CarPlay audio quality of the voice when it is connected through the USB port is poor vs Bluetooth on Pioneer AVH-4200NEX

Hello!

I recently installed a Pioneer AVH-4200NEX unit, I was super excited to improve my car with the support of CarPlay, and everything works great except for one thing.  When I connect my iPhone (6s +) to the unit via a USB cable and a standard phone call, the audio quality is very bad - hail, very downsampled, and metallic sounding compared to the use of Bluetooth via the unit to pioneer for the same phone call (I'm on LTE, using HD voice, although the quality difference is quite noticeable on the calls not HD and on the 4 G calls).  I looked for an answer to this question, but the best that I can find mention of limited USB bandwidth and try to juggle than the bandwidth for the rest of the CarPlay experience, although I don't buy not because audio via the iPhone connected with USB playback is just as clear that it is through Bluetooth.  So my question is: How can I submit a bug report Apple about this behavior and (b) do you have other CarPlay users also be known this recent problem on a unit of Pioneer NEX (AppRadio included)?  It would be great if this is a bug of Pioneer for which they can release a firmware update, I'm just worried that it is a codec problem specified by the CarPlay, so non repairable.

Thank you!

-Seth

Hello served,

Thank you for using communities of Apple Support.

I understand that when you use the USB cable for your iPhone in your car with the audio CarPlay is mediocre. I know how it is important for you to hear your calls clearly. In a situation like this, I recommend the steps described in the following article to help solve the problem.

Configure CarPlay to use with your iPhone

Specifically the section to get help:

Get help

If CarPlay does not work as you expect, here's what you can check. After each step, try to use CarPlay again.

  1. Make sure that Siri is turned on.
  2. Restart your iPhone and your car. Depending on your car, you can see the CarPlay home screen when you turn it on. If you do not, look for the CarPlay logo on the screen of your car.
  3. If possible, connect your iPhone to a different USB port in your car.
  4. Try a different lightning to a USB cable. Make sure that the cable is certified.
  5. Update to the latest version of iOS.
  6. Check the manual using your car. You may need to install updates of firmware for your stereo.

See you soon

Tags: iPhone

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