mix of 320MP3 and ALAC lossless files, so I originally presumed that was the issue, but the popping is indiscriminate across files.


This has been a serious problem for a long time. Considering I've always used Apple for audio related work, this is potentially my biggest gripe with their software in over 10 years. I have actually considered moving away from iPhone purely to resolve this issue.

Nov 21, 2015 6:20 AM in response to warpbrained86

2011 GMC Terrain SLT2 just spent a week at the dealership for this issue. Replaced USB port in center console, replaced receiver, still pops and clicks. Sounds like I am playing a dirty, abused record! Changing cords, 6 Plus, iPad, Pandora or stored music, no change. Plug in my old 2nd gen iPod and beauty!


I think since the Beats acquisition, Apple may have tweaked the data stream out of their player software to enhance the sound.


I believe the USB out of our devices is a digital signal and converted to audio by a DAC in our radios. I suspect the pops and clicks are data in the stream that is outside the parameters of our DAC chips.


I hope Apple can fix this. Maybe by sensing the handshake between the DAC's and changing the audio profile?


Apple, HELP!

Nov 23, 2015 1:34 AM in response to BDGroov

You're right: the problem is not in your car, it's in the iOS software. However, it's not just the music app, it's the whole iOS9 audio system that had this issue. Any audio you play under iOS9 will pop and click. Even stuff like Apple/Google Maps directions.


There is some good news however: iOS9.2 does seem to fix the issue. There still are some issues under 9.2 where long audio files have similair issues (see above). But if you wait out until iOS9.2 your audio nightmare should be over 🙂

Nov 26, 2015 2:04 PM in response to warpbrained86

Hello here ...


I've just been dropped here because I was looking for people who had the same problem than me and I'm happy not to be alone in this mess ...


I have an Audi A1 with AMI sound system and since I've done the iOS 9.1 update on my iPod Touch 5G (it was under iOS 8 before), it makes me cry but no way I can play music from my iPod ... this is quite ... embarrassing 😟


I've read few pages of this thread and I really hope that the 9.2 update will fix the problem. Before the iOS 9.1 update, everything just worked fine ...


On my side, I can't play any music from my iPod, neither with the lightning cable or with Bluetooth. I do usually use the cable.


Kind regards,


Cedric

Dec 1, 2015 3:05 AM in response to warpbrained86

Same issue here with an iPhone 6s plus and iOS 9.1.


Not only car audio systems are affected.


When I connect the iPhone to a Sound Blaster E5 USB DAC / Headphone Amp with a Lightning - USB cable I get the same static clicks and pops as described ny many of you.


Connection via Bluetooth works flawless but I prefer a cable connection.


An Android Sony Xperia Z2 works without error with cable and Bluetooth connection.

Dec 1, 2015 2:50 PM in response to warpbrained86

Hi Everyone. An interesting development to this. It seems Apple are on their way to fixing this with iOS 9.2. I downloaded the latest iOS 9.2 Public Beta (currently at Beta 4) and the issue has almost gone away. The crackling and popping is definitely less often (every couple of songs, not every couple of seconds like before) but definitely a huge improvement.


You can sign up for the public beta here: https://beta.apple.com/sp/betaprogram/ and download the iOS 9.2 beta straight away, which will improve the issue. Or, I suppose iOS 9.2 will be out normally (non beta) soon, if you didn't want to install beta software on your iOS device.


I've got a 2011 Holden Cruze with the infotainment system. Very pleased that Apple are getting this resolved!

Dec 4, 2015 4:19 AM in response to TrulzDaddy

Yes I agree. Having this issue in a 2012 Cadillac SRX and took it into the dealer. We tested the iOS device on three other same year cars and did not have the problem. My radio looks the same as all the other cars but has a different build code. It's a premium system that they said was only sold in a small number of cars. I have a great relationship with the dealer and they took the time to escalate to the GM audio liaison who has contacted Apple. Waiting for feedback.

Dec 7, 2015 12:53 PM in response to FastTrackTools

It seems this thread is now heavily moderated and most posts seem to get removed. I really have no idea why, but several of my replies and those of others who have contributed to get this issue resolved keep getting removed. The problem however is not fully gone, so don't get your hopes up too high.


Issue: stuttering and seek/skip like sounds will occur when playing long audio files over USB connection in Opel Ampera. The issue will arise anywhere between 3 and 30 minutes into a track or audio file. The issue will arise only when the phone is locked.


This only happens when the device is in LOCKED mode


It can be recreated easily:

  1. - Play a long audio file and wait for the issue to occur.
  2. - Once the issue occurs, UNLOCK the phone and the issue will be resolved.
  3. - Once the phone is LOCKED again (either auto-lock or manual) the issue will come back immediately.
  • PAUSING the playback and waiting around 5-10 seconds until playing again will also resolve the issue temporarily.
  • It can be predominantly heard using spoken word media. The issue will happen with music, but due to high dynamics certain music types can have, the issue might be less noticeable.

Dec 8, 2015 6:14 PM in response to TheTominator

UPDATE: The clicking is fixed with today's iOS 9.2 release. But, as others had pointed out along the Public Beta path, a new issue has arisen. Mine is that after a few songs (between 2 and 5), the audio starts being garbled and skippy about 10 seconds in. Pause and play gives it a few seconds of clear audio again, but it returns. Unplugging the cable and connecting it again fixes it for another round. I'll do more testing another day.


iOS 9.2, iPhone 6s, Apple Music, 2011 Saab 9-5.

iOS 9 lightening to USB audio clicks and pops

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.